Title of article :
Effect of mesoporous carbon containing binary conductive additives in lithium ion batteries on the electrochemical performance of the LiCoO2 composite cathodes
Author/Authors :
Zhang، نويسنده , , Qingtang and Peng، نويسنده , , Gongchang and Wang، نويسنده , , Guoping and Qu، نويسنده , , Meizhen and Yu، نويسنده , , Zuo Long، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2009
Pages :
5
From page :
698
To page :
702
Abstract :
Binary conductive additives (BCA), formed by sonication of mesoporous carbon (MC) and acetylene black (AB), were used as conductive additives to improve the electrochemical performance of a LiCoO2 composite cathode. The electrochemical performance of the LiCoO2 composite cathode dispersed with BCA was investigated. The results showed that the electrochemical performance (including the discharge capacity, the discharge voltage and the total internal resistance) of a BCA loaded LiCoO2 composite cathode was better than that of a cathode loaded with AB. The possible mechanism is that the MC in BCA can adsorb and retain electrolyte solution, which allows an intimate contact between the lithium ions and the cathode active material LiCoO2 due to its large mesopore specific surface area. A simplified model was also proposed.
Keywords :
Lithium ion battery , Conductive additives , Mesoporous carbon , cathode , LiCoO2
Journal title :
Solid State Ionics
Serial Year :
2009
Journal title :
Solid State Ionics
Record number :
1721299
Link To Document :
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