Prelithiated Silicon Nanowires as an Anode for Lithium Ion Batteries

被引：515

作者：

Liu, Nian ^{[2
]}

Hu, Liangbing ^{[1
]}

McDowell, Matthew T. ^{[1
]}

Jackson, Ariel ^{[1
]}

Cui, Yi ^{[1
]}

机构：

[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

来源：

ACS NANO | 2011年 / 5卷 / 08期

基金：

美国国家科学基金会;

关键词：

lithium ion battery; silicon nanowires; prelithiation; lithium-sulfur battery; RECHARGEABLE BATTERIES; SULFUR CATHODE; HIGH-CAPACITY; PERFORMANCE; ELECTRODES; INSERTION; ENERGY; CELL;

D O I：

10.1021/nn2017167

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Silicon is one of the most promising anode materials for the next generation high energy lithium ion battery (LIB), while sulfur and some other, lithium-free materials have recently, shown high promise as cathode materials. To make a full battery out of them, either the cathode or the anode needs to be prelithiated. Here, we present a method for prelithiating a silicon nanowire (SiNW) anode by a facile self-discharge mechanism. Through a time dependence study, we found that 20 min of prelithiation loads similar to 50% of the full capacity Into the SiNWs. Scanning election microscopy (SEM) and transmission electron microscopy (TEM) studies show that the nanostructure of SiNWs is maintained after prelithiation. We constructed a full battery using our prelithiated SiNW anode with a sulfur cathode. Our work provides a protocol for pairing lithium-free electrodes to make the next-generation high-energy LIB.

引用

页码：6487 / 6493

页数：7

共 27 条

[1] ALL-SOLID LITHIUM ELECTRODES WITH MIXED-CONDUCTOR MATRIX [J].