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    • 1. 发明专利
    • 非水電解液二次電池
    • 非电解电解质二次电池
    • JP2014232705A
    • 2014-12-11
    • JP2013114272
    • 2013-05-30
    • トヨタ自動車株式会社Toyota Motor Corp宇部興産株式会社Ube Ind Ltd
    • ISHII KENTAKIKUCHI KYOKOITO YUICHINAKANO TOSHIHIROMIHASHI TOSHIHIKOABE KOJIKONDO MASAHIDE
    • H01M10/0567H01M2/18H01M4/36H01M10/058
    • 【課題】内部抵抗が低減され、より高い電池特性を発揮し得る非水電解液二次電池を提供する。【解決手段】正極活物質を有する正極と負極活物質を有する負極と非水電解液とが電池ケース内に収容された非水電解液二次電池を提供する。上記正極活物質の表面には、実質的にスルホン酸化合物に由来する被膜が、該正極活物質の単位表面積(1m2)当たり3.3μM〜7.9μM形成されている。また、上記負極活物質の表面には、実質的にスルホン酸化合物と上記ビニレンカーボネート化合物とに由来する混合被膜が形成されている。そして、上記混合被膜は、上記スルホン酸化合物由来の被膜を該負極活物質の単位表面積(1m2)当たり4.2μM〜6.9μM含み、且つ、上記ビニレンカーボネート化合物由来の被膜を上記スルホン酸化合物由来の被膜1μMに対して2.2μM〜6.9μMの割合で含む。【選択図】図1
    • 要解决的问题:提供一种内部电阻降低且能够实现更高电池特性的非水电解质二次电池。解决方案:非水电解质二次电池包括具有正极活性物质的正极,负极具有 负极活性物质和非水电解质,容纳在电池壳体中。 非水电解质二次电池还包括:涂膜,其基本上源于磺酸化合物,并形成在正极活性物质的表面上,条件是涂膜的单位面积(1m)为3.3-7.9μM 正极活性物质; 以及形成在负极活性物质的表面上的基本上来自磺酸化合物和碳酸亚乙烯酯化合物的混合涂膜。 混合涂膜包括由负极活性物质的每单位表面积(1μm)的起始于磺酸化合物的涂布膜4.2-6.9μM,以及来自碳酸亚乙烯酯化合物的涂膜以2.2- 6.9微米至1微米的源自磺酸化合物的涂膜。
    • 3. 发明专利
    • Evaluation method of positive electrode active material
    • 积极电极活性材料的评价方法
    • JP2011009140A
    • 2011-01-13
    • JP2009153578
    • 2009-06-29
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKANO TOSHIHIROHANAOKA SHIGERU
    • H01M4/525
    • Y02P70/54
    • PROBLEM TO BE SOLVED: To provide an evaluation method of a positive electrode active material containing nickel oxyhydroxide.SOLUTION: As for the evaluation method of this positive electrode active material, the positive electrode active material 100 is evaluated based on an evaluation index X obtained by a ratio of a water amount V of nickel oxyhydroxide 120 originated in the positive electrode active material 100 and a specific surface area B of the positive electrode active material 100. In this evaluation method of the positive electrode active material, a sample is obtained from the positive electrode active material, the evaluation index X is obtained, and the positive electrode active material 100 is evaluated based on the evaluation index X.
    • 要解决的问题:提供含有氢氧化正镍的正极活性物质的评价方法。溶液:对于该正极活性物质的评价方法,根据由上述正极活性物质得到的评价指标X,评价正极活性物质100 在正极活性物质100中产生的氢氧化正镍120的水分量V与正极活性物质100的比表面积B的比。在该正极活性物质的评价方法中,从 正极活性物质,得到评价指标X,根据评价指标X评价正极活性物质100。
    • 5. 发明专利
    • Nonaqueous electrolyte secondary battery, vehicle, and device using the battery
    • 非电解电解质二次电池,车辆和使用电池的设备
    • JP2011210549A
    • 2011-10-20
    • JP2010077427
    • 2010-03-30
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKANO TOSHIHIROWADA NAOYUKI
    • H01M10/0587H01M2/34H01M4/13
    • Y02E60/122
    • PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery, capable of preventing short circuit caused by a contact between a cathode collector section of a cathode plate and an anode section of an anode plate which form an electrode body.SOLUTION: The lithium secondary battery 100 includes the electrode body 120. The cathode collector section 121m of the cathode plate 121 for constituting the electrode body has a cathode inner collector section 121m1 facing the anode section 131w of the anode plate 131, and a cathode outer collector section 131m2 not opposed to the anode plate 131. Then, the cathode plate 121 has a cathode-covering layer 125, which is a cathode-covering layer having electrical insulation and heat resistance of a melting point of 180°C or more, and containing an inner collector section entire-region covering section 125a for covering the entire region of the surface of the cathode inner collector section 121m1.
    • 要解决的问题:提供一种非水电解质二次电池,其能够防止由阴极板的阴极集电体部分和形成电极体的阳极板的阳极部分之间的接触引起的短路。解决方案:锂二次电池 电池100包括电极体120.用于构成电极体的阴极板121的阴极集电体部分121m具有与阳极板131的阳极部分131w相对的阴极内部集电部分121m1和不相对的阴极外部集电器部分131m2 然后,阴极板121具有阴极覆盖层125,阴极覆盖层125是具有电绝缘性和耐熔性为180℃以上的阴极覆盖层,并且包含内部集电体部分 整个区域覆盖部分125a,用于覆盖阴极内部收集器部分121m1的表面的整个区域。
    • 6. 发明专利
    • Nonaqueous electrolyte secondary battery
    • 非电解电解质二次电池
    • JP2013243091A
    • 2013-12-05
    • JP2012116775
    • 2012-05-22
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKANO TOSHIHIROGOTO SATORUSUMI TOMOHIDESANO HIDEKI
    • H01M10/0567H01M10/058
    • H01M10/0567H01M4/13H01M4/139H01M4/366H01M4/628H01M10/052H01M10/446Y02T10/7011Y10T29/49115
    • PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery capable of realizing both of durability and an output characteristic at a high level.SOLUTION: In a nonaqueous electrolyte secondary battery, an electrode body formed by opposing a positive electrode having a positive electrode active material to a negative electrode having a negative active material, a nonaqueous electrolyte, and an oxalate complex compound having a boron (B) atom are housed in a battery case. A coating containing the boron (B) atom derived from the oxalate complex compound is formed on a surface of the negative electrode active material. A relationship between an amount B(μg/cm) of the boron (B) atom measured according to an inductively coupled plasma emission spectral analysis (ICP-AES) and strength Bof the boron (B) atom of three-coordination measured according to an X-ray absorption fine structure analysis (XAFS) satisfies 0.5≤B/B≤1.0.
    • 要解决的问题:提供能够实现高水平的耐久性和输出特性两者的非水电解质二次电池。解决方案:在非水电解质二次电池中,通过将具有正极活性物质的正极 具有负极活性物质的负极材料,非水电解质和具有硼(B)原子的草酸盐配位化合物的材料容纳在电池壳体中。 在负极活性物质的表面上形成含有源自草酸盐配位化合物的硼(B)原子的涂层。 根据电感耦合等离子体发射光谱分析(ICP-AES)测定的硼(B)原子的量B(μg/ cm)与硼酸(B)原子的B X射线吸收精细结构分析(XAFS)满足0.5≤B/B≤1.0。
    • 9. 发明专利
    • Nonaqueous electrolyte secondary battery
    • 非电解电解质二次电池
    • JP2012204179A
    • 2012-10-22
    • JP2011068519
    • 2011-03-25
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKANO TOSHIHIROFUJITA HIDEAKI
    • H01M10/0587H01M2/16H01M2/26H01M2/34H01M10/04
    • Y02E60/12
    • PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery which can restrict occurrence of shorting even in an overheat state.SOLUTION: A nonaqueous electrolyte secondary battery 1 comprises a flat wound electrode body 10 and a battery case 80. The flat wound electrode body consists of an electrode body center part 10C at center in a major axis direction DA and a semi-columnar part 10E at end in the major axis direction. The semi-columnar part includes a first semi-columnar end part on a first direction DX1 side of an axial direction DX and a second semi-columnar end part on a second direction DX2. In a first center end part 10CA and a second center end part 10CB of the electrode body center part, there are included first insulators 51 which, without stuffing with an insulating material, fill between cathode plate bent parts 20E in the first semi-columnar end part and thereby maintain the cathode plate bent parts and a first direction side end part 30EA in a separate state and second insulators 52 which fill between anode plate bent parts 30E in the second end part and thereby maintain the anode plate bent parts and a second direction side end part 20EB in a separate state.
    • 解决的问题:提供即使在过热状态下也能够限制发生短路的非水电解质二次电池。 解决方案:非水电解质二次电池1包括扁平卷绕电极体10和电池壳体80.扁平卷绕电极体由沿长轴方向DA的中心的电极体中心部分10C和半柱状体 部分10E在长轴方向的末端。 半柱状部件包括沿轴向DX的第一方向DX1侧的第一半柱状端部和在第二方向DX2上的第二半柱状端部。 在电极体中心部分的第一中心端部10CA和第二中心端部10CB中,包括第一绝缘体51,其不填充绝缘材料,填充在第一半柱端部的阴极板弯曲部分20E之间 从而将阴极板弯曲部和第一方向侧端部30EA保持在分开状态,第二绝缘体52填充在第二端部中的阳极板弯曲部30E之间,从而保持阳极板弯曲部和第二方向 侧端部20EB处于分离状态。 版权所有(C)2013,JPO&INPIT