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作 者:朱亚薇[1] 董全峰[1] 郑明森[1] 金明钢[1] 詹亚丁[1] 林祖赓[1]
出 处:《电池》2006年第3期168-169,共2页Battery Bimonthly
基 金:973项目(2002CB211800);国家自然科学基金(20373058);厦门市科技计划项目(3502Z20055018)
摘 要:环己基苯和二甲苯作为耐过充添加剂加入锂离子电池电解液中。环己基苯和二甲苯分别在4.70 V、4.66 V(vs.Li/Li+)处发生电聚合反应。聚合物几乎全部覆盖在隔膜表面,阻断了反应,改善了电池的安全性。添加5%添加剂的电池,均可耐3C1、0 V过充电,且对电池正常充放电时的电化学性能影响很小。Cyclohexyl benzene(CB) and xylene as overcharging additives were added into Li-ion battery electrolyte. CB and xylene could be electrochemically polymerized at 4.70 V and 4.66 V ( vs. Li/Li^+ ), respectively. The polymer mainly deposited on the separator, restrained the reaction and improved the safety performance of the battery. The batteries with the additives could resist overcharge of 3 C, 10 V when the content of additive was 5% .There was only a slight influence on the electrochemical performance of the batteries with normal charge-discharge.
分 类 号:TM912.9[电气工程—电力电子与电力传动]
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