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    • 9. 发明申请
    • LITHIUM SECONDARY BATTERY
    • 锂二次电池
    • US20120141846A1
    • 2012-06-07
    • US13313039
    • 2011-12-07
    • Norio IWAYASUJinbao ZhaoHidetoshi Honbo
    • Norio IWAYASUJinbao ZhaoHidetoshi Honbo
    • H01M10/42
    • H01M2/345H01M2/022H01M4/62H01M10/052H01M10/0587H01M10/4235H01M2300/004Y02T10/7011
    • In a lithium secondary battery which contains an electrode group including a positive electrode, a negative electrode and a separator interposed between the positive electrode and the negative electrode, and an electrolytic solution, a current shut-off portion which is activated by an increase in an internal pressure is provided, a polymerizable compound having an aromatic functional group and a polymerizable functional group, or a polymer having an aromatic functional group and a residue of a polymerizable functional group is contained, and a carbon dioxide generating agent which produces carbon dioxide by a neutralization reaction is contained in at least one of the positive electrode and the separator. Thereby, the current shut-off valve is activated in an early stage of overcharge to increase the safety of the battery when overcharged.
    • 在包含正极,负极和夹在正极和负极之间的隔膜的电极组和电解液的锂二次电池中,电流切断部分通过增加激活 提供内部压力,包含具有芳香族官能团和聚合性官能团的聚合性化合物,或具有芳香族官能团的聚合物和可聚合官能团的残基,以及二氧化碳发生剂,其通过 中和反应包含在正极和隔膜中的至少一个中。 因此,电流截止阀在过充电的早期阶段被激活,以增加当过充电时电池的安全性。