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1. 发明专利

JP2001266876A POSITIVE ELECTRODE ACTIVE MATERIAL AND NON-AQUEOUS ELECTROLYTE BATTERY AND MANUFACTURING METHOD OF THESE 失效
公开(公告)号：JP2001266876A
公开(公告)日：2001-09-28
申请号：JP2000077846
申请日：2000-03-15
申请人： SONY CORP , NIPPON KAGAKU SANGYO KK
发明人： YAMAHIRA TAKAYUKI , SATO ATSUSHI , YAMAMOTO YOSHIKATSU , KAJIMA HAJIME , SEKINE MASAKI
IPC分类号： H01M10/05 , H01M4/525 , H01M4/58 , H01M4/02 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a positive electrode active material and a non-aqueous electrolyte battery that realize high capacity and are excellent in preservation characteristics under high temperature environment. SOLUTION: The positive electrode active material contains a compound as expressed in the general formula LixNiyCzAl(1-y-z)O2 (wherein 0.05

2. 发明专利

JPH09312170A NON-AQUEOUS ELECTROLYTE BATTERY 失效
公开(公告)号：JPH09312170A
公开(公告)日：1997-12-02
申请号：JP15150996
申请日：1996-05-23
申请人： SONY CORP
发明人： YAMAHIRA TAKAYUKI
IPC分类号： H01M10/05 , H01M4/13 , H01M10/0567 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To restrict the generation of gas even in the abnormal overheat condition by adding nylon salt in the non-aqueous electrolyte or the positive and the negative electrode active materials. SOLUTION: This non-aqueous electrolyte secondary battery is formed by housing a wound body, which is obtained by winding a negative electrode formed by coating a negative electrode collector 9 with the negative electrode mix and drying it, a separator 3 and a positive electrode 2 formed by coating a positive electrode collector 10 with the positive electrode mix and drying it in the superposed condition, in a battery can 5, in which an insulating plate 4 is installed. After connecting a positive electrode 11 and a negative electrode 12, inside of the battery can 5 is filled with the non-aqueous electrolyte, and the battery can 5 is caulked through a gasket 6, and a battery lid 7, in which a current interrupting device 8 is installed, is fixed for conclusion. Nylon salt is added in the non-aqueous electrolyte or the positive and the negative electrode active material of this non-aqueous electrolyte battery. Added variable of the nylon salt is set at 0.1-5% by weight. As the nylon salt to be added, the salt having a melting point at 130 deg.C or more and less than 200 deg.C is desirable.

3. 发明专利

JPH09219188A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND MANUFACTURE OF IT 失效
公开(公告)号：JPH09219188A
公开(公告)日：1997-08-19
申请号：JP4803096
申请日：1996-02-08
申请人： SONY CORP
发明人： YAMAHIRA TAKAYUKI
IPC分类号： H01M4/62 , H01M4/131 , H01M4/133 , H01M4/1391 , H01M4/1393 , H01M10/05 , H01M10/0525 , H01M10/0569 , H01M4/02 , H01M4/04 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To improve the shelf life characteristic of electric discharge capacity, by coating respective powder surfaces of carbon material, capable of doping and dedoping the Li-containing composite oxide and Li ion of positive and negative electrode active material, by a resin protective coat, unsoluble for both the nonaqueous solvent of a nonaqueous electrolyte, and the binder resin dissolving solvent for an electrode fixture. SOLUTION: A negative electrode 1 is formed by using powder obtained by drying slurry, wherein PVDF and NMP are mixed in a negative electrode active material fine particle wherein a carbon material fine particle is dispersed in a water solution of PVA and then dried. A positive electrode active material fine particle can be obtained by dispersing a fine particle, obtained by powdering LiCo O2 wherein lithium carbonate and cobalt carbonate are mixed to be baked, and grapnite in the water solution of PVA to be dried. A positive electrode 2 is formed by using a positive electrode mixture powder, obtained by drying slurry wherein the PVDF and NMP are added to the fine particle. A separator 3 is interposed between the negative and positive electrodes 1 and 2, to be housed in a negative electrode battery can 4, into which an electrolyte is injected, and then to seal the battery can 4 by a sealing gasket 6. This can improve the shelf life characteristic of electric discharge capacity.

4. 发明专利

JPH09199112A NONAQUEOUS ELECTROLYTE SECONDARY CELL 失效
公开(公告)号：JPH09199112A
公开(公告)日：1997-07-31
申请号：JP2858396
申请日：1996-01-23
申请人： SONY CORP
发明人： YAMAHIRA TAKAYUKI
IPC分类号： H01M10/05 , H01M4/131 , H01M4/133 , H01M4/485 , H01M4/587 , H01M4/66 , H01M10/0566 , H01M4/02 , H01M4/04 , H01M4/58 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To improve cycle characteristics under a condition of high voltage and heavy load discharge. SOLUTION: This cell comprises a positive electrode 2 formed by coating a positive electrode current collector 11. With a positive electrode compound containing a positive electrode active material, negative electrode 1 formed by coating a negative electrode current collector 10 with a negative electrode compound containing a negative electrode active material, and a nonaqueous electrolyte. In this case, the positive electrode compound or negative electrode compound is mixed with an aluminum system coupling agent, or a surface of the positive or negative current collector 11 or 10 is pretreated by the aluminum system coupling agent.

5. 发明专利

JP2521909B2 失效
公开(公告)号：JP2521909B2
公开(公告)日：1996-08-07
申请号：JP9811786
申请日：1986-04-30
申请人： SONY CORP
发明人： NAGAURA TOORU , YAMAHIRA TAKAYUKI
IPC分类号： H01M4/40 , H01M4/50 , H01M10/05 , H01M10/052 , H01M10/0566

6. 发明专利

JPH07192775A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH07192775A
公开(公告)日：1995-07-28
申请号：JP32834693
申请日：1993-12-24
申请人： SONY CORP
发明人： YAMAHIRA TAKAYUKI
IPC分类号： H01M2/12 , H01M10/05 , H01M10/52 , H01M10/38
摘要： PURPOSE:To provide a nonaqueous secondary battery where the rise of inner pressure can be opened safely and moreover the noxious matter contained in ejected gas reduced and besides the ejection of solid substance such as fireworks, etc., suppressed by arranging a gas adsorber between a relief valve and a battery cover. CONSTITUTION:In an nonaqueous electrolyte secondary battery being equipped with a relief valve 7 inside a battery cover 6, a gas adsorber 11 is arranged between the relief valve 7 and the battery cover 6. As the gas adsorber, for example, synthetic zeolite, activated carbon, activated alumina, etc., can be cited. It is desirable that a film 8 (example: stainless net) having a mesh-shaped opening should be arranged between the relief valve 7 and the battery cover 6.

7. 发明专利

JPS62256368A LITHIUM-MANGANSE DIOXIDE SECONDARY BATTERY 失效
公开(公告)号：JPS62256368A
公开(公告)日：1987-11-09
申请号：JP9811786
申请日：1986-04-30
申请人： SONY CORP
发明人： NAGAURA TORU , YAMAHIRA TAKAYUKI
IPC分类号： H01M4/40 , H01M4/50 , H01M10/05 , H01M10/052 , H01M10/0566 , H01M10/40
摘要： PURPOSE:To increase charge-discharge cycle life by using an alloy of lithium and at least a kind of metal selected out of Al, Pb, Sn, Bi, or Cd as an anode material of an organic electrolyte battery in which MnO2 is used as a cathode material. CONSTITUTION:A battery consits of an anode comprising an alloy of lithium and at least a kind of metal selected out of Al, Pb, Sn, Bi, or Cd, and a cathode made of MnO2, and an organic electrolyte. This lithium alloy can take in the arbitrary amount of lithium and can release the arbitrary amount of lithium. As for such alloy materials, Li-Al alloy and Li-Pb alloy are typical and particularly Li-Al alloy shows good charge-discharge characteristics. In this Li-Al, the preferable content of lithium is 9-55atom%. As for the electrolyte, the nonaqueous organic electrolyte obtained by dissolving lithium salt as an electrolyte in an organic solvent is used.

8. 发明专利

JP2002246070A CHARGING METHOD FOR NONAQUEOUS ELECTROLYTE CELL 失效
公开(公告)号：JP2002246070A
公开(公告)日：2002-08-30
申请号：JP2001039098
申请日：2001-02-15
申请人： SONY CORP
发明人： IMOTO HIROSHI , MOTOMURA ISATO , YAMAMOTO YOSHIKATSU , YAMAHIRA TAKAYUKI , YOKOGAWA MASAAKI , KAMIYAMA ATSUSHI
IPC分类号： H01M10/05 , H01M4/02 , H01M4/36 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/44 , H01M4/58 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To enhance quick charging property. SOLUTION: When a nonaqueous electrolyte cell, provided with a positive electrode containing a positive electrode active material capable of doping lithium and preventing doping of lithium, a negative electrode containing a negative electrode active material capable of doping lithium and preventing doping of lithium, and nonaqueous electrolyte provided between the positive electrode and the negative electrode, is charged, charging is performed for a prescribed period of time, by a current value in the range of two times or longer and 3.5 times or shorter of the rated capacity value of the cell.

9. 发明专利

JP2001110406A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JP2001110406A
公开(公告)日：2001-04-20
申请号：JP28311799
申请日：1999-10-04
申请人： SONY CORP
发明人： YAMAHIRA TAKAYUKI
IPC分类号： H01M4/13 , H01M4/131 , H01M4/66 , H01M10/05 , H01M10/052 , H01M10/058 , H01M4/02 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery which has high capacity and shows superior cyclic characteristic. SOLUTION: A nonaqueous electrolyte secondary battery comprises a negative electrode 2, which has a support body containing a metal that is hard to be alloyed with lithium, a positive electrode 3 which contains lithium, and a nonaqueous electrolyte.

10. 发明专利

JPH11204094A NON-AQUEOUS ELECTROLYTIC BATTERY 失效
公开(公告)号：JPH11204094A
公开(公告)日：1999-07-30
申请号：JP701798
申请日：1998-01-16
申请人： SONY CORP
发明人： YAMAHIRA TAKAYUKI , IDA KATSU
IPC分类号： H01M2/12 , H01M2/34 , H01M10/44 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a non-aqueous electrolytic battery excellent in safety and mass productivity. SOLUTION: This non-aqueous electrolytic battery comprises and electric current shut-off means for shutting off electric current at the time when the battery internal pressure reaches a shutting-off pressure and a rupturing means for releasing the battery internal pressure at the time when the battery internal pressure reaches the rupturing pressure and the rupturing pressure is set to be higher than the shutting-off pressure. The electric current shut-off means is closed from the outside by an insulating part and when the battery inner pressure exceeds the shutting-off pressure, a first rupturing valve 6 constituting a part of an electric continuity route is ruptured to shut off the electric continuity route and the rupturing means releases the battery internal pressure directly to the outside by rupturing a second rupturing valve 7 when the internal pressure reaches the rupturing pressure.

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