Primary studyCore evidenceThin Film Device

Ultrasensitive Detection of Electrolyte Leakage from Lithium-Ion Batteries by Ionically Conductive Metal-Organic Frameworks

Lu Y., Zhang S., Dai S. et al. · Matter · 2020 · 904-919

2materials
5samples
3synthesis routes
18measurements
51results
5claims and caveats

Evidence map

Open a family to keep every result attached to its sample, method and conditions.

Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: High

Using AC bias allows simultaneous Cp/Rp sensing with a stabilised baseline and better sensitivity than current mode for LIB electrolyte leakage.

Caveat: Bias-stress cancellation is argued from device behaviour rather than a separate quantitative bias-stress study.

905 · Introduction · Linked to 5 structured results

Application RelevanceSupport assessment: High

IC-MOF thin-film sensors detect ultralow DMC vapour and trace LIB electrolyte leakage within seconds.

Caveat: Some response-time wording differs between the Figure 3 text (7.5 s response, 9.5 s recovery for 50 ppb DMC) and conclusion (t90 less than 2 s for ultralow DMC/electrolyte).

915-916 · Conclusion · Linked to 4 structured results

Application RelevanceSupport assessment: High

In an actual punctured LIB test, the IC-MOF sensor signalled electrolyte leakage before the battery voltage showed a meaningful difference from a pristine battery.

Caveat: Demonstrated in a laboratory sealed-chamber puncture test, not in an operational battery pack.

912 · Real-Time Monitoring of Leakage from LIB by IC-MOF Sensors · Figure 5 · Linked to 3 structured results

Structure Property LinkSupport assessment: High

A 150 nm IC-MOF film gives the best sensing performance among the tested 100, 150, and 200 nm films.

Caveat: Quantitative thickness-response values in Supplementary Fig. 12 are figure-axis estimates, except the best-thickness statement is reported in text.

910 · Assessment of IC-MOF-Based Devices by Capacitance and Resistance Signals under AC Mode · Figure S12 · Linked to 3 structured results

Transport MechanismSupport assessment: High

Copper ions remaining/doped in IC-MOF interlayers act as ionic charge carriers and are critical for current, capacitance, and resistance sensing signals.

Caveat: Authors also note possible contributions from dipole interactions, adsorption-desorption, and open coordination sites.

914-915 · Sensing Mechanism · Figure 6C · Linked to 6 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
Cu-TCPP MOF thin film without free metal ionsNot specifiedCu coordinated within copper tetrakis(4-carboxyphenyl)porphyrin MOF nanosheets · copper tetrakis(4-carboxyphenyl)porphyrin (Cu-TCPP)2D · PristineControl Cu-MOF nanosheet thin film prepared by solvothermal synthesis and drop casting; synchrotron XRD profile shows a Cu-MOF thin-film out-of-plane reflection.913 · Sensing Mechanism · Figures S2F and S3B
ionically conductive MOF (IC-MOF) thin filmNot specifiedCu(II) coordinated to tetrakis(4-carboxyphenyl)porphyrin; additional/free Cu ions remain between MOF nanosheet layers as mobile ion carriers · 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin (H2TCPP)2D · PristinePorphyrin-based layered MOF nanosheet film with ordered layer stacking; PXRD indexed to (001)/(002) reflections and interlayer spacing of 7.123(5) Angstrom.906-907 · MOF Synthesis and Sensing Setup · Figure 1; Figures S2-S4

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 5 sample records
SampleForm and roleProcessing and geometrySource
Cu-TCPP MOF nanosheet thin-film control sensorresearch_0352__mat__mat_cu_tcpp_mofThin Film · Pristine Control · Pristine Frameworksolvothermal Cu-TCPP nanosheets dispersed in ethanol and drop-cast as a thin filmquartz sheet or silicon wafer pretreated by plasma for 10 min916-917 · Preparation of Cu-TCPP MOF Thin Films without Free Metal Ions · Figures S2F, S3B, and S17
IC-MOF thin film on quartz or silicon waferresearch_0352__mat__mat_ic_mofThin Film · Target Sample · Dopedfree-standing maroon film transferred from water surface, naturally dried, vacuum heated at 80 deg C for 2 hquartz sheet or silicon wafer pretreated by plasma for 10 min · about 150 nm for the main device films; 100, 150, and 200 nm variants tested907 · MOF Synthesis and Sensing Setup · Figures S3 and S4
IC-MOF chemicapacitor/chemiresistor sensor with gold electrodesresearch_0352__mat__mat_ic_mofElectrode · Target Sample · Dopedhorizontal interdigitated-electrode sensing device operated under current mode or AC capacitance/resistance modequartz surface with 40 nm gold electrodes on top of IC-MOF film · MOF film about 150 nm; Au electrodes 40 nm907 · MOF Synthesis and Sensing Setup · Figure 1B; Figure S1
ethanethiol-treated IC-MOF sensorresearch_0352__mat__mat_ic_mofElectrode · Model System · Guest LoadedIC-MOF sensor exposed to excessive ethanethiol for a few minutes to poison/free Cu ion sitesIC-MOF sensor device914 · Sensing Mechanism · Figures 6A, S18, and S19
ethanethiol-treated IC-MOF sensor after vacuum heatingresearch_0352__mat__mat_ic_mofElectrode · Model System · Guest Loadedethanethiol-poisoned IC-MOF sensor heated at 80 deg C under vacuum for about 2 hIC-MOF sensor device914 · Sensing Mechanism · Figures 6A, S18, and S19