Aqueous rechargeable lithium battery based on polyaniline and LiMn₂O₄ with good cycling performance

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• 作者：Li Liu ; ^{liulili1203@yahoo.com.cn} ; Fanghua Tian ; Meng Zhou ; Haipeng Guo ; Xianyou Wang ; ^{xywang@xtu.edu.cn}
• 关键词：Aqueous rechargeable lithium battery ; Polyaniline ; Electrochemical properties
• 刊名：Electrochimica Acta
• 出版年：2012
• 期刊代码：30_00134686
• 类别：ch
• 出版时间：30 May, 2012
• 卷：70
• 期：Complete
• 页码：360-364
• 文件大小：773 K

摘要

An aqueous rechargeable lithium battery (ARLB) consisting of a combination of polyaniline (PANI) anode, LiMn₂O₄ cathode, and a saturated LiNO₃ aqueous electrolyte has been constructed. The charge/discharge process of the battery is associated with the doping/un-doping of anions at the anode and intercalation/deintercalation of lithium ions at the cathode. This battery exhibits excellent electrochemical performance. The average discharge voltage of the PANI//LiMn₂O₄ battery is about 1.1 V. During initial 52 cycles, there is an activation process for this battery. After the 52nd cycle, it continues to run 98 cycles, which makes the battery only loses 18.6%of its discharge capacity. The battery delivers a capacity of 89.9 mAh g^鈭? at the 150th cycle. This technology solves the major problem of poor cycling life of ARLBs and enlarges the application of PANI.