Continuity and performance in composite electrodes

JOURNAL OF POWER SOURCES

卷:195

Article

Chen, Guoying¹  Richardson, Thomas J.¹ 

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

关键词: Lithium batteries;    Composite electrodes;    Conductive coating;    Continuity;    Rate performance;   

DOI  :  10.1016/j.jpowsour.2010.03.012

来源: Elsevier

【 摘 要 】

Iris shown that the rate performance of a lithium battery composite electrode may be compromised by poor internal connectivity due to defects and inhomogeneities introduced during electrode fabrication or subsequent handling. Application of a thin conductive coating to the top surface of the electrode or to the separator surface in contact with the electrode improves the performance by providing alternative current paths to partially isolated particles of electroactive material. Mechanistic implications are discussed and strategies for improvement in electrode design and fabrication are presented. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

Free