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    • 5. 发明申请
    • NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    • 非水电解质二次电池
    • US20140011068A1
    • 2014-01-09
    • US14006119
    • 2012-03-21
    • Noriko YamashitaMasato Iwanaga
    • Noriko YamashitaMasato Iwanaga
    • H01M2/16
    • H01M2/1673H01M2/1653H01M2/1686H01M4/13H01M10/052H01M10/058Y02T10/7011
    • A non-aqueous electrolyte secondary battery comprising a positive electrode plate contains a positive electrode active material capable of absorbing and releasing lithium reversibly, a negative electrode plate containing a negative electrode active material capable of absorbing and releasing lithium reversibly, a separator keeping the positive electrode plate and the negative electrode plate isolated, and a non-aqueous electrolytic solution containing a non-aqueous solvent and an electrolyte salt, wherein the positive electrode plate has a surface on which an inorganic particle layer containing inorganic particles and a binder is formed, and the separator is a polyolefin microporous film including a laminate film having at least two layers and containing inorganic particles in at least a negative-electrode-side surface layer thereof. This configuration can improve storage properties and reduce swelling under high-temperature environment.
    • 包含正极板的非水电解质二次电池包含能够可逆地吸收和释放锂的正极活性物质,含有可逆地吸收和释放锂的负极活性物质的负极板,保持正极的隔板 隔板的负极板和含有非水溶剂和电解质盐的非水电解液,其中所述正极板具有形成有无机颗粒和粘合剂的无机颗粒层的表面,以及 隔膜是包含具有至少两层并且至少在其负电极侧表面层中含有无机颗粒的层叠膜的聚烯烃微多孔膜。 这种配置可以改善储存性能,减少高温环境下的溶胀。