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

JP2001176560A METHOD OF ADJUSTING CHARACTERISTICS OF LITHIUM ION SECONDARY BATTERY 失效
公开(公告)号：JP2001176560A
公开(公告)日：2001-06-29
申请号：JP35913199
申请日：1999-12-17
申请人： DENSO CORP , TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： ADACHI NORIKAZU , KOJIMA HISANAO , INOUE TOSHIHIKO , NAKANO AKIRA
IPC分类号： H02J7/02 , H01M4/36 , H01M10/05 , H01M10/052 , H01M10/0525 , H01M10/058 , H01M10/44 , H02J7/04
摘要： PROBLEM TO BE SOLVED: To provide a method of stabilizing battery characteristics of a lithium ion secondary battery comprising a lithium-metal complex oxide as a positive electrode active material. SOLUTION: The battery characteristics of the lithium ion secondary battery having a positive electrode with a lithium-metal complex oxide to absorb and discharge lithium ion and a negative electrode to absorb and discharge lithium ion are adjusted by charging and discharging for plural times. In charging/ discharging, the volume of electricity to be charged and discharged each time is 20% or lower than the rated capacity of the lithium ion secondary battery as 100%, and the crystal structure of the lithium-metal complex oxide varies at the time of charging/discharging. Therefore, by stabilizing the crystal structure of the lithium-metal complex oxide used as the positive electrode active material, the battery characteristics are stabilized.

2. 发明专利

JP2001102025A ENCLOSED ELECTRIC CELL 失效
公开(公告)号：JP2001102025A
公开(公告)日：2001-04-13
申请号：JP27598299
申请日：1999-09-29
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , DENSO CORP
发明人： WATANABE GORO , NAKANO AKIRA , SAEKI TORU , NOZAKI KO , TAKEUCHI TOMOYASU
IPC分类号： H01M2/12 , H01M2/30 , H01M10/04
摘要： PROBLEM TO BE SOLVED: To provide an enclosed electric cell which may reduce the number of components without losing the function of a safety device. The safety device is provided as a separate component, which discharge internal gas within the cell into outside environment when internal pressure within the cell is higher than a specific pressure so as to prevent unpredictable situation in that the cell is exploded due to abnormality within the cell. SOLUTION: An external terminal 1 of a closed electric cell comprises terminal body 10 having a gas exhaust hole 10a connected between internal and external environment of a cell case 3, and enclosed component 11 for closing the gas discharge hole 10a and for discharging the gas within the cell case to the outside when the gas pressure within the cell case 3 exceeds a specific pressure. Therefore, the enclosed cell according to this invention may reduce the number of components attached to the cell by combining the external terminal 1 being a dispensable component of the cell with the function of the safety device.

3. 发明专利

JPH11339756A ELECTRODE WINDING TYPE BATTERY 失效
公开(公告)号：JPH11339756A
公开(公告)日：1999-12-10
申请号：JP14342898
申请日：1998-05-25
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , DENSO CORP
发明人： ITO YUICHI , MASAKI HIDEYUKI , WATANABE GORO , NAKANO AKIRA , NOZAKI KO , AMANO TADAYOSHI , YANO SATOSHI , FUKUDA HAJIME , HASEGAWA TAKESHI
IPC分类号： H01M2/22 , H01M2/26 , H01M10/04 , H01M10/05 , H01M10/0587 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a light-weight electrode winding type battery having no need to use additional components for current collecting processing, and having small electric resistance. SOLUTION: This battery has an electrode body 50 composed of a strip positive electrode and a negative electrode, a separator sandwiched between the positive electrode and the negative electrode, and a winding core 40 around which the positive electrode, the negative electrode and the separator are wound. Here, the winding core 40 is electrically conductive. At least one of the positive electrode and the negative electrode have current collecting leads 14, 24 extending from an end part of a winding end surface 51 of the electrode body 40 to the longitudinal direction of the winding core 40. The current collecting leads 14, 24 are bonded to a portion of the winding core 40 projecting from the winding end surface 51 of electrode body 50.

4. 发明专利

JP2001135358A SEALED SECONDARY BATTERY 失效
公开(公告)号：JP2001135358A
公开(公告)日：2001-05-18
申请号：JP35398999
申请日：1999-12-14
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , DENSO CORP
发明人： WATANABE GORO , NAKANO AKIRA , EBINE YOSHIAKI , INOUE TOSHIHIKO , TAKEUCHI TOMOYASU
IPC分类号： H01M2/08 , H01M2/12 , H01M2/30 , H01M10/02 , H01M10/04 , H01M10/05 , H01M10/0587 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a sealed secondary battery, wherein a sealing structure of the battery possesses a safety valve function. SOLUTION: An electrode generation body 16 in which a positive electrode sheet and a negative electrode sheet are overlapped through a separator sheet is attached inside a cylindrical electric tank can 12 made of an aluminum material with a bottom. A negative electrode side collector terminal material 24 which is electrically connected with the negative sheet of the electrode generation body 16 is projected out of an inner bottom of the electric tank can 12. A lid 28 for sealing an opening of a positive electrode side collector terminal material 22 which is electrically connected with the positive electrode sheet of the electrode generation body 16 is welded in a sealed manner at a positive electrode side open edge of the electric tank can 12 by radiating laser light with such a strength that can be damaged by a previously set specified inner pressure that is to say about 15 to 20 kgf/cm2.

5. 发明专利

JP2001084990A ROLLED ELECTRODE TYPE BATTERY 失效
公开(公告)号：JP2001084990A
公开(公告)日：2001-03-30
申请号：JP25790799
申请日：1999-09-10
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , DENSO CORP
发明人： ITO YUICHI , WATANABE GORO , NAKANO AKIRA , EBINE YOSHIAKI , SUGIE JUNJI , TAKEUCHI TOMOYASU
IPC分类号： H01M2/26 , H01M10/04 , H01M10/05 , H01M10/0587
摘要： PROBLEM TO BE SOLVED: To provide a rolled electrode type battery, using a method superior in energy weight/volume density as a method for collecting currents from plural current collecting leads. SOLUTION: This battery comprises an electrode body, formed by overlapping and rolling a band-like positive electrode 33 and negative electrode 34, and plural strip-like current collecting leads 31, 32 formed at widthwise one end of at least one of the positive electrode 33 and negative electrode 34. In this case, the battery has one or more lead current collection plates 21, 22 disposed nearly in parallel with and on at least one of the rolling end faces where the leads 31, 32 of the electrode body are formed, and the leads 31, 32 are bent in the radial direction of the electrode body and respectively have parallel parts oriented in parallel with the surfaces of the lead current collection plates 21, 22 at parts of the leads 31, 32, and the parallel parts are respectively jointed to the surfaces of the lead current collection plates 21, 22.

6. 发明专利

JP2000353539A ELECTRODE WOUND TYPE SECONDARY BATTERY 失效
公开(公告)号：JP2000353539A
公开(公告)日：2000-12-19
申请号：JP16384599
申请日：1999-06-10
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP
发明人： WATANABE GORO , EBINE YOSHIAKI , NAKANO AKIRA , MATSUMOTO YOSHIAKI
IPC分类号： H01M4/04 , H01M4/36 , H01M10/04 , H01M10/05 , H01M10/0587 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To manufacture with high production efficiency an electrode wound type secondary battery of improved volumetric mounting efficiency as a cell. SOLUTION: In this electrode wound type secondary battery provided with an electrode power generating body with a positive electrode sheet 40 and a negative electrode sheet 44 spirally wound around a shaft center via a separator sheet 48, the shaft center is dividually formed so that a positive electrode terminal shaft 36 integrally provided with a positive electrode terminal 26 and a negative electrode terminal shaft 38 integrally provided with a negative electrode terminal 18 confront each other, a positive electrode active material uncoated area 42 of a winding start end rim of the positive electrode sheet 40 is bonded to the positive electrode terminal shaft 36, a negative electrode active material uncoated area 46 of a winding start end rim of the negative electrode sheet 44 is bonded to the negative electrode terminal shaft 38, and the sheets are wound around the shaft center.

7. 发明专利

JP2000260417A LAMINATED BATTERY 失效
公开(公告)号：JP2000260417A
公开(公告)日：2000-09-22
申请号：JP6549599
申请日：1999-03-11
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , DENSO CORP
发明人： ITO YUICHI , MASAKI HIDEYUKI , WATANABE GORO , NAKANO AKIRA , NOZAKI KO , TAKEUCHI TOMOYASU
IPC分类号： H01M2/26 , H01M2/22 , H01M10/05 , H01M10/0585 , H01M10/0587
摘要： PROBLEM TO BE SOLVED: To provide a laminated battery having an inexpensive manufacturing cost, high energy density and output density, and capable of reducing manhours required for a current collecting work and also lessening a dead space for a current collecting process and the weight of the battery itself. SOLUTION: In a laminated battery having a laminated electrode 50 formed by laminating a positive electrode sheet and a negative electrode sheet, a current collection processing method is adopted. In this method, the laminated electrode 50 is formed by laminating electrode sheets provided with portions forming no electrode mix layer, this portion forming no electrode mix layer 13 (23) that is a portion comprising a metal foil collector only is protruded, in addition, this portion is overlapped by bending it parallel to the laminated end surface of the laminated electrode body 50, and a sheet collecting terminal member 60 is joined to the overlapped portion.

8. 发明专利

JP2000231913A CYLINDRICAL BATTERY 失效
公开(公告)号：JP2000231913A
公开(公告)日：2000-08-22
申请号：JP3342799
申请日：1999-02-10
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , DENSO CORP
发明人： WATANABE GORO , MASAKI HIDEYUKI , HIOKI TATSUMI , NAKANO AKIRA , ITO YUICHI , NOZAKI KO , TAKEUCHI TOMOYASU
IPC分类号： H01M2/22 , H01G11/00 , H01G11/08 , H01G11/22 , H01G11/66 , H01G11/68 , H01G11/70 , H01G11/74 , H01G11/82 , H01G11/84 , H01G11/86 , H01M2/02 , H01M2/26 , H01M2/30 , H01M6/02 , H01M10/04
摘要： PROBLEM TO BE SOLVED: To provide a cylindrical battery excellent in sealablity less expensive in current collection, with high output density and high energy density. SOLUTION: This cylindrical battery is constituted wherein an electrode piled layer non-forming part 23 of one electrode sheet wound is overlappedly joined to an outer side face 51 of a collector terminal 50 positioned at a wound center of an electrode body 40 and an under end face 53 of the collector terminal 50 is joined to the inner wall surface of a bottom 61 of a battery can 60. An electrode piled layer non-forming part 13 of the other electrode sheet is similarly constituted to be overlappedly joined to an outer side face 56 of a collector terminal 55 positioned at a wound center of the electrode body 40.

9. 发明专利

JP2002042742A MANUFACTURING METHOD OF SEALED BATTERY 失效
公开(公告)号：JP2002042742A
公开(公告)日：2002-02-08
申请号：JP2000230327
申请日：2000-07-31
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP
发明人： WATANABE GORO , NAKANO AKIRA , SUGIE JUNJI
IPC分类号： H01M2/02 , H01M2/04
摘要： PROBLEM TO BE SOLVED: To provide a method for easily manufacturing a sealed battery constituted by furnishing a battery case excellent in connecting strength and in a closing property, by preventing coagulation cracking on a welding finishing part in laser welding of an armoring can and a cover plate constituting the battery case of the closed battery. SOLUTION: The laser welding is finished by moving a laser spot to a position where a molten pool produced by the laser spot by overlapping OL it on a welding bead after the laser spot arrives at a welding starting point SP again in a process to carry out continuous overall laser welding on the armoring can 21 and the cover plate 22 by forming the welding bead while moving the laser spot along a welding line WL to be a boundary of both of the armoring can 21 and the cover plate 22 to contact with each other under the manufacturing method of the closed battery having the battery case furnished with the cylindrical metallic armoring can 21 and the metallic cover plate 22 to be connected to an opening end part of the armoring can 21 and to close an electrode body inside.

10. 发明专利

JP2000228182A ELECTRODE-WOUND TYPE BATTERY AND ITS MANUFACTURE 失效
公开(公告)号：JP2000228182A
公开(公告)日：2000-08-15
申请号：JP2794899
申请日：1999-02-04
申请人： TOYOTA CENTRAL RES & DEV , TOYOTA MOTOR CORP , DENSO CORP
发明人： WATANABE GORO , MASAKI HIDEYUKI , HIOKI TATSUMI , ITO YUICHI , NAKANO AKIRA , NOZAKI KO , AKIMOTO AKITO
IPC分类号： H01M2/22 , H01M2/26 , H01M2/30 , H01M6/02 , H01M10/04
摘要： PROBLEM TO BE SOLVED: To provide an electrode-wound type battery having a short working time required for a current-collecting treatment, and having a high output density and a high energy density. SOLUTION: This electrode-wound type battery having an electrode body 50 formed by winding a positive electrode sheet 10 and a negative electrode sheet 20, having respective belt-shaped metal foil collectors and respective electrode plied materials coated on the surfaces thereof, and a separator 30 interposed between the positive electrode sheet 10 and the negative electrode sheet 20, spirally around a core 40, is composed so that at least one of the positive electrode sheet 10 and the negative electrode sheet 20 is formed in a body continuously in the width direction, and has an electrode plied material uncoated part 13 (23) with a prescribed width extending over the whole length on one end part in width direction, and that the electrode plied material uncoated part 13 (23) is wound so as to be projected from the other side of the separator 30, the positive electrode sheet 10 and the negative electrode sheet 20, and that the electrode plied material uncoated part 13 (23) is joined to a collecting terminal 40 so as to be superposed.

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