LiFePO4/gel/natural graphite cells for the BATT program

被引：64

作者：

Striebel, K ^{[1
]}

Guerfi, A

Shim, J

Armand, M

Gauthier, M

Zaghib, K

机构：

[1] Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

[2] Inst Rech Hydro Quebec, Varennes, PQ J3X 1S1, Canada

[3] Univ Montreal, Dept Chim, CNRS, Joint Int Lab,UdM,UMR 2289, Montreal, PQ H3C 3J7, Canada

来源：

JOURNAL OF POWER SOURCES | 2003年 / 119卷

关键词：

LiFePO4/gel/natural graphite cells; BATT program; calendar life test;

D O I：

10.1016/S0378-7753(03)00295-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

LiFePO4/gel/natural graphite (NG) cells have been prepared and cycled under a fixed protocol for cycle and calendar life determination. Cell compression of 68 kPa was found to represent an optimal balance between cell impedance and the first cycle losses on the individual electrodes with the gel electrolyte. Cells with a Li anode showed capacities of 160 and 78 mAh/g LiFePO4 for C/25 and 2C discharge rates, respectively. Rapid capacity and power fade were observed in the LiFePO4/gel/NG cells during cycling and calendar life studies. Diagnostic evaluations point to the consumption of cycleable Li though a side reaction as the reason for performance fade with minimal degradation of the individual electrodes. Published by Elsevier Science B.V.

引用

页码：951 / 954

页数：4