Lithium Titanate Aerogel for Advanced Lithium-ion Batteries

被引：24
|
作者：
Maloney, Ryan P. [1 ]
Kim, Hyun Joong [1 ]
Sakamoto, Jeffrey S. [1 ]
机构：
[1] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA
来源：
ACS APPLIED MATERIALS & INTERFACES | 2012年 / 4卷 / 05期
基金：
美国国家科学基金会;
关键词：
aerogel; lithium titanate; lithium-ion batteries; sol-gel; SOL-GEL METHOD; LI4TI5O12 ANODE MATERIAL; OXIDE AEROGELS; ELECTROCHEMICAL PROPERTIES; NANOCRYSTALLINE LI4TI5O12; SPINEL;
D O I：
10.1021/am3002742
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This work details the synthesis and characterization of a novel lithium titanate aerogel as an anode material for lithium ion batteries. Excessive loss of lithium during supercritical drying can be overcome by increasing the lithium precursor concentration during synthesis. Chronopotentiometry shows the aerogel to have a capacity about 80 % of theoretical at a symmetric C/3 rate, which is comparable to a commercial product. Cyclic voltammetry reveals a batt-cap behavior for the high-surface area aerogel, implying the potential for improved rate capability if electrical conductivity can be maintained.
引用
收藏
页码：2318 / 2321
页数：4
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