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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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现场热引发聚丙烯酸酯类电解质的性能及应用
, PP. 62-66
Keywords: 现场聚合,聚合物电解质,聚合物锂离子电池,电导率
Abstract:
应用热引发现场聚合方法制备聚丙烯酸酯类电解质,并考察其电化学性能.实验表明:该聚合物电解质具有4.5V的电化学稳定窗口,较高的室温电导率及良好的低温性能.当前驱体电解液中液态电解质含量为85%时,其室温电导率为3.2×10-3S·cm-1,-30℃下的电导率达到5.6×10-4S·cm-1.采用现场聚合技术制备的聚合物电池,其电化学性能与液态锂离子电池基本一致,首次充放电效率为92.1%,1.0C率放电容量为0.2C率的95%,-20℃下的放电容量为室温容量的72%,以0.5C率循环300周后,仍保持初始容量的85%以上.
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