Anodes for Lithium-Ion Batteries Obtained by Sintering Silicon Nanopowder

被引：3
|
作者：
Astrova, E. V. [1 ]
Voronkov, V. B. [1 ]
Rumyantsev, A. M. [1 ]
Nashchekin, A. V. [1 ]
Parfen'eva, A. V. [1 ]
Lozhkina, D. A. [1 ]
机构：
[1] Russian Acad Sci, Ioffe Inst, St Petersburg 194021, Russia
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2019年 / 55卷 / 03期
关键词：
silicon anodes; lithium-ion batteries; sintering; silicon nanopowder; CAPACITY; SI;
D O I：
10.1134/S1023193519020010
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Isochronous annealing of preliminarily compacted silicon nanopowder specimens is investigated. The density, structure, and conductivity of the material are determined as a function of sintering temperature. The electrochemical characteristics of anodes, which were sintered in the temperature range of 1100 to 1200 degrees C, are studied using galvanostatic tests and cyclic voltammetry. It is found that the specimen, which was annealed at T = 1150 degrees C, shows the best results. This specimen has a density of 1.60 g/cm(3), a connected silicon framework, and an open-pore system.
引用
收藏
页码：184 / 193
页数：10
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