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    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    1.
    发明申请
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非电解电解质二次电池

    公开(公告)号：US20170025715A1

    公开(公告)日：2017-01-26

    申请号：US15124849

    申请日：2015-03-05

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hideyuki SAKA ,  Keiichi TAKAHASHI ,  Hideaki FUJITA

    IPC: H01M10/42 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/505 ,  H01M2/34 ,  H01M10/0567

    CPC classification number: H01M10/4235 ,  C01G53/50 ,  C01P2002/50 ,  C01P2002/52 ,  H01M2/345 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2200/20

    Abstract: A nonaqueous electrolyte secondary battery according to the present invention includes: an electrode body including a positive electrode including a positive-electrode active material layer; an external terminal connected to the electrode body; a nonaqueous electrolyte including a gas generant, and a current interrupt device. A content of the gas generant is at least 4 mass %. The positive-electrode active material layer includes, as a positive-electrode active material, a complex oxide containing' at least zirconium (Zr) and calcium (Ca) as constituent elements. When a sum total of metal elements, except metal that becomes a charge carrier, in the complex oxide is 100 mol % in terms of a mole percentage, the complex oxide contains Zr from 0.1 mol % to 0.5 mol % inclusive and Ca from 0.1 mol % to 0.3 mol % inclusive.

    Abstract translation: 根据本发明的非水电解质二次电池包括：电极体，包括具有正极活性物质层的正极; 连接到电极体的外部端子; 包含气体发生剂的非水电解质和电流中断装置。 气体发生剂的含量为4质量％以上。 正极活性物质层包含作为正极活性物质的含有至少锆（Zr）和钙（Ca）作为构成元素的复合氧化物。 当复合氧化物中除成为电荷载体的金属以外的金属元素的总和为100摩尔％时，复合氧化物含有0.1摩尔％〜0.5摩尔％的含有Zr的Zr和0.1摩尔的Ca ％〜0.3摩尔％。

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME
    2.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME 有权
    非水电解质二次电池及其制造方法

    公开(公告)号：US20150349329A1

    公开(公告)日：2015-12-03

    申请号：US14692844

    申请日：2015-04-22

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hideyuki SAKA ,  Hideaki FUJITA ,  Keiichi TAKAHASHI ,  Hideki SANO ,  Tatsuya HASHIMOTO

    IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1391

    CPC classification number: H01M4/364 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/028

    Abstract: A non-aqueous electrolyte secondary battery includes a positive electrode composite material layer containing first positive electrode active material particles containing a lithium nickel composite oxide, second positive electrode active material particles containing lithium iron phosphate, and a conductive material. A ratio of the second positive electrode active material particles in a total mass of the first positive electrode active material particles and the second positive electrode active material particles is not lower than 5 mass % and not higher than 20 mass %. A standard deviation σ representing distribution of an iron element satisfies a condition of 0.28≦σ≦0.52 when distribution of the iron element is determined by conducting area analysis with an electron probe microanalyzer in a cross-section of the positive electrode composite material layer.

    Abstract translation: 非水电解质二次电池包括含有含有锂镍复合氧化物的第一正极活性物质粒子和含有磷酸铁锂的第二正极活性物质粒子和导电性物质的正极复合材料层。 第一正极活性物质粒子和第二正极活性物质粒子的总质量的比例为5质量％以上且20质量％以下。 标准偏差 当正电极复合材料层的截面中通过用电子探针微量分析仪进行面积分析来确定铁元素的分布时，表示铁元素的分布满足条件0.28＆nlE;＆sgr;＆nlE; 0.52。

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND POSITIVE ELECTRODE ACTIVE MATERIAL FOR USE IN SAME
    4.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND POSITIVE ELECTRODE ACTIVE MATERIAL FOR USE IN SAME 审中-公开
    非水电解质二次电池和正极电极活性材料

    公开(公告)号：US20160172663A1

    公开(公告)日：2016-06-16

    申请号：US14959702

    申请日：2015-12-04

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hideyuki SAKA ,  Keiichi TAKAHASHI

    IPC: H01M4/131 ,  H01M10/42 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505

    CPC classification number: H01M10/4235 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  Y02T10/7011

    Abstract: Provided is a non-aqueous electrolyte secondary battery combining high battery performance in normal use and endurance against overcharge. The non-aqueous electrolyte secondary battery comprises a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode comprises a positive electrode active material 16. Positive electrode active material 16 is formed of a particulate lithium composite oxide 16c comprising at least lithium, nickel, cobalt, manganese and tungsten; and a nickel oxide layer 16s formed on the lithium composite oxide surface. With the non-lithium metals in lithium composite oxide 16c being 100% by mole, tungsten accounts for 0.05% by mole or greater, but 2% by mole or less. With lithium composite oxide 16c being 100 parts by mass, the nickel oxide content is 0.01 part by mass or greater, but 2 parts by mass or less.

    Abstract translation: 提供一种非水电解质二次电池，其在正常使用中具有高电池性能和耐过充电。 非水电解质二次电池包括正极，负极和非水电解质。 正极包括正极活性物质16.正极活性物质16由至少包含锂，镍，钴，锰和钨的颗粒状锂复合氧化物16c形成; 以及形成在锂复合氧化物表面上的氧化镍层16s。 锂复合氧化物16c中的非锂金属为100摩尔％时，钨占0.05摩尔％以上，但为2摩尔％以下。 锂复合氧化物16c为100质量份时，氧化镍含量为0.01质量份以上，但为2质量份以下。

    LITHIUM ION SECONDARY BATTERY
    6.
    发明申请
    LITHIUM ION SECONDARY BATTERY 审中-公开

    公开(公告)号：US20170373352A1

    公开(公告)日：2017-12-28

    申请号：US15622481

    申请日：2017-06-14

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hideyuki SAKA ,  Yukihiro OKADA ,  Keiichi TAKAHASHI ,  Kaoru INOUE

    IPC: H01M10/42 ,  H01M2/34 ,  H01M4/36 ,  H01M10/0525 ,  H01M2/10 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0587

    CPC classification number: H01M10/4235 ,  H01M2/1077 ,  H01M2/345 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2200/20 ,  H01M2220/20

    Abstract: Provided is a lithium ion secondary battery which has a low internal resistance in a low-SOC region and a sufficiently large amount of gas generated during overcharge. The lithium ion secondary battery disclosed herein includes an electrode body having a positive electrode and a negative electrode, and a nonaqueous electrolytic solution. The lithium ion secondary battery further includes a pressure-type safety mechanism. The nonaqueous electrolytic solution includes a gas generating agent. The positive electrode has a positive electrode active material layer including a positive electrode active material. The positive electrode active material includes a lithium transition metal composite oxide represented by LiNiaCobMncO2 wherein a, b and c satisfy the following conditions: 0.35≦a≦0.45, 0.15≦b≦0.25, 0.35≦c≦0.45, and a+b+c=1, and a lithium transition metal composite oxide represented by LiNixCoyMnzO2 wherein x, y and z satisfy the following conditions: 0.35≦x≦0.45, 0.45≦y≦0.55, 0.05≦z≦0.15, and x+y+z=1, and the mass ratio of the oxides is 60:40 to 85:15.

    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    9.
    发明申请
    NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非水电解质二次电池

    公开(公告)号：US20150194664A1

    公开(公告)日：2015-07-09

    申请号：US14589414

    申请日：2015-01-05

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hideyuki SAKA ,  Hideaki FUJITA ,  Keiichi TAKAHASHI

    IPC: H01M4/136 ,  H01M4/13 ,  H01M10/0525 ,  H01M4/62

    CPC classification number: H01M4/136 ,  H01M4/131 ,  H01M4/362 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0587

    Abstract: Provided is a non-aqueous electrolyte secondary battery which exhibits excellent energy density and excellent input/output density (and especially output density in low SOC regions). This invention discloses a non-aqueous electrolyte secondary battery that includes a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode active material layers formed on the positive electrode current collector. The positive electrode active material layer has two regions that are demarcated in a surface direction of the positive electrode current collector, which are a first region 14a containing mainly a positive active material of lithium iron phosphate, and a second region 14b containing mainly a positive active material of a lithium-transition metal composite oxide.

    Abstract translation: 提供一种非水电解质二次电池，其表现出优异的能量密度和优异的输入/输出密度（特别是在低SOC区域中的输出密度）。 本发明公开了一种非水电解质二次电池，其包括正极，负极和非水电解质。 正极包括在正极集电体上形成的正极集电体和正极活性物质层。 正极活性物质层具有在正极集电体的表面方向上划分的两个区域，它们是主要含有磷酸铁锂的正极活性物质的第一区域14a和主要含有正极活性物质的第二区域14b 锂 - 过渡金属复合氧化物的材料。

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