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    • 2. 发明专利
    • Positive electrode for lithium secondary battery, and method for manufacturing the same
    • 用于锂二次电池的正电极及其制造方法
    • JP2011134535A
    • 2011-07-07
    • JP2009291809
    • 2009-12-24
    • Panasonic Corpパナソニック株式会社
    • OKAMURA KAZUHIRO
    • H01M4/13H01M4/131H01M4/139H01M4/1391H01M4/62
    • Y02P70/54
    • PROBLEM TO BE SOLVED: To provide a positive electrode for a lithium secondary battery in which a positive electrode active material and a conductive agent are highly filled in a positive electrode mixture layer, and method for manufacturing the same. SOLUTION: As the positive electrode active material and the conductive agent in order to form the positive electrode mixture layer, the conductive agent is contained by 0.5 to 4 pts.mass against the positive electrode active material 100 pts.mass, and out of particle size distribution cumulative curve of cumulative undersize percentage of a volumetric reference against a common logarithm value of a particle diameter (μm) of their mixture, a combination in which a correlation coefficient R of a primary regression line within a range of the cumulative undersize percentage of 0 to 30% becomes 0.94 or more is used. By rolling a coating film of the positive electrode mixture layer to include this combination and adjusting a volumetric ratio of the positive electrode active material to 0.8 or more, the positive electrode for the lithium secondary in which the positive electrode active material and the conductive agent are highly filled into the positive electrode mixture layer is obtained. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种正极活性物质和导电剂在正极混合物层中高度填充的锂二次电池用正极及其制造方法。 解决方案:为了形成正极混合物层,作为正极活性物质和导电剂,与正极活性物质100质量份相比,导电剂含有0.5〜4质量比, 相对于其混合物的粒径(μm)的常用对数值的体积参考的累积尺寸过小百分比的粒度分布累积曲线,其中累积尺寸过小范围内的一次回归线的相关系数R 0〜30%的比例变为0.94以上。 通过将正极合剂层的涂膜卷绕以包含该组合并将正极活性物质的体积比调节至0.8以上,将正极活性物质和导电剂为正极活性物质和导电剂的锂二次正极 得到高填充正极合剂层。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Electrode for battery, manufacturing method thereof, and battery
    • 电池电极,其制造方法和电池
    • JP2009283353A
    • 2009-12-03
    • JP2008135595
    • 2008-05-23
    • Panasonic Corpパナソニック株式会社
    • MINAMINO TETSUOOKAMURA KAZUHIRO
    • H01M4/13H01M4/139H01M4/36
    • Y02P70/54
    • PROBLEM TO BE SOLVED: To provide a battery which improves a filling rate of active material in an electrode mixture layer, and achieves excellent energy density.
      SOLUTION: The electrode for a battery includes a collector and the mixture layer formed on a surface of the collector. The mixture layer contains the active material and a binder. The active material includes particles having positive correlationship between a particle diameter and a degree of circularity. The active material contains first active material particles and second active material particles with smaller circularity than that of the first active material particle. Air gaps between the first active material particles are filled with the second active material particles.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种提高电极混合物层中的活性物质的填充率的电池,并且实现优异的能量密度。 解决方案:电池用电极包括集电体,在集电体的表面形成混合层。 混合层含有活性物质和粘合剂。 活性物质包括粒径与圆度之间具有正相关关系的粒子。 活性物质含有比第一活性物质粒子小的圆形度的第一活性物质粒子和第二活性物质粒子。 第一活性物质粒子之间的空隙填充有第二活性物质粒子。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Active material for alkaline dry battery, its manufacturing method, and alkaline dry battery using it
    • 碱性干电池的活性物质,其制造方法和使用其的碱性干电池
    • JP2008300041A
    • 2008-12-11
    • JP2007141226
    • 2007-05-29
    • Panasonic Corpパナソニック株式会社
    • OKAMURA KAZUHIROYOSHIZAWA KOJI
    • H01M4/52H01M4/50
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide an alkaline dry battery suppressing drop in low rate discharge characteristics, enhancing high rate discharge characteristics, and suppressing increase in manufacturing cost.
      SOLUTION: An active material for the alkaline dry battery contains a manganese nickel composite oxide represented by formula (1): Mn
      1-x Ni
      x O
      2-y (in the formula, 0.01≤x≤0.5; 0≤y≤0.5), and the alkaline dry battery contains the manganese nickel composite oxide in a positive electrode. The manganese nickel composite oxide shows discharge potential higher than that of conventional manganese dioxide. The alkaline dry battery using the manganese nickel composite oxide as a positive active material can enhance high rate discharge characteristics due to high discharge voltage. Since addition of material not contributing to discharge reaction is made unnecessary, drop in low rate discharge characteristics can be suppressed.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 解决的问题:提供抑制低放电特性降低的碱性干电池,提高高倍率放电特性,抑制制造成本的增加。 解决方案:用于碱性干电池的活性材料包含由式(1)表示的锰镍复合氧化物:Mn 1-x x O 2-y (式中,0.01≤x≤0.5,0≤y≤0.5),碱性干电池在正极中含有锰镍复合氧化物。 锰镍复合氧化物的放电电位高于常规二氧化锰。 使用锰镍复合氧化物作为正极活性物质的碱性干电池可以由于高放电电压而提高高放电特性。 由于不需要添加不对放电反应有贡献的材料,可以抑制低放电特性的降低。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Active material for nonaqueous electrolyte secondary battery, its manufacturing method, and battery using it
    • 非电解电解质二次电池的活性材料,其制造方法和使用电池的电池
    • JP2009064702A
    • 2009-03-26
    • JP2007232540
    • 2007-09-07
    • Panasonic Corpパナソニック株式会社
    • OKAMURA KAZUHIRO
    • H01M4/525H01M4/50H01M4/505H01M4/52
    • Y02P70/54
    • PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery excellent mainly in charge discharge cycle characteristics.
      SOLUTION: The manufacturing method of the active material for a nonaqueous electrolyte secondary battery includes a process of heating a raw material containing manganese and nickel under an atmosphere with a pressure of oxygen gas of 10 MPa or more and 200 MPa or less, and the raw material contains at least a kind selected from a group consisting of a carbonate coprecipitation matter containing manganese and nickel, a hydroxide coprecipitation matter containing manganese and nickel, a mixture of nitrate containing manganese and nitrate containing nickel, and a mixture of organic acid salt containing manganese and organic acid salt containing nickel, and the active material for the nonaqueous electrolyte secondary battery made by the above manufacturing method is provided.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供主要以充电放电循环特性优异的非水电解质二次电池。 解决方案:非水电解质二次电池用活性物质的制造方法包括在氧气压力为10MPa以上且200MPa以下的气氛下加热含有锰和镍的原料的工序, 原料中含有选自由锰和镍构成的碳酸盐共沉淀物,含有锰和镍的氢氧化物共沉淀物,含有锰的硝酸盐和含硝酸盐的混合物中的至少一种,以及有机酸的混合物 含有锰的盐和含有镍的有机酸盐,以及通过上述制造方法制造的非水电解质二次电池用活性物质。 版权所有(C)2009,JPO&INPIT