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    • 1. 发明专利
    • Nonaqueous electrolyte battery module
    • 非电解电解质电池模块
    • JP2011249015A
    • 2011-12-08
    • JP2010117609
    • 2010-05-21
    • Hitachi Maxell Energy Ltd日立マクセルエナジー株式会社
    • KAWAI TETSUONAGAI TATSUHIROTA SHOICHI
    • H01M2/10H01M2/16H01M10/052H01M10/0565H01M10/0567H01M10/48H01M10/60H01M10/613H01M10/647H01M10/653H01M10/6555
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery module having high capacity and high safety.SOLUTION: A nonaqueous electrolyte battery module includes five to forty nonaqueous electrolyte batteries, a heat radiating member and a battery abnormality detecting section. The electric capacity of each of the nonaqueous electrolyte batteries is 8 to 20 Ah, and the nonaqueous electrolyte battery includes battery elements and a flexible exterior material accommodating the battery elements therein. The battery elements include a cathode, an anode, a separator, and a nonaqueous electrolyte. The cathode includes a lithium containing complex oxide in a spinel structure including manganese as a cathode active material, and the separator includes a heat resistant porous substrate and a fine porous film comprised of a thermoplastic resin. The nonaqueous electrolyte includes phosphazene derivative. The heat radiating member is provided for the each nonaqueous electrolyte battery, and the battery abnormality detecting section is provided for the each nonaqueous electrolyte battery.
    • 要解决的问题:提供具有高容量和高安全性的非水电解质电池模块。 解决方案:非水电解质电池模块包括五至四十个非水电解质电池,散热构件和电池异常检测部。 非水电解质电池的电容量为8〜20Ah,非水电解质电池包括电池元件和容纳电池元件的柔性外部材料。 电池元件包括阴极,阳极,隔板和非水电解质。 阴极包括含有锰作为正极活性物质的尖晶石结构中的含锂复合氧化物,隔板包括耐热多孔基材和由热塑性树脂构成的微细多孔膜。 非水电解质包括磷腈衍生物。 为每个非水电解质电池设置散热构件,并且为每个非水电解质电池设置电池异常检测部。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Laminated type battery
    • 层压式电池
    • JP2011198742A
    • 2011-10-06
    • JP2010257533
    • 2010-11-18
    • Hitachi Maxell Energy Ltd日立マクセルエナジー株式会社
    • UENO TOMOHIROYOSHIKAWA HIROKAZUKAWAI TETSUO
    • H01M2/12H01M2/02
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a laminated type battery capable of securing safety, as a specific site is preferentially opened at abnormal rise of internal pressure.SOLUTION: In the laminated type battery housing an electrode body having a sheet-shaped positive electrode, a sheet-shaped negative electrode, and a separator in a laminated film outer package body, the outer package body is structured with two sheets of metal laminated films, or is structured by folding one metal laminated film in two, its peripheral edge of the outer package body is sealed by firmly fixing upper and lower metal laminated films, and the vent section is formed inward rather than a firmly fixed section on the peripheral edge of the outer package body by firmly fixing the upper and lower metal laminated films while being independent from the firmly fixed section. A hole for penetrating at least one of the upper and lower metal laminated films is arranged on the vent section.
    • 要解决的问题:提供一种能够确保安全性的层叠型电池,因为特定部位优先在内部压力异常升高时打开。解决方案:在层叠型电池中,具有片状正极的电极体, 片状负极和层叠膜外包装体中的隔膜,外包装体由两片金属层叠膜构成,或者通过将一个金属层叠膜折叠成两层,其外包装的周缘部 通过牢固地固定上下金属层压膜来密封主体,并且通过牢固地固定上,下金属层压膜而将排气部分形成为内部而不是牢固固定在外包装体的周缘上的部分,同时独立于 牢固固定部分。 用于穿透上下金属层叠膜中的至少一个的孔布置在排气部分上。
    • 3. 发明专利
    • Electrode of nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery
    • 非电解电解质二次电池和非电解电解质二次电池电极
    • JP2006244805A
    • 2006-09-14
    • JP2005057097
    • 2005-03-02
    • Hitachi Maxell Ltd日立マクセル株式会社
    • YAMADA MASAYUKIUEDA TOKUJIUCHITOMI KAZUTAKAKAWAI TETSUO
    • H01M4/02H01M4/131H01M4/505H01M4/525H01M4/62H01M10/05H01M10/052
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide an electrode capable of structuring a nonaqueous electrolyte secondary battery which can improve preservation characteristics and cycle characteristics, and yet secure excellent stability while attaining higher capacity by high-voltage charging, as well as a nonaqueous electrolyte secondary battery equipped with the electrode.
      SOLUTION: The electrode is provided with a cathode mixture layer containing an active material expressed in a composition formula: Li
      (1+δ) Mn
      x Ni
      y Co
      (1-x-y) O
      2 (-0.15 2 /g, and when an amount of Co to the sum of Mn, Ni, and Co on the surface of the cathode mixture layer is set at 'a' in an atom ratio, a value of 'a' is 1.5 times or more of an average value [(1-x-y)/1] at an atom ratio of the Co amount to the sum of Mn, Ni, and Co on the surface of the cathode mixture layer.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够构造非水电解质二次电池的电极,其可以提高保存特性和循环特性,并且通过高压充电获得更高容量的同时确保优异的稳定性以及非水电解质 二次电池配备电极。 解决方案:电极设有含有以组成式表示的活性物质的阴极混合物层:Li(SB)(1 +δ) Mn x Ni < (-0.08 <δ<0.15,0.1 平均粒径为5〜25μm,比表面积为0.1〜0.6m 2 / SP / g,当Co,Mn,Ni,Co的和相对于 阴极混合层的表面以原子比设定为“a”,“a”的值为平均值[(1-xy)/ 1]的1.5倍以上,Co原子比为 在阴极混合层的表面上的Mn,Ni和Co的总和。 版权所有(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Nonaqueous electrolyte battery
    • 非电解电解质电池
    • JP2005038708A
    • 2005-02-10
    • JP2003274620
    • 2003-07-15
    • Hitachi Maxell Ltd日立マクセル株式会社
    • WATANABE MITSUTOSHIMASUKICHI REIKOKAWAI TETSUOEDAMOTO TOSHIYUKI
    • H01M6/16H01M4/06H01M4/62
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To obtain a nonaqueous electrolyte battery 1 superior in discharging property by making the windable diameter of a positive electrode 3 as small as possible by providing positive electrode sheets 20 and 21 to be rich in bending property and flexibility, by obtaining the best condition for composition and density, etc., in positive electrode mixture layers in the nonaqueous electrolyte battery with an electrode winding body 6 with the sheet state positive electrode 3 with a large thickness wound together with a negative electrode 4 and a separator 5.
      SOLUTION: Ketchen black provided with a ≥400 m
      2 /g and ≤2,000 m
      2 /g specific surface area is adopted as conductive assistant contained in the positive electrode mixture layer constituting the positive electrode sheets 20 and 21. The blending ratio of Ketchen black in the positive electrode mixture layer is ≥2.0 wt% and ≤4.0 wt%. In addition, the density of each positive sheet 20 and 21 is ≥2.2 g/cm
      3 and ≤2.7 g/cm
      3 .
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题为了通过提供具有较高弯曲性和柔性的正电极片20和21,通过使正电极3的可卷绕直径尽可能小地获得排出性能优异的非水电解质电池1, 通过在具有电极绕组体6的非水电解质电池的正极混合物层中获得组合物和密度等的最佳条件,其中具有与负极4和隔膜卷绕在一起的较大厚度的片状态正极3 5.解决方案:采用Ketchen黑色提供≥400m 2 / g和≤2,000m 2 / g比表面积作为导电助剂 构成正极片20和21的正电极混合物层。正电极混合物层中的Ketchen黑的共混比为≥2.0重量%和≤4.0重量%。 另外,每个正片材20和21的密度为≥2.2g/ cm 3,SP2≤2.7g/ cm 3。 版权所有(C)2005,JPO&NCIPI
    • 6. 发明专利
    • NON-AQUEOUS ELECTROLYTE BATTERY
    • JP2003178766A
    • 2003-06-27
    • JP2001376933
    • 2001-12-11
    • HITACHI MAXELL
    • KAWAI TETSUO
    • H01M2/02H01M2/26H01M4/66H01M6/16
    • PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte battery, of which the productivity is good, the energy density is large, and the short-circuit does not occur, by utilizing effectively the advantageous points, in which it has the high energy density that the non-aqueous electrolyte batteries, such as lithium - manganese dioxide battery, originally have, compared with other batteries, and it can constitute the battery using inexpensive materials, and by solving problems that collectors with high occurrence rate of short-circuit and large volume must be used. SOLUTION: The non-aqueous electrolyte battery is constituted by using SUS444 foil, of which the thickness as the collector of positive electrode is 20 μm or less and the intensity after rolling and annealing is 200 Hv or less, and by using SUS444 for a positive-electrode can and/or a positive-electrode terminal. As for the thickness of SUS444 foil as the collector of the above positive electrode, it is desirable that it is 6 μm or more and 12 μm or less. COPYRIGHT: (C)2003,JPO
    • 7. 发明专利
    • POLYMER ELECTROLYTIC CELL
    • JP2001126702A
    • 2001-05-11
    • JP30622499
    • 1999-10-28
    • HITACHI MAXELL
    • YAMAMOTO HIROSHIKAWAI TETSUOYOSHIMURA TAKAYUKITANAKA TADAO
    • H01M2/22H01M2/26H01M10/05H01M10/0565H01M10/0587H01M10/40
    • PROBLEM TO BE SOLVED: To provide a polymer electrolytic cell in which irregularities of distances between a positive electrode terminal and a negative electrode terminal and position accuracy of the positive electrode terminal and the negative electrode terminal is high. SOLUTION: An electrolytic cell extracts a positive electrode terminal and a negative electrode terminal from an electrode winding center of a fabric roll form winding structure, by winding a positive electrode formed by forming a positive electrode mixture layer on a positive electrode collector and a negative electrode formed by forming a negative electrode mixture layer on a negative electrode collector in a fabric roll form by interposing between the electrodes, where the positive electrode terminal is connected to a lead portion of the positive electrode by remaining an exposed portion of the positive electrode collector on a winding-start portion of the positive electrode and bending the lead portion of the positive electrode formed from the exposed portion of the positive electrode collector, to intervene the lead portion in the positive electrode, and the negative electrode terminal is connected to the lead portion of the negative electrode by leaving an exposed portion of the negative electrode collector on a winding-start portion of the negative electrode and bending the lead portion of the negative electrode formed from the exposed portion of the negative electrode collector to intervene the lead portion in the negative electrode.
    • 8. 发明专利
    • STACKED POLYMER ELECTROLYTE BATTERY
    • JP2001068155A
    • 2001-03-16
    • JP23643499
    • 1999-08-24
    • HITACHI MAXELL
    • ISHIDA OSAMUWATANABE OSAMUYAMAMOTO HIROSHIKAWAI TETSUO
    • H01M2/20H01M6/46H01M10/05H01M10/0565H01M10/0585H01M10/40
    • PROBLEM TO BE SOLVED: To provide a stacked polymer electrolyte battery with high safety, capable of preventing emitting smoke.ignition even when the battery is short- circuited being nailed or crushed. SOLUTION: This polymer electrolyte battery is assembled by sealing a stacked electrode group formed by stacking positive electrodes 1 having a positive electrode mix layer 1b formed on at least one side of a positive electrode current collector 1a and negative electrodes 2 having a negative electrode mix layer 2b formed on at least one side of a negative electrode current collector 2a so as to interpose a polymer electrolyte layer between a set of electrodes into an outer case 4 containing a metal foil. The thickness of the electrode current collector of at least one outermost electrode of the stacked electrode group is made 30 μm or more, the electrode mix layer is not formed on the outside of this electrode current collector, a lead part 2c of the electrode having the same polarity and this electrode current collector are connected, and the thickness of the metal foil of the outer case is made 30 μm or more, and an electrode terminal having the other polarity and the metal foil of the outer case are connected.
    • 9. 发明专利
    • POLYMER ELECTROLYTE BATTERY
    • JP2000188130A
    • 2000-07-04
    • JP36393398
    • 1998-12-22
    • HITACHI MAXELL
    • KAWAI TETSUOHIGAKI KATSUHIROSUGIYAMA HIROSHIYOKOYAMA AKIMICHI
    • H01M2/02H01M4/13H01M4/139H01M10/05H01M10/0565H01M10/058H01M10/40H01M4/02
    • PROBLEM TO BE SOLVED: To reduce internal resistance and to improve a load characteristic by surrounding at least one electrode of a positive electrode and a negative electrode with a support made of a porous sheet such as a nonwoven fabric to form an integrated object of the electrode and the support, and using a gelatinous polymer electrolyte gelatinized by impregnating the integrated object with an electrolyte containing a gelatinized component. SOLUTION: For integrating an electrode and a support, the electrode is stored in the bag-like support to be surrounded by the support, or the electrode can be pinched by one or two strip-like supports to be surrounded by the supports. A negative electrode is normally made larger than a positive electrode to prevent the occurrence of dendrite and to ensure safety, the size of the support can be made smaller when the positive electrode is surrounded by the support than when the negative electrode is surrounded by the support, thus a battery capacity can be increased. When the negative electrode is surrounded by the support, the boundary face state between the negative electrode and a gelatinous polymer electrolyte can be made homogeneous, thus the polarization of the negative electrode at the time of a reaction can be reduced.