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51. 发明专利

JP2002367613A Lead storage battery 审中-公开
标题翻译：铅蓄电池
公开(公告)号：JP2002367613A
公开(公告)日：2002-12-20
申请号：JP2002067800
申请日：2002-03-13
申请人： Hitachi Ltd , Shin Kobe Electric Mach Co Ltd , 新神戸電機株式会社 , 株式会社日立製作所
发明人： HONBO MICHIKO , HOSHI EIJI , MURANAKA TADASHI , TAKEUCHI SEIJI
IPC分类号： H01M4/62
CPC分类号： Y02T10/7016
摘要： PROBLEM TO BE SOLVED: To obtain a lead storage battery with higher efficiency of charging property than before, and to obtain a carbon material with excellent charge acceptability used for the lead storage battery. SOLUTION: The efficiency of charging property of the lead storage battery is heightened and charge acceptability is improved by using carbon materials like activated carbon or carbon black to which, a simple substance or a compound, having desulfurization catalysis function or SOx oxidation catalysis function, is added or made to hold, as additives to the negative electrode activator. By applying the lead storage battery, having the negative electrode containing the carbon material to which, such an additives is added or made to hold, to an electric automobile with high input and output properties, various kinds of hybrid automobiles, electric power storage systems, elevators, electric power tools, power source systems like uninterrupted power source or scattered power sources, a stable control is made possible.
摘要翻译：要解决的问题：获得具有比以前更高的充电性能的铅蓄电池，并获得用于铅蓄电池的具有优异电荷接受性的碳材料。解决方案：通过使用具有脱硫催化功能或SOx氧化催化功能的单一物质或化合物为活性炭或炭黑的碳材料，提高了铅蓄电池的充电性能，并且电荷可接受性得到改善添加或制成保持作为负极活化剂的添加剂。通过施加铅蓄电池，将具有这样的添加剂添加或制成保持的碳材料的负极具有高输入输出特性的电动汽车，各种混合动力汽车，蓄电系统，电梯，电动工具，不间断电源或分散电源等电源系统，可以实现稳定的控制。

52. 发明专利

JP2000268824A LITHIUM BATTERY AND ITS MANUFACTURE 失效
公开(公告)号：JP2000268824A
公开(公告)日：2000-09-29
申请号：JP2000010222
申请日：2000-01-14
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： KANEDA JUNYA , WATABE NORIYUKI , AONO YASUHISA , TAKEUCHI SEIJI , MURANAKA TADASHI , TAKEI KOICHI
IPC分类号： H01M10/05 , H01M4/02 , H01M4/36 , H01M4/38 , H01M4/587 , H01M4/58 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a lithium battery having a high capacity and long cyclic service life. SOLUTION: This lithium battery is composed of a positive electrode 2, a negative electrode 4 containing an active material capable of storing and releasing lithium ions, and a non-aqueous electrolytic solution or polymer electrolyte. The negative electrode active material contains particles of at least one of elements capable of forming a compound with lithium, having a melting point >=900 deg.C, and having a coefficient of thermal expansion

53. 发明专利

JP2000200606A NONAQUEOUS SECONDARY BATTERY AND GRAPHITE POWDER MANUFACTURE 失效
公开(公告)号：JP2000200606A
公开(公告)日：2000-07-18
申请号：JP2000033271
申请日：2000-02-10
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： HONBOU HIDETOSHI , TAKEUCHI SEIJI , MOMOSE HIDETO , HORIBA TATSUO , MURANAKA TADASHI , ISHII YOSHITO
IPC分类号： H01M10/05 , C01B31/02 , C01B31/04 , H01M4/587 , H01M10/0525 , H01M10/0566 , H01M4/58 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To enlarge lithium storage/discharging capacity by constituting a negative electrode so as to contain graphite powder rhombohedral graphite structure below a specific percent. SOLUTION: Either of natural graphite or artificial graphite may be used for a material (raw graphite) of graphite powder, and especially scale-shaped natural graphite is preferable. A jet mill is used for a machine pulverizing the raw graphite into the grain size 100 μm or less. This machine can reduce the generated quantity of amorphous carbon. The pulverized raw graphite (raw powder) contains rhombohedral structure graphite by 30%. The graphite powder obtained by pulverization is treated by an acidic solution containing at least one of sulfuric acid, nitric acid, perchloric acid, phosphoric acid, and hydrofluororic acid. Secondly, the compound is washed, neutralized, and dried to remove anions in the acidic solution to be obtain a desired graphite powder. In this case, the presence rates of the rhombohedral structure and the hexagonal structure are set to 20% or less and 80% or more respectively.

54. 发明专利

JP2000067825A SET BATTERY 失效
公开(公告)号：JP2000067825A
公开(公告)日：2000-03-03
申请号：JP23868698
申请日：1998-08-25
申请人： HITACHI LTD
发明人： NISHIMURA KATSUNORI , YOSHIKAWA MASANORI , ANDO HISASHI , MURANAKA TADASHI
IPC分类号： H01M2/02 , H01M2/10
摘要： PROBLEM TO BE SOLVED: To provide a compact set battery excellent in cooling efficiency and safety without reducing the weight energy density or volume energy density of the set battery wherein nonaqueous electrolyte secondary batteries are incorporated. SOLUTION: Multiple nonaqueous electrolyte secondary batteries 21 are so incorporated in this set battery that the side surfaces of the respective nonaqueous electrolyte secondary batteries 21 are arranged adjacently to one another, and a spacer 22 formed of a material containing a substance having at least either a flame resistant property or a self-extinguishing property is installed between the side surfaces of the respective nonaqueous electrolyte secondary batteries 21 adjacent to each other. Thereby, miniaturization and the improvement of cooling efficiency and safety can be realized without reducing the weight energy density or volume energy density of the set battery.

55. 发明专利

JP2000058043A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JP2000058043A
公开(公告)日：2000-02-25
申请号：JP22668698
申请日：1998-08-11
申请人： HITACHI LTD
发明人： TAKEUCHI SEIJI , HONBOU HIDETOSHI , KANEDA JUNYA , MURANAKA TADASHI
IPC分类号： H01M10/05 , C01B31/02 , H01M4/131 , H01M4/133 , H01M4/36 , H01M4/587 , H01M10/0525 , H01M10/0566 , H01M4/02 , H01M4/04 , H01M4/58 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a lithium secondary battery whose energy density is high and charging/discharging cycle characteristic is good. SOLUTION: This lithium secondary battery comprises a positive electrode 10, a negative electrode 12, and a nonaqueous electrolyte containing electrolyte. As negative electrode active material of the negative electrode, carbon material formed by dispersing at least one kind of micro metallic particles respectively of metal forming alloy with lithium and non-alloy metal for lithium on high crystalline carbon or amorphous carbon particle is used, and as the positive electrode active material of the positive electrode NaFeO2 type layered compound is used.

56. 发明专利

JP2000058036A SECONDARY BATTERY 失效
公开(公告)号：JP2000058036A
公开(公告)日：2000-02-25
申请号：JP22403398
申请日：1998-08-07
申请人： HITACHI LTD
发明人： IGAWA MICHIKO , TSURUOKA SHIGEO , MURANAKA TADASHI , KASAI MASAHIRO
IPC分类号： H01M4/62 , H01M2/34 , H01M4/13 , H01M10/05 , H01M10/0525 , H01M10/058 , H01M10/42 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a battery of high safety with respect to overcharging, collapsing, and throwing into fire than those of prior art. SOLUTION: This secondary battery has a corundum structure which is symmetric in relation to a ridge surface (R3c) in a positive electrode active material, and/or a negative electrode active material, a substrate, a separator, and/or a terminal, and has a metal oxide with the composition M2O3 (where M is one kind selected from among Ti, Al, V, Fe, Cr) having phase transformation followed by large decrease in the conductivity in the range of 100 deg.C to 220 deg.C.

57. 发明专利

JP2000034110A CARBON MATERIAL 失效
公开(公告)号：JP2000034110A
公开(公告)日：2000-02-02
申请号：JP20006698
申请日：1998-07-15
申请人： HITACHI LTD
发明人： TAKEUCHI SEIJI , HONBOU HIDETOSHI , KANEDA JUNYA , MURANAKA TADASHI
IPC分类号： C01B31/02 , C01B31/04 , D06M11/00 , D06M11/83 , D06M101/00 , D06M101/40 , H01G11/22 , H01G11/30 , H01G11/32 , H01M4/62 , H01M4/86 , H01M10/39 , H01G9/058
摘要： PROBLEM TO BE SOLVED: To improve a surface area, electronic conductivity, wetting properties to an active substance, etc., and to raise a metallic action by metal particles by adding metal particles to the interior or the surface of a highly crystalline graphite, an amorphous carbon particle or a carbon fiber eroded from the surface toward the interior. SOLUTION: Silver particles 2 as metal particles are dispersed and attached to the surface of an amorphous carbon particle 1 as a carbon material and heat-treated in an oxidizing atmosphere. Consequently the carbon material in the vicinity of the silver particles 2 is oxidized and eroded. The silver particles 2 are not oxidized by themselves, embedded in the erosion, included in the carbon particle 1 and bonded in high adhesivity by an anchor effect. Characteristics of the carbon material such as electron conductivity, wetting properties to an active substance of a battery, specific surface area, metallic action, antimicrobial properties, etc., can be controlled through the metal particles and improved for a long period of time without causing migration, etc., by the method.

58. 发明专利

JPH11307102A LITHIUM SECONDARY BATTERY AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH11307102A
公开(公告)日：1999-11-05
申请号：JP11459798
申请日：1998-04-24
申请人： HITACHI LTD
发明人： KANEDA JUNYA , KONDO YASUO , ITABASHI TAKESHI , TAKEUCHI SEIJI , MURANAKA TADASHI , INAGAKI MASATOSHI , AONO YASUHISA
IPC分类号： H01M10/05 , C01B31/02 , C01B31/04 , H01M4/13 , H01M4/133 , H01M4/139 , H01M4/1393 , H01M4/587 , H01M4/62 , H01M4/64 , H01M4/66 , H01M6/10 , H01M10/052 , H01M10/0565 , H01M10/0566 , H01M4/02 , H01M4/58 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To prevent reduction in an adhesive property of an active material, and to improve a charge/discharge cycle characteristic by setting the substantial surface area of at least one current collector surface of a negative electrode and a positive electrode not less than specific times the apparent surface area. SOLUTION: A positive electrode 1 is obtained by adhering a positive electrode active material 2 such as lithium cobalt oxide to a positive electrode current collector 1 such as aluminum foil. A negative electrode 6 is obtained by adhering a negative electrode active material 5 desirably containing scaly graphite or lump-shaped amorphous carbonaceous powder and metallic powder storing/releasing lithium ions to the surface of a negative electrode current collector 4 such as copper foil. These positive electrode 3 and negative electrode 6 are wound via a porous separator 7 to be housed in a battery can 10 filled with an organic solvent electrolyte. In that case, the substantial surface area of at least one surface of the current collectors 1, 4 is formed into two times or more of the appearance. This lithium secondary battery can obtain discharge capacity 85% or more after 200 cycles to discharge capacity 100% after charge/ discharge 5 cycles of a prescribed condition.

59. 发明专利

JPH11176446A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JPH11176446A
公开(公告)日：1999-07-02
申请号：JP34466497
申请日：1997-12-15
申请人： HITACHI LTD
发明人： YAMAUCHI SHIYUUKO , ANDO HISASHI , YOSHIKAWA MASANORI , MURANAKA TADASHI
IPC分类号： H01M4/62 , H01M4/13 , H01M10/05 , H01M10/052 , H01M10/0566 , H01M4/02 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a battery having superior charging and discharging cycle characteristics and output characteristic at high rate by forming a positive electrode mix of a positive electrode active material, a conductive auxiliary and a binder, and forming the conductive auxiliary of the fiber-like carbon material and the carbon material containing the granular carbon. SOLUTION: When the entire conductive auxiliary is set at 100 wt.%, a fiber-like carbon is preferably contained at 1-20 wt.%, and a granular carbon is preferably contained at 99-80 wt.%. The granular carbon contains the crystal carbon and the non-crystalline carbon, and in the case where the overall conductive auxiliary is set at 100 wt.%, the fiber-like carbon is preferably contained at 1-20 wt.%, and the granular carbon is preferably contained at 99-80 wt.% Furthermore, when the entire granular carbon is set at 100 wt.%, a crystal carbon is preferably contained at 90-60 wt.%, and a non-crystal carbon is preferably contained at 10-40 wt.%. It is preferable that the fiber-like carbon have an aspect ratio at 20-100,000 and a fiber diameter at 0.001-2 μm, and the granular carbon having an aspect ratio at 1-5.

60. 发明专利

JPH1186854A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JPH1186854A
公开(公告)日：1999-03-30
申请号：JP24647297
申请日：1997-09-11
申请人： HITACHI LTD
发明人： KANEDA JUNYA , TAKEUCHI SEIJI , HONBOU HIDETOSHI , MURANAKA TADASHI , INAGAKI MASATOSHI , KODAMA HIDEYO , AONO YASUHISA
IPC分类号： H01M4/38 , H01M4/02 , H01M4/36 , H01M10/05 , H01M10/052 , H01M10/0565 , H01M10/0566 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a negative electrode active material suppressed for collapse and having a high capacity and a long life by forming the negative active material bearing the charging/discharging of a negative electrode material with grains containing the phase storing lithium and the phase storing no lithium. SOLUTION: In a negative electrode material, the phase-storing lithium is made of one of 3B, 4B, 5B group elements, and it is preferably made of one of Al, Ga, In, Si, Ge, Sn, Pb, Sb, Bi. The phase-storing lithium is the phase of an inter-metallic compound made of at least one kind of element among Al, Ga, In, Si, Ge, Sn, Pb, Sb, Bi. The phase which stores no lithium is preferably a phase made of one of 4A, 5A, 6A group elements and at least one kind of element from among Mn, Fe, Co, Ni, Cu.

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