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Acta Physico-Chimica Sinica  2007, Vol. 23 Issue (Supp): 14-17    DOI: 10.3866/PKU.WHXB2007Supp04
Article     
Electrochemical Performances of LiMn2O4-based Electrode with Water-soluble Binder
WANG Ya-Dan; WANG Jian; MU Qi-Yong; LI Yong-Wei; QI Lu
CITIC Guoan Mengguli New Energy Technology Co. Ltd., Beijing 102200, P. R. China; New Energy Materials and Technology Laboratory, Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
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Abstract  The spinel LiMn2O4 was synthesized by high temperature solid-state reaction and its structure and morphology were analyzed by XRD and SEM. A 2.5 Ah cylindrical lithium-ion battery was developed using electrodes made with water-soluble polymer binder, and its electrochemical performance was tested as well. The results showed that the synthesized LiMn2O4 material has simple spinel phase. The cell with water-binder LiMn2O4 electrode showed excellent electrochemical performance. The cathode’s specific capacity reached 95.8 mAh·g-1 at 0.5C (1C=2.5A) rate and the average discharge voltage of the cell was 3.85 V at 1C rate. The cells also have good safety performances during overcharging.

Key wordsCathode with water-binder      LiMn2O4      Li-ion battery     
Received: 01 January 1900      Published: 04 January 2008
MSC2000:  O646  
Corresponding Authors: QI Lu     E-mail: qilu@pku.edu.cn
Cite this article:

WANG Ya-Dan; WANG Jian; MU Qi-Yong; LI Yong-Wei; QI Lu. Electrochemical Performances of LiMn2O4-based Electrode with Water-soluble Binder. Acta Physico-Chimica Sinica, 2007, 23(Supp): 14-17.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB2007Supp04     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2007/V23/ISupp/14

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