期刊
ELECTROCHEMICAL AND SOLID STATE LETTERS
卷 11, 期 10, 页码 A175-A178出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.2966286
关键词
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资金
- Ministry of Knowledge and Economy (MKE)
- Regional Innovation Center for Nano Particles at Kyungwon University
Aqueous-based LiFePO4 particulates were investigated with respect to their use in fabrication of lithium-ion battery cathode as a function of degree of substitution (DS) on carboxymethyl cellulose (CMC). The dispersion properties of LiFePO4 particulates were characterized using electroacoustic measurements, rheology, and microstructural observations at two different DS values on CMC. It was found that the LiFePO4 suspensions with lower DS had better long-term dispersing efficiency and more compact microstructure than those with higher DS. Furthermore, the electrodes with lower DS (141 mAh) exhibited a better electrochemical cycling performance than those with higher DS (134 mAh) after the same number of cycles. (C) 2008 The Electrochemical Society.
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