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公开(公告)号：JPH07320786A
公开(公告)日：1995-12-08
申请号：JP12265994
申请日：1994-06-03
Applicant: SONY CORP
Inventor： KOGA YASUNOBU , ANZAI CHIAKI , TAKAHASHI HIDEYA , WATANABE AYAKI
Abstract: PURPOSE:To facilitate the insertion of an electrode to a case to improve productivity, and also improve reliability and cycle characteristic. CONSTITUTION:This organic electrolytic secondary battery is a flat organic electrolytic secondary battery consisting of a positive electrode 7 having LixMO2 (M is one kind or more of transition metals) as a positive electrode active material and a negative electrode 5 having a carbon material capable of doping/ dedoping lithium. The electrode bodies 5, 7 are nipped in both sides by pressing plates 8.
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公开(公告)号：JP2007294179A
公开(公告)日：2007-11-08
申请号：JP2006119052
申请日：2006-04-24
Inventor： NIRASAWA TAKAO , KOGA YASUNOBU
IPC: H01M2/02 , C22C38/00 , C22C38/44 , H01M10/05 , H01M10/052 , H01M10/0568 , H01M10/0569
CPC classification number: Y02E60/122
Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery with improvment of a long-term storage property attained. SOLUTION: The nonaqueous electrolyte secondary battery contains at least iron (Fe), nickel (Ni), chromium (Cr), molybdenum (Mo) in place of an aluminum-group material used from before as structuring members of a container 3 (a cathode can) of a battery 1, corrosion of the can be suppressed, especially, under high temperature and humidity circumstances by using a stainless steel material (equivalent to SUS328J4L) having a range of a ratio of molybdenum (Mo) to the structuring members from 3.00 wt.% to 3.50 wt.%. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供一种改进长期保存性能的非水电解质二次电池。 解决方案：非水电解质二次电池至少含有铁（Fe），镍（Ni），铬（Cr），钼（Mo）代替以前用作容器3的结构元件的铝基材料 （阴极罐），通过使用具有钼（Mo）与结构化（Mo）的比例的范围的不锈钢材料（相当于SUS328J4L），特别是在高温和高湿度环境下，可以抑制腐蚀 成员从3.00重量％至3.50重量％。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JPH0992257A
公开(公告)日：1997-04-04
申请号：JP24992795
申请日：1995-09-27
Applicant: SONY CORP
Inventor： KOGA YASUNOBU , SHIGETOMI JUNICHI
Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery with high reliability and excellent high rate characteristics by optimizing a separator. SOLUTION: A negative electrode using a carbon material capable of doping/ undoping lithium ions or lithium metal as an active material and positive electrode 2 using a lithium compound oxide such as a lithium cobalt oxide, a lithium nickel oxide or the like as an active material are stacked through a separator 8. In a nonaqueous electrolyte secondary battery, the thickness (a) of the separator 8 is specified to 30μm
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公开(公告)号：JPH0896839A
公开(公告)日：1996-04-12
申请号：JP22828394
申请日：1994-09-22
Applicant: SONY CORP
Inventor： KOGA YASUNOBU , ANZAI CHIAKI , TAKAHASHI HIDEYA , WATANABE AYAKI
IPC: H01M2/26 , H01M10/05 , H01M10/0585 , H01M10/38 , H01M10/40
Abstract: PURPOSE: To prevent the contact between a positive electrode lead and the end face of a negative electrode and prevent short circuit between electrodes by protruding separators on the positive electrode lead side from the negative electrodes by the thickness of the negative electrodes or above. CONSTITUTION: A rectangular positive electrode 2 having lithium and a transition metal composite oxide as a positive electrode active material and a rectangular negative electrode 3 having a carbon material capable of doping or dedoping lithium ions as a negative electrode active material are laminated in turn via a separator 8 to obtain a laminated body, and the laminated bodies are stored in a flat angular battery container 10 to obtain a lithium ion secondary battery. Separators 8 on the positive electrode lead 2a side of the laminated bodies are protruded from the end faces of the negative electrodes 3 by the thickness of the negative electrodes 3 or above.
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公开(公告)号：JPH09120813A
公开(公告)日：1997-05-06
申请号：JP27922895
申请日：1995-10-26
Applicant: SONY CORP
Inventor： KOGA YASUNOBU , MURAYAMA SHIGEKI , INOUE YOSHITO
IPC: H01M10/05 , H01M4/131 , H01M4/1391 , H01M10/052 , H01M10/0566 , H01M4/02 , H01M4/58 , H01M10/40
Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery in which energy density is improved further, and in which conductivity of electrode bodies is improved to provide excellent load characteristics. SOLUTION: In a battery, a negative electrode body 2 having negative electrode active material capable of doping and dedoping lithium or lithium ions, and a positive electrode body 1 having positive electrode active material comprising lithium composite oxide are disposed through a separator 3. For this positive electrode body 1, this positive electrode active material is mixed with aluminum powder or aluminum paste, and only an aluminum component is sintered.
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Patent Agency Ranking
公开(公告)号：JPH08102313A
公开(公告)日：1996-04-16
申请号：JP23771594
申请日：1994-09-30
Applicant: SONY CORP
Inventor： KOGA YASUNOBU , TAKAHASHI HIDEYA , ENDO MASAYUKI , WATANABE AYAKI
Abstract: PURPOSE: To reduce material cost and enhance the reliability of a positive terminal by using a material having austenite and ferrite structure at normal temperature in the positive terminal and fixing a positive electrode to a battery cover or a battery can by caulking. CONSTITUTION: A positive terminal 23 is made of two phase stainless steel comprising austenite and ferrite structure at normal temperature, and enveloped together with a negative electrode 3 and a separator 8. The negative electrode 3, the separator 8, a positive electrode 2, and the separator 8, and the negative electrode 3 are mutually stacked in order to form an electrode stacked body. The positive electrode 2 is fixed to a battery cover 21 or a battery can by caulking. Then they are put in a flat type battery container 10 and an electrolyte prepared by dissolving a lithium salt serving as an electrolyte in an organic solvent is poured in the container 10. Since two phase stainless steel is used and the positive electrode is fixed by caulking, cost is reduced, leakage resistance is ensured to the shock such as falling down, and a battery with high reliability can be obtained.
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公开(公告)号：JPH05234619A
公开(公告)日：1993-09-10
申请号：JP7279992
申请日：1992-02-24
Applicant: SONY CORP
Inventor： ANDO KENICHIRO , YAMAHIRA TAKAYUKI , ANZAI MASANORI , KOGA YASUNOBU
IPC: H01M10/05 , H01M4/485 , H01M10/0525 , H01M10/0569 , H01M10/40
Abstract: PURPOSE:To improve cycle life characteristics under heavy loading conditions, of nonaqueous electrolyte secondary battery in which special lithium compound is used as an active material for positive electrode and electrode materials capable of doping and undoping lithium is used for negative electrode. CONSTITUTION:A nonaqueous electrolyte secondary battery is composed of a positive electrode which contains LixMO2 (M represents more than one kind of transition metal and 0.05
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公开(公告)号：JPH09147914A
公开(公告)日：1997-06-06
申请号：JP30583595
申请日：1995-11-24
Applicant: SONY CORP
Inventor： KOGA YASUNOBU , MURAYAMA SHIGEKI , INOUE YOSHITO , ITOU FUMINARI
IPC: H01M10/05 , H01M10/052 , H01M10/0587 , H01M10/40
Abstract: PROBLEM TO BE SOLVED: To materilize damages caused by the internal short-circuit of the lithium ion secondary cell high in capacity, and an effect to the circumference without increasing its volume. SOLUTION: In the lithium ion secondary cell, for example, a positive electrode 20 is so constituted as to be divided into four pieces so as to be sealed by a separator 12. Next, 22 pieces of the positive electrodes and 23 pieces of the negative electrodes are alternately laminated, the outer circumferences of them are wound by an adhesive tape so as to be fixed, and each lead portion of them is thereby bent up. And each lead portion is fusion bonded to current collectors 14 each of which is formed out of a prism by ultra sonic welding. Each laminated electrode body 21, to which the current collectors is fusion bonded, is inserted so as to be housed in a cell case and the like. By this constitution, the lithium ion secondary cell is thereby provided, which is small in size, light in weight, and high in safety.
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公开(公告)号：JPH0896802A
公开(公告)日：1996-04-12
申请号：JP23180994
申请日：1994-09-27
Applicant: SONY CORP
Inventor： KOGA YASUNOBU , TAKAHASHI HIDEYA , ENDO MASAYUKI , WATANABE AYAKI
Abstract: PURPOSE: To form lead for a rectangular electrode of a secondary battery in high productivity by partially applying an active material to a belt-shaped current collector and cutting the current collector so that a non-coated part becomes the lead to obtain an electrode. CONSTITUTION: An active material is applied to a belt-shaped current collector 30 so as to leave a non-coated part 30a and to form a coated part 31. The non-coated part 30a is preferably formed on the belt-shaped current collector 30 intermittently in the length direction or in a belt shape in the length direction. The active material-coated current collector 30 is cut so that the non-coated part 30a becomes current collecting lead 32. An electrode comprising the active material coated part 31 and having the lead 32 is obtained.
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公开(公告)号：JPH07302616A
公开(公告)日：1995-11-14
申请号：JP11456894
申请日：1994-04-28
Applicant: SONY CORP
Inventor： KOGA YASUNOBU , ANZAI CHIAKI , TAKAHASHI HIDEYA , WATANABE AYAKI
IPC: H01M2/18 , H01M10/05 , H01M10/0525 , H01M10/0585 , H01M10/40 , H01M10/38
Abstract: PURPOSE:To provide a square type lithium ion secondary battery having no stacking slippage of a square strip-shaped positive electrode and a square strip- shaped negative electrode. CONSTITUTION:A square type lithium ion secondary battery has a stacked electrode body 1 obtained by stacking a square strip-shaped positive electrode 5 using a composite oxide of lithium and at least one of transition metals as a positive active material and a square strip-shaped negative electrode 3 using a carbon material capable of doping/undoping a lithium ion as a negative active material through a separator 4. As the separator 4, a bag-shaped separator is used and the square strip-shaped positive electrode 5 is positioned within the separator 4.
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