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

JPH11329441A NON-AQUEOUS ELECTROLYTE SECONDARY CELL 失效
公开(公告)号：JPH11329441A
公开(公告)日：1999-11-30
申请号：JP13037598
申请日：1998-05-13
申请人： TOSHIBA CORP , TOSHIBA BATTERY
发明人： SAKURAI KATSUYUKI , OSAKI TAKAHISA
IPC分类号： C08L27/16 , H01M4/13 , H01M4/62 , H01M10/05 , H01M10/0525 , H01M10/0566 , H01M4/02 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To obtain a non-aqueous electrolyte battery having high reliability by removing the occurrence of a crack of electrodes or falling-off of active material. SOLUTION: This non-aqueous electrolyte secondary cell is equipped, as a cell element part 3, with a positive electrode 4 composed by carrying a mixture of positive electrode active material containing Li and a binder on a collector, a negative electrode 5 composed by carrying a mixture of negative electrode active material and a binder on the collector, and non-aqueous electrolysis solution. In this case, binders, composing either or both electrodes 4 and/or 5 between both electrodes 4, 5 of this non-aqueous electrolytic solution secondary cell, are at least either one kind between a vinylidene fluoride-trifluoroethylene copolymer and a vinylidene fluoride-tetrafluoroethylene copolymer.

2. 发明专利

JPH09245759A NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH09245759A
公开(公告)日：1997-09-19
申请号：JP5476496
申请日：1996-03-12
申请人： TOSHIBA CORP , TOSHIBA BATTERY
发明人： SATO YUICHI , SATO YUJI , OSAKI TAKAHISA , KURATA YASUTAKE , SUZUKI JUN , ASAMI YOSHIAKI
IPC分类号： H01M2/12 , H01M10/04 , H01M10/05 , H01M10/0566 , H01M10/0587 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery provided with a relief valve mechanism certainly break at a prescribed operating pressure and holding a good strength against fall-down shock. SOLUTION: This secondary battery is provided with a cylindrical exterior can 1 with its bottom, an electrode body 2 stored in the exterior can 1 and winding a separator and a negative pole 5 in the convolution shape, a non- aqueous electrolyte accommodated in the exterior can 1, a sealing nose body 9 provided at the upper end opening of the exterior can 1 and having an opened pressure release hole 8 is opened, and a thin plate 13 mounted on the sealing nose body 9 so as to occlude the hole 8 and having a formed cutout groove. The thin plate 1 is mounted so that the opening of the cutout groove 14 is bent toward inside the exterior can 1.

3. 发明专利

JPH08339824A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH08339824A
公开(公告)日：1996-12-24
申请号：JP14313095
申请日：1995-06-09
申请人： TOSHIBA CORP , TOSHIBA BATTERY
发明人： TAKAMI NORIO , OSAKI TAKAHISA , ASAMI YOSHIAKI
IPC分类号： H01M10/05 , H01M4/587 , H01M10/0568 , H01M10/0569 , H01M10/40
摘要： PURPOSE: To provide a nonaqueous electrolyte secondary battery which is excellent in suppression of gas generation at first charge time, a high temperature storage characteristic, and a cycle life by improving nonaqueous electrolyte. CONSTITUTION: Nonaqueous electrolyte is provided with a positive electrode 4, a negative electrode 6 made of carbonacious substance storing and discharging lithium ions, and nonaqueous electrolyte. In this nonaqueous secondary battery, lithium hexafluoro-phosphate (LiPf6 ) is dissolved as electrolyte in nonaqueous solvent containing 0.1 to 8 percentage by volume of γ-butyrolactone so as to form the nonaqueous electrolyte.

4. 发明专利

JPH04206167A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH04206167A
公开(公告)日：1992-07-28
申请号：JP32816690
申请日：1990-11-28
申请人： TOSHIBA BATTERY , TOSHIBA CORP
发明人： KURISU NORIHITO , INADA KUNIAKI , OSAKI TAKAHISA , TAKAMI NORIO
IPC分类号： H01M10/05 , H01M4/48 , H01M4/58 , H01M4/587 , H01M10/052 , H01M10/0568 , H01M10/0569
摘要： PURPOSE:To obtain a secondary battery having an excellent charge/discharge cycle life and a high capacity by using a material obtained by mixing a prescribed mix volume of acetonitrile with one kind among ethylene carbonate, propylene carbonate or butylene carbonate as nonaqueous solvent. CONSTITUTION:A carbonaceous material of a negative electrode 3 in a nonaqueous electrolyte secondary battery is made to bear Li thereon, and a chalcogen compound such as Mn oxide is contained in a positive electrode 1 as an active material, and hexafluoride lithium phosphate is used as nonaqueous electrolyte after about 0.5-1.5 mole/l of it is dissolved into nonaqueous solution as electrolyte. The nonaqeous solution is formed by mixing acetonitrile of about 10-60volume% with one kind among ethylene carbonate, propylene carbonate and butylene carbonate. At this time, diameter of an Li ion solvation complex in the nonaqueous electrolyte can be reduced. Thereby, the complex can infiltrate easily between layers of a carbonic material of the negative electrode 3 so that storage/emission volume of Li ion can be increased at the negative electrode. Moreover, since there is no reactivity between the nonaqueous solution and the carbonic material, a structure of the carbonic material can be kept in an excellent condition so that the secondary battery having high capacity can be made.

5. 发明专利

JPH0378976A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH0378976A
公开(公告)日：1991-04-04
申请号：JP21559389
申请日：1989-08-22
申请人： TOSHIBA CORP , TOSHIBA BATTERY
发明人： TAKAMI NORIO , OSAKI TAKAHISA , KURISU NORIHITO , INADA KUNIAKI
IPC分类号： H01M10/05 , H01M10/0568 , H01M10/0569
摘要： PURPOSE:To lengthen charge-discharge cycle life by using lithium borofluoride as an electrolyte and a mixture of ethylene carbonate and 2-methyl- tetrahydrofuran as a nonaqueous solvent and by specifying the ratio of ethylene carbonate. CONSTITUTION:Lithium borofluoride(LiBF4) is used as an electrolyte and a mixture of ethylene carbonate and 2-methyltetrahydrofuran as a nonaqueous solvent, and in addition the volume ratio of ethylene carbonate is specified to more than 50% and up to 80%. The concentration of the lithium borofluoride (LiBF4) in the mixed solvent is specified to 0.2-1.5 mole/liter because decrease in conductivity and decrease in charge-discharge efficiency may occur. The electrolyte obtained is brought into contact with an insoluble adsorber and/or conducted with electricity passing treatment before it is poured in a battery container. By this treatment, deterioration of a lithium electrode is remarkably retarded, and charge-discharge cycle life and storage life are increased.

6. 发明专利

JPH0883608A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JPH0883608A
公开(公告)日：1996-03-26
申请号：JP21877994
申请日：1994-09-13
申请人： TOSHIBA BATTERY , TOSHIBA CORP
发明人： NOSE HIROYOSHI , SUZUKI JUN , OSAKI TAKAHISA , TAKAMI NORIO
IPC分类号： H01M10/05 , C01B31/02 , C01B31/04 , H01M4/587 , H01M4/96 , H01M4/02 , H01M4/58 , H01M10/40
摘要： PURPOSE: To provide excellent battery characteristics such as a large capacity, high charging/discharging efficiency, a long cycle life, and a flat discharging voltage by forming the carbonaceous material used for a negative electrode with the mixture of two kinds of specific carbonaceous materials. CONSTITUTION: This lithium secondary battery is constituted of a negative electrode made of a carbonaceous material storing and releasing lithium ions, a positive electrode, and a nonaqueous electrolyte. The carbonaceous material is made of the mixture of two kinds of carbonaceous materials, and one of them is the graphitized mesophase pitch carbon fiber powder having the average fiber length of 10-100μm, the average fiber diameter of 4-15μm, and the spacing less than 0.338nm of the (002) plane by the X-ray diffraction method. The other carbonaceous material is the carbon powder made of artificial graphite or natural graphite and having the particle size distribution of 15μm or below at 70vol.% or above, the specific surface area less than 3.0m /g, and the spacing less than 0.38nm of the (002) plane by the X-ray diffraction method. The weight ratio between two carbonaceous materials is set to 80-95:20-5.

7. 发明专利

JPH03108261A NONAQUEOUS SOLVENT SECONDARY BATTERY 失效
公开(公告)号：JPH03108261A
公开(公告)日：1991-05-08
申请号：JP24525689
申请日：1989-09-22
申请人： TOSHIBA CORP , TOSHIBA BATTERY
发明人： YAMADA SHUJI , OSAKI TAKAHISA , INADA KUNIAKI , TSUCHIYAMA HITOSHI
IPC分类号： H01M4/505 , H01M10/05 , H01M10/052 , H01M10/0566
摘要： PURPOSE:To make diffusion of lithium ions of a negative electrode to a positive electrode in discharge easy and to increase charge-discharge cycle life and high rate discharge performance by using a specific compound as a positive active material. CONSTITUTION:Divalent metal ions are added to LiMn2O4 to produce defects in the LiMn2O4 spinel structure and to make diffusion of lithium ions of a negative electrode 6 to a positive electrode in discharge easy. A nonaqueous solvent secondary battery having excellent charge-discharge cycle life and high rate discharge performance can be obtained.

8. 发明专利

JPH09320593A NONAQUEOUS ELECTROLYTE SECONDARY BATTERY 失效
公开(公告)号：JPH09320593A
公开(公告)日：1997-12-12
申请号：JP13210996
申请日：1996-05-27
申请人： TOSHIBA BATTERY , TOSHIBA CORP
发明人： KURISU NORIHITO , OSAKI TAKAHISA
IPC分类号： H01M10/05 , C01B31/02 , C01B31/04 , H01M4/587 , H01M10/0525 , H01M10/0566 , H01M4/58 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte lithium secondary battery that has a high capacity and is excellent in battery characteristics such as the flatness of its discharge voltage arid a high charge-discharge life. SOLUTION: In a nonaqueous electrolyte secondary battery having a negative electrode 3c made from a carbonaceous material that stores and releases lithium ions, a nonaqueous electrolyte, and a positive electrode 3a made from a lithium- cohtaining oxide, the negative electrode 3c made form the carbonaceous material is formed from carbon powders in which a graphite structure has a spacing d002 of 0.335 to 0.337nm on its (002) face by X-ray diffraction method, with the peak intensity ratio (P101 /P100 ) of a (101) diffraction peak P101 to a (100) diffraction peak P100 being 1.0 to 1.5, and with the ratio (La/Lc) of the length La of a crystallite in the direction of the (a)-axis to the length Lc of the crystallite in the direction of the (c)-axis being less than 1.5, and which immediately settles when dispersed in ethanol (ethyl alcohol) and held stationary.

9. 发明专利

JPH0778633A SECONDARY BATTERY WITH NONAQUEOUS ELECTROLYTIC SOLUTION 失效
公开(公告)号：JPH0778633A
公开(公告)日：1995-03-20
申请号：JP22192093
申请日：1993-09-07
申请人： TOSHIBA CORP , TOSHIBA BATTERY
发明人： NOSE HIROYOSHI , UCHIDA TAKUMI , OSAKI TAKAHISA , YAMADA SHUJI , TAKAMI NORIO
IPC分类号： H01M4/134 , H01M4/50 , H01M10/05 , H01M10/0566 , H01M10/40 , H01M4/02
摘要： PURPOSE:To provide a nonaqueous electrolytic solution secondary battery which is equipped with a large charge/discharge cycle life, exhibits less self-discharging due to dissolution of electrolytic solution, and excels in the storing characteristics. CONSTITUTION:A secondary battery with nonaqueous electrolytic solution concerned is equipped with negative electrodes using light metal or its alloy as active material, positive electrodes chiefly containing manganese dioxide and/or a composite oxide of manganese and other metal, and a nonaqueous electrolytic solution prepared by dissolving electrolyte in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains manganese component.

10. 发明专利

JPH0773867A NONAQUEOUS SOLVENT SECONDARY BATTERY 失效
公开(公告)号：JPH0773867A
公开(公告)日：1995-03-17
申请号：JP21614693
申请日：1993-08-31
申请人： TOSHIBA BATTERY , TOSHIBA CORP
发明人： OSAKI TAKAHISA , YAMADA SHUJI , NOSE HIROYOSHI , UCHIDA TAKUMI , KURISU NORIHITO , TSUCHIYAMA HITOSHI
IPC分类号： H01M4/134 , H01M4/36 , H01M4/505 , H01M4/62 , H01M10/05 , H01M4/02 , H01M10/40
摘要： PURPOSE:To provide a nonaqueous solvent secondary battery with high charge/ discharge performance, excellent high-rate discharge performance, and high economical efficiency by adding aromatic hydrocarbon to a positive active material. CONSTITUTION:In a nonaqueous solvent secondary battery having a negative electrode 6 made of a light metal 6, a positive electrode 4 made mainly of a spinel LiMn2O4 positive active material, and an electrolyte prepared by dissolving an electrolyte in a nonaqueous solvent, aromatic hydrocarbon containing a benzene ring is added to the positive active material. The positive active material is immersed in aromatic hydrocarbon with a benzene ring (example: toluene) under reduced pressure, and air-dried, then used.

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