Review · secondary evidenceReview

Conjugated coordination polymers as multifunctional platform for electrochemical energy storage

Not printed in extracted local text · Coordination Chemistry Reviews · 2024

This dossier represents secondary evidence: section summaries, claims and benchmarks are paraphrased for this database, not quoted. Check quantitative values against the linked primary study, and cite the review itself (10.1016/j.ccr.2024.216098) for its arguments.

8review sections
6material families
19review claims
14secondary benchmarks
40cited studies
7research gaps

Review scope

Review conjugated coordination polymers as conductive, redox-active, porous platforms for electrochemical energy storage, emphasising chemical state, framework dimensionality, charge-storage mechanisms, structure-property relationships, and future design needs.

Coverage
1927–2024
Category
Review Theory Transport
Material scope
Conjugated coordination polymers and conductive MOF-like CCPs with extended pi-d conjugation · One-dimensional, two-dimensional, and emerging three-dimensional CCP frameworks · CCPs based on N, O, S and mixed heteroatom chelation
Transport scope
In-plane pi-d electron delocalisation · Interlayer pi-pi stacking and framework dimensionality · Ion diffusion through pores and stacking spaces · Mixed electron-ion processes during electrochemical redox
Application scope
Metal-ion battery anodes and cathodes · Supercapacitor electrodes · Lithium-sulfur battery hosts and separators · Metal-air and photo-involved oxygen battery catalysts
Explicit exclusions
Non-conjugated conductive MOFs except as comparison context · Full synthetic recipes and exhaustive battery-performance tabulation · Primary-data replacement for the cited original studies
Source
1 · Abstract
Evidence role
Context, taxonomy and secondary benchmarking

Section map

The review’s argument is preserved as a navigable set of section summaries.

CCPs as anode materials for metal-ion batteries

2-3

Organises anode behaviour around n-type reduction, ligand versus metal redox, chelating atom effects, and redox-site incorporation in the ligand backbone.

Relevance: Core · 2 · CCPs as anode materials for metal-ion batteries · Fig. 5-Fig. 6; Table 1

CCPs as cathode materials for metal-ion batteries

3-5

Covers high-voltage p-type or carbonyl-centred cathode processes, state-dependent Cu/O chemistry, framework dimensionality effects, and S-linker cathodes.

Relevance: Core · 3 · CCPs as cathode materials for metal-ion batteries · Fig. 7-Fig. 13; Table 1

Characteristics and superiority of CCPs

1-2

Explains ligand and square-planar metal coordination features, chemical-state ambiguity, synthesis-control issues, dimensionality, stacking, and the physical basis for EES performance.

Relevance: Core · 1 · The chemical and structure characteristics of CCPs · Fig. 1-Fig. 4

Conclusions and perspectives

7

Synthesises challenges in chemical-state control, crystallinity, 3D CCP construction, redox-potential tuning, ion transport, electrolyte compatibility, LSB films and catalyst stability.

Relevance: Core · 7 · Conclusions and perspectives

Introduction

1

Defines CCPs as a special conductive MOF class and motivates their use in EES through conductivity, redox activity, porosity, and the need to separate CCPs from broader non-conjugated cMOFs.

Relevance: Core · 1 · Introduction

CCPs as hosts or separators for lithium-sulfur batteries

6

Reviews CCPs as conductive, polar, porous hosts or membranes for LiPS trapping, ion transport, high sulfur loading and separator selectivity.

Relevance: Supporting · 6 · CCPs as hosts or separators for lithium-sulfur batteries · Fig. 18

CCPs as cathode catalysts for metal-air batteries

6

Positions CCPs as oxygen electrocatalysts or photoelectrodes where unsaturated metal sites and ligand electronics tune ORR/OER and Li-O2 kinetics.

Relevance: Supporting · 6 · CCPs as cathode catalysts for metal-air batteries · Fig. 19

CCPs as electrode active materials for supercapacitors

5-6

Summarises EDL and pseudocapacitive CCP behaviour, pore-size and ion effects, morphology/substrate strategies, and limits relative to porous carbon.

Relevance: Core · 5 · CCPs as electrode active materials for supercapacitors · Fig. 14-Fig. 17; Table 2

Taxonomies

Classification systems are attributed to this review and are not treated as a global material registry.

Redox State Of [M-X4] Units During Synthesis And CyclingAuthor-proposed

Coordination-unit chemical states

The review uses State A-D and n/p-type processes to explain why nominally similar CCPs can show different redox mechanisms, valence states and performance.

Categories: State A · State B · State C · State D · n-type reduction · p-type oxidation

8 · Figures and tables · Fig. 2

Connectivity And Stacking ArchitectureAuthor-proposed

Framework dimensionality and packing

CCPs are organised by whether planar units form 1D chains, 2D sheets, or rare 3D frameworks, with packing controlling electron pathways and ion transport.

Categories: 1D chains · 2D layers with AA stacking · 2D layers with AB stacking · 3D CCP frameworks

9 · Figures and tables · Fig. 3

Device RoleAuthor-proposed

Functional roles in energy storage

The review treats CCPs as multifunctional platforms, not merely active electrodes, by mapping structure and chemistry to device roles.

Categories: Battery and supercapacitor electrodes · Hosts or separators for lithium-sulfur batteries · Catalysts for metal-air batteries

9 · Figures and tables · Fig. 4

Organic Linker Structure And Chelating AtomsAuthor-proposed

Conjugated ligand design space

Figure 1 groups CCP linkers by size, conjugation extension and mixed heteroatom chelation, making ligand design the first organising axis for redox and transport properties.

Categories: Small conjugated ligands · Extending the pi-conjugation · Heteroatomic co-chelated ligands

8 · Figures and tables · Fig. 1

Electrochemically Active SitesAuthor-proposed

Capacity sources

Battery and capacitor performance is interpreted through which redox centres participate and whether metal nodes remain innocent or change valence.

Categories: Organic-ligand redox · Metal-centred redox · Dual ligand and metal redox · Additional backbone redox centres

2 · The superiority of CCPs in electrochemical energy storage · Table 1

Material families

Review-defined families retain their representative materials and conduction descriptions.

Three-dimensional CCPs

3D Framework With Square-Planar And Tetrahedral Cu Coordination Units.

Rare CCPs that maintain conjugated pathways while extending into a 3D framework through mixed coordination geometries.

Conduction: Extended in-plane conjugated chains and close pi-pi stacking are interpreted as efficient charge-transport pathways.

Representative materials: Cu-TAPT

Nodes / linkers: Cu · TAPT from in-situ TABQ dimerisation

4 · CCPs as cathode materials for metal-ion batteries · Fig. 12

Heteroatom co-chelated CCPs

1D, 2D And The Review'S Key 3D Example.

CCPs deliberately combining different chelating atoms, especially N/S or N/O, within the coordination unit.

Conduction: The review argues that mixing heteroatoms can combine conductive metal-sulfur bonding with metal-nitrogen stability and enable new redox mechanisms.

Representative materials: Ni-DTA · Ni-DABDT · Cu-TAPT · HATN-SCu · HATN-OCu

Nodes / linkers: Ni · Cu · dithiooxamidato · diamino-benzenedithiol · TAPT · HATN-derived linkers

3 · CCPs as anode materials for metal-ion batteries · Fig. 6

CCP hosts and separator membranes

2D CCP Layers, Composites And Membranes.

Conductive porous CCPs used to host sulfur, trap polysulfides, or modify battery separators rather than serving as the main redox electrode material.

Conduction: Electrical conductivity supports sulfur cathode charge transfer while pores and polar groups regulate LiPS adsorption and Li-ion passage.

Representative materials: Ni-HHTP-CNT sulfur host · Co/Ni-HHTP core-shell host · Ni-HITP/PP separator

Nodes / linkers: Ni · Co · HHTP · HITP

6 · CCPs as hosts or separators for lithium-sulfur batteries · Fig. 18

N-chelated imine/amine CCPs

Mostly 1D And 2D; Some N/O-Derived 3D Examples Through TAPT Chemistry.

CCPs built from N-chelating ligands such as BTA, HAB, HITP or TABQ around square-planar metal-nitrogen units.

Conduction: Extended pi-d conjugation and close stacking provide delocalised electron pathways; redox-active imine motifs enable n-type storage.

Representative materials: Ni-BTA · Co-HAB · Ni-HAB · Ni-HITP · Ni-TABQ

Nodes / linkers: Ni · Co · Cu · benzenetetramine · hexaaminobenzene · hexaiminotriphenylene · tetraaminobenzoquinone

2 · CCPs as anode materials for metal-ion batteries · Fig. 5-Fig. 7

O-chelated catecholate and quinone CCPs

1D Chains And 2D Frameworks, With Topology And Counterions Varying By Ligand And Metal State.

CCPs based on O-chelating HHTP, THQ, DHBQ and substituted benzoquinone ligands.

Conduction: Conjugated O-metal units combine ligand carbonyl/catecholate redox with possible metal valence changes; pore structures enable cation and anion movement.

Representative materials: Cu-HHTP · Zn-HHTP · Cu-THQ · Cu-Cl2DHBQ · Fe2(DHBQ)3

Nodes / linkers: Cu · Zn · Fe · Mn · Ni · hexahydroxytriphenylene · tetrahydroxyquinone · dihydroxybenzoquinone · chlorinated dihydroxybenzoquinone

3 · CCPs as cathode materials for metal-ion batteries · Fig. 8-Fig. 10

S-chelated dithiolene and thiolate CCPs

Primarily 2D And 1D Examples In The Review.

Sulfur-containing CCPs using TTO, BHT, BHT-like or dithiolene motifs to increase conductivity and support cation storage.

Conduction: S-containing linkers are presented as generally more conductive than N/O analogues, supporting fast charge transport and rate performance.

Representative materials: Ni-TTO · Cu-BHT · Ni-BHT · Ni2[CuPcS8]

Nodes / linkers: Ni · Cu · tetrathiooxalate · benzenehexathiolate · nickel-bis(dithiolene) · phthalocyanine-sulfur linkages

5 · CCPs as cathode materials for metal-ion batteries · Fig. 13

Synthesis strategies

Review-level synthesis principles remain separate from primary-study recipes.

Adding redox centres to conjugated backbones

Introduce additional carbonyl, HATN, phthalocyanine or quinone redox units into the ligand backbone.

Claimed effects: Increases active-site density and can tune voltage or capacitance by adding ligand-centred redox contributions.

Controlling variables: backbone functional groups · redox potential of substituents · hydrogen-bonding motifs · dual-site geometry

Representative materials: Ni-TABQ · HATN-SCu · Ni2[CuPc(NH)8] · Ni2[CuPcS8]

Caveat: Higher capacity does not by itself resolve ion transport, structural durability or full-cell voltage constraints.

3 · CCPs as anode materials for metal-ion batteries · Fig. 6

Framework dimensionality control

Use compositionally related systems and reaction-condition changes to switch between 1D, 2D and 3D CCP architectures.

Claimed effects: Dimensionality modulates ion accommodation, rate capability and long-term stability while preserving redox chemistry.

Controlling variables: reaction temperature · atmosphere · ligand oxidation state · metal coordination geometry

Representative materials: 1D-CuTABQ · 2D-CuTABQ · Cu-TAPT

Caveat: 3D CCP synthesis is rare because non-planar metal geometries can disrupt long-range conjugation.

4 · CCPs as cathode materials for metal-ion batteries · Fig. 11-Fig. 12

Heteroatom co-chelation

Combine different chelating atoms in one coordination unit to balance conductivity, stability and redox-site diversity.

Claimed effects: May combine metal-sulfur conductivity with metal-nitrogen stability and create new multi-electron storage pathways.

Controlling variables: choice of N, O or S chelating atoms · coordination-unit geometry · metal identity

Representative materials: Ni-DTA · Ni-DABDT · Cu-TAPT

Caveat: Mechanistic assignments remain contested where extra capacity is attributed to low-valence metals without clear evidence.

3 · CCPs as anode materials for metal-ion batteries · Fig. 6

Interfacial growth and membrane formation

Grow CCPs at liquid-liquid or water-solid interfaces to form crystalline films, membranes or aligned arrays for device integration.

Claimed effects: Can produce highly crystalline thin films and separators with controlled ion transport.

Controlling variables: phase interface · substrate identity · film thickness · array alignment

Representative materials: Ni-HITP/PP membranes · Cu-HHTP nanowire arrays

Caveat: The review notes that continuous crack-free thin membranes with large area and stability remain difficult.

1 · The chemical and structure characteristics of CCPs

Potential-window selection after mechanism assignment

Optimise cycling windows once chemical state and redox pathways are known to avoid destructive anion uptake or over-reduction.

Claimed effects: Can improve cycling stability by favouring less disruptive redox pathways.

Controlling variables: upper cutoff voltage · lower cutoff voltage · cation versus anion insertion · metal-valence stability

Representative materials: Cu-THQ nanosheets · Co-HAB · Ni-HAB

Caveat: Narrowing the window may trade capacity or energy density for durability.

3 · CCPs as cathode materials for metal-ion batteries · Fig. 8

Chemical-state control through synthesis conditions

Control oxygen, base, solvent, concentration, reactant addition order, temperature and time to slow or direct deprotonation, oxidation and coordination.

Claimed effects: Improves crystallinity and chemical-state precision, which the review treats as prerequisite for reliable mechanism assignment.

Controlling variables: oxygen or inert atmosphere · base source · reactant addition sequence · solvent and concentration · temperature and reaction time

Representative materials: HAB-based CCPs · Ni-BTA · Cu-HHTP

Caveat: The review stresses that small changes in conditions can produce different chemical states and sometimes by-products.

1 · The chemical and structure characteristics of CCPs · Fig. 2

Review claims

These are the review authors’ synthesis, not newly measured results.

Author InterpretationHigh supportStructure Property Link

Three-dimensional CCPs are rare because planar conjugated ligands and square-planar units tend to favour lower-dimensional frameworks, while many 3D CPs lose conjugation and conductivity.

Evidence basis: review_reasoning

Caveat: Cu-TAPT is presented as a recent proof-of-principle rather than a mature family.

2 · The chemical and structure characteristics of CCPs · Fig. 3

Author InterpretationHigh supportDefinition Scope

The review defines CCPs as a distinct subset of conductive MOF-like coordination polymers whose extended pi-d conjugation differentiates them from broader non-conjugated cMOFs.

Evidence basis: multi_reference

Caveat: The review itself notes that prior reviews sometimes grouped CCPs with other cMOFs.

1 · Introduction

Consensus SummaryHigh supportCaveat

Accurate chemical-state and structural assignment is a central bottleneck because synthesis can produce ambiguous valence states, poor crystallinity and divergent mechanisms.

Evidence basis: multi_reference

Caveat: Some structural information can be inferred by topology and DFT, but the review stresses atomic-level certainty is often missing.

1 · The chemical and structure characteristics of CCPs · Fig. 2

Consensus SummaryHigh supportTransport Mechanism

In-plane pi-d conjugation is presented as the electronic-transport basis for high intrinsic conductivity and fast charge transport in CCPs.

Evidence basis: multi_reference

Caveat: The review does not give a single universal conductivity value; transport is structure- and state-dependent.

1 · Introduction

DescriptiveHigh supportStructure Property Link

Cu-THQ is used to show that different chemical states of the same [Cu-O4] unit can produce different charge-storage mechanisms and cycling behaviour.

Evidence basis: multi_reference

Caveat: The review's interpretation relies on XPS and electrochemical evidence from cited primary studies.

3 · CCPs as cathode materials for metal-ion batteries · Fig. 8

Author InterpretationHigh supportStructure Property Link

The CuTABQ comparison is used as evidence that framework dimensionality and pore accommodation can improve rate capability and cycling stability even with similar composition.

Evidence basis: single_reference

Caveat: This is a specific comparison and should not be generalised without primary checks.

4 · CCPs as cathode materials for metal-ion batteries · Fig. 11

Author InterpretationMedium supportSynthesis Strategy

Heteroatom co-chelation is framed as a design strategy for combining conductivity, stability and multi-electron redox in CCP electrodes.

Evidence basis: single_reference

Caveat: The extra-capacity mechanism in some related systems remains underdetermined.

3 · CCPs as anode materials for metal-ion batteries · Fig. 6

Consensus SummaryMedium supportApplication Relevance

For lithium-sulfur batteries, CCPs are interpreted as multifunctional hosts that combine electron conduction, ion pathways and polar binding sites for polysulfide management.

Evidence basis: multi_reference

Caveat: The review also flags high-loading electrode architecture and membrane fabrication as unresolved.

6 · CCPs as hosts or separators for lithium-sulfur batteries · Fig. 18

Author InterpretationMedium supportApplication Relevance

The review argues that quasi-single-atom transition metal sites and tunable ligand electronics make CCPs useful oxygen electrocatalysts in metal-air systems.

Evidence basis: multi_reference

Caveat: Catalyst stability and precise active-site modelling remain open issues.

6 · CCPs as cathode catalysts for metal-air batteries

Author InterpretationMedium supportStructure Property Link

Changing metal nodes in otherwise related CCPs can switch whether metal-centred redox contributes to capacity and can also change stability.

Evidence basis: multi_reference

Caveat: The review sometimes calls for further investigation of specific metal-valence assignments.

2 · CCPs as anode materials for metal-ion batteries · Fig. 5

Consensus SummaryHigh supportApplication Relevance

CCPs are treated as attractive battery electrodes because non-innocent ligands and metal nodes can support multi-electron reactions with high theoretical capacities.

Evidence basis: multi_reference

Caveat: Practical capacity depends strongly on voltage window, active sites and mechanism.

2 · CCPs as electrode active materials for batteries · Table 1

DescriptiveHigh supportMeasurement Interpretation

The review presents Ni-BTA as a mechanistically clear 1D CCP example in which Na storage involves ligand C=N/C-N reduction plus low-voltage Ni2+/Ni+ redox.

Evidence basis: single_reference

Caveat: This is a review summary of one cited primary study and not a new measurement.

2 · CCPs as anode materials for metal-ion batteries · Fig. 5

Consensus SummaryHigh supportCaveat

P-type cathode reactions can raise operating voltage but large-anion insertion is often irreversible and can disrupt conjugation, causing volume expansion and poor cycling.

Evidence basis: multi_reference

Caveat: The review distinguishes this from lower-voltage n-type cation storage, which may be more cyclable but lower energy.

5 · CCPs as cathode materials for metal-ion batteries

DescriptiveMedium supportApplication Relevance

Co-TABQ is presented as an example of using semiconducting CCP photoresponse to lower Li-O2 battery overvoltage under illumination.

Evidence basis: single_reference

Caveat: This is a single example and should be treated as exploratory in a thesis chapter.

6 · CCPs as cathode catalysts for metal-air batteries · Fig. 19

Author InterpretationMedium supportTransport Mechanism

Tunable pores and pi-pi stacking spaces are interpreted as ion-transport pathways that can support fast diffusion and structural stability during cycling.

Evidence basis: review_reasoning

Caveat: The review later notes that compact 2D stacking can also restrict ion transport in supercapacitors.

1 · Introduction

Author InterpretationMedium supportMaterial Comparison

S-containing CCP linkers are presented as promising for high-rate batteries because they usually have superior electrical conductivity, but their mechanisms remain underexplored.

Evidence basis: multi_reference

Caveat: The review notes that extra capacity in Cu-BHT needs further investigation.

5 · CCPs as cathode materials for metal-ion batteries · Fig. 13

Author InterpretationHigh supportCaveat

The review repeatedly warns that reproducible, large-scale synthesis of uniform, crystalline CCP materials remains necessary before practical applications.

Evidence basis: review_reasoning

Caveat: This is a review-level outlook rather than a quantified manufacturability assessment.

7 · Conclusions and perspectives

Consensus SummaryHigh supportTransport Mechanism

For Ni-HITP-like supercapacitors, the review emphasises EDL charge storage governed by pore accommodation and fast electrolyte movement rather than bulk faradaic battery-like storage.

Evidence basis: multi_reference

Caveat: Other CCP supercapacitors in the review are explicitly pseudocapacitive rather than EDL-dominated.

5 · CCPs as electrode active materials for supercapacitors · Fig. 15

Consensus SummaryHigh supportTransport Mechanism

Pseudocapacitive CCPs can involve metal-ligand redox, dual-redox sites, cation intercalation and anion insertion, so their mechanism is electrolyte- and ion-dependent.

Evidence basis: multi_reference

Caveat: The review frames several of these as active research topics, especially nonporous dual-ion storage.

6 · CCPs as electrode active materials for supercapacitors · Fig. 16-Fig. 17

Secondary benchmarks

Every row remains visibly secondary and links to a primary dossier only where the mapping is verified.

MaterialPropertyReported valueContext and qualityPrimary evidenceReview source
Secondary2D-CuTABQReversible capacity after activation326.0 mAh/g after an activation processNa-ion battery, 1.0-3.8 V
Text · Exact Reported
research_07914 · CCPs as cathode materials for metal-ion batteries · Fig. 11
SecondaryCo-HABLow-rate Na-ion anode capacity291 mAh/g at 50 mA/gNa-ion battery, 0.5-3.0 V, low-rate capacity at 50 mA/g
Table · Exact Reported
research_000418 · Figures and tables · Table 1
SecondaryCo-TABQPhoto-involved Li-O2 overvoltage0.20 V under illumination compared with 1.68 V in the darkPhotoinvolved Li-O2 battery under visible light
Text · Exact Reported
No verified corpus mapping6 · CCPs as cathode catalysts for metal-air batteries · Fig. 19
SecondaryCu-TAPTReversible Na-ion cathode capacityapproximately 313.4 mAh/gSodium-ion battery cathode; six-electron transfer per Cu3TAPT unit in review interpretation
Text · Approximate
No verified corpus mapping4 · CCPs as cathode materials for metal-ion batteries · Fig. 12
SecondaryCu-THQLow-rate Li-ion cathode capacity387 mAh/g at 50 mA/gLi-ion battery, 1.2-4.0 V, low-rate capacity at 50 mA/g
Table · Exact Reported
No verified corpus mapping18 · Figures and tables · Table 1
SecondaryFe2(DHBQ)3Energy density693 Wh kg-1Li-ion cathode; review text links value to 2.43 V output voltage
Text · Exact Reported
research_04324 · CCPs as cathode materials for metal-ion batteries · Fig. 10
SecondaryNi2[CuPc(NH)8]Specific capacitance400 F g-1 at 0.5 A/g3 M KCl, -0.8 to 0.8 V; 90 percent retention after 5000 cycles at 10 A/g
Table · Exact Reported
No verified corpus mapping19 · Figures and tables · Table 2
SecondaryNi-BHTSpecific capacitance245 F g-1 at 3 mV/s1 M LiPF6/ACN, -1.70 to 0 V
Table · Exact Reported
No verified corpus mapping19 · Figures and tables · Table 2
SecondaryNi-BTALow-rate Na-ion anode capacity480 mAh/g at 100 mA/gNa-ion battery, 0.01-2.5 V, low-rate capacity at 100 mA/g
Table · Exact Reported
No verified corpus mapping18 · Figures and tables · Table 1
SecondaryNi-DTALow-rate Na-ion anode capacity481 mAh/g at 200 mA/gNa-ion battery, 0.01-2.8 V, low-rate capacity at 200 mA/g
Table · Exact Reported
No verified corpus mapping18 · Figures and tables · Table 1
SecondaryNi-HABSpecific capacitance420 F g-1 at 0.2 mV/s1 M KOH, -0.75 to -0.25 V; 90 percent retention over 12000 cycles at 10 A/g
Table · Exact Reported
No verified corpus mapping19 · Figures and tables · Table 2
SecondaryNi-HITPSpecific capacitance111 F g-1 at 0.05 A/g1 M TEABF4/ACN electrolyte, 0-1.00 V
Table · Exact Reported
No verified corpus mapping19 · Figures and tables · Table 2
SecondaryNi-TABQLow-rate Na-ion anode capacity454.2 mAh/g at 200 mA/gNa-ion battery, 0.2-3.0 V, low-rate capacity at 200 mA/g
Table · Exact Reported
No verified corpus mapping18 · Figures and tables · Table 1
SecondaryS@Ni-HHTP-CNTLithium-sulfur cathode specific capacity1302.9 mAh/g at 0.2C; 629.6 mAh/g at 1C after 300 cycles; sulfur loading 65.5 wt%Lithium-sulfur battery sulfur host, high sulfur content
Text · Exact Reported
No verified corpus mapping6 · CCPs as hosts or separators for lithium-sulfur batteries

Research gaps

Open questions are presented as review-author priorities, not conclusions from the primary database.

Three-dimensional CCPs

High

3D CCPs that retain planar conjugation and high conductivity are rarely reported.

Proposed direction: Design multi-chelating ligands and mixed coordination geometries that create vertical connectivity while preserving pi-d conjugation.

7 · Conclusions and perspectives

Electrocatalyst modelling and durability

Medium

The real active sites in CCP oxygen catalysts and their long-term stability are not yet adequately understood.

Proposed direction: Improve structural modelling and stabilise active sites through heteroatom doping or stable organic functional groups.

7 · Conclusions and perspectives

Chemical state and crystallinity

High

Ideal chemical states and atomically precise structures remain rare, leading to ambiguous valence states, poor crystallinity and uncertain mechanisms.

Proposed direction: Optimise reactant addition, oxygen/base control, concentration, temperature and advanced structural characterisation to produce high-crystallinity CCPs.

7 · Conclusions and perspectives

High-energy cathode mechanisms

High

CCP cathodes often rely on n-type organic-ligand reactions with limited working potential, while p-type anion insertion can damage structure.

Proposed direction: Tune ligand functional groups and metal valence chemistry to raise redox potentials while maintaining structural integrity during anion storage.

7 · Conclusions and perspectives

Lithium-sulfur host and separator fabrication

Medium

High-loading CCP sulfur hosts and large-area separator films require better spatial architectures, pore-size control and film manufacturing.

Proposed direction: Fabricate CCP electrodes with special spatial structures and develop uniform large-aspect-ratio films with functionalised pores.

7 · Conclusions and perspectives

Active-site attribution

High

The valence and coordination structure of metal ions during redox often remain insufficiently resolved.

Proposed direction: Use operando or ex situ spectroscopy and careful capacity-source analysis to distinguish ligand and metal contributions.

7 · Conclusions and perspectives

Supercapacitor transport

Medium

Ion transport in 2D CCPs is limited by 1D channels and compact pi-pi stacking, hindering fast charging.

Proposed direction: Develop porous 3D CCPs and electrolyte models that capture electrode-electrolyte interactions and ion transport in three dimensions.

7 · Conclusions and perspectives

Cited-study map

Mappings show which printed review references have a verified counterpart in the frozen primary corpus.

Show 40 cited-study records
ReferenceStudyRole and contextCorpus mapping
Ref. 32020Electrically conductive metal-organic frameworksdefinition_scope · transport_contextUsed by the review to position CCPs within the broader conductive MOF field and to compare S-linker conductivity expectations.Unmapped
Ref. 52021The chemical states of conjugated coordination polymerschemical_state · definition_scopeSupports the review's framing of State A-D chemical states and the need for accurate structural determination.Unmapped
Ref. 72022Rational design and synthesis of two-dimensional conjugated metal-organic polymers for electrocatalysis applicationselectrocatalysis_contextUsed as background for CCP electrocatalysis and metal-air catalyst potential.Unmapped
Ref. 142022Conductive metal-organic frameworks for supercapacitorssupercapacitor_context · transport_contextSupports the review's link between CCP charge transport and supercapacitor applications.Unmapped
Ref. 152021Conjugated coordination polymers as electrodes for rechargeable batteriesbattery_context · redox_mechanismProvides prior battery-electrode framing and the redox-state scheme reused in the review.research_0058
Ref. 162019A one-dimensional pi-d conjugated coordination polymer for sodium storage with catalytic activity in negishi couplingbattery_benchmark · mechanismAnchors the review's mechanistic account of 1D Ni-BTA sodium storage and Table 1 benchmark.Unmapped
Ref. 172023Framework dimensional control boosting charge storage in conjugated coordination polymersdimensionality · battery_benchmarkSupports the review's dimensionality-control discussion and CuTABQ benchmark.research_0791
Ref. 182021Heterochelation boosts sodium storage in pi-d conjugated coordination polymersheterochelation · battery_benchmarkKey cited study for N/S co-chelation design and the Ni-DTA benchmark.Unmapped
Ref. 192019A highly conductive conjugated coordination polymer for fast-charge sodium-ion batteries: Reconsidering its structuress_linker · battery_benchmarkSupports the review's S-linker section and Ni-TTO sodium cathode benchmark.Unmapped
Ref. 292018Robust and conductive two-dimensional metal-organic frameworks with exceptionally high volumetric and areal capacitancesupercapacitor_benchmark · pseudocapacitanceAnchors M-HAB supercapacitor comparison and Ni-HAB benchmark in Table 2.Unmapped
Ref. 302018Synthetic routes for a 2D semiconductive copper hexahydroxybenzene metal-organic frameworksynthesis_controlCited for synthesis-condition control and crystallinity in CCP formation.research_0792
Ref. 342018Large-area preparation of crack-free crystalline microporous conductive membrane to upgrade high energy lithium-sulfur batteriesmembrane · lithium_sulfurSupports interfacial membrane growth and LSB separator benchmark.Unmapped
Ref. 352022Unraveling the electrical and magnetic properties of layered conductive metal-organic framework with atomic precisionstructure_determinationCited as part of the review's discussion of atomic precision and structural uncertainty.Unmapped
Ref. 362020A redox-active 2D metal-organic framework for efficient lithium storage with extraordinary high capacitybattery_benchmark · chemical_stateSupports Cu-THQ mixed-state cathode mechanism and Table 1 benchmark.Unmapped
Ref. 422023Single crystals of a highly conductive three-dimensional conjugated coordination polymer3d_ccp · battery_benchmark · transport_benchmarkThe review's key proof-of-principle 3D CCP for conductivity, porosity and sodium cathode performance.Unmapped
Ref. 502021Successive storage of cations and anions by ligands of pi-d-conjugated coordination polymers enabling robust sodium-ion batteriesbattery_benchmark · redox_mechanismSupports the review's comparison of Cu-HHTP and Zn-HHTP mechanisms and cation/anion storage.Unmapped
Ref. 552018Stabilization of hexaaminobenzene in a 2D conductive metal-organic framework for high power sodium storagebattery_benchmark · metal_nodeSupports the review's Co-HAB anode discussion and Table 1 benchmark.research_0004
Ref. 562022Regulating the metal nodes of 1D conjugated coordination polymers for enhancing the performance of sodium-ion batteriesmetal_node · battery_mechanismUsed for the review's discussion of metal-node effects in isostructural DHBQ CCPs.Unmapped
Ref. 602020A two-dimensional metal-organic polymer enabled by robust nickel-nitrogen and hydrogen bonds for exceptional sodium-ion storagebackbone_redox · battery_benchmarkSupports the review's example of adding carbonyl active sites to the ligand backbone.Unmapped
Ref. 712018Multielectron-transfer-based rechargeable energy storage of two-dimensional coordination frameworks with non-innocent ligandsp_type · battery_benchmarkPioneering Ni-HAB cathode example used to introduce p-type and n-type windows.Unmapped
Ref. 722020Tailoring the electrochemical properties of two-dimensional bis(diimino)metal coordination frameworks by introducing Co/Ni heterometallic structuresmetal_node · p_typeUsed to discuss Co/Ni heterometallic tuning of Ni-HAB-type electrochemistry.Unmapped
Ref. 752020Ultrathin two-dimensional conjugated metal-organic framework single-crystalline nanosheets enabled by surfactant-assisted synthesischemical_state · battery_benchmarkSupports the review's Cu-THQ nanosheet potential-window and chemical-state discussion.research_0043
Ref. 782019Conductive 2D metal-organic framework for high-performance cathodes in aqueous rechargeable zinc batterieszinc_battery · battery_benchmarkUsed as an example of Cu-HHTP showing improved stability in aqueous zinc-ion batteries.research_0188
Ref. 852022A rationally designed iron-dihydroxybenzoquinone metal-organic framework as practical cathode material for rechargeable batteriesbattery_benchmark · energy_densitySupports the review's high-voltage Fe2(DHBQ)3 cathode benchmark.research_0432
Ref. 902020Highly conductive two-dimensional metal-organic frameworks for resilient lithium storage with superb rate capabilitys_linker · battery_benchmarkSupports S-containing Cu-BHT lithium cathode benchmark and discussion of ligand-dominated redox.research_0365
Ref. 1062017Conductive MOF electrodes for stable supercapacitors with high areal capacitancesupercapacitor_benchmark · edlPioneering Ni-HITP supercapacitor example and Table 2 benchmark.Unmapped
Ref. 1082020Molecular understanding of charge storage and charging dynamics in supercapacitors with MOF electrodes and ionic liquid electrolytessupercapacitor_mechanism · modellingSupports the pore-size and molecular-dynamics account of EDL storage in 2D CCP supercapacitors.Unmapped
Ref. 1182021The different roles of cobalt and manganese in metal-organic frameworks for supercapacitorsmetal_node · supercapacitor_contextSupports the review's broader statement that metal ions can alter electrical and electrochemical properties even when structures are similar.research_0788
Ref. 1192020Understanding the mechanism of high capacitance in nickel hexaaminobenzene-based conductive metal-organic frameworks in aqueous electrolytessupercapacitor_mechanism · pseudocapacitanceSupports pH-dependent surface pseudocapacitance interpretation for Ni-HAB.research_0809
Ref. 1202021Dual-redox-sites enable two-dimensional conjugated metal-organic frameworks with large pseudocapacitance and wide potential windowdual_redox · supercapacitor_benchmarkKey dual-redox-site supercapacitor study and Table 2 benchmark.Unmapped
Ref. 1222023Largely pseudocapacitive two-dimensional conjugated metal-organic framework anodes with lowest unoccupied molecular orbital localized in nickel-bis(dithiolene) linkagessupercapacitor_benchmark · s_linkerSupports Ni2[CuPcS8] pseudocapacitive supercapacitor benchmark and Ni-S4 mechanism.Unmapped
Ref. 1232021High-capacitance pseudocapacitors from Li+ ion intercalation in nonporous, electrically conductive 2D coordination polymerssupercapacitor_benchmark · ion_intercalationSupports nonporous Ni-BHT Li-ion intercalation pseudocapacitance mechanism and Table 2 benchmark.Unmapped
Ref. 1242021Dual-ion intercalation and high volumetric capacitance in a two-dimensional non-porous coordination polymersupercapacitor_mechanism · dual_ionSupports the review's discussion of cation and anion insertion in nonporous Ni-BHT.Unmapped
Ref. 1322020Solid 3D Li-S battery design via stacking 2D conductive microporous coordination polymers and amorphous Li-S layerslithium_sulfur · host_designCited for stacked CCP/Li-S design concepts and volumetric LSB context.Unmapped
Ref. 1342018Theoretical investigation of 2D conductive microporous coordination polymers as Li-S battery cathode with ultrahigh energy densitylithium_sulfur · modellingSupports theoretical LiPS adsorption and CCP scaffold discussion for LSBs.Unmapped
Ref. 1362019A highly conductive MOF of graphene analogue Ni3(HITP)2 as a sulfur host for high-performance lithium-sulfur batterieslithium_sulfur · benchmark_contextSupports the high-capacity S@Ni-HHTP-CNT sulfur host benchmark in the review.Unmapped
Ref. 1372023Synergizing spatial confinement and dual-metal catalysis to boost sulfur kinetics in lithium-sulfur batterieslithium_sulfur · catalysis_contextUsed for dual-metal catalytic sites and spatial confinement in CCP LSB hosts.Unmapped
Ref. 1452020Unpaired 3D electrons on atomically dispersed cobalt centres in coordination polymers regulate both oxygen reduction reaction (ORR) activity and selectivity for use in zinc-air batteriesmetal_air · electrocatalysisSupports the review's Co-HITP/Ni-HITP ORR pathway contrast and zinc-air battery discussion.Unmapped
Ref. 1462019Unveiling dual-linkage 3D hexaiminobenzene metal-organic frameworks towards long-lasting advanced reversible Zn-air batteriesmetal_air · electrocatalysisSupports metal-air discussion of well-defined Mn/Fe-HAB hollow sphere catalysts.Unmapped
Ref. 1472021Semiconducting metal-organic polymer nanosheets for a photoinvolved Li-O2 battery under visible lightphoto_battery · metal_airSupports the review's Co-TABQ photoinvolved Li-O2 mechanism and overvoltage benchmark.Unmapped