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31. 发明专利

JPH11317213A POROUS BODY FOR INTRODUCING NEW ATOMIC GROUP CONTAINING SULFUR, METHOD FOR INTRODUCING THE SULFUR CONTAINING ATOMIC GROUP OF THE POROUS BODY, AND SEPARATOR FOR BATTERY 失效
公开(公告)号：JPH11317213A
公开(公告)日：1999-11-16
申请号：JP4337099
申请日：1999-02-22
申请人： JAPAN VILENE CO LTD
发明人： TAKEUCHI YASUSHI , KAWABE MASAAKI , YAMAZAKI HIROAKI , KANEKO MASAYUKI , ANAMI ITSUYA , SATO KAZUYA
IPC分类号： C08J7/00 , C08J7/12 , D06M10/02 , D06M11/00 , D06M11/51 , H01M2/16
摘要： PROBLEM TO BE SOLVED: To provide a porous body for introducing a sulfur containing atomic group having a high surface S/C ratio and a high surface O/C ratio, a method of introducing the sulfur containing atomic group into the whole surface of the porous body with high efficiency, and a separator for an alkaline battery. SOLUTION: This porous body has a surface S/C ratio of not less than 7×10 and a surface O/C ratio of not less than 0.2. As for an introduction method, dielectric layers 41, 42 are disposed on opposite surface sides and a porous body 11 is disposed between a pair of electrodes 21, 22 which are oppositely disposed, and an electric discharge is generated by the application of a voltage under the existence of a sulfur containing compound gas and under the atmospheric pressure. A separator for an alkaline battery is constructed of a nonwoven fabric into which the atomic group containing sulfur is introduced.

32. 发明专利

JPH07147154A SEPARATOR FOR ALKALINE BATTERY 失效
公开(公告)号：JPH07147154A
公开(公告)日：1995-06-06
申请号：JP34968593
申请日：1993-12-28
申请人： JAPAN VILENE CO LTD
发明人： TOKUTAKE NOBUTOSHI , TANAKA MASANAO , SATO KAZUYA , ARIMURA TOMOAKI , NAKAO ETSURO , YAMAZAKI HIROAKI
IPC分类号： H01M2/16 , H01M6/06 , H01M10/24
摘要： PURPOSE:To make a short circuit difficult to occur, provide excellent liquid holding property, and smoothly operate a battery for a long period by subjecting a water flow bonded nonwoven fabric consisting of fiber which mainly consists of polyolefin extra fine fibers obtained by dividing a dividing composite fiber to a hydrophilic treatment. CONSTITUTION:A fiber having a section form shown in (c) of the drawing, for example, is constituted from 0.04 and 0.12 deniers of circular and petal polypropylene component 2 and 0.12 denier of a polyethylene component 1. A hundred percent of this dividing composite fiber with a fineness of 2 deniers and a fiber length of 38mm is opened by a card machine to laminate unidirectional and cross fiber webs with METSUKE of 13 and 52g/m . This is treated from both surfaces with a water flow having a water pressure of 130kg/cm on a nozzle plate having a nozzle diameter of 0.13mm and a pitch of 0.6mm, This cloth is dipped in fuming sulfuric acid, sulfonated, and then calendered to provide a separator having a METSUKE of 65g/m and a thickness of 0.15mm. The same treatment can be performed in constitutions other than (c) in the drawing. Thus, excellent electrolyte resistance, oxidizing property, and liquid holding property are provided, and a battery can be smoothly operated for a long period.

33. 发明专利

JP2002198024A SEPARATOR FOR CELL 失效
公开(公告)号：JP2002198024A
公开(公告)日：2002-07-12
申请号：JP2000396133
申请日：2000-12-26
申请人： JAPAN VILENE CO LTD , MITSUBISHI MATERIALS CORP
发明人： SATO KAZUYA , TAKASE TOSHIAKI , YAMAZAKI HIROAKI , TANAKA MASANAO , IMAI HIROYUKI , KANDA EIKO
IPC分类号： H01M2/16 , H01M10/30
摘要： PROBLEM TO BE SOLVED: To provide a separator for a cell with excellent electrolyte preservation property and self-discharge restraining property. SOLUTION: The separator for the cell is a porous material made of polyolefin fiber or polyamide fiber to which a natural mineral, or metal oxide, which are stable in alkali electrolyte solvent, or an acidic solid which is the particle of above material to which, acid is made to adhere, are made to stick. Of the above material, the acidity is 4.8 or less, and the content of the acidic particles is 5-70 g/m2.

34. 发明专利

JP2000315487A SEPARATOR FOR ALKALINE BATTERY 失效
公开(公告)号：JP2000315487A
公开(公告)日：2000-11-14
申请号：JP12476299
申请日：1999-04-30
申请人： JAPAN VILENE CO LTD
发明人： SATO KAZUYA , KATO KOICHI , TANAKA MASANAO
IPC分类号： H01M2/16
摘要： PROBLEM TO BE SOLVED: To suppress increase of inner pressure in a battery and to prevent oxidation degradation by forming a separator of a nonwoven fablic containing inside a specific composition of methacrylic acid-ethylene copolymer. SOLUTION: This separator is formed of a nonwoven fablic containing inside methacrylic acid-ethylene copolymer. Therefore, affinity with electrolyte is improved, increase of inner pressure in a battery is suppressed, oxidation resistance is good, and thus short circuit can be prevented. Because the methacrylic acid-ethylene copolymer has a low melting point and can be fused, the separator with high tensile strength and rigidity is provided. The amount of the methacrylic acid-ethylene copolymer is 3-18% of mass of the entire nonwoven fablic, preferably 10-13%. Fiber constituting this nonwoven fablic may contain ethylene-based fiber, and in addition, may contain, for example, extra fine fiber of about 0.00001-0.5 denier, high strength fiber with tensile strength higher than 5 g/d, or fusible fiber.

35. 发明专利

JP2000173573A SEPARATOR FOR ALKALINE BATTERY AND MANUFACTURE OF SEPARATOR 失效
公开(公告)号：JP2000173573A
公开(公告)日：2000-06-23
申请号：JP34151698
申请日：1998-12-01
申请人： JAPAN VILENE CO LTD
发明人： SATO KAZUYA , TAKEUCHI YASUSHI , KAWABE MASAAKI
IPC分类号： H01M2/16 , C08F2/52 , C08G65/08 , H01M6/06 , H01M10/24
摘要： PROBLEM TO BE SOLVED: To provide a separator for an alkaline battery excellent in the electrolytic solution retaining property and internal pressure characteristic and offer a method to manufacture the separators. SOLUTION: A separator for an alkaline battery has polymerization layers of hydrophilic monomers and/or polymers at the outer surface of and inside a fiber sheet, wherein the polymerization amount (per unit volume) of the monomers and/or polymers near the outer surface of the sheet is no more than the corresponding value inside the sheet. The manufacturing method is such that the fiber sheet carrying the monomers and/or polymers is installed between a pair of electrodes positioned opposing (at least one of them carrying a dielectric substance at the opposing surface) in such a way that both electrodes (the dielectric substance, if applicable) are in contact with the outer surface, and electric discharge is generated in the voids in the sheet by impressing a voltage between the two electrodes, and thereby the monomers and/or polymers are polymerized.

36. 发明专利

JP2000164191A SEPARATOR FOR ALKALINE BATTERY 失效
公开(公告)号：JP2000164191A
公开(公告)日：2000-06-16
申请号：JP26888799
申请日：1999-09-22
申请人： JAPAN VILENE CO LTD
发明人： KATO KOICHI , SATO KAZUYA , TANAKA MASANAO
IPC分类号： H01M2/16
摘要： PROBLEM TO BE SOLVED: To provide a separator for an alkaline battery having an excellent self-discharge control action and capable of easily hydrophilization processed in manufacturing process. SOLUTION: A separator for an alkaline battery includes a gas transparent sheet having hydrophilic portion. The hydrophilic portion includes methacrylic acid or its derivative comonomer and ethylene comonomer and has methacrylic acid/ethylene copolymer component whose crystallinity is not less than 25%.

37. 发明专利

JPH1053657A TREATMENT OF WHOLE SURFACE OF NONCONDUCTIVE POROUS MATERIAL, APPARATUS FOR TREATING THE WHOLE SURFACE AND NEW MODIFIED NONCONDUCTIVE POROUS MATERIAL 失效
公开(公告)号：JPH1053657A
公开(公告)日：1998-02-24
申请号：JP12172297
申请日：1997-04-24
申请人： JAPAN VILENE CO LTD
发明人： TAKEUCHI YASUSHI , KAWABE MASAAKI , YAMAZAKI HIROAKI , SATO KAZUYA
IPC分类号： C08J7/00 , B01J19/08 , C08J7/12
摘要： PROBLEM TO BE SOLVED: To provide a method for treating the whole surface of a nonconductive porous material obtained by electric discharge, by which the nonconductive porous material can be treated not only on the surface of the exterior thereof but also on the surface of the cell in the interior thereof, hardly cause the treated material to be damaged by a sparking, etc., and capable of using every kind of gas and continuously treating the material. SOLUTION: The whole surface of a nonconductive porous material 11 is treated by arranging the porous material 11 between a pair of electrodes 21 and 22 with dielectric material layers 41 and 42 arranged at each mutually facing surface side of the electrode 21 and 22 so that the nonconductive porous material 11 may not be brought into contact with the electrodes 21 and 22 but brought into direct contact with the surfaces of the dielectric material layers 41 and 42, charging a low frequency alternating voltage having 0.1-100kHz frequency between the electrodes 21 and 22 and electrically discharging in the vacancies of the interior of the nonconductive porous material 11.

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