专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2001052689A ALKALINE SECONDARY BATTERY 失效
公开(公告)号：JP2001052689A
公开(公告)日：2001-02-23
申请号：JP21989299
申请日：1999-08-03
申请人： TOSHIBA BATTERY
发明人： KAWAI HIROKI , SATO TSUTOMU , FUJIMORI YASUNORI , HATA KATSUYUKI
IPC分类号： H01M4/24 , H01M10/30
摘要： PROBLEM TO BE SOLVED: To provide an alkaline secondary battery capable of avoiding a voltage drop when it is stored in a high-temperature environment and equipped with an enhanced discharge capacity at a low temperature. SOLUTION: A negative electrode 4 of an alkaline secondary battery is formed from a powder of hydrogen storage alloy containing at least one sort of rare earth element, nickel, cobalt, and manganese and having a composition to meet the condition 10

2. 发明专利

JP2000299104A MANUFACTURE OF NICKEL HYDROGEN SECONDARY BATTERY 失效
公开(公告)号：JP2000299104A
公开(公告)日：2000-10-24
申请号：JP10920499
申请日：1999-04-16
申请人： TOSHIBA BATTERY
发明人： SATO TSUTOMU , TAKAHASHI HIROYUKI , FUJIMORI YASUNORI , TAKAHASHI TATSU
IPC分类号： H01M4/26 , H01M4/30 , H01M4/74 , H01M10/28
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a nickel hydrogen secondary battery which is excellent by winding and comprises a spiral electrode group having a negative electrode with high density to control flaking of a paste layer convering a punched metal sheet. SOLUTION: This manufacturing method comprises a step of applying and drying a paste which contains hydrogen storage alloy powder and a binder at both surfaces of band-shaped punting metal sheet 3 having holeless parts 1a and 1b with a predetermined width at both sides thereof and a lot of openings 2 inside thereof, so that a cross-sectional thickness of a paste layer 4 including the holeless parts 1a and 1b may become 80 to 95% with respect to a sectional thickness of the paste layer 4 at the opening area, a step of forming a paste type negative electrode by rolling and cutting the punting metal sheet covered with the paste in a rectangular strip, and a step of forming an electrode group in which the paste type negative electrodes and positive electrodes are wound in a spiral shape with separators interposed therebetween.

3. 发明专利

JPH10162815A SEALED NICKEL HYDROGEN BATTERY 失效
公开(公告)号：JPH10162815A
公开(公告)日：1998-06-19
申请号：JP32300096
申请日：1996-12-03
申请人： TOSHIBA BATTERY
发明人： HATA KATSUYUKI , SATO TSUTOMU
IPC分类号： H01M4/62 , H01M4/24 , H01M10/30
摘要： PROBLEM TO BE SOLVED: To provide an electrode which can prevent fibers from projecting to an outside surface and has high strength and has stable performance by setting curled conductive fibers to be contained in a paste electrode to a length of a specific range, and forming notch parts in the lengthwise direction. SOLUTION: Conductive fibers 8 which have a length of 5 to 20mm and whose cross section is polygonal are curled, and are used for a paste electrode, and fluffy softness and a thickness are imparted, and tip parts of the fibers are made hard to project outside a sheet, and a length is set to this range, and a crack is eliminated at sheet winding time, and the fibers are not locally gathered, and are uniformly dispersed. Notch parts 9 are formed on the fibers whose cross section is polygonal, and the fibers are made mutually entangled, and thickness directional strength of the sheet is increased, and they are made untearable. Therefore, an active material can be sufficiently filled, and current collecting efficiency is enhanced, and short-circuiting by projection of the fibers is eliminated, and a sealed nickel hydrogen battery having an electrode which has high strength and stable performance, can be obtained.

4. 发明专利

JPH09199118A APPLYING DEVICE AND METHOD FOR PASTE TYPE ELECTRODE 失效
公开(公告)号：JPH09199118A
公开(公告)日：1997-07-31
申请号：JP670896
申请日：1996-01-18
申请人： TOSHIBA BATTERY
发明人： TAKAHASHI HIROYUKI , HATA KATSUYUKI , TSUKIASHI MASAHIKO , SATO TSUTOMU
IPC分类号： H01M4/26
摘要： PROBLEM TO BE SOLVED: To obtain a flat applying surface without irregularity so that it can be coated stably, uniformly and continuously for a long time. SOLUTION: A device comprises a paste vessel 4 receiving alloy paste 9, means feeding a substrate 2a toward this paste vessel 4 to make the alloy paste 9 in the vessel stick to the substrate 2a to substantially vertically pull up this substrate and a slit member 5 forming a slit 5a for removing the alloy paste 9 excessively sticking to the substrate 2a by making the substrate 2a pulled up from the vessel pass through. In this slit member 5, its slit space is set to a proper range in accordance with a feed speed of the substrate 2a, this edge angle is set to a 45 to 60 deg. range, and the thickness is set to a 10 to 40mm range.

5. 发明专利

JP2000277142A CYLINDRICAL ALKALINE SECONDARY BATTERY 失效
公开(公告)号：JP2000277142A
公开(公告)日：2000-10-06
申请号：JP7780099
申请日：1999-03-23
申请人： TOSHIBA BATTERY
发明人： TAKAHASHI TATSU , KIYAMA YOSHIHIRO , SATO TSUTOMU
IPC分类号： H01M4/28 , H01M4/32 , H01M10/28 , H01M10/30
摘要： PROBLEM TO BE SOLVED: To provide a cylindrical alkaline secondary battery for which the rate of occurrence of defective insulation is reduced. SOLUTION: In this cylindrical alkaline secondary battery including a group of electrode manufactured by rolling a positive electrode 2 and a negative electrode into a spiral shape with a separator therebetween, the positive electrode 2 has a structure in which a mixture 6 containing active material is held in a conductive substrate 7 except at a roll start end and the thickness of an end at which the mix is not held is 10 to 45% of the thickness of the mixture holding area. The upper end of a positive electrode lead 8 is secured to the end of the positive electrode 2 at which the mixture is not held, in such a manner that the upper end projects from the positive electrode 2. Of both ends along the longitudinal direction of the positive electrode lead 8, a portion secured to the end at which the mixture is not held is covered with an insulating layer 9.

6. 发明专利

JP2000228201A NICKEL-HYDROGEN SECONDARY BATTERY 失效
公开(公告)号：JP2000228201A
公开(公告)日：2000-08-15
申请号：JP2728199
申请日：1999-02-04
申请人： TOSHIBA BATTERY
发明人： SATO TSUTOMU , TAKAHASHI HIROYUKI , FUJIMORI YASUNORI , TAKAHASHI TATSU
IPC分类号： H01M4/24 , H01M4/66 , H01M4/74 , H01M10/30
摘要： PROBLEM TO BE SOLVED: To provide a nickel-hydrogen secondary battery provided with a high-density negative electrode that has a good winding characteristic by improving flexibility and restrains the peeling of a paste layer by enhancing the adhesion of the paste layer to a punched metal sheet. SOLUTION: In this nickel-hydrogen secondary battery having an electrode group 5 composed by spirally winding a paste negative electrode 4 made by applying paste containing hydrogen storage alloy powder and a binder to both surfaces of a punched metal sheet and drying it and winding them, and a positive electrode 2 interposing a separator between them, the punched metal sheet has a structure that a porous core material sheet is covered with a rustproof film, and its feature is that the Vickers hardness of the porous material sheet is 60-100 Hv, and the Vickers hardness of the rustproof film is 80-120 Hv and is higher than that of the core material sheet.

7. 发明专利

JP2000077065A Manufacture of nickel hydrogen secondary battery 审中-公开
标题翻译：镍氢二次电池的制造
公开(公告)号：JP2000077065A
公开(公告)日：2000-03-14
申请号：JP24475398
申请日：1998-08-31
申请人： Toshiba Battery Co Ltd , 東芝電池株式会社
发明人： TAKAHASHI HIROYUKI , SATO TSUTOMU , TAKAHASHI TATSU
IPC分类号： H01M4/38 , H01M4/26 , H01M4/62
CPC分类号： Y02E60/124 , Y02P70/54
摘要： PROBLEM TO BE SOLVED: To suppress an increase in inner pressure in overcharge at a low production cost by manufacturing a negative electrode in a process applying paste containing a hydrogen storage alloy having a fluorine compound and a carbon material on the surface to a current collector.
SOLUTION: A negative electrode is manufactured in such a way that paste is prepared by adding a binder and a conductive material to hydrogen storage alloy powder having a fluorine compound and a carbon material on the surface, kneading them together with water, the paste is applied to a current collector, dried, then they are rolled. The fluorine compound forms a water repellent interface against an electrolyte on the alloy surface to ensure the contact of the alloy metal surface and a gas phase, and oxygen gas absorbing performance of the alloy is enhanced. As the fluorine compound, PTFE is listed. The content of the fluorine compound is preferable to be 0.1-2.0 wt.% based on the weight of the alloy. The carbon material enhances oxygen gas reduction capability of the alloy, and carbon black and graphite are listed. The content of the carbon material is preferable to be 0.1-2.0 wt.% based on the weight of the alloy.
COPYRIGHT: (C)2000,JPO
摘要翻译：要解决的问题：通过在包含表面上含有氟化合物和碳材料的储氢合金的糊剂中将负极制造成集电体，以低的制造成本来抑制过充电中的内压增加。解决方案：制造负极，通过向表面上具有氟化合物和碳材料的储氢合金粉末中加入粘合剂和导电材料来制备糊料，并将其与水一起捏合，施加糊料到集电器，干燥，然后它们被滚动。氟化合物与合金表面上的电解质形成防水界面，以确保合金金属表面与气相的接触，并提高合金的氧气吸收性能。作为氟化合物，列出了PTFE。相对于合金的重量，氟化合物的含量优选为0.1〜2.0重量％。碳素材料可提高合金的氧气还原能力，并列出炭黑和石墨。相对于合金的重量，碳材料的含量优选为0.1〜2.0重量％。

8. 发明专利

JPH10116626A MANUFACTURE OF NICKEL HYDROGEN SECONDARY BATTERY 失效
公开(公告)号：JPH10116626A
公开(公告)日：1998-05-06
申请号：JP27006296
申请日：1996-10-11
申请人： TOSHIBA BATTERY
发明人： YUKIZONO TOSHIJI , TAKAHASHI HIROYUKI , TAKAHASHI TATSU , SATO TSUTOMU
IPC分类号： H01M4/26 , H01M10/28 , H01M10/30
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a nickel hydrogen secondary battery in which the occurrence of failure resulting from the separation of negative electrode layers of the winding-start end portion and the winding-end end portion side of a negative electrode in an electrode group manufacturing process. SOLUTION: A separator 6 is caused to intervene between a positive electrode 7 and a negative electrode 5 in which a punched metal board is coated by a negative electrode layer containing hydrogen storage alloy so as to laminate, the laminated matter thereof is spiral-like wound so that the negative electrode 5 is positioned outside in one pair of electrode group hold block, the outer peripheral face of the spiral electrode group is held by the one pair of blocks, and further the electrode group 8 is contained in a cylindrical vessel with bottom so as to manufacture an alkaline secondary battery. In the manufacturing method of the same, the negative electrode 5 is formed by coating the punched metal board having no punched plain portions on a winding-start end portion and a winding-end end portion side with the negative electrode layer containing the hydrogen storage alloy excluding at least one part or all of the winding-end side plain portion out of the plain portions.

9. 发明专利

JPH08227706A MANUFACTURE OF ALKALINE SECONDARY BATTERY 失效
公开(公告)号：JPH08227706A
公开(公告)日：1996-09-03
申请号：JP3366495
申请日：1995-02-22
申请人： TOSHIBA BATTERY
发明人： KIYAMA YOSHIHIRO , USAMI HIDEKI , SATO TSUTOMU
IPC分类号： H01M2/16 , H01M10/24
摘要： PURPOSE: To provide a manufacturing process of an alkaline secondary battery having a separator capable of suppressing moisture absorption before being incorporated into the secondary battery and quickly absorbing an objective amount of an electrolyte. CONSTITUTION: A manufacturing process of an alkaline secondary battery comprising a positive electrode, a negative electrode, a separator placed between both electrodes, and an alkaline electrolyte. The separator is manufactured in such processes that a nonwoven fabric is manufactured in a dry process from polyolefin fibers attached with an antistatic agent containing an anionic surfactant, the antistatic agent is removed from the nonwoven fabric by washing, then a nonionic surfactant is attached to the nonwoven fabric.

10. 发明专利

JP2000012009A MANUFACTURE OF ALKALINE SECONDARY BATTERY 失效
公开(公告)号：JP2000012009A
公开(公告)日：2000-01-14
申请号：JP17470798
申请日：1998-06-22
申请人： TOSHIBA BATTERY
发明人： SATO TSUTOMU , TAKAHASHI HIROYUKI , FUJIMORI YASUNORI , TAKAHASHI TATSU
IPC分类号： H01M4/26
摘要： PROBLEM TO BE SOLVED: To provide the manufacturing method of an alkaline secondary battery capable of suppressing the elongation of a negative electrode in rolling, increasing the density of the negative electrode, and increasing the capacity. SOLUTION: A negative electrode is prepared in a process for filling paste containing a hydrogen storage alloy in a conductive substrate, a process for drying the conductive substrate filled with the paste, and a process for pressing once the conductive substrate filled with the paste so that the compression the efficiency is 20-70%.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式