A Critical Size of Silicon Nano-Anodes for Lithium Rechargeable Batteries

被引：903

作者：

Kim, Hyejung ^{[1
,2
]}

Seo, Minho ^{[1
,2
]}

Park, Mi-Hee ^{[1
,2
]}

Cho, Jaephil ^{[1
,2
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Sch Energy Engn, Ulsan 689798, South Korea

[2] Ulsan Natl Inst Sci & Technol, Converging Res Ctr Innovat Battery Technol, Ulsan 689798, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 12期

关键词：

batteries; carbon; electrochemistry; lithium; silicon; STORAGE; PHOTOLUMINESCENCE; NANOPARTICLES; ELECTRODE;

D O I：

10.1002/anie.200906287

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Well-dispersed Si nanocrystals with sizes of approximately 5, 10, and 20 nm were prepared in reverse micelles at high pressure and 380°C and investigated as anode materials for lithium batteries. The 10 nm sized nanocrystals show a first charge capacity y of 3380 mAhg-1 and the highest capacity retention of 81 % after 40 cycles, which can be increased to 96% by carbon coating (see picture). Chemical Equation Presented". © 2010 Wiley-VCH Verlag GmbH & Co. KGaA."

引用

页码：2146 / 2149

页数：4