Microstructured silicon anodes for lithium-ion batteries

被引：19

作者：

Li, G. V. ^{[1
]}

Astrova, E. V. ^{[1
]}

Rumyantsev, A. M. ^{[1
]}

Voronkov, V. B. ^{[1
]}

Parfen'eva, A. V. ^{[1
]}

Tolmachev, V. A. ^{[1
]}

Kulova, T. L. ^{[2
]}

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

机构：

[1] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[2] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2015年 / 51卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

anodes of lithium-ion batteries; porous silicon; electrochemical etching; micro- and nanostructures; MACROPOROUS SILICON; NEGATIVE ELECTRODES;

D O I：

10.1134/S1023193515100080

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Scientific and methodical fundamentals are developed for the technology of manufacturing of microstructured Si anodes based on macroporous silicon. The main technological processes include the electrochemical etching of single-crystal silicon wafers that allows obtaining an ordered lattice of cylindrical macropores with a cavity between the porous layer and support, anisotropic shaping, formation of a copper contact, and separation of the silicon structure from the support. Microstructures are manufactured in the form of a grid, columns, and zigzags with thin monodispersed walls of different crystallographic orientation. The possibility of repeated use of the Si support for anodic treatment and the manufacturing of several anodic structures from a single plate Si wafer is shown. The performed electrochemical tests demonstrate that the anodes manufactured according to the developed technology sustain hundreds of charge-discharge cycles.

引用

页码：899 / 907

页数：9

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