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1. 发明专利

JP2005276740A Cylindrical lithium ion secondary battery 有权
标题翻译：圆柱锂离子二次电池
公开(公告)号：JP2005276740A
公开(公告)日：2005-10-06
申请号：JP2004091477
申请日：2004-03-26
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MURAOKA NORIKI , FUKUMASA TAKESHI , FURUTA HIROAKI , MATSUNO HIROSHI
IPC分类号： H01M2/02 , H01M2/26 , H01M4/66 , H01M6/16 , H01M10/04 , H01M10/05 , H01M10/0525 , H01M10/0587 , H01M10/40
CPC分类号： H01M4/661 , H01M2/022 , H01M2/26 , H01M4/13 , H01M4/131 , H01M4/133 , H01M10/0431 , H01M10/0525 , H01M10/0587 , H01M2300/004
摘要： PROBLEM TO BE SOLVED: To provide a cylindrical lithium ion secondary battery that has a group of electrodes in which a positive electrode plate where a strip of collector is coated with an active substance and a negative electrode plate where a strip of collector is coated with an active substance are wound in a spiral shape over a plurality of turns via a strip of separator, prevents rupture at the coated part of the positive electrode plate, and can also prevent internal short-circuiting from occurring.
SOLUTION: A positive electrode lead 9 is connected to a positive electrode collector that is not coated with an active substance in the winding start section of a group of electrodes of the battery. In the direction of the outer diameter of a group of electrodes from the positive electrode lead, the negative electrode plate 2 coated with an active substance at least over two rounds is arranged via a separator between a round in which a positive electrode is connected and a round in which the positive electrode plate 1 coated with an active substance located outside the rotation comes first.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种圆柱形锂离子二次电池，其具有一组电极，其中集电极条被带有活性物质的正极板和其中集电极条为负极板用活性物质涂覆的螺旋形状经由隔板条卷绕成多个匝，防止在正极板的涂覆部分断裂，并且还可以防止发生内部短路。解决方案：正电极引线9连接到在电池组的一组电极的绕组开始部分中未被活性物质涂覆的正极集电体。在从正极引线的一组电极的外径的方向上，涂覆活性物质的负极板2至少超过两轮，经由分隔件布置在正极连接的圆周和其中涂覆有位于旋转外部的活性物质的正极板1首先出现。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005243537A Manufacturing method of non-aqueous electrolyte secondary battery 审中-公开
标题翻译：非水电解二次电池的制造方法
公开(公告)号：JP2005243537A
公开(公告)日：2005-09-08
申请号：JP2004054113
申请日：2004-02-27
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MATSUNO HIROSHI , MURAOKA NORIKI , KINOSHITA KAZUNARI , YONEDA ATSUO , YOKOYAMA TAKASHI , SUGAFUJI MASAYA
IPC分类号： H01M10/05 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0566 , H01M10/058 , H01M10/40 , H01M4/02 , H01M4/58
CPC分类号： Y02P70/54
摘要： PROBLEM TO BE SOLVED: To solve the problem that in a lithium secondary battery, when metal foreign matter such as iron is mixed, the metal foreign matter in the positive electrode elutes when the battery is charged and that is precipitated on a negative electrode through a separator and when a conductive path of metal is formed in the separator, a minute short circuit is generated between the positive electrode and the negative electrode and voltage failure of the battery is brought about.
SOLUTION: This is a manufacturing method of a non-aqueous electrolyte secondary battery in which at the time of first-time charging, 0.01%-0.1% of the battery capacity is charged and a shelf standing time of at least one hour or more and 48 hours or less is provided. Even if the metal foreign matter such as iron is mixed in the positive electrode plate, minute short circuit between the positive electrode plate and the negative electrode plate through a separator can be prevented and voltage failure of the battery can be greatly reduced.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了解决在锂二次电池中混入金属异物如铁的问题，当电池充电时，正极中的金属杂质被洗脱，并且沉积在负极上电极通过隔板形成，并且当在隔板中形成金属导电路径时，在正极和负极之间产生微小的短路，并且导致电池的电压故障。解决方案：这是一种非水电解质二次电池的制造方法，其中在首次充电时，电池容量的0.01％-0.1％被充电，并且搁架时间至少为1小时或更长，48小时以内。即使在正极板中混入铁等金属杂质，也能够防止正极板与负极板之间通过隔板的短路，能够大幅降低电池的电压故障。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2000306602A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JP2000306602A
公开(公告)日：2000-11-02
申请号：JP11327199
申请日：1999-04-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MURAOKA NORIKI , KINOSHITA KAZUNARI , UNOKI SHIGEYUKI , KONISHI HAJIME
IPC分类号： H01M4/62 , H01M10/05 , H01M10/0567 , H01M10/0569 , H01M10/40 , H01M4/02
摘要： PROBLEM TO BE SOLVED: To provide a lithium secondary battery in which a high temperature holding characteristic is improved, having an excellent reliability with a high energy density, in the case of using a positive electrode having a lithium containing composite oxide served as an active material; a negative electrode composed of a carbon material capable of performing penetration/separation of lithium, a separator, and a nonaqueous electrolyte. SOLUTION: In a nonaqueous electrolyte using a mixed solvent consisting of a cyclocarbonate and a chain carbonate, vinylenecarbonate is added by 0.1-5% in a weight ratio, and one kind selected from 12-crown 4-either, 15-crown 5-either, and 18-crown 6-either is added by 0.05-3% in a weight ration respectively. Thereby, a reduced and produced film of vinylenecarbonate which is table even under a high temperature is formed on a surface of a negative electrode, and a side-reaction of the electrolyte solvent is suppressed, and a high temperature-holding characteristic is improved.

4. 发明专利

JP2000195501A ORGANIC ELECTROLYTE BATTERY AND MANUFACTURE OF THE SAME 失效
公开(公告)号：JP2000195501A
公开(公告)日：2000-07-14
申请号：JP36890798
申请日：1998-12-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MURAOKA NORIKI , KINOSHITA KAZUNARI , OHATA TSUMORU , SHIMIZU YASUSHIGE
IPC分类号： H01M6/18 , H01M4/13 , H01M4/139 , H01M4/66 , H01M4/74 , H01M10/04 , H01M10/05 , H01M10/0525 , H01M10/0565 , H01M10/058 , H01M4/02 , H01M4/04 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To prevent a positive-electrode current collector from peeling off a positive-electrode mix layer by arranging the current collector in a proper position to the mix layer, and to increase the utilization factor of an active material to improve discharging characteristics of an organic electrolyte battery in the shape of sheet or film composed of a positive electrode including a polymer for absorbing/holding an organic electrolyte, a separator and a negative electrode all unitedly laminated. SOLUTION: A positive electrode 1, oppositely arranged over both sides of a sheet-shaped negative electrode 2 via a film-shaped separator 3, is formed in the way that its porous current collector 1a is buried into the positive electrode mix layer 1b with the opposite sides from negative electrode of both current collector 1a and mix layer 1b making the same surface, or buried therein at the distance of 2/3-4/5 of the mix layer thickness from the negative electrode 2 with the rest of the positive electrode mix layer 1b existing on the outside of the current collector 1a.

5. 发明专利

JP2002184393A MANUFACTURING METHOD OF LITHIUM POLYMER SECONDARY CELL 失效
公开(公告)号：JP2002184393A
公开(公告)日：2002-06-28
申请号：JP2000378328
申请日：2000-12-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MURAOKA NORIKI , MINETANI KUNIHIKO , TAKEUCHI YASUHIKO , WAKAI YUTAKA
IPC分类号： H01M10/05 , H01M4/139 , H01M10/0525 , H01M10/0566 , H01M10/0585 , H01M4/04 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a lithium polymer secondary cell without lowering of cell capacity caused by the exfoliation of a positive electrode active material layer from a current collector, in spite that the positive electrode plate, formed by drying and press molding a current collector with the positive electrode active material painted only on one surface, and a negative electrode, interposing a separator, are laminated by heat and/or pressure. SOLUTION: Press molding is carried out by making the press molding temperature at the surface on which a positive electrode active material is not coated higher than the temperature at the surface on which a positive electrode active material is coated. It is recommended to make the press molding temperature 100 deg.C or more.

6. 发明专利

JP2001307735A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JP2001307735A
公开(公告)日：2001-11-02
申请号：JP2000114888
申请日：2000-04-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MURAOKA NORIKI , YAMASHITA KATSUMI
IPC分类号： H01M2/16 , H01M4/131 , H01M4/133 , H01M4/62 , H01M10/05 , H01M10/0525 , H01M10/0565 , H01M10/0566 , H01M4/02 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To improve the battery capacity and the cycle characteristic in a lithium secondary battery having a positive electrode using a composite oxide containing lithium as an active material, negative electrode composed of carbon material that lithium can be inserted in and detached from it, a separator, and nonaqueous electrolytic solution. SOLUTION: A polymer battery with a large capacity and superior cycle characteristic is provided by using a polymer blend whose mixing ratio of a vinylidene fluoride copolymer with composing ratio of hexafluoropropylene being 2 to 12 wt.% and that being 20 to 40 wt.% is 60:40 to 90:10 in weight ratio for one or more bender for the positive electrode, that for the negative electrode and polymer for the separator.

7. 发明专利

JPH11224690A SEALED NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH11224690A
公开(公告)日：1999-08-17
申请号：JP2574298
申请日：1998-02-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MURAOKA NORIKI , KOBAYASHI SHIGEO
IPC分类号： H01M10/05 , H01M4/505 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M10/0566 , H01M10/40 , H01M4/58
摘要： PROBLEM TO BE SOLVED: To lower the coagulation point and viscosity of a solvent and to improve the high-rate discharge characteristic of a battery by filling the void portion in the battery with methane gas or a mixed gas containing methane gas, and dissolving part of the methane gas in an electrolyte. SOLUTION: This battery is formed with a positive electrode mainly made of a lithium containing composite oxide expressed by the formula Lix My Ni1-y O2 , (where x: 1.10>=x>=0.5, M is one or more kinds of Fe, V, Cu, Mg, Co, Mn, Cr, Al, y: 1>=y>=0), a negative electrode mainly made of at least one kind selected from a group of a carbon material or a metal oxide capable of storing or releasing lithium, lithium, a lithium compound and a conductive polymer, and an electrolyte using a nonaqueous solvent. The void portion of the battery is filled with methane gas or a mixed gas containing methane gas. The methane gas of 5 vol.% or above is contained in the mixed gas.

8. 发明专利

JP2001273903A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JP2001273903A
公开(公告)日：2001-10-05
申请号：JP2000088003
申请日：2000-03-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MURAOKA NORIKI , KAWADATE YUTAKA
IPC分类号： H01M10/05 , H01M4/131 , H01M4/133 , H01M4/62 , H01M10/0525 , H01M10/0565 , H01M10/0566 , H01M4/02 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To improve a low-temperature property in a lithium secondary battery that is constituted from a positive electrode in which lithium containing complex oxide is used as an active material, a negative electrode which is composed of carbonaceous materials wherein occlusion and emission of lithium ion is electrochemically possible, a separator, and a nonaqueous electrolytic solution. SOLUTION: By adding Co3O4 which has a surface area of specific range, an electro-conductivity of positive electrode can be enhanced and a lithium secondary battery which can be superior in the low-temperature property can be provided.

9. 发明专利

JPH1064549A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH1064549A
公开(公告)日：1998-03-06
申请号：JP22211496
申请日：1996-08-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MURAOKA NORIKI , OZAKI YOSHIYUKI , KOBAYASHI SHIGEO , WATANABE SHOICHIRO
IPC分类号： H01M4/62 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/05 , H01M10/052 , H01M10/0566 , H01M4/02 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To suppress a rise in temperature of a battery caused by short circuit by containing a heat absorbing material of a polymer compound having a specified melting point and heat of fusion and a binder such as styrene - butadiene rubber in a positive electrode of a nonaqueous electrolyte secondary battery. SOLUTION: A nonaqueous electrolyte secondary battery has a positive electrode using a lithium containing composite oxide as an active material, a negative electrode comprising a carbon material capable of absorbing/releasing lithium, and a nonaqueous electrolyte. A polymer compound having a melting point of 90-130 deg.C and a heat of fusion of 30J/g or more (such as polyethylene, polypropylene, and ethylene - ethyl acrylate - maleic anhydride copolymer) is contained in the positive electrode as a heat absorbing material, and has a globular shape of a mean particle size of 1-12μm, and the added content is 10% or less. As a binder, styrene - butadiene rubber, polyvinylidene fluoride, or polytetrafluoroethylene, etc., is contained in the positive electrode. The nonaqueous electrolyte secondary battery capable of satisfying battery characteristics and suppressing the rise in temperature of the battery when short circuit of the battery arose on the inside and the outside.

10. 发明专利

JPH1064501A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH1064501A
公开(公告)日：1998-03-06
申请号：JP22092196
申请日：1996-08-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OZAKI YOSHIYUKI , MURAOKA NORIKI , KOBAYASHI SHIGEO
IPC分类号： H01M2/16 , H01M10/05 , H01M10/052 , H01M10/0525 , H01M10/0566 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To ensure safety by suppressing a rapid temperature rise of a battery by an effect of a separator, in the case of internally short-circuiting in the nonaqueous electrolyte battery. SOLUTION: As a separator, a belt-shaped high polymer fine porous film is used. Here, the film is used, which has 1,000 to 3,000% elongation percentage in its width direction, 700 to 1,200sec/100cc value of air permeability at a room temperature, 700 to 3,000sec/100cc value of air permeability in the case of holding at 85 deg.C for 3min. in the atmosphere and 10,000sec/100cc value of air permeability similarly in the case of holding at 95 deg.C for 3min. in the atmosphere.

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