Raman study of structural stability of LiCoPO4 cathodes in LiPF6 containing electrolytes

被引：44
作者：
Sharabi, R. [1 ]
Markevich, E. [1 ]
Borgel, V. [1 ]
Salitra, G. [1 ]
Gershinsky, G. [1 ]
Aurbach, D. [1 ]
Semrau, G. [2 ]
Schmidt, M. A. [2 ]
Schall, N. [3 ]
Stinner, C. [3 ]
机构：
[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
[2] Merck KGaA, D-64293 Darmstadt, Germany
[3] Sud Chem AG, D-85368 Moosburg, Germany
来源：
JOURNAL OF POWER SOURCES | 2012年 / 203卷
关键词：
Lithium-cobalt phosphate; Olivines; Raman spectroscopy; Lithium batteries; Structural degradation; DISCHARGE CAPACITY; LITHIUM BATTERIES; PERFORMANCE; CARBON; CONDUCTIVITY; ELECTRODES; SCATTERING; GRAPHITE; OLIVINES;
D O I：
10.1016/j.jpowsour.2011.12.018
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：
Micro-probe Raman spectroscopy investigation of LiCoPO4 composite electrodes performed after prolonged cycling in LiPF6 EC/DMC electrolyte solution revealed total structural degradation of the olivine structure of the electrodes. The electrodes cycled in the identical conditions but in the presence of the HF-scavenging glassy fiber (GF) separators retain their olivine structure unchanged. The reasons for this pronounced difference are discussed. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：109 / 114
页数：6
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