Enhanced high-temperature electrochemical properties of in situ carbon-coated truncated octahedral LiMn2O4 cathodes

Truncated octahedral spinel LiMn2O4 was homogenously coated by amorphous carbon layer via chemical vapor deposition (CVD) using acetylene gas (C2H2) as carbon source to ease Mn dissolution to improve high-temperature performance, delivering a capacity retention of 92.9% after 1000 cycles at 5C at 50...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2023-10, Vol.59 (87), p.13050-13053
Main Authors: He, Jiayi, Ren, Yan, Zhuang, Shuxin, Jiang, Shengyu, Pan, Xiaoxiao, Sun, Gaoxing, Zhu, Bin, Wen, Yanfen, Li, Xiaodan
Format: Article
Language:English
Subjects:
Acetylene
Carbon
Chemical vapor deposition
Electrochemical analysis
Lithium manganese oxides
Thermal stability
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Summary:Truncated octahedral spinel LiMn2O4 was homogenously coated by amorphous carbon layer via chemical vapor deposition (CVD) using acetylene gas (C2H2) as carbon source to ease Mn dissolution to improve high-temperature performance, delivering a capacity retention of 92.9% after 1000 cycles at 5C at 50 °C.
ISSN:1359-7345
1364-548X
DOI:10.1039/d3cc04119k