NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY CELL USING IT

    公开(公告)号:JP2002100399A

    公开(公告)日:2002-04-05

    申请号:JP2000284790

    申请日:2000-09-20

    Applicant: UBE INDUSTRIES

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary cell with excellent cell characters such as cycle ability in a wide temperature range, an electric capacity and a storage property. SOLUTION: An electrolyte solution of electrolytes dissolved in a nonaqueous solvent comprises at least one of alkyne derivatives represented by the equation (I). R1 is either alkyl with a C number of 1 to 12, cycloalkyl with a C number of 3 to 6, aryl or hydrogen. R2 and R3 is independently either alkyl with C number of 1 to 12, cycloalkyl with C number of 3 to 6 or aryl. R2 and R3 may combine each other to form cycloalkyl with C number of 3 to 6. Y1 is either -COOR18, -COR18 or -SO2R18. The above R18 is independently either alkyl with C number of 1 to 12, cycloalkyl with C number of 3 to 6 or aryl. However, n is an integer of 1 or 2.

    ELECTROLYTE FOR LITHIUM SECONDARY CELL AND LITHIUM SECONDARY CELL USING IT

    公开(公告)号:JP2001313072A

    公开(公告)日:2001-11-09

    申请号:JP2000129073

    申请日:2000-04-28

    Applicant: UBE INDUSTRIES

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary cell having excellent cell characteristics such as cycle characteristics of the cell in a large temperature range, electric capacity, and a preservation characteristics. SOLUTION: In a non-aqueous electrolyte in which the electrolyte is dissolved in a non-aqueous solvent, the non-aqueous electrolyte contains at least one kind of alkyne carbonate derivative expressed with formula (1), and the lithium secondary cell uses the non-aqueous electrolyte. In the formula, R1, R2, R3, and R4 shows 1-12C alkyl group, 3-6C cyclo-alkyl group, allyl group, or hydrogen atom. Whereas, n shows the integer of 1 or 2.

    NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY USING THE SAME

    公开(公告)号:JP2001307766A

    公开(公告)日:2001-11-02

    申请号:JP2000115109

    申请日:2000-04-17

    Applicant: UBE INDUSTRIES

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery having improved battery characteristics including cycle characteristics, electric capacity and storage characteristics. SOLUTION: This nonaqueous electrolyte formed by dissolving an electrolyte in a nonaqueous solvent contains a disulfide derivative represented by Formula (I), R1-S-S-R2, where R1, R2 are independently phenyl, benzyl, tolyl, pyridyl, pyrimidy group, an alkyl group having the number of carbon atoms being 1 to 12 or a cycloalkyl group having the number of carbon atoms being 3 to 6. The content x of the derivative (% by weight) is 0.01

    ELECTROLYTIC SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING IT

    公开(公告)号:JP2000215910A

    公开(公告)日:2000-08-04

    申请号:JP1757699

    申请日:1999-01-26

    Applicant: UBE INDUSTRIES

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery having excellent battery characteristics such as a batter cycle characteristic, electric capacity and a storage characteristic. SOLUTION: In relation to an electrolytic solution wherein an electrolyte is dissolved in a nonaqueous solution, this electrolytic solution for a lithium secondary battery is characterized by including at least one kind of thiol salts expressed by the following general formula (I) in the electrolytic solution: R-S-M (I) (in the formula, R is a 1-15C alkyl group or 3-12C cycloalkyl group which may be substituted with one or more 1-4C alkyls, a 7-15C benzyl group which may be substituted with one or more 1-4C alkyls, or a 6-15C aryl group, and M is an alkaline metal. R may be substituted with one or more halogen atoms). This lithium secondary battery uses the electrolytic solution.

    1-SULFONYLPYRAZOLE DERIVATIVE AND ITS PRODUCTION

    公开(公告)号:JP2000128867A

    公开(公告)日:2000-05-09

    申请号:JP30352298

    申请日:1998-10-26

    Applicant: UBE INDUSTRIES

    Abstract: PROBLEM TO BE SOLVED: To obtain a new compound useful as an additive for electrolytic solutions, in which electrolytes are dissolved in nonaqueous solvents, used for enhancing cycle characteristics of battery and battery characteristics such as electric capacity or electric storage characteristic. SOLUTION: This compound is represented by formula I (R is methyl, ethyl, n-propyl, isopropyl, n-butyl or benzyl), e.g. 1-(1-propanesulfonyl)pyrazole. The compound of the formula is obtained by reacting, e.g. (A) pyrazole with (B) the corresponding sulfonic acid chloride derivative in an amount of 1.0-1.5 mol based on 1 mol of the component A in the presence of (C) a base (e.g. triethylamine) in an amount of 1.0-2.0 mol based on 1 mol of the component A in an organic solvent (e.g. dichloromethane) at a ratio of 10-60 pts.wt. to 1 pt. component A at -30 deg.C to 30 deg.C. The component B includes methanesulfonyl chlorxde, ethanesulfonyl chlorxde, 2propanesulfonyl chloride, etc.

    ELECTROLYTIC SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING SAME

    公开(公告)号:JPH11329494A

    公开(公告)日:1999-11-30

    申请号:JP13282998

    申请日:1998-05-15

    Applicant: UBE INDUSTRIES

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery excellent in battery characteristics such as cycle characteristics, electrical capacity, and preservation characteristics of the battery. SOLUTION: As this electrolytic solution for a lithium secondary battery, an eletrolytic solution having an electrolyte dissolved in a nonaqueous solvent is provided that contains a vinyl sulfone derivative expressed by the following general formula, (where, R is an alkyl group having the number of carbon atoms of 1 to 12, an alkenyl group having the number of carbon atoms of 1 to 12, or a cycloalkyl group having the number of carbon atoms of 3 to 6.), and a lithium secondary battery using this is also provided.

    ELECTROLYTIC SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING SAME

    公开(公告)号:JPH11329490A

    公开(公告)日:1999-11-30

    申请号:JP13529498

    申请日:1998-05-18

    Applicant: UBE INDUSTRIES

    Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery excellent in battery characteristics such as cycle characteristics, electrical capacity, and preservation characteristics of the battery. SOLUTION: As this electrolytic solution for a lithium secondary battery, an eletrolytic solution having an electrolyte dissolved in a nonaqueous solvent is provided that contains penta-fluoro-benzene derivatives containing electron- attractive substitution groups expressed by a general formula (where, Y stands for an ester group containing an alkyl group or aryl group having the number of carbon atoms of 1 to 12, an acyl group containing an alkyl group or aryl group having the number of carbon atoms of 1 to 12, or a tri-fluoromethyl group. A halogen atom may be substituted for at least one of hydrogen atoms of the alkyl group or aryl group.), and a lithium secondary battery using this is also provided.

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