Nonaqueous electrolyte secondary battery

    公开(公告)号:US09660262B2

    公开(公告)日:2017-05-23

    申请号:US14427135

    申请日:2013-09-09

    Abstract: A positive electrode for a nonaqueous electrolyte secondary battery according to the present invention includes particles A of a lamellar type lithium transition metal oxide and particles B of a spinel type lithium transition metal oxide, as a positive active material, at a ratio within the range of A:B=20:80 to 80:20 (weight ratio), in which a particle size distribution of the positive active material has a peak based on the particles A and a peak based on the particles B within the range of 1 to 50 μm. In the integrated distribution curve of the particle diameter, a particle diameter A(D50) at a degree of accumulation of the particles A of 50% and a particle diameter B(D50) at a degree of accumulation of the particles B of 50% satisfy the following expression (1), and a particle diameter A(D95) at a degree of accumulation of the particles A of 95% and a particle diameter B(D5) at a degree of accumulation of the particles B of 5% satisfy the following expression (2): B(D50)−A(D50)≧5 μm  Expression (1) B(D5)>A(D95)  Expression (2).

    ENERGY STORAGE APPARATUS
    434.
    发明申请

    公开(公告)号:US20170084885A1

    公开(公告)日:2017-03-23

    申请号:US15261734

    申请日:2016-09-09

    CPC classification number: H01M2/1077

    Abstract: An energy storage apparatus includes: an energy storage device; an outer covering; a fastening member which fixes the energy storage device to the outer covering; and an adhesive element disposed between the energy storage device and the outer covering. The adhesive element fixes the energy storage device to the outer covering at a position different from a position where the fastening member fixes the energy storage device to the outer covering.

    Energy storage element
    436.
    发明授权

    公开(公告)号:US09601725B2

    公开(公告)日:2017-03-21

    申请号:US15056686

    申请日:2016-02-29

    Inventor: Hideki Masuda

    Abstract: An energy storage element includes a container that includes a container body including an opening and a cap part formed on the opening, an electrode assembly housed in the container, an electrode terminal, and a current collector which electrically connects the electrode terminal and the electrode assembly. The cap part of the container includes an outer surface including a protrusion part formed to protrude outward from the outer surface, and an inner surface including a recess part formed at a position corresponding to a position of the protrusion part.

    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    437.
    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:US20170077550A1

    公开(公告)日:2017-03-16

    申请号:US15122534

    申请日:2015-02-26

    Abstract: An object of the present invention is to provide a nonaqueous electrolyte secondary battery including a monofluorotoluene-containing nonaqueous electrolyte with an improved overcharge-preventing effect. In a monofluorotoluene-containing nonaqueous electrolyte, when a specific fluorophosphate compound is contained, the overcharge-preventing effect of the monofluorotoluene can be improved. As a result, in the overcharged state of a nonaqueous electrolyte secondary battery including the monofluorotoluene-containing nonaqueous electrolyte, an increase in the battery surface temperature can be suppressed.

    Abstract translation: 本发明的目的是提供一种具有改善的防过电效果的含有单氟甲苯的非水电解质的非水电解质二次电池。 在含有单氟甲苯的非水电解质中,当含有特定的氟磷酸盐化合物时,能够提高单氟甲苯的过充电防止效果。 结果,在含有含有一氟甲苯的非水电解质的非水电解质二次电池的过充电状态下,可以抑制电池表面温度的上升。

    NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERY, OUTER CASE FOR ALKALINE SECONDARY BATTERY AND ALKALINE SECONDARY BATTERY
    438.
    发明申请
    NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERY, OUTER CASE FOR ALKALINE SECONDARY BATTERY AND ALKALINE SECONDARY BATTERY 有权
    碱性二次电池阴极电极,碱性二次电池和碱性二次电池外壳

    公开(公告)号:US20170054142A1

    公开(公告)日:2017-02-23

    申请号:US15346295

    申请日:2016-11-08

    Abstract: Disclosed is a negative electrode for an alkaline secondary battery, which can suppress elution of iron to improve the long-period storage property of the battery capacity even under conditions in which elution of iron in a substrate into an electrolyte solution tends to occur, and which can also suppress lowering of initial capacity and increase in internal resistance. Even under conditions in which the elution of iron in the substrate into an electrolyte solution tends to occur, including a case where there is a thin conductive protecting layer at the surface or where the conductive protecting layer has defects, by adding magnesium or a magnesium compound to the negative electrode for an alkaline secondary battery (excluding the case where magnesium is contained as a constituent element of a hydrogen storage alloy), the elution of iron can be suppressed, and thereby, the long-period storage property of the battery capacity can be improved and the lowering of the initial capacity and the increase in internal resistance can be suppressed.

    Abstract translation: 公开了一种碱性二次电池用负极,即使在容易发生电解液中的基板中的铁的溶出的情况下,也能够抑制铁的洗脱,提高电池容量的长时间保存性, 也可以抑制初始容量的降低和内阻增加。 即使在容易发生基板中的铁溶解成电解质溶液的情况下,包括在表面具有薄的导电保护层或导电保护层具有缺陷的情况,通过加入镁或镁化合物 对于碱性二次电池用负极(不包含作为储氢合金的构成元素的镁的情况),可以抑制铁的洗脱,从而可以使电池容量的长时间保存性能 可以改善初始容量的降低和内阻的增加。

    ALKALINE STORAGE BATTERY
    440.
    发明申请
    ALKALINE STORAGE BATTERY 审中-公开
    碱性储存电池

    公开(公告)号:US20170033351A1

    公开(公告)日:2017-02-02

    申请号:US15214069

    申请日:2016-07-19

    Abstract: An alkaline storage battery contains: a positive electrode; a negative electrode containing, as an active material, at least one of a metal capable of forming a dendrite and a metal compound thereof; and an alkaline electrolyte. The alkaline electrolyte contains a compound which is a chain saturated hydrocarbon at least partially having a hydrophilic functional group other than a hydroxyl group and having a molecular weight of 400 or more and less than 220000 in an amount of less than 15 g per 100 mL of the electrolyte.

    Abstract translation: 碱性蓄电池包含:正极; 作为活性物质含有能够形成枝晶的金属及其金属化合物中的至少一种的负极, 和碱性电解质。 碱性电解质含有至少部分具有羟基以外的亲水性官能团,分子量为400以上且小于220000的链饱和烃的化合物,其量为小于15g / 100mL的 电解液。

Patent Agency Ranking