电池2012，Vol.42Issue(4)：207-209,3.
分散剂在正极材料磷酸铁锂中的应用
Application of dispersants in cathode material lithium iron phosphate
张胜利 1李小岗 1宋延华 1王亚萍1
作者信息
- 1. 郑州轻工业学院材料与化学工程学院,河南郑州 450002
- 折叠
摘要
Abstract
Sodium dodecyl sulfate (SDS) and polyethylene glycol (PEG) were used as dispersant in the water paste technology of Li-ion battery cathode. Their effects on the performance of lithium iron phosphate (LiFePO4) were studied by the tests of AC impedance, cyclic voltammetry and charge-discharge. When the content of dispersant SDS was 0.6% , the specific capacity of battery was improved, the cycle performance was stable. After 20 cycles with different rates, the specific capacity of battery was 87.82 mAh/g, the capacity retention rate reached to 63.3% . When the content of dispersant PEG was 0.4%, after 20 cycles with different rates, the specific capacity of battery decreased from 143.61 mAh/g of 0.20 C to 107.14 mAh/g of 2.00 C, the capacity retention rate was 74.6%, the cycle stability and large current performance were fine.关键词
磷酸铁锂(LiFeP04)/分散剂/十二烷基磺酸钠(SDS)/聚乙二醇(PEG)Key words
lithium iron phosphate(LiFePO4)/dispersant/sodium dodecyl sulfonate(SDS)/polyethylene glycol(PEG)分类
信息技术与安全科学引用本文复制引用
张胜利,李小岗,宋延华,王亚萍..分散剂在正极材料磷酸铁锂中的应用[J].电池,2012,42(4):207-209,3.
