Electrochemical Performance of LIB Anodes Based on Silicon Monoxide: The Effect of Disproportionation and Treatment in HF

被引：0

作者：

Grushina, A. A. ^{[1
,2
]}

Lozhkina, D. A. ^{[2
]}

Krasilin, A. A. ^{[2
]}

Rumyantsev, A. M. ^{[2
]}

Astrova, E. V. ^{[2
]}

机构：

[1] St Petersburg State Inst Technol Inst Tech Univ, St Petersburg, Russia

[2] Ioffe Inst, St Petersburg, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2023年 / 49卷 / SUPPL 1期

关键词：

composite SiO/C anodes; lithium-ion batteries; treatment in HF;

D O I：

10.1134/S1063785023900248

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Composite SiO/C anodes for lithium-ion batteries (LIB) obtained by carbonization of silicon monoxide with fluorocarbon were investigated. Preliminary modification of the initial silicon monoxide was carried out by disproportionation and subsequent treatment in hydrofluoric acid. The study of the elemental composition of modified SiO and the electrochemical performance of composite anodes made from it showed that the oxygen content in the oxide matrix played a decisive role in changing their behavior. Depletion of it with oxygen as a result of treatment in HF had a beneficial effect, leading to higher stability of the electrodes during cycling, an increase in their capacity, coulombic efficiency and rate capability.

引用

页码：S11 / S14

页数：4

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