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11. 发明专利

JPH08102322A ACTIVE MATERIAL POWDER FOR ALKALINE STORAGE BATTERY NON-SINTERED NICKEL ELECTRODE, ITS MANUFACTURE, ALKALINE STORAGE BATTERY NON-SINTERED NICKEL ELECTRODE, AND ITS MANUFACTURE 失效
公开(公告)号：JPH08102322A
公开(公告)日：1996-04-16
申请号：JP21986695
申请日：1995-08-04
申请人： SANYO ELECTRIC CO
发明人： YANO MUTSUMI , NOGAMI MITSUZO , NIIYAMA KATSUHIKO , KONNO YOSHITO , NISHIO KOJI , SAITO TOSHIHIKO
IPC分类号： H01M4/52 , C01G53/04 , H01M4/32
摘要： PURPOSE: To suppress diffusion of cobalt hydroxide into a nickel hydroxide particle by covering the surface of a solid solution particle containing nickel hydroxide as the main component with a mixed crystal of a hydroxide of a specified metal and cobalt hydroxide. CONSTITUTION: The surface of a nickel hydroxide particle or solid solution particle is covered with a mixed crystal of magnesium hydroxide or zinc hydroxide and cobalt hydroxide. 0.5-50wt.% magnesium hydroxide and/or zinc hydroxide converted in metallic magnesium and zinc based on the total weight of cobalt, magnesium and/or zinc in the mixed crystal is contained in the mixed crystal. If the content is less than 0.5wt.%, diffusion of cobalt hydroxide into the active material is not effectively suppressed. If the contend exceeds 50wt.%, conductivity is decreased and a battery with high capacity cannot obtained.

12. 发明专利

JPH0878054A NONAQUEOUS ELECTROLYTIC SECONDARY BATTERY 失效
公开(公告)号：JPH0878054A
公开(公告)日：1996-03-22
申请号：JP23206194
申请日：1994-08-31
申请人： SANYO ELECTRIC CO
发明人： UEHARA MAYUMI , SHOJI YOSHIHIRO , YAMAZAKI MIKIYA , NISHIO KOJI , SAITO TOSHIHIKO
IPC分类号： H01M10/05 , H01M4/525 , H01M10/40 , H01M4/02 , H01M4/58
摘要： PURPOSE: To obtain a nonaqueous secondary battery with less decomposition or degradation of a nonaqueous electrolyte and excellent cycle characteristics by using aluminum powder and/or tantalum powder as an inductive agent of a positive pole. CONSTITUTION: A negative pole 2 is made of a substance capable of adsorbing and discharging an lithium ion or metal lithium as a negative pole substance. A litium-transient metal compound oxide is a positive pole active substance expressed by a composite expression Lix Ni1 -yCoy Oz (0

13. 发明专利

JPH0878052A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JPH0878052A
公开(公告)日：1996-03-22
申请号：JP23834294
申请日：1994-09-05
申请人： SANYO ELECTRIC CO
发明人： SHOJI YOSHIHIRO , UEHARA MAYUMI , KIDA YOSHINORI , YAMAZAKI MIKIYA , YAMAMOTO YUJI , NISHIO KOJI , SAITO TOSHIHIKO
IPC分类号： C01B31/02 , C01B31/04 , H01M4/525 , H01M4/587 , H01M10/05 , H01M10/056 , H01M10/0569 , H01M10/40 , H01M4/02
摘要： PURPOSE: To obtain a lithium secondary battery with its great discharge capacity per unit weight of a carbonic substance of the negative pole and its excellent cycle characteristics at a high temperature by using a mixed solvent comprising a specific nonannular carbonate ester, a specific compound including ion, and ethylene carbonate as a solvent. CONSTITUTION: At least one kind of nonannular carbonate ester is selected from among a group comprising a diethyl carbonate, dimethyl carbonate, methylethyl carbonate, methylpropyl carbonate, and methyl isopropyl carbonate. Further, at least one kind of compound containing sulfur is selected from among tetramethylenesulfoxide, sulfone expressed by expression I and sulfoxide expressed by expression II, and sulforane and sulforane inductive body expressed by expression III. Further, a mixed solvent comprises an ethylene carbonate.

14. 发明专利

JPH0864239A NONAQUEOUS ELECTROLYTE BATTERY 失效
公开(公告)号：JPH0864239A
公开(公告)日：1996-03-08
申请号：JP22592594
申请日：1994-08-25
申请人： SANYO ELECTRIC CO
发明人： SHOJI YOSHIHIRO , UEHARA MAYUMI , NISHIO KOJI , SAITO TOSHIHIKO
IPC分类号： H01M6/16 , H01M10/05 , H01M10/0569 , H01M10/40
摘要： PURPOSE: To provide a nonaqueous electrolyte battery in which heavy-current can be taken out at a low temperature and large discharging capacity at a low temperature is provided. CONSTITUTION: In a nonaqueous electrolyte battery provided with a positive electrode, a nagative electrode using lithium as an active material, nonaqueous electrolyte, and a separator, solution prepared by dissolving trifluoromethane lithium sulfonate in mixed solvent practically consisting of ethylene carbonate, diethyl carbonate, and/or dimethyl carbonate is used for the nonaqueous electrolyte. In this way, the nonaqueous electrolyte is composed of the specific mixed solvent and the specific solute, so that a coating film is hardly formed on the surface of the negative electrode, and resistance of the boundary face between the surface of the negative electrode and the nonaqueous electrolyte is reduced.

15. 发明专利

JPH0864237A NONAQUEOUS ELECTROLYTE BATTERY 失效
公开(公告)号：JPH0864237A
公开(公告)日：1996-03-08
申请号：JP22592394
申请日：1994-08-25
申请人： SANYO ELECTRIC CO
发明人： UEHARA MAYUMI , SHOJI YOSHIHIRO , NISHIO KOJI , SAITO TOSHIHIKO
IPC分类号： H01M6/16 , H01M10/05 , H01M10/0569 , H01M10/40
摘要： PURPOSE: To provide a nonaqueous electrolyte battery in which self-discharge hardly occurs in the case of storage under a charging condition and an excellent storage property is provided by adding the specific lithium salt in nonaqueous electrolyte. CONSTITUTION: A nonaqueous electrolyte battery Al is provided with a positive electrode, a negative electrode using lithium as active material, nonaqueous electrolyte in which LiPF6 is dissolved in mixed solvent consisting of 10-90% by volume of cyclic carbonic ester and 90-10% by volume of chain carbonic ester, and a separator 3. The nonaqueous electrolyte contains at least one kind of lithium salt selected from a group consisting of LiBF4 , LiClO4 , LiCF3 SO3 , and LiN(CF3 SO2 )2 .

16. 发明专利

JPH0831421A NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH0831421A
公开(公告)日：1996-02-02
申请号：JP18637494
申请日：1994-07-15
申请人： SANYO ELECTRIC CO
发明人： YAMAMOTO YUJI , SHOJI YOSHIHIRO , NISHIO KOJI , SAITO TOSHIHIKO
IPC分类号： H01M10/05 , H01M4/505 , H01M4/58 , H01M4/02 , H01M10/40
摘要： PURPOSE:To obtain the non-aqueous electrolyte secondary battery, which has the excellent charge and discharge cycle characteristic, by using Mg included Li.Mn compound oxide, which has LiMnO2, crystal phase, as the positive electrode active material. CONSTITUTION:In a non-aqueous electrolyte secondary battery provided with a positive and a negative electrodes on the surface and the back surface of a separator dipped with the non-aqueous electrolyte, as the positive electrode active material, Mg included Li.Mn compound oxide, which has the LiMnO2 crystal phase, is used. As the Mg included Li.Mn compound oxide, the compound oxide having at least one crystal phase of MgMn2O4, Mg6MnO6, and Mg2MnO4 is desirable. Inclusion ratio of Mg and Mn in this compound oxide is desirably exists within a range at 0.03-0.25 of atomic ratio. This compound oxide is obtained by mixing the raw material such as oxide of Li, Mg, Mn at the predetermined ratio, and burning it at 400-1350 deg.C in the on-oxidation atmosphere. Elusion of Mn from the LiMnO2, crystal phase at the time of charge is thereby hard to be generated, and lowering of the discharging capacity with the progress of the charge and discharge cycle is reduced.

17. 发明专利

JPH0831413A HYDROGEN STORAGE ALLOY ELECTRODE FOR SEALED ALKALINE STORAGE BATTERY AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0831413A
公开(公告)日：1996-02-02
申请号：JP18637394
申请日：1994-07-15
申请人： SANYO ELECTRIC CO
发明人： KONNO YOSHITO , NOGAMI MITSUZO , NISHIO KOJI , SAITO TOSHIHIKO
IPC分类号： H01M4/62 , H01M4/24 , H01M4/26
摘要： PURPOSE:To provide an excellent balance of the gas absorbing characteristic and the charging and discharging characteristic by replacing a part of the hydrophobic group of the water repellent resin, which is exposed on the surface of a plate, with the hydrophilic group in a hydrogen storage alloy electrode. CONSTITUTION:A hydrogen storage alloy electrode for a sealed alkaline storage battery is provided with a plate, which is formed by fixing the mixture of hydrogen storage alloy and the water repellent resin as the binder to a conductive support body. Hydrophilic characteristic is given to a part of the surface of this plate, and a part of the hydrophobic group included in the water repellent resin is replaced with the hydrophilic group. Desirable area ratio of the hydrophilic part to the all surface area of the plate is 10-90 %. In this plate, parts except for the part opposite to the current terminal part of a positive electrode desirably have the hydrophilic group. In this electrode, excellent charging and discharging reaction is performed in the hydrophilic part and excellent gas absorption is performed in the water repellent part.

18. 发明专利

JPH07326364A FUEL ELECTRODE FOR FUEL CELL USING SOLID ELECTROLYTE 失效
公开(公告)号：JPH07326364A
公开(公告)日：1995-12-12
申请号：JP11990094
申请日：1994-06-01
申请人： SANYO ELECTRIC CO
发明人： NAKANISHI NAOYA , KADOWAKI SHIYOUTEN , KAWAMURA HIROYUKI , TANIGUCHI SHUNSUKE , YASUO KOJI , AKIYAMA YUKINORI , MIYAKE YASUO , SAITO TOSHIHIKO
IPC分类号： C04B35/50 , H01M4/86 , H01M4/88 , H01M8/02 , H01M8/12
摘要： PURPOSE:To provide a high power generation function and restrain a drop in function over long-time operation by reforming the particle surface of a fuel electrode material made of a metal and a ceramic using oxygen ion and electron mixed conductive oxide, and thereby preparing a fuel electrode. CONSTITUTION:A fuel electrode for a solid electrolytic fuel cell is mainly formed out of metal 3 and surface reformed ceramic with an oxygen ion and electron mixed conductor 2 having both functions of oxygen ion conductivity and electron conductivity attached to the surface of a ceramic particle 1. The oxygen ion and electron mixed conductor 2 is cerium oxide, and composed of one substance selected from groups of (CeO2)0.8 (Sm2O3)0.2 (CeO2)0.8 (Y2O3)0.2 and (CeO2)0.8 (La2O3)0.2, or a mixture of two or more substances selected from the groups.

19. 发明专利

JPH07326363A ION CONDUCTIVITY IMPARTING ELECTRODE AND JOINTING MATERIAL FOR ELECTRODE AND ELECTROLYTE AND CELL USING THE ION CONDUCTIVITY IMPARTING ELECTRODE 失效
公开(公告)号：JPH07326363A
公开(公告)日：1995-12-12
申请号：JP11916794
申请日：1994-05-31
申请人： SANYO ELECTRIC CO
发明人： NAKANISHI NAOYA , KAWAMURA HIROYUKI , KANEKO MINORU , SAITO TOSHIHIKO
IPC分类号： C25B11/03 , G01N27/406 , H01M4/86 , H01M4/88 , H01M8/02 , H01M8/10
摘要： PURPOSE:To provide a highly functional electrode or jointing material for an electrode and a high molecular electrolytic film by covering the external surface of a porous electrode substrate and the internal surface thereof with high polymer for forming an ion exchange material layer and, then, attaching an electrode catalyst to the surface of the layer. CONSTITUTION:Porous carbon paper made of carbon fiber 3 is used as an electrode substrate. The porous carbon paper is immersed in a Nafion solution and, then, vacuum dried, thereby forming an ion exchange material layer 4 made of ion exchange high polymer on the surface of the carbon fiber 3. Also, the porous carbon paper is structured to have narrow holes continuous from one side to the other thereof. In addition, a catalyst 5 is vacuum deposited on the carbon paper having the layer 4, thereby preparing an ion conductivity imparting electrode 1. In this case, the electrode substrate preferably has a porosity between 35 and 50%.

20. 发明专利

JPH07320782A SOLID ELECTROLYTIC SECONDARY BATTERY 失效
公开(公告)号：JPH07320782A
公开(公告)日：1995-12-08
申请号：JP13142494
申请日：1994-05-20
申请人： SANYO ELECTRIC CO
发明人： YAMAZAKI MIKIYA , SHOJI YOSHIHIRO , YOSHIMURA SEIJI , NISHIO KOJI , SAITO TOSHIHIKO
IPC分类号： H01M10/05 , H01M10/0565 , H01M10/40
摘要： PURPOSE:To enhance charge-discharge cycle characteristic by using a polymer solid electrolyte or polymer gelled electrolyte difficult to react with a negative electrode, and making the internal resistance difficult to rise even by the repeat of charge-discharge cycle. CONSTITUTION:This solid electrolytic secondary battery has a positive electrode, a negative electrode using lithium as an active material, and a polymer solid electrolyte consisting of a composite of an electrolyte salt with a polymer or a polymer gelled electrolyte obtained by impregnating the polymer with an electrolyte consisting of the electrolyte salt and an aprotic solvent. The polymer is a multiple copolymer of at least three kinds of monomers selected from the group consisting of ethylene oxide, acrylonitrile, epoxy, vinylidene fluoride, ethylene, styrene, urethane, siloxane, and phosphazene.

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