Enhanced electrochemical properties of Li secondary batteries using polypyrrole/LiMn2O4 composite cathodes

被引：0

作者：

Kim, JO ^{[1
]}

Hwang, YW

Kim, YT

Song, K

Cho, BW

Rhee, HW

机构：

[1] Sogang Univ, Dept Chem, Seoul 121742, South Korea

[2] KIST, Battery & Fuel Cell Res Ctr, Seoul 136791, South Korea

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2001年 / 371卷

关键词：

LiMn2O4; polypyrrole; composite; cathode; Li battery;

D O I：

10.1080/10587250108024753

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polypyrrole(PPy)/LiMn2O4 composites were prepared by chemical oxidation of pyrrole onto LiMn2O4 with dodecylbenzene sulfonate as a dopant. The polymerization occurred mainly on the surface of LiMn2O4 to yield the entirely coated LiMn2O4 particles. The capacity of the cell reached the maximum of 124 mAh/g at 4.1 wt% of PPy in the active material. The composite cell showed enhanced charge-discharge properties compared with a pure LiMn2O4 cell. The PPy may enhance the electron exchange ability and stabilize the structure of LiMn2O4.

引用

页码：329 / 332

页数：4