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    NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY USING THE SAME
    45.
    发明专利
    NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY USING THE SAME 审中-公开

    公开(公告)号：JP2004006401A

    公开(公告)日：2004-01-08

    申请号：JP2003274345

    申请日：2003-07-14

    Applicant: UBE INDUSTRIES

    Inventor： HAMAMOTO SHUNICHI ,  ABE KOJI ,  MATSUMORI YASUO

    IPC: H01M10/05 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/40

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery excellent in battery cycle characteristic and such battery characteristics as electric capacity and charge storing characteristics. SOLUTION: A nonaqueous electrolyte has an electrolyte dissolved in a nonaqueous solvent. The nonaqueous electrolyte contains tert-butylbenzene or its inducer. It is used for manufacturing a lithium secondary battery of which a discharge capacity maintenance ratio is at least 90.1% after fifty cycles of charging/discharging operation in which charging is performed for five hours until a final voltage 4.2V with a constant current and constant voltage at 20°C and then discharging is performed until a final voltage 2.7V with the constant current. The lithium secondary battery contains the nonaqueous electrolyte. COPYRIGHT: (C)2004,JPO

    NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING THE SAME
    47.
    发明专利
    NONAQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY USING THE SAME 失效

    公开(公告)号：JP2002134167A

    公开(公告)日：2002-05-10

    申请号：JP2000321146

    申请日：2000-10-20

    Applicant: UBE INDUSTRIES

    Inventor： ABE KOJI ,  UEKI AKIRA ,  HAMAMOTO SHUNICHI

    IPC: H01M10/05 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/40

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery, having superior battery characteristics such as a cycle characteristics, electric capacity, and storage characteristics of a battery. SOLUTION: This nonaqueous electrolyte solution, having an electrolyte dissolved in a nonaqueous solvent, contains 0.001 to 5% by weight of at least one of disulfide derivatives, such as bis(4-methoxyphenyl)disulfide, and 0.01 to 10% by weight of at least one selected from among a compound group A, consisting of methyl 2-propynyl carbonate, methanesulfonic acid 2-propynyl, 1,3-propane sultone, divinyl sulfone and 1,4-butanediol dimetane sulfonate. The lithium secondary battery uses this nonaqueous electrolytic solution.

    NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY CELL USING THE SAME
    50.
    发明专利
    NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY CELL USING THE SAME 失效

    公开(公告)号：JP2001155767A

    公开(公告)日：2001-06-08

    申请号：JP33970399

    申请日：1999-11-30

    Applicant: UBE INDUSTRIES

    Inventor： HAMAMOTO SHUNICHI ,  ABE KOJI ,  TAKAI TSUTOMU

    IPC: H01M10/05 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/40

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary cell which has excellent cell characteristics such as a cycle characteristic, an electric capacity or charging maintenance characteristic and excellent safety. SOLUTION: A non-aqueous electrolyte dissolves an electrolytic salt in a non-aqueous solvent, wherein an octane derivative represented by a following formula I is contained in the non-aqueous electrolyte: where, R1 represents alkyl group of 1-6 carbon atoms, alkenyl group of 2-6 carbon atoms, alkynyl group of 2-6 carbon atoms cycloalkyl group of 3-6 carbon atoms or aryl group. R2 represents alkyl group of 1-6 carbon atoms, alkenyl group of 2-6 carbon atoms, alkynyl group of 2-6 carbon atoms cycloalkyl group of 3-6 carbon atoms, aryl group, acyl group of 2-10 carbon atoms alkanesulfonyl group of 1-6 carbon atoms, arylsulfonyl group of 6-10 carbon atoms or ester group of 2-10 carbon atoms. Also, the lithium secondary cell using the non-aqueous electrolyte is provided.

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