Stabilization of LiCoO2 Cathodes in High Voltage Lithium Metal Batteries Through 2-(Trifluoromethyl)Benzamide (2-TFMBA) Electrolyte Additives
© 2024 Wiley-VCH GmbH..
Increasing the charging cutoff voltage of LiCoO2 to 4.6 V is significant for enhancing battery density. However, the practical application of Li‖LiCoO2 batteries with a 4.6 V cutoff voltage faces significant impediments due to the detrimental changes under high voltage. This study presents a novel bifunctional electrolyte additive, 2-(trifluoromethyl)benzamide (2-TFMBA), which is employed to establish a stable and dense cathode-electrolyte interface (CEI). Characterization results reveal that an optimized CEI is achieved through the synergistic effects of the amide groups and trifluoromethyl groups within 2-TFMBA. The resulting CEI not only enhances the structural stability of LiCoO2 but also serves as a high-speed lithium-ion conduction channel, which expedites the insertion and extraction of lithium ions. The Li‖LiCoO2 batteries with 0.5 wt% 2-TFMBA achieves an 84.7% capacity retention rate after enduring 300 cycles at a current rate of 1 C, under a cut-off voltage of 4.6 V. This study provides valuable strategic insights into the stabilization of cathode materials in high-voltage batteries.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2024 |
|---|---|
| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
|---|---|
| Enthalten in: |
Small (Weinheim an der Bergstrasse, Germany) - (2024) vom: 20. Feb., Seite e2400087 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Li, Jinyang [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Cathode electrolyte interface |
|---|
| Anmerkungen: |
Date Revised 20.02.2024 published: Print-Electronic Citation Status Publisher |
|---|
| doi: |
10.1002/smll.202400087 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM368673324 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM368673324 | ||
| 003 | DE-627 | ||
| 005 | 20240222092212.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 240222s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1002/smll.202400087 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1301.xml |
| 035 | |a (DE-627)NLM368673324 | ||
| 035 | |a (NLM)38377283 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Li, Jinyang |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Stabilization of LiCoO2 Cathodes in High Voltage Lithium Metal Batteries Through 2-(Trifluoromethyl)Benzamide (2-TFMBA) Electrolyte Additives |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Revised 20.02.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status Publisher | ||
| 520 | |a © 2024 Wiley-VCH GmbH. | ||
| 520 | |a Increasing the charging cutoff voltage of LiCoO2 to 4.6 V is significant for enhancing battery density. However, the practical application of Li‖LiCoO2 batteries with a 4.6 V cutoff voltage faces significant impediments due to the detrimental changes under high voltage. This study presents a novel bifunctional electrolyte additive, 2-(trifluoromethyl)benzamide (2-TFMBA), which is employed to establish a stable and dense cathode-electrolyte interface (CEI). Characterization results reveal that an optimized CEI is achieved through the synergistic effects of the amide groups and trifluoromethyl groups within 2-TFMBA. The resulting CEI not only enhances the structural stability of LiCoO2 but also serves as a high-speed lithium-ion conduction channel, which expedites the insertion and extraction of lithium ions. The Li‖LiCoO2 batteries with 0.5 wt% 2-TFMBA achieves an 84.7% capacity retention rate after enduring 300 cycles at a current rate of 1 C, under a cut-off voltage of 4.6 V. This study provides valuable strategic insights into the stabilization of cathode materials in high-voltage batteries | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Li metal batteries | |
| 650 | 4 | |a LiCoO2 | |
| 650 | 4 | |a cathode electrolyte interface | |
| 650 | 4 | |a electrolyte additives | |
| 650 | 4 | |a high voltage batteries | |
| 700 | 1 | |a Wang, Jiajun |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, He |e verfasserin |4 aut | |
| 700 | 1 | |a Gao, Meng |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xingkai |e verfasserin |4 aut | |
| 700 | 1 | |a Dong, Qiujiang |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Wanxing |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Shiyu |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Hao |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Xiaopeng |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Wenbin |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Small (Weinheim an der Bergstrasse, Germany) |d 2005 |g (2024) vom: 20. Feb., Seite e2400087 |w (DE-627)NLM167400452 |x 1613-6829 |7 nnns |
| 773 | 1 | 8 | |g year:2024 |g day:20 |g month:02 |g pages:e2400087 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1002/smll.202400087 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |j 2024 |b 20 |c 02 |h e2400087 | ||