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| Home > Publications database > Understanding Degradation and Enhancing Cycling Stabilityfor High-Voltage LiCoO2-Based Li-Metal Batteries > print |
| 001 | 1037569 | ||
| 005 | 20250610131453.0 | ||
| 024 | 7 | _ | |a 10.1002/aenm.202404028 |2 doi |
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| 024 | 7 | _ | |a 1614-6840 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2025-00754 |
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| 100 | 1 | _ | |a Wu |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Understanding Degradation and Enhancing Cycling Stabilityfor High-Voltage LiCoO2-Based Li-Metal Batteries |
| 260 | _ | _ | |a Weinheim |c 2025 |b Wiley-VCH |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Improving the energy density of Lithium (Li)-ion batteries (LIBs) is vital inmeeting the growing demand for high-performance energy storage andconversion systems. Developing high-voltage LIBs using high-capacity andhigh-voltage cathode materials is promising for enhancing energy density.However, conventional cathode and electrolyte materials face seriousdecomposition and structural degradation at high operating voltages. Herein,a dual-salts electrolyte of lithium bis(fluorosulfonyl)imide and lithiumbis(trifluoromethanesulfonyl)imide(LiFSI-LiTFSI) is developed to improve thecycling stability of high-voltage lithium cobalt oxide (LiCoO2, LCO)||Libatteries. Operando X-ray diffraction analysis experiments are carried out tocharacterize the structural stability of cathode materials, suggesting a severeirreversible phase transformation at high voltage levels. Aging simulations,combined with experimental studies, suggest that a fast loss of activematerials is mainly responsible for the capacity loss at high voltages.Carbon-coated LCO cathodes are synthesized to mitigate cycling degradation.The designed LCO||Li cells exhibit a high-capacity retention of over 85% after400 cycles at 4 .7V. The present work provides a novel insight intounderstanding the degradation and enhancing the stability of high-voltageLCO-based Li-metal batteries, thus facilitating their practical applications. |
| 536 | _ | _ | |a 1223 - Batteries in Application (POF4-122) |0 G:(DE-HGF)POF4-1223 |c POF4-122 |f POF IV |x 0 |
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| 700 | 1 | _ | |a Tsai, Chih-Long |0 P:(DE-Juel1)156244 |b 4 |
| 700 | 1 | _ | |a Qin, Zhizhen |0 P:(DE-Juel1)190219 |b 5 |
| 700 | 1 | _ | |a Danilov, Dmitri |0 P:(DE-Juel1)173719 |b 6 |
| 700 | 1 | _ | |a Zhou, Lei |0 P:(DE-Juel1)173933 |b 7 |
| 700 | 1 | _ | |a Daniel, Davis Thomas |0 P:(DE-Juel1)185897 |b 8 |
| 700 | 1 | _ | |a Schaps, Kristian |0 P:(DE-Juel1)195868 |b 9 |
| 700 | 1 | _ | |a Ahmed, Jehad |0 P:(DE-Juel1)201235 |b 10 |
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| 700 | 1 | _ | |a Tempel, Hermann |0 P:(DE-Juel1)161208 |b 13 |
| 700 | 1 | _ | |a Granwehr, Josef |0 P:(DE-Juel1)162401 |b 14 |
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| 700 | 1 | _ | |a Notten, Peter H. L. |0 P:(DE-Juel1)165918 |b 18 |e Corresponding author |
| 773 | _ | _ | |a 10.1002/aenm.202404028 |g p. 2404028 |0 PERI:(DE-600)2594556-7 |n 7 |p 2404028 |t Advanced energy materials |v 15 |y 2025 |x 1614-6832 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/1037569/files/Advanced%20Energy%20Materials%20-%202024%20-%20Wu%20-%20Understanding%20Degradation%20and%20Enhancing%20Cycling%20Stability%20for%20High%E2%80%90Voltage.pdf |y OpenAccess |
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