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1. 发明专利

JPH03145058A PASTE TYPE NICKEL POSITIVE ELECTRODE 失效
公开(公告)号：JPH03145058A
公开(公告)日：1991-06-20
申请号：JP28167189
申请日：1989-10-31
申请人： TOSHIBA BATTERY , TOSHIBA CORP
发明人： HATA KATSUYUKI , YOSHIDA KAZUHIRO , ISAWA KOJI , HASEBE HIROYUKI , SASAKI KUNIHIKO
IPC分类号： H01M4/52 , H01M4/32 , H01M4/62 , H01M10/30
摘要： PURPOSE:To prevent sudden oxidation reaction in an atmosphere containing oxygen and to obtain good activity by using paste containing nickel hydroxide as a main active material and also containing cobalt monoxide whose surface is covered with a higher cobalt oxide layer. CONSTITUTION:Paste containing nickel hydroxide as a main active material and also containing cobalt monoxide whose surface is covered with a higher cobalt oxide layer is used. Even if the paste is exposed in the air, oxidation reaction progresses only gradually. Since an oxide other than higher oxide is rarely produced, the manufacture of an electrode in a specific atmosphere is made unnecessary and the electrode is manufactured in the normal atmosphere. In addition, the storage performance of cobalt monoxide is increased. Sudden oxidation reaction in an atmosphere containing oxygen is prevented and good activity is obtained.

2. 发明专利

JPH0353448A MANUFACTURE OF CLOSED TYPE ALKALINE STORAGE BATTERY 失效
公开(公告)号：JPH0353448A
公开(公告)日：1991-03-07
申请号：JP18831189
申请日：1989-07-20
申请人： TOSHIBA BATTERY , TOSHIBA CORP
发明人： HATA KATSUYUKI , ISAWA KOJI , YOSHIDA KAZUHIRO , HASEBE HIROYUKI , SASAKI KUNIHIKO
IPC分类号： B01J19/10 , H01M2/36
摘要： PURPOSE:To shorten the injecting time for an electrolyte by receiving an electrode group prepared through the process of combining positive and negative- pole electrodes together, with a separator interposed therebetween, in a canning body and subsequently injecting the electrolyte into the canning body while applying ultrasonic waves to the canning body. CONSTITUTION:Ultrasonic waves are applied to a canning body 1 in injecting an electrolyte into the canning body 1 to be permeated into positive and negative-pole electrodes and also into a separator after receiving an electrode group 2 prepared through the process of combining the positive and negative- pole electrodes together, with the separator interposed therebetween, in the canning body 1. Since the surface tension of the electrolyte to the separator and to the like can be accordingly lowered, the electrolyte can be quickly permeated into both the separator and the electrodes. Since also air present in the electrodes and in the separator, both received in the canning body, can be speedily removed permeability of the electrolyte can be expedited. The injecting time for the electrolyte can thus be shortened to mass-produce a storage battery.

3. 发明专利

JPH02253555A MANUFACTURE OF ORIGINAL BODY FOR CELL ELECTRODE PLATE 失效
公开(公告)号：JPH02253555A
公开(公告)日：1990-10-12
申请号：JP7165489
申请日：1989-03-27
申请人： TOSHIBA BATTERY
发明人： ISAWA KOJI , HATA KATSUYUKI , YOSHIDA KAZUHIRO
IPC分类号： H01M4/04 , H01M4/26
摘要： PURPOSE:To manufacture the original body for electrode of a good performance industically and continuously by feeding metallic belts continuously in the longitudinal direction of a long size electrode base plate of a three-dimensional net- form structure, applying a pressure to it to attach to the electrode base plate from the upper and the lower sides, and forming a plain part. CONSTITUTION:At the position to form a plain part at a long size electrode base plate 1 of a three-dimensional net-form structure of a foamy metal plate, for example, a necessary number of metallic belts 2, two lines for example, are pressed to attach to the base plate 1 continuously in the longitudinal direction, and a pressure is applied from the lower and the upper sides by rolls 3 and 3'. The base plate 1 to which the metallic belts 2 are attached, after this pressurizing process, passes through an active substance filling device 4 and pressure application devices 5 and 5 ' to give an uneven form to the plain part, and an original body for cell electrode is formed through roller press devices 6 and 6' which press the whole body. Consequently, the electrode plate can be punched and formed at a high yield rate without generating a crack at the borders between the plain part and the neighboring parts.

4. 发明专利

JPH02227960A MANUFACTURE OF NONSINTERED ELECTRODE FOR ALKALINE STORAGE BATTERY 失效
公开(公告)号：JPH02227960A
公开(公告)日：1990-09-11
申请号：JP4728389
申请日：1989-02-28
申请人： TOSHIBA CORP , TOSHIBA BATTERY
发明人： HASEBE HIROYUKI , YOSHIDA KAZUHIRO , HATA KATSUYUKI , ISAWA KOJI , SASAKI KUNIHIKO
IPC分类号： B23K11/06 , B23K9/00 , B23K11/24 , B23K35/04 , H01M4/26
摘要： PURPOSE:To strongly weld a ribbon-shaped metal strip to a conductive core by bringing a welding disk electrode formed by interposing an insulating disk between two disk electrodes into contact with the ribbon-shaped metal strip placed on the conductive core, and by supplying electricity to each electrode from a power source. CONSTITUTION:A ribbon-shaped metal strip 12 is supplied to a part to be welded of a conductive core 11 filled with a pasty material, and a welding disk electrode 13 is brought into contact with the metal strip 12. The welding electrode 13 is formed by interposing an insulating disk 14 between two disk electrodes 151, 152. When electricity is passed from a welding power source 16 to the electrodes 151, 152 insulated with the disk 14 while the disk electrode 13 is rotated, electricity flows from the electrode 151 to the electrode 152, and the metal strip 12 is welded to the conductive core 11 by Joule heat. The ribbon- shaped metal strip 12 is strongly welded to the conductive core 11.

5. 发明专利

JPH01320762A NICKEL ELECTRODE FOR ALKALINE STORAGE BATTERY 失效
公开(公告)号：JPH01320762A
公开(公告)日：1989-12-26
申请号：JP15226088
申请日：1988-06-22
申请人： TOSHIBA CORP , TOSHIBA BATTERY
发明人： SASAKI KUNIHIKO , HASEBE HIROYUKI , KANDA MOTOI , ISAWA KOJI , HATA KATSUYUKI , YOSHIDA KAZUHIRO
IPC分类号： H01M4/80
摘要： PURPOSE:To obtain a nickel electrode having sufficient mechanical strength, high utility of active material, and high capacity density by forming a conductive core with a metal fiber porous sinter having three dimensional continuous voids, and specifying the weight per area of metal fibers in a nickel electrode. CONSTITUTION:Metal fibers such as nickel fibers and nickel-plated carbon fibers are formed in a nonwoven fabric sheet, and sintered in a reducing atmosphere to manufacture a metal fiber porous sinter having three dimensional continuous voids. This sinter is used as a conductive core. The weight per area of metal fibers in a nickel electrode is specified to 400-700g/m . Since the metal fiber porous sinter has layered metal short fibers, it has sufficient durability and mechanical strength. Since the contact area of active material with the current collector is increased, electronic conductivity and capacity density are increased.

6. 发明专利

JPH03201367A MANUFACTURE OF PASTE TYPE ELECTRODE 失效
公开(公告)号：JPH03201367A
公开(公告)日：1991-09-03
申请号：JP33622889
申请日：1989-12-27
申请人： TOSHIBA BATTERY
发明人： YOSHIDA KAZUHIRO , HATA KATSUYUKI , ISAWA KOJI
IPC分类号： H01M4/26 , H01M2/26 , H01M4/28
摘要： PURPOSE:To efficiently and stably form a highly reliable paste type electrode for use in an alkaline storage battery by continuously welding a ribbon-shaped metal piece by means of ultrasonic seam. CONSTITUTION:The portion of a nickel sintered fiber base serving as a current collecting portion is initially compressed into a sheet metal by a roller to form a plain portion 2, the nickel sintered fiber base being a conductive porous base of three-dimensional structure. The nickel sintered fiber base is filled with a paste containing active material and then the paste on the plain portion 2 is removed and the base is dried and pressed to fabricate a filled base 1. A ribbon-shaped metal piece 3 formed of a nickel-plated steel plate serving as both a current collector and a reinforcing material is made to abut on the rotating chip 4 of an ultrasonic seam welding machine and is given ultrasonic vibration in such a manner as making the piece 3 perpendicular to the longitudinal direction of the plain portion 2, and the base 1 is moved at A speed of 1m/1min and then welding is carried out. Thereby a highly reliable paste type electrode is efficiently and stably obtained.

7. 发明专利

JPH01246762A MANUFACTURE OF PASTED ELECTRODE 失效
公开(公告)号：JPH01246762A
公开(公告)日：1989-10-02
申请号：JP7534988
申请日：1988-03-29
申请人： TOSHIBA BATTERY
发明人： ISAWA KOJI , YOSHIDA KAZUHIRO
IPC分类号： H01M4/04 , H01M4/26
摘要： PURPOSE:To obtain a pasted electrode with high performance and long lifetime by after charging a pasted electrode substrate having three-dimensional structure with past, passing the substrate through a pair of rollers so as to effectively and stably remove the past charged adjacent to the surface of the substrate and restrain the substrate from expansion when the electrode is charged/ discharged. CONSTITUTION:Past 4 is put into a hopper 1. An electrode substrate 5 made of sintered nickel fiber having three-dimensional structure is passed through the past 4 from the hole of the bottom of the hopper 1 at a constant speed. Rollers 2a and 2b for past-charging are revolved in a direction indicated by arrows while the electrode substrate 5 is transferred upwards to charge the electrode substrate 5 with the past 4. Further, the electrode substrate 5 is passed through rollers 3a and 3b for past-removing which are revolving in a direction indicated by arrows. Thus, the past charged adjacent to the surface of the substrate is effectively and stably removed and expansion of the substrate when the electrode is charged/discharged is restrained. Therefore, the pasted electrode with high performance and long lifetime is obtained.

8. 发明专利

JPH03233857A MANUFACTURE OF NON-SINTERED TYPE ELECTRODE 失效
公开(公告)号：JPH03233857A
公开(公告)日：1991-10-17
申请号：JP2595890
申请日：1990-02-07
申请人： TOSHIBA BATTERY , TOSHIBA CORP
发明人： HASEBE HIROYUKI , HATA KATSUYUKI , YOSHIDA KAZUHIRO , ISAWA KOJI , SASAKI KUNIHIKO
IPC分类号： H01M4/26 , H01M4/04 , H01M4/32
摘要： PURPOSE:To obtain a non-sintered electrode of excellence in mechanical strength and electrical property at high yield by applying lines of magnetic force to a long conductive substrate with a three-dimensional structure and increasing and decreasing the flux density of magnetic force lines which is permeable corresponding to the metal density of the conductive substrate, as a ferro-magnetic substance. CONSTITUTION:A magnetism generating member 1 and a magnetism detector 3 placed on the opposite side thereof with a conductive substrate 2 between detect the flux density of magnetic force line which are permeated the conductive substrate 2 for output to a computer 4, which computes the metal density of the conductive substrate 2 to measure the metal density. In addition, the computer 4 stores the measured values as well as the position of the conductive substrate 2 as its measurement data, defines the conductive substrate 2 the measured value of which cannot be held in a preset controlled width as a defective point and outputs instruction signals for removing the defective point of a paste active material filled substrate that paste active material is filled in the conductive subtrate 2. It is thus possible to obtain a non-sintered electrode of excellent in mechanical strength and electrical property at a high yield.

9. 发明专利

JPH03201366A MANUFACTURE OF PASTE TYPE ELECTRODE 失效
公开(公告)号：JPH03201366A
公开(公告)日：1991-09-03
申请号：JP33622789
申请日：1989-12-27
申请人： TOSHIBA BATTERY
发明人： YOSHIDA KAZUHIRO , HATA KATSUYUKI , ISAWA KOJI
IPC分类号： H01M4/26 , H01M4/04 , H01M4/30
摘要： PURPOSE:To prevent a paste from being drawn during pressing process and also obtain a paste type electrode of high capacity by carrying out pressure molding of the paste in such a manner that when passed between rollers for the first time the paste is pressed to predetermined final thickness by a specific roller press. CONSTITUTION:Nickel hydroxide is used as active material and nickel powder and carboxymethyl cellulose serving as a thickener are added thereto in respective predetermined amounts and pure water is further added thereto and mixed to form a paste. The paste is packed in a nickel sintered fiber base and after drying the base is passed between two upper and lower rollers once by a two- stage roller press 100mm in diameter and having the upper and lower rollers and is pressed to predetermined final thickness 0.6mm to obtain a nickel electrode. Preferably, the diameter of each roller is 100 to 300mm. Thereby the paste is prevented from being drawn during pressing and also a paste type electrode of high capacity is obtained.

10. 发明专利

JPH03201365A MANUFACTURE OF PASTE NICKEL POSITIVE ELECTRODE 失效
公开(公告)号：JPH03201365A
公开(公告)日：1991-09-03
申请号：JP33622689
申请日：1989-12-27
申请人： TOSHIBA BATTERY
发明人： ISAWA KOJI , HATA KATSUYUKI , YOSHIDA KAZUHIRO
IPC分类号： H01M4/26 , H01M4/28 , H01M4/32
摘要： PURPOSE:To obtain a nickel positive electrode of high capacity by sandwiching and passing a nickel positive electrode after pressurization between a pair of a hard roller and a soft roller whose surface has flexibility. CONSTITUTION:A hard roller 1 is made from metal or hard resin and a soft roller 2 has its surface made of a layer of flexible rubber or urethane form. The rollers are preferably arranged in such a manner that the roller 1 is located near or makes sealing contact with the roller 2; after pressurization a nickel electrode 3 is inserted between the pair of rollers 1, 2 thus arranged and the positive electrode 3 is curved and deformed as it is sandwiched and passed between the pair of rollers. During this deformation numerous fine cracks 4 are generated in the surface of the positive electrode 3, and the cracks 4 heighten flexibility of the electrode 3 during winding. Thereby a nickel electrode of high capacity is obtained.

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