NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

    公开(公告)号:US20220336795A1

    公开(公告)日:2022-10-20

    申请号:US17640271

    申请日:2020-07-30

    摘要: A non-aqueous electrolyte secondary battery that is an exemplary embodiment of the present invention, wherein a positive electrode contains a lithium-transition metal composite oxide containing Ni, Al and Sr as a positive electrode active substance. In the lithium-transition metal composite oxide, the content of Ni is 80-95 mol %, the content of Al is 8.0 mol % or less, the content of Sr is 1.2 mol % or less, and the proportion of metallic elements other than Li that are present in a Li layer is 0.5-2.0 mol %. A negative electrode has a Sr-containing coating film formed on a surface of a negative electrode mixture layer. The content of Sr in the coating film is 20-400 ppm relative to the total mass of the negative electrode mixture layer and the coating film.

    NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES
    3.
    发明申请

    公开(公告)号:US20170155145A1

    公开(公告)日:2017-06-01

    申请号:US15322594

    申请日:2015-09-07

    摘要: A nonaqueous electrolyte secondary battery that releases a reduced amount of gas when stored in a highly charged state at high temperatures, including a positive electrode containing a positive electrode active material capable of storing and releasing lithium ions, a negative electrode containing a negative electrode active material capable of storing and releasing lithium ions, and a nonaqueous electrolyte, wherein the positive electrode active material includes secondary particles formed by the aggregation of primary particles including a lithium transition metal oxide containing lithium, cobalt, nickel, manganese and aluminum, the secondary particles have on the surface thereof a recess formed between the primary particles adjacent to one another and a compound containing boron and oxygen is attached to the recess, and the proportion of cobalt in the lithium transition metal oxide is not less than 80 mol % relative to the total molar amount of the metal elements except lithium.

    POSITIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    6.
    发明申请
    POSITIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非电解电解质二次电池的正极活性物质

    公开(公告)号:US20170012289A1

    公开(公告)日:2017-01-12

    申请号:US15119282

    申请日:2015-02-13

    摘要: A positive electrode active material for nonaqueous electrolyte secondary batteries is provided with which increased DCR after cycling can be controlled. A positive electrode active material according to an aspect of the present invention is secondary particles of a lithium transition metal oxide formed through the aggregation of primary particles of the oxide, the lithium transition metal oxide containing at least Ni. Secondary particles of a rare earth compound formed through the aggregation of particles of the rare earth compound are adhering to depressions each created between adjacent two of the primary particles on the surfaces of the secondary particles. The secondary particles of the rare earth compound are adhering to both of the two adjacent primary particles at the depressions.

    摘要翻译: 提供了一种用于非水电解质二次电池的正极活性物质,其可以控制循环后增加的DCR。 根据本发明的一个方面的正极活性物质是通过氧化物的一次粒子,至少含有Ni的锂过渡金属氧化物的聚集而形成的锂过渡金属氧化物的二次粒子。 通过稀土化合物的颗粒聚集而形成的稀土化合物的二次颗粒附着在二次颗粒表面上相邻的两个初级颗粒之间产生的凹陷。 稀土化合物的二次颗粒在凹陷处附着在两个相邻的一次颗粒上。

    POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    7.
    发明申请
    POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    非电解电解质二次电池和非电解电解质二次电池的正极

    公开(公告)号:US20170005333A1

    公开(公告)日:2017-01-05

    申请号:US15125881

    申请日:2015-03-12

    摘要: A positive electrode for nonaqueous electrolyte secondary batteries and a nonaqueous electrolyte secondary battery are provided with which loss of initial efficiency can be limited even if a positive electrode exposed to air is used. An aspect of a positive electrode according to the present invention for nonaqueous electrolyte secondary batteries is a positive electrode for nonaqueous electrolyte secondary batteries incorporating a lithium transition metal oxide, wherein the positive electrode for nonaqueous electrolyte secondary batteries contains a tungsten compound and a boron compound. It is particularly preferred that the tungsten compound be a tungsten-containing oxide.

    摘要翻译: 提供了一种用于非水电解质二次电池和非水电解质二次电池的正电极,即使使用暴露于空气中的正极,也可以限制初始效率的损失。 本发明的非水电解质二次电池用正极的一个方面是含有锂过渡金属氧化物的非水电解质二次电池用正极,其中,所述非水电解质二次电池用正极含有钨化合物和硼化合物。 特别优选钨化合物为含钨氧化物。

    POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME
    8.
    发明申请
    POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME 审中-公开
    用于非水电解质二次电池的正极电极活性材料和使用其的非电解电解质二次电池

    公开(公告)号:US20160197348A1

    公开(公告)日:2016-07-07

    申请号:US14911089

    申请日:2014-09-11

    摘要: A positive electrode active material for a nonaqueous electrolyte secondary battery having excellent low-temperature output characteristics and a nonaqueous electrolyte secondary battery using the same are provided. According to an aspect of the positive electrode active material for a nonaqueous electrolyte secondary battery of the present invention, a compound containing a rare earth element and a compound containing lithium and fluorine are attached to a surface of a positive electrode active material formed of a lithium transition metal oxide. The compound containing a rare earth element attached to the surface of the positive electrode active material is preferably at least one selected from a hydroxide, an oxyhydroxide, a phosphate compound, a carbonate compound, and an oxide.

    摘要翻译: 提供一种具有优异的低温输出特性的非水电解质二次电池用正极活性物质和使用其的非水电解质二次电池。 根据本发明的非水电解质二次电池用正极活性物质的一个方面,将含有稀土元素的化合物和含有锂和氟的化合物附着在由锂形成的正极活性物质的表面 过渡金属氧化物。 含有连接到正极活性物质表面的稀土元素的化合物优选为选自氢氧化物,羟基氧化物,磷酸盐化合物,碳酸盐化合物和氧化物中的至少一种。

    POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    9.
    发明申请
    POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 审中-公开
    用于非电解电解质二次电池的正电极,用于制造非电解电解质二次电池的正电极的方法和非电解电解质二次电池

    公开(公告)号:US20160056469A1

    公开(公告)日:2016-02-25

    申请号:US14780255

    申请日:2014-03-25

    IPC分类号: H01M4/62 H01M4/04 H01M10/052

    摘要: A positive electrode for a nonaqueous electrolyte secondary battery, the positive electrode being configured so that even if the potential of the positive electrode is set to a high potential, degradation of cycle characteristics is suppressed. A positive electrode for a nonaqueous electrolyte secondary battery, which has a positive electrode plate in which a positive electrode mixture layer containing a positive electrode active material which occludes and releases Li, a binder, and an electrically conductive agent is formed on a positive electrode collector, and in this positive electrode, a compound containing at least one element selected from W, Al, Mg, Ti, Zr, and a rare earth element is adhered to all the surfaces of at least a part of the positive electrode active material, at least a part of the binder, and at least a part of the electrically conductive agent, each of which is contained in the positive electrode mixture layer.

    摘要翻译: 作为非水电解质二次电池用正极,正极构成为即使将正极的电位设定为高电位,也能够抑制循环特性的劣化。 一种非水电解质二次电池用正极,其具有在正极集电体上形成有正极板,其中含有吸藏并释放Li的正极活性物质的正极合剂层,粘合剂和导电剂 在该正极中,含有选自W,Al,Mg,Ti,Zr,稀土元素中的至少一种元素的化合物附着在正极活性物质的至少一部分的全部表面上 至少一部分粘合剂,以及导电剂的至少一部分,其中每一个都包含在正极混合物层中。

    POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
    10.
    发明申请
    POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 有权
    非水电解质二次电池和非水电解质二次电池的正极

    公开(公告)号:US20150056512A1

    公开(公告)日:2015-02-26

    申请号:US14387359

    申请日:2013-01-31

    摘要: An object is to provide a positive electrode for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery that allow a high output characteristic. Included are a positive electrode collector and a positive electrode mixture layer formed on at least one surface of the positive electrode collector. The positive electrode mixture layer contains particles 3 of lithium nickel cobalt manganese oxide represented by LiNi0.55Co0.20Mn0.25O2, erbium oxyhydroxide 1 fixed on the surfaces of the particles of the lithium nickel cobalt manganese oxide 3, tungsten trioxide 2 adhering to the surfaces of the particles of the lithium nickel cobalt manganese oxide 3, and a binder.

    摘要翻译: 本发明的目的是提供一种能够实现高输出特性的非水电解质二次电池和非水电解质二次电池用正极。 包括在正极集电体的至少一个表面上形成的正极集电体和正极合剂层。 正极合剂层含有由LiNi0.55Co0.20Mn0.25O2表示的锂镍钴锰氧化物的颗粒3,固定在锂镍钴锰氧化物3的颗粒表面的羟基氧化铒1,附着在表面上的三氧化钨2 的锂镍钴锰氧化物3的颗粒和粘合剂。