Solid electrolyte cell
    1.
    发明授权
    Solid electrolyte cell 失效
    固体电解质电池

    公开(公告)号:US06753113B2

    公开(公告)日:2004-06-22

    申请号:US09803561

    申请日:2001-03-09

    IPC分类号: H01M618

    摘要: A solid electrolyte cell in which oxidative decomposition of electrolyte components is suppressed to maintain the superior cell performance. The solid electrolyte includes a negative electrode 9 having a negative electrode current collector 7 and a negative electrode active material 8, a positive electrode 12 having a positive electrode current collector 10 and a positive electrode active material 11 and a solid electrolyte 13 arranged between the negative electrode 9 and the positive electrode 12 and which is comprised of an electrolyte salt dispersed in a matrix polymer. A diene compound is contained in at least one of the positive electrode 12 and the solid electrolyte 13.

    摘要翻译: 其中抑制了电解质成分的氧化分解以维持优异的电池性能的固体电解质电池。 固体电解质包括具有负极集电体7和负极活性物质8的负极9,具有正极集电体10的正极12和正极活性物质11以及负极活性物质13之间的固体电解质13 电极9和正电极12,其由分散在基质聚合物中的电解质盐组成。 二烯化合物包含在正极12和固体电解质13中的至少一个中。

    Charging method for charging nonaqueous electrolyte secondary battery

    公开(公告)号:US06534957B2

    公开(公告)日:2003-03-18

    申请号:US09859058

    申请日:2001-05-16

    IPC分类号: H01M1044

    摘要: An initial charging operation is carried out by a charging step composed of two-stages or more to improve an initial charging and discharging efficiency, reduce the charge of wasteful materials and improve a high capacity and a high cyclic characteristic without deteriorating various kinds of battery properties. In order to realize the improvements, a nonaqueous solvent which is decomposed under a potential higher than the reduction and decomposition potential of a main solvent is included in electrolyte. This charging method is a method for achieving the addition effect of such a nonaqueous solvent as much as possible. As a specific means, the electrolyte to which vinylene carbonate is added is employed and a constant-current and constant-voltage charge under about 3.2 V is carried out for 1 to 2 hours before a battery is completely charged. Thus, a good coat can be formed on the surface of an anode while suppressing the quantity of electricity required for forming the coat.

    Gel electrolyte and gel electrolyte cell
    4.
    发明授权
    Gel electrolyte and gel electrolyte cell 有权
    凝胶电解质和凝胶电解质电池

    公开(公告)号:US06509123B1

    公开(公告)日:2003-01-21

    申请号:US09672881

    申请日:2000-09-28

    IPC分类号: H01M618

    摘要: The present invention provides a gel electrolyte cell including a non-aqueous electrolytic solution containing lithium-containing electrolyte salt solved in a non-aqueous solvent and made into a gel state by a matrix polymer, and the gel electrolyte contains vinylene carbonate or derivative thereof in the amount not less than 0.05 wt % and not greater than 5 wt %. This gel electrolyte exhibits an excellent chemical stability with the negative electrode, strength, and liquid-retention characteristic. This gel electrolyte enables to obtain a gel electrolyte cell satisfying the cell capacity, cycle characteristic, load characteristic, and low-temperature characteristic.

    摘要翻译: 本发明提供一种凝胶电解质电池,其包含溶解在非水溶剂中的含锂电解质盐的非水电解液,并由基质聚合物形成凝胶态,凝胶电解质含有碳酸亚乙烯酯或其衍生物 该量不小于0.05wt%且不大于5wt%。 该凝胶电解质具有优异的化学稳定性与负极,强度和保液性。 该凝胶电解质能够得到满足电池容量,循环特性,负载特性和低温特性的凝胶电解质电池。

    Nonaqueous electrolyte and nonaqueous electrolyte battery
    5.
    发明授权
    Nonaqueous electrolyte and nonaqueous electrolyte battery 有权
    非水电解液和非水电解质电池

    公开(公告)号:US06984471B2

    公开(公告)日:2006-01-10

    申请号:US10194722

    申请日:2002-07-12

    IPC分类号: H01M6/16

    摘要: A nonaqueous electrolyte has electrolyte salt dissolved in a nonaqueous solvent, wherein the ratio of the nonaqueous solvent having a ring structure is 50 wt % or more in all nonaqueous electrolyte solution components and the nonaqueous solvent includes at least one or more kinds of halogenated solvents expressed by a below-described general formula (1). (Here, at least one of R1 and R2 designates an alkyl group having the number of carbons of 4 or larger and at least one of them is a halogenated alkyl group). Thus, the decomposition of the halogenated solvent is suppressed.

    摘要翻译: 非水电解液具有溶解在非水溶剂中的电解质盐,其中,在所有非水电解液成分中,具有环结构的非水溶剂的比例为50重量%以上,非水溶剂包含至少一种以上表示的卤化溶剂 通过下述通式(1)。 (这里,R 1和R 2中的至少一个表示碳原子数为4以上的烷基,其中至少一个为卤代烷基 )。 因此,可以抑制卤化溶剂的分解。

    Gel electrolyte and nonaqueous electrolyte battery
    6.
    发明授权
    Gel electrolyte and nonaqueous electrolyte battery 有权
    凝胶电解质和非水电解质电池

    公开(公告)号:US06815124B2

    公开(公告)日:2004-11-09

    申请号:US09879753

    申请日:2001-06-12

    IPC分类号: H01M614

    摘要: A gel electrolyte in which nonaqueous electrolyte solution obtained by dissolving electrolyte salt containing Li in a nonaqueous solvent is gelled by a matrix polymer including a copolymer as a main component which contains vinylidene fluoride as a monomer unit. The copolymer employed as the matrix polymer is carboxylic acid modified polyvinylidene fluoride into which a structure formed by esterifying a part or all of a carboxyl group, a carboxylic acid or an acetic anhydride structure is introduced. The carboxylic acid modified polyvinylidene fluoride can dissolve and retain therein a solvent of low viscosity having a low boiling point. Therefore, the carboxylic acid modified polyvinylidene fluoride is used as a matrix polymer to improve the ionic conductivity of the gel electrolyte at low temperature. Thus, a low temperature characteristic is improved and a cyclic characteristic and a load characteristic are also improved.

    摘要翻译: 其中通过将含有Li的电解质盐溶解在非水溶剂中而获得的非水电解质溶液由包含以共轭物作为主要成分的基质聚合物凝胶化,所述共聚物包含偏二氟乙烯作为单体单元。 用作基体聚合物的共聚物是羧酸改性的聚偏二氟乙烯,其中引入通过酯化羧基,羧酸或乙酸酐结构部分或全部而形成的结构。 羧酸改性的聚偏二氟乙烯可溶解并保留具有低沸点的低粘度溶剂。 因此,羧酸改性聚偏二氟乙烯用作基质聚合物,以改善凝胶电解质在低温下的离子导电性。 因此,提高了低温特性,并且还提高了循环特性和负载特性。

    Negative electrode comprising vapor grown carbon fiber and polymer materials and nonaqueous electrolyte secondary battery
    8.
    发明授权
    Negative electrode comprising vapor grown carbon fiber and polymer materials and nonaqueous electrolyte secondary battery 有权
    包含气相生长碳纤维和聚合物材料和非水电解质二次电池的负电极

    公开(公告)号:US08603673B2

    公开(公告)日:2013-12-10

    申请号:US12753237

    申请日:2010-04-02

    申请人: Mashio Shibuya

    发明人: Mashio Shibuya

    IPC分类号: H01M4/13 H01M4/62

    摘要: A nonaqueous electrolyte secondary battery includes a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein the negative electrode has a negative electrode mixture layer including a negative electrode active material; a polymer containing vinylidene fluoride as a repeating unit; a polymer containing acrylonitrile as a repeating unit; and a vapor-grown carbon fiber; and the nonaqueous electrolyte contains a fluorocarbon based polymer compound.

    摘要翻译: 非水电解质二次电池包括正极; 负极; 和非水电解质,其中所述负极具有包含负极活性物质的负极合剂层; 含有偏二氟乙烯作为重复单元的聚合物; 含有丙烯腈作为重复单元的聚合物; 和气相生长碳纤维; 非水电解质含有碳氟化合物系高分子化合物。

    NEGATIVE ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME
    9.
    发明申请
    NEGATIVE ELECTRODE, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME 有权
    负极和非水电解质二次电池

    公开(公告)号:US20080057401A1

    公开(公告)日:2008-03-06

    申请号:US11844634

    申请日:2007-08-24

    IPC分类号: H01M4/38 H01M10/40

    摘要: A negative electrode for a non-aqueous electrolyte secondary battery is provided. The negative electrode includes: an electro-conductive base; a first layer provided on the electro-conductive base; and a second layer provided on the first layer. The first layer includes at least a graphitic material as a negative active material. The second layer includes at least a non-graphitizable carbonaceous material as a negative active material.

    摘要翻译: 提供了一种非水电解质二次电池用负极。 负极包括:导电性基体; 设置在所述导电性基材上的第一层; 以及设置在第一层上的第二层。 第一层至少包含作为负极活性物质的石墨材料。 第二层包括至少一种不可石墨化的含碳材料作为负极活性物质。