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    • 2. 发明申请
    • NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    • 非电解电解质二次电池
    • US20080199768A1
    • 2008-08-21
    • US12034460
    • 2008-02-20
    • Naoyuki WADAHideaki FUJITAYukihiro OKADAYoshiyuki MURAOKA
    • Naoyuki WADAHideaki FUJITAYukihiro OKADAYoshiyuki MURAOKA
    • H01M2/00
    • H01M2/0257H01M2/022H01M2/0275H01M2/12H01M10/0587
    • In a nonaqueous electrolyte secondary battery in which an electrode plate group including a positive electrode plate and a negative electrode plate which have a positive electrode mixture layer formed on a positive electrode current collector to contain a positive electrode active material and a negative electrode mixture layer formed on a negative electrode current collector to contain a negative electrode active material, respectively, and are spirally wound or stacked with a separator interposed therebetween is encapsulated in a battery exterior packaging body with an electrolyte, the battery exterior packaging body includes a gas releasing valve for releasing gas in the battery exterior packaging body to the outside when a gas pressure in the battery exterior packaging body reaches a working pressure and is formed to be deformable where the gas pressure in the battery exterior packaging body is lower than the working pressure of the gas releasing valve.
    • 在包含正极板和负极板的电极板组的非水电解质二次电池中,所述正极板和负极板在正极集电体上形成含有正极活性材料和负极混合物层的正极混合层 在负极集电体上分别包含负极活性物质并且分别被间隔开地螺旋卷绕或层叠的隔膜的电池外包装体中,电池外包装体包括气体释放阀,其用于 当电池外包装体中的气体压力达到工作压力时,将电池外包装体中的气体释放到外部,并且形成为可变形,其中电池外包装体中的气体压力低于气体的工作压力 释放阀。
    • 5. 发明申请
    • SECONDARY BATTERY
    • 二次电池
    • US20090098446A1
    • 2009-04-16
    • US12237157
    • 2008-09-24
    • Yukihiro OKADAKiyomi KozukiHideaki Fujita
    • Yukihiro OKADAKiyomi KozukiHideaki Fujita
    • H01M6/10
    • H01M10/0431H01M2/166H01M2/1673H01M2/263H01M10/0525H01M10/0587
    • The secondary battery of this invention includes: an electrode assembly comprising a first electrode and a second electrode which are wound or laminated with only a heat-resistant porous insulating layer interposed between the first electrode and the second electrode; and a first current collector plate electrically connected to the first electrode. The first electrode includes a first electrode mixture layer formed on a first electrode core member. The second electrode includes a second electrode mixture layer formed on a second electrode core member. An end of the first electrode protrudes from an end of the second electrode and an end of the porous insulating layer at an end face of the electrode assembly. The protruding end of the first electrode has a part where the first electrode core member is exposed. The part where the first electrode core member is exposed is welded to the first current collector plate. The end of the porous insulating layer protrudes from an end of the first electrode mixture layer and an end of the second electrode mixture layer. The distance between the first current collector plate and the end of the porous insulating layer on the first current collector plate side is 3 mm or less.
    • 本发明的二次电池包括:电极组件,其包括第一电极和第二电极,该第一电极和第二电极仅被插入在第一电极和第二电极之间的耐热多孔绝缘层缠绕或层压; 和与第一电极电连接的第一集电板。 第一电极包括形成在第一电极芯构件上的第一电极混合物层。 第二电极包括形成在第二电极芯构件上的第二电极混合物层。 第一电极的端部在电极组件的端面处从第二电极的端部和多孔绝缘层的端部突出。 第一电极的突出端部具有露出第一电极芯部件的部分。 将第一电极芯构件露出的部分焊接到第一集电板。 多孔绝缘层的端部从第一电极合剂层的端部和第二电极混合物层的端部突出。 第一集电板与第一集电板侧的多孔绝缘层的端部之间的距离为3mm以下。
    • 8. 发明申请
    • NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    • 非水电解质二次电池
    • US20080213670A1
    • 2008-09-04
    • US12039579
    • 2008-02-28
    • Yukihiro OKADAHideaki Fujita
    • Yukihiro OKADAHideaki Fujita
    • H01M4/40H01M2/14
    • H01M4/485H01M2/166H01M2/1686H01M4/02H01M4/131H01M10/0525H01M2004/021
    • In a non-aqueous electrolyte secondary battery including an electrode assembly including a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a separator interposed therebetween; and a non-aqueous electrolyte, 80 wt % or more of the positive electrode active material is primary particles, and the separator is formed by a porous film, or the porous film is formed at at least one position from the following: between the positive electrode and the separator main body, between the negative electrode and the separator main body, and inside the separator main body, to capture the metal ions leached from the positive electrode active material. Such an arrangement enables a non-aqueous electrolyte secondary battery with significantly less decline in battery capacity, excellent charge and discharge cycle life performance, and capable of stable output for a longer period of time.
    • 在包括含有正极活性物质的正极的电极组合体和含有负极活性物质的负极和插入其间的隔膜的非水电解质二次电池中, 正极活性物质的80质量%以上的非水电解质为初级粒子,隔膜由多孔膜形成,或多孔膜形成于以下至少一个位置:阳性 电极和分离器主体之间,在负极和隔板主体之间以及隔板主体内部,以捕获从正极活性物质中浸出的金属离子。 这种布置使得非水电解质二次电池具有显着更小的电池容量下降,良好的充放电循环寿命性能,并能够在更长的时间内稳定输出。