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公开(公告)号：JP2005190913A
公开(公告)日：2005-07-14
申请号：JP2003433235
申请日：2003-12-26
发明人： HASHIMOTO TATSUYA
IPC分类号： H01M4/13 , H01M10/05 , H01M10/052 , H01M10/0587 , H01M10/40
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a lithium secondary battery wherein the battery size can be made small or battery capacity can be made large in the same battery size.
SOLUTION: In this lithium secondary battery, a group of electrode plates 3 wherein a positive electrode plate 4 and a negative electrode plate 5 wherein plain parts 42, 52 not coated with the active material are formed at one end parts in a width direction are wound while active material coating parts 41, 51 are disposed facing each other through a separator 6 and the plain parts 42, 52 of the positive and negative electrode plates 4, 5 are projected in a counter direction, the width of the active material coating part 51 of the negative electrode plate 5 is larger than the width of the active material coating part 41 of the positive electrode plate 4, and winding is performed in a state that the boundary of the active material coating part 51 and the plain part 52 in the negative electrode plate 5 and a side edge of the separator 6 are almost adjusted to form the group of electrode 3.
COPYRIGHT: (C)2005,JPO&NCIPI摘要翻译： 要解决的问题：为了提供一种锂二次电池，其中可以使电池尺寸小，或者可以以相同的电池尺寸使电池容量大。 解决方案：在该锂二次电池中，一组电极板3，其中正极板4和负极板5，其中未涂覆有活性材料的平面部分42,52的宽度 方向被缠绕，而活性物质涂覆部分41,51通过隔板6彼此面对设置，并且正极板4,5的平面部分52,52沿相反方向突出，活性材料的宽度 负极板5的涂布部51比正极板4的活性物质涂覆部41的宽度大，并且在活性物质涂布部51和平面部52的边界的状态下进行卷绕 在负极板5和隔膜6的侧边缘几乎被调节以形成电极组3。版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2005183359A
公开(公告)日：2005-07-07
申请号：JP2004173422
申请日：2004-06-11
发明人： HASHIMOTO TATSUYA , HASE MASATOMO
IPC分类号： H01M2/04 , H01M2/06 , H01M2/08 , H01M2/12 , H01M2/30 , H01M4/66 , H01M10/05 , H01M10/058 , H01M10/40
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a square battery and its manufacturing method wherein a sealing characteristic of an insulating gasket part such as a penetrating part of an electrode pillar constituting an electrode terminal can be secured with a high reliability.
SOLUTION: A negative electrode current collector 8 is joined to one end of an electrode plate group 3 housed in a square case 2, the negative electrode current collector 8 and the electrode pillar 18 as the electrode terminal of the negative electrode are connected, the electrode pillar 18 is made to be penetrated through a retaining cylindrical part 24 installed at the upper part cap 13 to close one end opening of the case 2, the insulating gasket 25 is interposed between the inner periphery of the retaining cylindrical part 24 and the outer periphery of the electrode pillar 18, and a circular caulking recess 26 of the cross-sectionally arcuate shape is formed at least at one place of the retaining cylindrical part 24.
COPYRIGHT: (C)2005,JPO&NCIPI摘要翻译： 要解决的问题：提供一种方形电池及其制造方法，其中可以高可靠性地确保诸如构成电极端子的电极柱的穿透部分之类的绝缘垫片部分的密封特性。 解决方案：将负极集电体8接合到容纳在正方形壳体2中的电极板组3的一端，负极集电体8和作为负极的电极端子的电极柱18连接 电极柱18被穿过安装在上部盖13上的保持圆筒部分24以封闭壳体2的一个端部开口，绝缘垫圈25插入在保持圆柱形部分24的内周和 至少在保持圆柱形部分24的一个位置处形成电极柱18的外周边和横截面弓形形状的圆形铆接凹槽26.（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004014421A
公开(公告)日：2004-01-15
申请号：JP2002169482
申请日：2002-06-11
发明人： UEMOTO SEIICHI , KIMURA KENJI , HASHIMOTO TATSUYA , FUJII TAKAFUMI , YUKISADA HIRONORI , HASE MASATOMO
IPC分类号： H01M2/12 , H01M2/10 , H01M6/42 , H01M10/60 , H01M10/613 , H01M10/625 , H01M10/643 , H01M10/6556 , H01M10/6563 , H01M10/50
CPC分类号： H01M10/613 , H01M2/105 , H01M2/12 , H01M6/42 , H01M10/625 , H01M10/633 , H01M10/643 , H01M10/6557 , H01M10/6563
摘要： PROBLEM TO BE SOLVED: To provide a battery pack preventing the generation of a defect caused by a reverse flow through a supply passage of cooling air of gas emitted from a battery when abnormality occurs.
SOLUTION: This battery pack 1 is formed by housing in parallel a plurality of batteries 11 in a case 2 forming a cooling air passage 3, and the cooling air passage 3 and a gas exhaust passage 4 for exhausting gas emitted from the battery when the abnormality arises are partitioned respectively inside the case 2.
COPYRIGHT: (C)2004,JPO-
公开(公告)号：JP2003297413A
公开(公告)日：2003-10-17
申请号：JP2002094222
申请日：2002-03-29
发明人： HASHIMOTO TATSUYA , KIMURA KENJI , UEMOTO SEIICHI , YUKISADA HIRONORI , HASE MASATOMO , FUJII TAKAFUMI
摘要： PROBLEM TO BE SOLVED: To provide a battery having no risk to damage a plate group even if vibration, etc., is applied and assuring a high reliability for a long period despite a poor service condition eventually. SOLUTION: The battery is structured so that a plate group 3 formed by winding round a positive plate and a negative plate with a separator interposed is accommodated in an exterior case 2 together with an electrolytic solution, wherein the electrode plate group 3 is wound on a core 4, and the two ends of the core 4 are supported by the exterior case 2. COPYRIGHT: (C)2004,JPO
摘要翻译： 要解决的问题：即使施加了振动等，也能够提供一种没有损坏板组的风险的电池，并且尽管最终使用条件差，但长时间确保高可靠性。 解决方案：电池被构造成使得通过缠绕正极板形成的板组3和插入隔板的负极板与电解液一起容纳在外部壳体2中，其中电极板组3是 卷绕在芯部4上，芯部4的两端由外壳2支撑。版权所有（C）2004，JPO
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公开(公告)号：JP2003229118A
公开(公告)日：2003-08-15
申请号：JP2002024254
申请日：2002-01-31
发明人： UEMOTO SEIICHI , HASHIMOTO TATSUYA , FUJII TAKAFUMI , KIMURA KENJI , YUKISADA HIRONORI , HASE MASATOMO
IPC分类号： H01M2/36
摘要： PROBLEM TO BE SOLVED: To provide a sealing structure of the liquid pouring port of a battery in which the pouring port can be sealed with a small number of processes and with high reliability. SOLUTION: This is a battery 1 in which the opening part of the outer case 2 housing a group of pole plates 3 is enclosed by a lid 4 and a liquid pouring port 9 for filling an electrolyte in the outer case 2 is formed on the lid, and the liquid pouring port 9 is sealed by a sealing means 10. The sealing means 10 is constructed of a sealing member which has an engaging flange 19 for engaging with the surrounding outer face of the pouring port 9 and a bag-shaped protrusion 20 to be inserted in the pouring port 9 and is made of a rivet unit 17 that is plastically deformed so that the bag-shaped protrusion 20 may be engaged with the surrounding inner face of the pouring port 9. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2002151057A
公开(公告)日：2002-05-24
申请号：JP2000344777
申请日：2000-11-13
摘要： PROBLEM TO BE SOLVED: To improve dispersbility of a positive electrode active material, an electrical conductive agent, and a bonding agent by improving a manufacturing method of a paste for the positive electrode of a lithium secondary battery, and to provide a battery, which suppresses capacity variation in the battery manufacture and degradation in the charging/discharging capacity in repeated charging/discharging. SOLUTION: In a paste for electrodes obtained by kneading and dispersion of a positive electrode active material having a lithium containing transition metal composite oxide as main substance, a conductive agent, and a binder into a solvent, a surfactant is added and dispersed into the solvent before adding and dispersing the binder.
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公开(公告)号：JP2002134101A
公开(公告)日：2002-05-10
申请号：JP2000320604
申请日：2000-10-20
摘要： PROBLEM TO BE SOLVED: To provide a battery having the least possible deteriorating charging capacity or loading property in repetitive charge/discharge by improving a method of producing a positive electrode plate for the lithium ion battery. SOLUTION: The lithium secondary battery comprises a positive electrode formed in the step of producing the positive electrode plate by applying to a collector a positive electrode paste formed by using a conductive agent, to which surface treatment is given by octylphenoxy polyethoxyethanol, and drying the same.
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公开(公告)号：JP2001210317A
公开(公告)日：2001-08-03
申请号：JP2000016739
申请日：2000-01-26
发明人： KASHIHARA YOSHIHIRO , ITO HIROBUMI , HASHIMOTO TATSUYA , OOHANA YORITO , OSHIMA KENICHI , IZAKI SEIGO
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of nonaqueous electrolytic solution secondary battery in which charge-discharge properties such as discharge rate property, charge-discharge cycle life or the like and thermal stability are improved. SOLUTION: By using an electrode plate in which the temperature difference between a paste application face and a current collection body face is eliminated and in which a binder is treated so that it is uniformly dispersed in the mixture paste, the current collection effect of electrode plate increases, and charge- discharge property such as the discharge rate property, charge-discharge cycle life or the like and thermal stability are improved.
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公开(公告)号：JP2000106189A
公开(公告)日：2000-04-11
申请号：JP11075399
申请日：1999-04-19
IPC分类号： H01M4/62 , H01M4/13 , H01M4/133 , H01M4/139 , H01M4/1393 , H01M10/05 , H01M10/0525 , H01M10/0566 , H01M4/02 , H01M4/04 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery having high capacity and superior reliability. SOLUTION: In this nonaqueous electrolyte secondary battery, a negative electrode is formed of the negative electrode active material, binder, thickener and the cross-linking agent, and this cross-linking agent is composed of at least one kind or more of materials selected from among a melamine resin, ureaformalin resin, tannic acid, glyoxal resin, di-methylol compound and PVA. A battery, capable of consuming the hydroxyl group as a cause of the irreversible dose and capable of improving the discharge capacity and capable of reducing the generating amount of hydrogen gas at the initial time of charge can be realized by using a negative plate 6 of the described structure.
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公开(公告)号：JPH1131500A
公开(公告)日：1999-02-02
申请号：JP18396197
申请日：1997-07-09
发明人： OOHANA YORITO , HASHIMOTO TATSUYA
IPC分类号： H01M4/1393 , H01M4/587 , H01M10/05 , H01M10/0525 , H01M10/0566 , H01M4/04 , H01M4/02 , H01M4/58 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To restrain the orientation of scale-like graphite, which has excellent intercalate characteristic of Li, in a negative electrode active material layer, and to improve the high rate characteristic by forming scale-like graphite powder into nearly spherical granular material, and coating a negative electrode collector foil with the active material paste, in which the granular material is distributed in the spherical shape condition, and drying it so as to obtain a negative pole plate. SOLUTION: Scale-like graphite powder 12 is supplied from a supplying machine 25 onto a disc 23 rotated at a constant speed, and the adhesive suspension liquid 14 is injected from an injector 26, and the scale-like graphite powder 12 is rolled on the inner wall 22 on a cylinder, and formed larger like a snowball, and discharged from a discharge port 28. After drying the discharged spherical material 15 with the hot air, the spherical material 15 is classified so as to obtain nearly spherical granular material. Continuously, polytetrafluoroethylene or the like is blended in this granular material, and it is kneaded so as to obtain the negative electrode active material paste, and this negative electrode active material paste is coated on a negative electrode collector foil of copper foil, and drying, rolling and cutting are performed so as to obtain a sheet-like negative pole plate.
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