NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    18.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非水电解质二次电池

    公开(公告)号:US20140255736A1

    公开(公告)日:2014-09-11

    申请号:US14351193

    申请日:2011-10-12

    Inventor: Masaru Takagi

    Abstract: Provided is a non-aqueous electrolyte secondary battery excellent in resistance to an external stress and capable of increasing the sensitivity for detecting a rise in internal pressure during an overcharge state, without deteriorating battery performances such as a battery capacity. The non-aqueous electrolyte secondary battery includes a positive electrode (21); a negative electrode (22); a porous heat resistance layer (24) disposed between the positive electrode (21) and the negative electrode (22) and including an insulating inorganic filler and a binder; a non-aqueous electrolyte including an overcharge inhibitor that is dissolved and generates protons during an overcharge state; and a current interruption mechanism that interrupts charging when a battery internal pressure becomes equal to or more than a predetermined value during charging. At least a part of the insulating inorganic filler of the porous heat resistance layer (24) is foamed of proton conductive ceramic.

    Abstract translation: 本发明提供一种耐外部应力优异的非水电解质二次电池,能够提高在过充电状态下检测内压上升的灵敏度,而不会使诸如电池容量的电池性能恶化。 非水电解质二次电池包括正极(21); 负极(22); 设置在所述正极(21)和所述负极(22)之间并且包括绝缘性无机填料和粘合剂的多孔耐热层(24) 包含在过充电状态下溶解并产生质子的过充电抑制剂的非水电解质; 以及当在充电期间电池内部压力变得等于或大于预定值时中断充电的电流中断机构。 多孔耐热层(24)的至少一部分绝缘无机填料由质子传导性陶瓷发泡。

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