CaveatSupport assessment: High
The authors identify calcination atmosphere as crucial for material formation and leave it for future work.
Caveat: No alternative atmosphere study is reported in the supplied documents.
10 · 4. Conclusion
Primary studyCore evidenceTransport Physics
Metal-organic framework-mediated synthesis of LiNi0.5Mn1.5O4: Tuning the Mn3+ content and electrochemical performance by organic ligands
Yin C., Bao Z., Tan H. et al. · Chemical Engineering Journal · 2019 · 408-419
12materials
18samples
18synthesis routes
61measurements
233results
6claims 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.
Phase AssignmentSupport assessment: High
All six LNMO products are assigned to disordered Fd-3m spinel LiNi0.5Mn1.5O4 rather than ordered P4332.
Caveat: Assignment relies on XRD/SAED/Raman evidence as reported; weak rock-salt impurity peaks are also present.
5-6 · 3. Results and discussion · Fig. 4; Fig. 5
Structure Property LinkSupport assessment: High
PTCDA-LNMO has the strongest overall electrochemical performance, with high 20C capacity, highest Li diffusion average, high tap density/pore volume and the lowest fitted charge-transfer resistance.
Caveat: PTA-LNMO has the highest 500-cycle retention value; the abstract and main rate paragraph disagree on PTCDA-LNMO 1C capacity.
9-10 · 3. Results and discussion · Fig. 8; Table 2; Table 3 · Linked to 18 structured results
Synthesis MechanismSupport assessment: Medium
An amorphous Li2CO3 coating may form from Li2O and CO2 during cooling after calcination and can enhance cyclic stability by inhibiting Mn dissolution.
Caveat: The paper states this as a possible generation route based on XPS/EDS/TEM/ICP observations rather than direct coating-thickness quantification.
7 · 3. Results and discussion · Fig. 6
Synthesis MechanismSupport assessment: High
Organic linker structure in the Ni-Mn-MOF precursor controls MOF morphology and thereby tailors the morphology and size of final LiNi0.5Mn1.5O4.
Caveat: The mechanism is inferred from comparative morphology and schematic formation analysis; no in situ growth experiment is reported in the main text.
3 · 3. Results and discussion · Figs. 1-2 · Linked to 5 structured results
Transport MechanismSupport assessment: High
Cycling performance is governed by impurity-phase concentration, surface Mn3+ concentration and surface crystal orientation because Mn3+ promotes Jahn-Teller strain, Mn dissolution and electrolyte decomposition.
Caveat: Mechanistic attribution is correlational across six samples.
9 · 3. Results and discussion · Fig. 8d; Table 1 · Linked to 18 structured results
Material identities
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| BCA-LNMO spinel cathode material | Li1.093Ni0.497Mn1.5O4Li-Ni-Mn-O spinel oxide, not a MOF; derived from Ni-Mn-MOF precursor · No retained organic linker in final oxide; precursor ligand was 3,3,4,4-biphenyltetracarboxylic acid (BCA) | 3D · DerivedDisordered spinel LiNi0.5Mn1.5O4, space group Fd-3m, with weak rock-salt impurity peaks reported for all samples. | 5 · 3. Results and discussion · Fig. 4; Table 1 |
| BCA-Ni-Mn-MOF precursor | Not specifiedMixed Ni/Mn acetate-derived nodes; Ni:Mn precursor molar ratio 15 mmol:45 mmol · 3,3,4,4-biphenyltetracarboxylic acid (BCA) | unknown · PristineNi-Mn metal-organic framework precursor; XRD and FTIR investigated in SI Figs. S1-S2 but detailed patterns are not in the text layer. | 2-3 · 2.1 Materials preparation / 3. Results and discussion · Fig. 1 |
| DTA-LNMO spinel cathode material | Li1.063Ni0.499Mn1.5O4Li-Ni-Mn-O spinel oxide, not a MOF; derived from Ni-Mn-MOF precursor · No retained organic linker in final oxide; precursor ligand was 2,5-dihydroxyterephthalic acid (DTA) | 3D · DerivedDisordered spinel LiNi0.5Mn1.5O4, space group Fd-3m, with weak rock-salt impurity peaks reported for all samples. | 5 · 3. Results and discussion · Fig. 4; Table 1 |
| DTA-Ni-Mn-MOF precursor | Not specifiedMixed Ni/Mn acetate-derived nodes; Ni:Mn precursor molar ratio 15 mmol:45 mmol · 2,5-dihydroxyterephthalic acid (DTA) | unknown · PristineNi-Mn metal-organic framework precursor; XRD and FTIR investigated in SI Figs. S1-S2 but detailed patterns are not in the text layer. | 2-3 · 2.1 Materials preparation / 3. Results and discussion · Fig. 1 |
| OBA-LNMO spinel cathode material | Li1.053Ni0.498Mn1.5O4Li-Ni-Mn-O spinel oxide, not a MOF; derived from Ni-Mn-MOF precursor · No retained organic linker in final oxide; precursor ligand was 4,4-oxybisbenzoic acid (OBA) | 3D · DerivedDisordered spinel LiNi0.5Mn1.5O4, space group Fd-3m, with weak rock-salt impurity peaks reported for all samples. | 5 · 3. Results and discussion · Fig. 4; Table 1 |
| OBA-Ni-Mn-MOF precursor | Not specifiedMixed Ni/Mn acetate-derived nodes; Ni:Mn precursor molar ratio 15 mmol:45 mmol · 4,4-oxybisbenzoic acid (OBA) | unknown · PristineNi-Mn metal-organic framework precursor; XRD and FTIR investigated in SI Figs. S1-S2 but detailed patterns are not in the text layer. | 2-3 · 2.1 Materials preparation / 3. Results and discussion · Fig. 1 |
| PTA-LNMO spinel cathode material | Li1.010Ni0.496Mn1.5O4Li-Ni-Mn-O spinel oxide, not a MOF; derived from Ni-Mn-MOF precursor · No retained organic linker in final oxide; precursor ligand was p-phthalic acid / terephthalic acid (PTA) | 3D · DerivedDisordered spinel LiNi0.5Mn1.5O4, space group Fd-3m, with weak rock-salt impurity peaks reported for all samples. | 5 · 3. Results and discussion · Fig. 4; Table 1 |
| PTA-Ni-Mn-MOF precursor | Not specifiedMixed Ni/Mn acetate-derived nodes; Ni:Mn precursor molar ratio 15 mmol:45 mmol · p-phthalic acid / terephthalic acid (PTA) | unknown · PristineNi-Mn metal-organic framework precursor; XRD and FTIR investigated in SI Figs. S1-S2 but detailed patterns are not in the text layer. | 2-3 · 2.1 Materials preparation / 3. Results and discussion · Fig. 1 |
| PTCDA-LNMO spinel cathode material | Li1.074Ni0.499Mn1.5O4Li-Ni-Mn-O spinel oxide, not a MOF; derived from Ni-Mn-MOF precursor · No retained organic linker in final oxide; precursor ligand was 3,4,9,10-perylenetetracarboxylic acid (PTCDA) | 3D · DerivedDisordered spinel LiNi0.5Mn1.5O4, space group Fd-3m, with weak rock-salt impurity peaks reported for all samples. | 5 · 3. Results and discussion · Fig. 4; Table 1 |
| PTCDA-Ni-Mn-MOF precursor | Not specifiedMixed Ni/Mn acetate-derived nodes; Ni:Mn precursor molar ratio 15 mmol:45 mmol · 3,4,9,10-perylenetetracarboxylic acid (PTCDA) | unknown · PristineNi-Mn metal-organic framework precursor; XRD and FTIR investigated in SI Figs. S1-S2 but detailed patterns are not in the text layer. | 2-3 · 2.1 Materials preparation / 3. Results and discussion · Fig. 1 |
| TCA-LNMO spinel cathode material | Li1.082Ni0.498Mn1.5O4Li-Ni-Mn-O spinel oxide, not a MOF; derived from Ni-Mn-MOF precursor · No retained organic linker in final oxide; precursor ligand was trimeric acid (TCA) | 3D · DerivedDisordered spinel LiNi0.5Mn1.5O4, space group Fd-3m, with weak rock-salt impurity peaks reported for all samples. | 5 · 3. Results and discussion · Fig. 4; Table 1 |
| TCA-Ni-Mn-MOF precursor | Not specifiedMixed Ni/Mn acetate-derived nodes; Ni:Mn precursor molar ratio 15 mmol:45 mmol · trimeric acid (TCA) | unknown · PristineNi-Mn metal-organic framework precursor; XRD and FTIR investigated in SI Figs. S1-S2 but detailed patterns are not in the text layer. | 2-3 · 2.1 Materials preparation / 3. Results and discussion · Fig. 1 |
Sample register
Sample form, processing state and composition status define the context for measurements.
Show 18 sample records
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| BCA-LNMO composite cathode electroderesearch_0428__mat__bca_lnmo | Electrode · Composite Sample · Composite | LNMO/PVDF/acetylene black slurry in NMP coated on aluminium foil, dried at 80 C, rolled into 14 mm disks with about 5 mg active loading.aluminum foil | 2 · 2.3 Electrochemical cycling measurement |
| BCA-LNMO powderresearch_0428__mat__bca_lnmo | Powder · Target Sample · Mixed Metal | MOF/lithium acetate mixture prefired at 400 C for 5 h and calcined at 800 C for 8 h in air. | 2 · 2.1 Materials preparation |
| BCA-Ni-Mn-MOFsresearch_0428__mat__bca_ni_mn_mof | Powder · Target Sample · Mixed Metal | Filtered, washed with distilled water and absolute ethanol several times, then dried at 120 C for 12 h. | 2 · 2.1 Materials preparation · Fig. 1 |
| DTA-LNMO composite cathode electroderesearch_0428__mat__dta_lnmo | Electrode · Composite Sample · Composite | LNMO/PVDF/acetylene black slurry in NMP coated on aluminium foil, dried at 80 C, rolled into 14 mm disks with about 5 mg active loading.aluminum foil | 2 · 2.3 Electrochemical cycling measurement |
| DTA-LNMO powderresearch_0428__mat__dta_lnmo | Powder · Target Sample · Mixed Metal | MOF/lithium acetate mixture prefired at 400 C for 5 h and calcined at 800 C for 8 h in air. | 2 · 2.1 Materials preparation |
| DTA-Ni-Mn-MOFsresearch_0428__mat__dta_ni_mn_mof | Powder · Target Sample · Mixed Metal | Filtered, washed with distilled water and absolute ethanol several times, then dried at 120 C for 12 h. | 2 · 2.1 Materials preparation · Fig. 1 |
| OBA-LNMO composite cathode electroderesearch_0428__mat__oba_lnmo | Electrode · Composite Sample · Composite | LNMO/PVDF/acetylene black slurry in NMP coated on aluminium foil, dried at 80 C, rolled into 14 mm disks with about 5 mg active loading.aluminum foil | 2 · 2.3 Electrochemical cycling measurement |
| OBA-LNMO powderresearch_0428__mat__oba_lnmo | Powder · Target Sample · Mixed Metal | MOF/lithium acetate mixture prefired at 400 C for 5 h and calcined at 800 C for 8 h in air. | 2 · 2.1 Materials preparation |
| OBA-Ni-Mn-MOFsresearch_0428__mat__oba_ni_mn_mof | Powder · Target Sample · Mixed Metal | Filtered, washed with distilled water and absolute ethanol several times, then dried at 120 C for 12 h. | 2 · 2.1 Materials preparation · Fig. 1 |
| PTA-LNMO composite cathode electroderesearch_0428__mat__pta_lnmo | Electrode · Composite Sample · Composite | LNMO/PVDF/acetylene black slurry in NMP coated on aluminium foil, dried at 80 C, rolled into 14 mm disks with about 5 mg active loading.aluminum foil | 2 · 2.3 Electrochemical cycling measurement |
| PTA-LNMO powderresearch_0428__mat__pta_lnmo | Powder · Target Sample · Mixed Metal | MOF/lithium acetate mixture prefired at 400 C for 5 h and calcined at 800 C for 8 h in air. | 2 · 2.1 Materials preparation |
| PTA-Ni-Mn-MOFsresearch_0428__mat__pta_ni_mn_mof | Powder · Target Sample · Mixed Metal | Filtered, washed with distilled water and absolute ethanol several times, then dried at 120 C for 12 h. | 2 · 2.1 Materials preparation · Fig. 1 |
| PTCDA-LNMO composite cathode electroderesearch_0428__mat__ptcda_lnmo | Electrode · Composite Sample · Composite | LNMO/PVDF/acetylene black slurry in NMP coated on aluminium foil, dried at 80 C, rolled into 14 mm disks with about 5 mg active loading.aluminum foil | 2 · 2.3 Electrochemical cycling measurement |
| PTCDA-LNMO powderresearch_0428__mat__ptcda_lnmo | Powder · Target Sample · Mixed Metal | MOF/lithium acetate mixture prefired at 400 C for 5 h and calcined at 800 C for 8 h in air. | 2 · 2.1 Materials preparation |
| PTCDA-Ni-Mn-MOFsresearch_0428__mat__ptcda_ni_mn_mof | Powder · Target Sample · Mixed Metal | Filtered, washed with distilled water and absolute ethanol several times, then dried at 120 C for 12 h. | 2 · 2.1 Materials preparation · Fig. 1 |
| TCA-LNMO composite cathode electroderesearch_0428__mat__tca_lnmo | Electrode · Composite Sample · Composite | LNMO/PVDF/acetylene black slurry in NMP coated on aluminium foil, dried at 80 C, rolled into 14 mm disks with about 5 mg active loading.aluminum foil | 2 · 2.3 Electrochemical cycling measurement |
| TCA-LNMO powderresearch_0428__mat__tca_lnmo | Powder · Target Sample · Mixed Metal | MOF/lithium acetate mixture prefired at 400 C for 5 h and calcined at 800 C for 8 h in air. | 2 · 2.1 Materials preparation |
| TCA-Ni-Mn-MOFsresearch_0428__mat__tca_ni_mn_mof | Powder · Target Sample · Mixed Metal | Filtered, washed with distilled water and absolute ethanol several times, then dried at 120 C for 12 h. | 2 · 2.1 Materials preparation · Fig. 1 |