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    2.
    发明专利
    未知

    公开(公告)号：DE69528563T2

    公开(公告)日：2003-05-22

    申请号：DE69528563

    申请日：1995-11-09

    Applicant: TORAY INDUSTRIES

    Inventor： TAKANISHI KEIJIRO ,  MATSUDA YOSHIO ,  TSUKAMOTO JUN

    IPC: C01G53/00 ,  H01M4/02 ,  H01M4/48 ,  H01M4/485 ,  H01M4/52 ,  H01M4/525 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/36 ,  H01M10/40 ,  H01M4/36

    Abstract: A cathode material for a lithium ion secondary battery, especially of the non-aqueous solvent type, comprises a compound of the formula Li1-X-aAXNi1-Y-bBYO2. wherein: A is at least one alkaline earth metal component and may be selected. from (1) at least two of magnesium, calcium, strontium and barium, (2) strontium alone and (3) barium alone; B is at least one transition metal element other than Ni; X is the total number of moles of A and if A consists of more than one alkaline earth metal element, then X is the total number of moles of all alkaline earth metal elements; Y is the total number of moles of B and if B consists of more than one transition metal element, then Y is the total number of moles of all transition metal elements; and X, Y, a and b satisfy the respective equations: A method of preparing the cathode material comprises the steps of: mixing a starting compound containing lithium and A with a starting compound containing nickel and B; heating the mixture in an oxidizing atmosphere.

    3.
    发明专利
    未知

    公开(公告)号：DE69528563D1

    公开(公告)日：2002-11-21

    申请号：DE69528563

    申请日：1995-11-09

    Applicant: TORAY INDUSTRIES

    Inventor： TAKANISHI KEIJIRO ,  MATSUDA YOSHIO ,  TSUKAMOTO JUN

    IPC: C01G53/00 ,  H01M4/02 ,  H01M4/48 ,  H01M4/485 ,  H01M4/52 ,  H01M4/525 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/36 ,  H01M10/40 ,  H01M4/36

    Abstract: A cathode material for a lithium ion secondary battery, especially of the non-aqueous solvent type, comprises a compound of the formula Li1-X-aAXNi1-Y-bBYO2. wherein: A is at least one alkaline earth metal component and may be selected. from (1) at least two of magnesium, calcium, strontium and barium, (2) strontium alone and (3) barium alone; B is at least one transition metal element other than Ni; X is the total number of moles of A and if A consists of more than one alkaline earth metal element, then X is the total number of moles of all alkaline earth metal elements; Y is the total number of moles of B and if B consists of more than one transition metal element, then Y is the total number of moles of all transition metal elements; and X, Y, a and b satisfy the respective equations: A method of preparing the cathode material comprises the steps of: mixing a starting compound containing lithium and A with a starting compound containing nickel and B; heating the mixture in an oxidizing atmosphere.

    NONAQUEOUS SECONDARY BATTERY
    7.
    发明专利
    NONAQUEOUS SECONDARY BATTERY 失效

    公开(公告)号：JPH1173997A

    公开(公告)日：1999-03-16

    申请号：JP23219897

    申请日：1997-08-28

    Applicant: TORAY INDUSTRIES

    Inventor： ADACHI MASAYA ,  MATSUDA YOSHIO ,  NAKAE TAKEJI

    IPC: H01M10/05 ,  H01M4/525 ,  H01M4/587 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0587 ,  H01M10/40 ,  H01M4/02 ,  H01M4/58

    Abstract: PROBLEM TO BE SOLVED: To provide a battery having high capacity, high output characteristic and good cycle characteristic, and high in safety. SOLUTION: In a nonaqueous secondary battery provided at least with an electrode body wound and laminated positive electrodes 2 and negative electrodes 1 via a separator material 3, and a battery can 5, conductive bodies 12 having the same electric potential as the positive electrodes 2 of the electrode body and the conductive bodies 13 having the same electric potential as the negative electrodes 1 are wound and laminated opposite to each other around one or more number of time via the separator material 3, and at least a portion of the separator material 3 is a mesh shaped material whose mesh roughness is 20 meshes or more and 200 mesh or less.

    NONAQUEOUS SECONDARY BATTERY
    8.
    发明专利
    NONAQUEOUS SECONDARY BATTERY 失效

    公开(公告)号：JPH1173996A

    公开(公告)日：1999-03-16

    申请号：JP23219797

    申请日：1997-08-28

    Applicant: TORAY INDUSTRIES

    Inventor： ADACHI MASAYA ,  MATSUDA YOSHIO ,  NAKAE TAKEJI

    IPC: H01M4/525 ,  H01M4/587 ,  H01M10/04 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0587 ,  H01M10/40 ,  H01M4/02

    Abstract: PROBLEM TO BE SOLVED: To facilitate short circuit and enhance safety by winding and laminating electrical conductors equipotential with a positive electrode and a negative electrode opposite to each other via a separator material once around or more, and interposing a conductive mesh between the rolled electrode body and a battery can. SOLUTION: A positive electrode 2 and a negative electrode 1 are rolled via a separator material 3 (about 10-100 μm thickness) to form an electrode body. On the outermost circumference of the electrode body, an electrical conductor 13 which is equipotential with the positive electrode 2 and an electrical conductor 12 at equipotential with the negative electrode 1 are wound and laminated opposite to each other via the separator material 3 once around or more. Further, a conductive mesh 14 is wound in the space with a battery can 5 through the separator material 3. The electrical conductivity of the conductive mesh 14 is preferably set to 10 Ω .cm or more, and a metallic mesh such as copper, stainless, or nickel-plated iron is preferably used. The conductive mesh 14 may be interposed between the positive electrode equipotential electrical conductor 13 and the separator material 3, and between the negative electrode equipotential electric conductor 12 and the separator material 3.

    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    9.
    发明专利
    NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效

    公开(公告)号：JPH09274934A

    公开(公告)日：1997-10-21

    申请号：JP8531396

    申请日：1996-04-08

    Applicant: TORAY INDUSTRIES

    Inventor： ADACHI MASAYA ,  MATSUDA YOSHIO ,  NAKAE TAKEJI

    IPC: H01M2/34 ,  H01M10/05 ,  H01M10/0566 ,  H01M10/0587 ,  H01M10/40 ,  H01M4/02

    Abstract: PROBLEM TO BE SOLVED: To generate outside short-circuiting before a current collector disposed inside is short-circuited due to a physical shock from the outside so as to prevent any breakage and firing of a battery by disposing insulative separate substance around a battery jar. SOLUTION: Insulative separate substance 13 is disposed around a battery jar 5 serving as a negative electrode terminal. On the substance 13, a conductor 14 of metallic material or carbonaceous material is laminated in contact with a portion of a battery cover 7. The separate substance 13 keeps insulation from the conductor 14, and rapidly brings the battery jar 5 and the conductor 14 into contact with each other in the case where the battery jar 5 receives a shock from the outside to such an extent to be deformed the battery jar 5. When a battery is exposed under high temperature, the separate substance 13 is fused, so that the battery jar 5 and the conductor 14 are brought into contact with each other, thereby releasing energy. Consequently, even if these is a physical shock to such an extent to deform the battery jar 5, outside short- circuiting is forcibly generated before a current collector disposed inside is short-circuited, thus reducing and preventing breakage and firing of the battery.

    ELECTRODE FOR BATTERY, AND SECONDARY BATTERY
    10.
    发明专利
    ELECTRODE FOR BATTERY, AND SECONDARY BATTERY 失效

    公开(公告)号：JPH0997611A

    公开(公告)日：1997-04-08

    申请号：JP25251895

    申请日：1995-09-29

    Applicant: TORAY INDUSTRIES

    Inventor： ADACHI MASAYA ,  NAKAE TAKEJI ,  MATSUDA YOSHIO

    IPC: H01M10/05 ,  H01M4/02 ,  H01M4/04 ,  H01M4/131 ,  H01M4/133 ,  H01M4/525 ,  H01M4/583 ,  H01M4/62 ,  H01M4/58 ,  H01M10/40

    Abstract: PROBLEM TO BE SOLVED: To provide an electrode for a battery with high adhesion of a binder with a current collector and capable of increasing the thickness of an electrode material by limiting each modulus of elasticity in bending, compression, and tension of binder resin. SOLUTION: A binder containing resin having a modulus of elasticity in bending of 1000MPa or less and/or modulus in compression of 500MPa or less and/or modulus of elasticity in tension of 500MPa or less is used in the binder of an electrode for a battery. The binder containing the resin increases the flexibility of the electrode and coating capability, and is especially effective when the electrode is spirally wound. Since the flexibility is increased, the thickness of the electrode can be increased, the filling amount of an active material is increased to increase the capacity. The content of the resin in the binder is 5% or more by weight, and the resin is preferable to be fluorine resin, especially polyhexafluoropropylene and/or a copolymer of vinylidene fluoride and hexafluoropropylene.

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