期刊
CHEMISTRY LETTERS
卷 45, 期 10, 页码 1198-1200出版社
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.160592
关键词
Lithium-ion battery; Negative electrode; Ge and Si alloy
资金
- Japan Society for the Promotion of Science (JSPS) KAKENHI [24350094, 25620195, 15K21166]
- Grants-in-Aid for Scientific Research [15K21166, 25620195] Funding Source: KAKEN
A GexS1-x alloy electrode is useful for addressing the shortcomings of a Si negative electrode for lithium-ion batteries. To further improve the electrochemical performance of a GexS1-x negative electrode, a film-forming additive and the formation of a composite with LaSi2 were applied. A Ge0.1Si0.9 electrode exhibited better cyclability in the additive-containing electrolyte with a discharge capacity of 1240 mA h g(-1) at the 400th cycle. In addition, a Ge0.1Si0.9/LaSi2 composite electrode showed better cycle performance than a Ge0.1Si0.9 electrode.
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