Over-lithiated NCM through Li5FeO4 for high energy silicon-based lithium-ion batteries.
Chem Commun (Camb)
; 60(51): 6564-6567, 2024 Jun 20.
Article
em En
| MEDLINE
| ID: mdl-38845564
ABSTRACT
Si/C composite material is a promising anode material for next-generation lithium-ion batteries due to its high capacity. However, it also exhibits significant initial capacity loss in a full cell due to the unstable SEI. To compensate for the loss of Li inventory, a pre-lithiation reagent, Li5FeO4 (LFO), is incorporated into the LiNi0.85Co0.12Mn0.03O2 (NCM85E) cathode for electrochemical evaluation. The results show that with the addition of LFO, the initial discharge capacity of SiC950/NCM85E full cells can increase from 151.0 mA h g-1 to 193.4 mA h g-1 by 28.1% with a high cathode loading up to about 20 mg cm-2. After 200 cycles, the specific capacity also increased by 25.1%.
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MEDLINE
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Ano de publicação:
2024
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Article