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    • 2. 发明授权
    • Lithium ion secondary battery, vehicle, and battery mounting device
    • 锂离子二次电池,车辆和电池安装装置
    • US09293785B2
    • 2016-03-22
    • US13498683
    • 2010-03-26
    • Tomoyoshi UekiHideaki Fujita
    • Tomoyoshi UekiHideaki Fujita
    • H01M10/04H01M10/0525H01M2/02H01M10/0587H01M2/26
    • H01M10/0525H01M2/0217H01M2/263H01M10/0431H01M10/0468H01M10/0481H01M10/0587Y02E60/122Y02T10/7011
    • A lithium ion secondary battery includes a flat wound electrode body including a positive electrode sheet and a negative electrode sheet that are wound while interposing therebetween separators into a flat shape, and a battery case. In the flat wound electrode body, a central portion has a more constricted shape than end portions by pressing toward a winding axis in a short-side direction and each end portion includes an end-portion positive electrode sheet, an end-portion negative electrode sheet, and end-portion separators, and a core member arranged more inward than them. With tensile forces generated by pressing of the central portion in a central-portion positive electrode sheet, central-portion negative electrode sheet, and central-portion separators, the end-portion positive electrode sheet, end-portion negative electrode sheet, and end-portion separators are in pressure contact with each other and press the outer surfaces of the core member.
    • 锂离子二次电池包括平板卷绕电极体和电池壳体,该平坦卷绕电极体包括正极片和负极片,所述正极片和负极片在分隔件之间插入平坦形状时被卷绕。 在扁平卷绕电极体中,通过在短边方向上朝向卷绕轴的方向挤压,中央部的形状比端部形状多,并且各端部包括端部正极片,端部负极片 和端部分隔件,以及比其更内侧布置的芯构件。 通过在中央部正极片,中央部负极片和中央部隔片中的中央部的按压而产生的拉伸力,端部正极片,端部负极片, 部分隔板彼此压力接触并挤压芯构件的外表面。
    • 4. 发明申请
    • EELECTRODE BODY FOR USE IN NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    • 用于非水电解质二次电池和非水电解质二次电池的电子体
    • US20150079478A1
    • 2015-03-19
    • US14551853
    • 2014-11-24
    • Tomohiro NakanoHideaki Fujita
    • Tomohiro NakanoHideaki Fujita
    • H01M10/058H01M2/18H01M4/13
    • H01M10/058H01M2/18H01M4/13
    • In an electrode body for use in non-aqueous electrolyte secondary battery, a first end of a separator is located more interiorly than one positive electrode end of a positive electrode plate in a width direction, located more exteriorly than one end of a coated positive electrode portion of the positive electrode plate, and located more exteriorly than one end of a coated negative electrode portion of a negative electrode plate. The first end of the separator is thicker than an intermediate portion. A second end of the separator is located more interiorly than an other negative electrode end of the negative electrode plate in the width direction, located more exteriorly than the other end of the coated positive electrode portion of the positive electrode plate, and located more exteriorly than an other end of the coated negative electrode portion of the negative electrode plate. The second end of the separator is thicker than the intermediate portion.
    • 在用于非水电解质二次电池的电极体中,隔板的第一端位于比正电极的一端更靠外侧位于比正极板的宽度方向的一个正极端更靠内侧 并且位于比负极板的被覆负极部分的一端更外侧的位置。 隔板的第一端比中间部分厚。 隔板的第二端位于比正极板的被覆正极部的另一端更靠外侧位于比负极板的宽度方向的另一个负极端更靠内侧的位置, 负极板的被覆负极部的另一端。 隔板的第二端比中间部分厚。
    • 8. 发明授权
    • Nonaqueous electrolyte secondary battery
    • 非水电解质二次电池
    • US07910242B2
    • 2011-03-22
    • 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。