Concentration measurements in lithium/polymer-electrolyte/lithium cells during cycling

被引:56
作者
Brissot, C
Rosso, M [1 ]
Chazalviel, JN
Lascaud, S
机构
[1] Ecole Polytech, Phys Mat Condensee Lab, CNRS, F-91128 Palaiseau, France
[2] DER, EDF, F-77250 Moret, France
关键词
lithium/polymer; electrolyte/lithium cells; concentration measurement; cycling;
D O I
10.1016/S0378-7753(00)00589-9
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
We report on in situ and ex situ concentration measurements in lithium/polymer-electrolyte/lithium cells during cycling. We have used three different methods which give complementary results, in good agreement with theoretical predictions and previous concentration measurements by Raman confocal microspectroscopy. Our methods allow to obtain concentration maps in the electrolyte, in particular, when dendrites are observed: from these measurements, we can correlate the onset of dendritic growth with local concentration gradients. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:212 / 218
页数:7
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