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    • 4. 发明专利
    • Electrode, battery, and battery pack
    • 电极,电池和电池组
    • JP2014120399A
    • 2014-06-30
    • JP2012276128
    • 2012-12-18
    • Toshiba Corp株式会社東芝
    • IWASAKI TAKUYAHARADA YASUHIROINAGAKI HIROTAKATAKAMI NORIO
    • H01M4/70H01M2/26H01M4/66
    • H01M4/70H01M2/26H01M4/13H01M4/661H01M10/482
    • PROBLEM TO BE SOLVED: To provide an electrode capable of joining power-collecting tabs with high reliability and with sufficient intensity, a battery excellent in battery characteristics and reliability in joining the power-collecting tabs, and a battery pack including the battery.SOLUTION: According to an embodiment, there is provided an electrode comprising an active-material-containing layer, and a power-collecting body. The power-collecting body includes a first region and a second region on a surface. The first region does not support the active-material-containing layer and has a surface roughness of Ra. The second region does not support the active-material-containing layer and has a surface roughness of Ra. The surface roughness Raof the first region is smaller than the surface roughness Raof the second region.
    • 要解决的问题:为了提供一种能够以高可靠性和足够的强度接合电力收集片的电极,具有优异的电池特性和接合电力收集片的可靠性的电池以及包括电池的电池组。解决方案: 根据实施例,提供了一种包含含活性材料的层和电力收集体的电极。 集电体包括表面上的第一区域和第二区域。 第一区域不支持含活性材料的层并具有Ra的表面粗糙度。 第二区域不支撑含活性物质的层并具有Ra的表面粗糙度。 第一区域的表面粗糙度Ra小于第二区域的表面粗糙度Ra。
    • 5. 发明专利
    • Nonaqueous electrolyte battery and battery pack
    • 非电解电池电池和电池组
    • JP2014041847A
    • 2014-03-06
    • JP2013253180
    • 2013-12-06
    • Toshiba Corp株式会社東芝
    • INAGAKI HIROTAKATAKAMI NORIO
    • H01M4/131H01M2/10H01M4/36H01M4/485H01M10/052
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte battery that improves safety on the occurrence of an internal short-circuit without deteriorating large current performance.SOLUTION: A nonaqueous electrolyte battery includes: an outer case; a positive electrode that is housed in the outer case; a negative electrode that is housed in the outer case so as to be separated from the positive electrode and that includes negative electrode active material; and a nonaqueous electrolyte that is filled in the outer case. The negative electrode has: a current collector; and a negative electrode layer that is formed on a single surface or both surfaces of the current collector and that includes active material. The negative electrode layer has: at least one main negative electrode layer that is formed on the surface of the current collector and that includes active material; and a surface layer that is formed on a surface of the main negative electrode layer and that includes active material different from the active material in the main negative electrode layer. The active material included in the surface layer is a lithium-titanium composite oxide having a spinel structure.
    • 要解决的问题:提供一种提高内部短路发生的安全性的非水电解质电池,而不会降低大电流性能。解决方案:非水电解质电池包括:外壳; 容纳在外壳中的正电极; 负极,容纳在所述外壳中以与所述正极分离并且包括负极活性物质; 以及填充在外壳中的非水电解质。 负极具有:集电体; 以及形成在集电体的单个表面或两个表面上并且包括活性材料的负极层。 负极层具有形成在集电体的表面上并且包含活性物质的至少一个主负极层, 以及形成在主负极层的表面上并且包括与主负极层中的活性物质不同的活性物质的表面层。 包含在表层中的活性物质是具有尖晶石结构的锂 - 钛复合氧化物。
    • 9. 发明专利
    • Method for producing negative electrode active material for battery
    • 生产用于电池的负极活性材料的方法
    • JP2013157335A
    • 2013-08-15
    • JP2013095411
    • 2013-04-30
    • Toshiba Corp株式会社東芝
    • INAGAKI HIROTAKACHANG MUNHARADA YASUHIROHOSHINA KEIGOOTANI YUKITAKAMI NORIO
    • H01M4/485C01G23/00C01G23/04C01G31/00C01G33/00C01G35/00
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide: a nonaqueous electrolyte battery having excellent change/discharge cycle performance; an active material for a battery, used for the nonaqueous electrolyte battery; a battery pack including the nonaqueous electrolyte battery; and an automobile.SOLUTION: According to an embodiment, a method for producing a negative electrode active material for a battery is provided, the negative electrode active material including secondary particles of a monoclinic β titanium composite oxide which has a compression failure strength of 20 MPa or more. The production method includes the steps of: producing raw material secondary particles including a titanium-containing compound and an alkaline cation-containing compound; subjecting the raw material secondary particles to heat treatment to obtain a secondary particle-like proton exchange precursor; obtaining a secondary particle-like proton exchange body by reacting the proton exchange precursor with an acid to carry out the proton exchange of alkaline cations; and obtaining a secondary particle-like monoclinic β titanium composite oxide by subjecting the proton exchange body to heat treatment.
    • 要解决的问题:提供:具有优异的变化/放电循环性能的非水电解质电池; 用于非水电解质电池的用于电池的活性材料; 包括所述非水电解质电池的电池组; 和汽车。解决方案:根据实施例,提供了一种用于制造用于电池的负极活性材料的方法,所述负极活性材料包括单斜晶系的二次颗粒。 压缩破坏强度为20MPa以上的钛复合氧化物。 该制造方法包括以下步骤:制备包含含钛化合物和含碱性阳离子化合物的原料二次粒子; 对原料二次粒子进行热处理,得到二次粒子状质子交换前体; 通过使质子交换前体与酸反应来进行碱性阳离子的质子交换获得二次粒子状质子交换体; 并获得二次颗粒状单斜晶系 钛复合氧化物,通过使质子交换体进行热处理。
    • 10. 发明专利
    • Nonaqueous electrolyte battery
    • 非电解电解质电池
    • JP2013110134A
    • 2013-06-06
    • JP2013051634
    • 2013-03-14
    • Toshiba Corp株式会社東芝
    • SARUWATARI HIDESATOINAGAKI HIROTAKAHOSHINA KEIGOTAKAMI NORIO
    • H01M10/0525H01M4/36H01M4/485H01M4/505H01M4/525H01M10/0568H01M10/0569
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery that offers excellent high-current output characteristics when the SOC is low.SOLUTION: The nonaqueous electrolyte battery includes a positive electrode 3 including a positive electrode active material layer that contains a positive electrode active material containing a lithium-manganese complex oxide, and a positive electrode collector on which the positive electrode active material layer is formed; a negative electrode 4 containing a negative electrode active material that undergoes a charge-discharge reaction at a potential of 1 V or higher relative to lithium; a solvent containing diethyl carbonate; and a nonaqueous electrolyte containing LiPFand LiBFdissolved in the solvent. The molarity of LiPFis higher than the molarity of LiBF.
    • 要解决的问题:提供当SOC低时具有优异的高电流输出特性的非水电解质电池。 解决方案:非水电解质电池包括正极3,其包括含有含有锂锰复合氧化物的正极活性物质的正极活性物质层和正极活性物质层为正极活性物质层 形成 负极4,其含有以相对于锂为1V以上的电位进行充放电反应的负极活性物质; 含有碳酸二乙酯的溶剂; 以及溶解在溶剂中的含有LiPF 4 的非水电解质。 LiPF 6 的摩尔浓度高于LiBF 4 的摩尔浓度。 版权所有(C)2013,JPO&INPIT