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公开(公告)号：JPH10302779A
公开(公告)日：1998-11-13
申请号：JP10978297
申请日：1997-04-25
Applicant: SONY CORP
Inventor： ISONAGA TAISUKE , YAMAMOTO YOSHIKATSU
Abstract: PROBLEM TO BE SOLVED: To reduce the deterioration of a battery characteristic under a high temperature environment by treating with a gas a lithium composite oxide of a specific composition in an atmosphere of specific CO2 concentration and a dew point lower than a specific temperature, in a nonaqueous electrolytic secondary battery using the lithium composite oxide as a positive electrode active material. SOLUTION: The lithium composite oxide expressed by the formula, Lix Niy M(1-y) O2 (M is at least one of transition metals B, Al, Ga, and In; 0.05 =0.1 vol.% and a dew point =0.1 vol.% and a dew point
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公开(公告)号：JPH07335262A
公开(公告)日：1995-12-22
申请号：JP14568094
申请日：1994-06-03
Applicant: SONY CORP
Inventor： NAGAMINE MASAYUKI , KATO NAOYUKI , YAMAMOTO YOSHIKATSU , IMOTO HIROSHI , KOMARU TOKUO , NAKAJIMA NAOYUKI , SUZUKI MASARU
Abstract: PURPOSE:To maintain high capacity and high preservation by using a carbon material satisfying a condition that rhoP/rhoHe is smaller than a specific value, when assumed rhoP for true specific gravity measured by a liquid immersion substitution method with n-Bu0H serving as an immersion liquid in a negative electrode and f He for true specific gravity measured by a gas substitution method using Li. CONSTITUTION:In this nonaqueous electrolyte secondary battery, a graphitizationdifficult carbon material is used in a negative electrode, and an Li transition metal compound oxide, represented by a formula LixNiyCo1-yO2 (0.05
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公开(公告)号：JPH07320721A
公开(公告)日：1995-12-08
申请号：JP11278694
申请日：1994-05-26
Applicant: SONY CORP
Inventor： KATO NAOYUKI , YAMAMOTO YOSHIKATSU , UENO HIROBUMI , NIRASAWA TAKAO
IPC: H01M10/05 , C01B31/02 , H01M4/525 , H01M10/0525 , H01M10/0566 , H01M4/02 , H01M4/58 , H01M10/40
Abstract: PURPOSE:To provide a nonaqueous electrolyte secondary battery with high energy density and long cycle life. CONSTITUTION:A nonaqueous electrolyte secondary battery contains a positive electrode 2 using a lithium-containing composite oxide as a positive active material, a negative electrode 1 using a carbonaceous material capable of doping/undoping lithium as a negative active material, and a nonaqueous electrolyte. Lithium-nickel-cobalt composite oxide represented by Li1-xNiyCo1-yO2 (0.50
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公开(公告)号：JPH05290849A
公开(公告)日：1993-11-05
申请号：JP11228692
申请日：1992-04-03
Applicant: SONY CORP
Inventor： ENDO TAKUYA , NISHI MIO , OZAWA KAZUNORI , MIURA YASUO , SEKAI KOUJI , KATO NAOYUKI , YAMAMOTO YOSHIKATSU , SATO SUSUMU
Abstract: PURPOSE:To set a grain size of positive electrode active material large, and reduce a self-discharge rate by granulating material powder comprising inorganic compound for the positive electrode active material preliminarily, and then baking obtained grains. CONSTITUTION:In a nonaqueous secondary battery using inorganic compound for positive electrode active material, material powders comprising inorganic compound are mixed, granulated, and baked, and obtained matters are used for the positive electrode active material. An average grain size of the positive active material can thus be set large, thereby a nonaqueous electrolyte secondary battery with a reduced self-discharge rate can be provided.
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公开(公告)号：JPH04329269A
公开(公告)日：1992-11-18
申请号：JP13068591
申请日：1991-05-02
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIKATSU , MASUKO EIKO
Abstract: PURPOSE:To cut the current securely at the time of over charge, and prevent the heat generation with quick temperature rise and the relatively quick damage by including a specified quantity of lithium oxalate in a positive electrode mainly composed of lithium compound oxide. CONSTITUTION:A positive electrodes 2, which is mainly composed of LixMO2, and a negative electrode 1, which can be doped and undoped with lithium, are wound through a separators 3, and they are housed in a battery can 5 under the condition that insulating thin plates 4 are placed in the upper and the lower of this winding body, and nonaqueous electrolyte is filled to form a nonaqueous electrolyte secondary battery. M means transition metal, and 0.05
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Patent Agency Ranking
公开(公告)号：JPH04329268A
公开(公告)日：1992-11-18
申请号：JP13068291
申请日：1991-05-02
Applicant: SONY CORP
Inventor： YAMAMOTO YOSHIKATSU , FUJITA SHIGERU
IPC: C01B31/02 , H01M4/13 , H01M4/525 , H01M10/05 , H01M10/0566
Abstract: PURPOSE:To prevent the heat generation with quick temperature rise and the relatively quick damage even if over-charging is performed with high current by forming a part, which is coated with lithium carbonate, in the surface of a positive electrode mainly composed of lithium compound oxide. CONSTITUTION:A positive electrode 2, which are mainly composed of LixMO2, and a negative electrode 2, which can be doped and undoped with lithium, are wound through a eparators 3, and the positive electrode 1 and the negative electrode 2 are housed in a battery can 5 under the condition that insulating plates 4 are placed in the upper and the lower of the winding body to form a nonaqueous electrolyte secondary battery. M means transition metal, and at least one kind of Co and Ni is desirable, and 0.05
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公开(公告)号：JPH04249074A
公开(公告)日：1992-09-04
申请号：JP3550791
申请日：1991-02-05
Applicant: SONY CORP
Inventor： KATO NAOYUKI , YAMAMOTO YOSHIKATSU , NAGAURA TORU
IPC: H01M10/05 , H01M4/525 , H01M10/052 , H01M10/0566
Abstract: PURPOSE:To prevent drop of the capacity and achieve excellent charging/ discharging cycle characteristics by synthesizing LiMO2 as pos. electrode active substance from Li compound and a compound incl. transfer metal in an atmosphere which has a specific oxygen concentration value in %. CONSTITUTION:LixMO2 as active substance of pos. electrode 2, where M is one or more sorts of transfer metal, and 0.05
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公开(公告)号：JPH0237665A
公开(公告)日：1990-02-07
申请号：JP18756388
申请日：1988-07-27
Applicant: SONY CORP
Inventor： NAGAURA TORU , HASHIMOTO TOSHIO , YAMAMOTO YOSHIKATSU
IPC: H01M10/05 , H01M4/525 , H01M10/052
Abstract: PURPOSE:To obtain an organic electrolyte secondary battery of large capacity in addition to little deterioration in capacity associated with charging and discharging duty, by using LixMnOy as material of the positive electrode of the organic electrolyte secondary battery, and specifying an analysis value of valency number of Mn of LixMnOy and a ratio x of Li. CONSTITUTION:An organic electrolyte secondary battery comprises a negative electrode material to contain lithium, a positive electrode material described by a formula LixMnOy, and organic electrolyte liquid, and maintains such a relation that an analysis value m of a valency number of Mn in a formula LixMnOy and an atomic ratio x of Li/Mn satisfy 0.5
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公开(公告)号：JP2009187702A
公开(公告)日：2009-08-20
申请号：JP2008023940
申请日：2008-02-04
Inventor： OGAWA KENICHI , KAJITA ATSUSHI , TEJIMA YUKAKO , NISHIMOTO ATSUSHI , HAMAZAKI SHINICHI , YAMAMOTO YOSHIKATSU , IMOTO HIROSHI
IPC: H01M2/16 , H01M10/058
CPC classification number: H01M2/1653 , H01M2/1686 , H01M10/0525
Abstract: PROBLEM TO BE SOLVED: To make high safety and high battery characteristics compatible in a nonaqueous electrolyte battery used by a charging voltage over 4.20 V.
SOLUTION: A separator used for the nonaqueous electrolyte secondary battery in which a positive electrode and a negative electrode are opposedly arranged via the separator, and in which an open circuit voltage in a full charged state per a pair of the positive electrode and the negative electrode is in a range of 4.25 V to 6.00 V, has a constitution that the separator has a base material layer made of a polyolefin based resin material, and a surface layer which is formed at least at a positive electrode side face of the base material layer and made of at least one kind of a group consisting of polyvinylidene fluoride, polytetrafluoro ethylene and polypropylene, and that by forming a coating layer in which at least one kind of a group consisting of all aromatic polyamide resin, polyimide and ceramics is contained in, for example, at least one of surfaces of the separator, at least one kind of the group consisting of the all aromatic polyamide resin, polyimide and ceramics exists on the outermost surface of the separator.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：使得在超过4.20V的充电电压使用的非水电解质电池中具有高安全性和高电池特性。解决方案：用于非水电解质二次电池的隔膜，其中正极 并且负极通过隔板相对布置，并且其中每一对正电极和负电极处于满电荷状态的开路电压处于4.25V至6.00V的范围内，具有如下结构： 隔板具有由聚烯烃系树脂材料构成的基材层和至少形成在基材层的正极侧面的表层，并且由至少一种由聚偏二氟乙烯，聚四氟乙烯 乙烯和聚丙烯，并且通过形成其中包含至少一种由所有芳族聚酰胺树脂，聚酰亚胺和陶瓷组成的组的涂层，用于 例如，分离器的表面中的至少一个表面上存在由全部芳族聚酰胺树脂，聚酰亚胺和陶瓷组成的组中的至少一种。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2005339970A
公开(公告)日：2005-12-08
申请号：JP2004156688
申请日：2004-05-26
Inventor： SATO TAKASHI , YAMAMOTO YOSHIKATSU , HOSOYA YOSUKE
IPC: H01M4/131 , H01M4/36 , H01M4/505 , H01M4/525 , H01M6/00 , H01M10/05 , H01M4/02 , H01M4/58 , H01M10/40
CPC classification number: H01M4/131 , H01M4/133 , H01M4/364 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0587 , H01M2004/021 , H01M2004/028
Abstract: PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery capable of improving a cycle property and a low temperature load property.
SOLUTION: The nonaqueous electrolyte secondary battery has a cathode 2 and an anode 3 electrochemically doping and dedoping lithium, and an electrolyte interposed between the cathode 2 and the anode 3. The cathode 2 contains a cathode activator made by mixing a first activator expressed by general formula: Li
t CoM
s O
2 and a second cathode activator expressed by general formula: Li
x Ni
(1-y-z) Co
y Mn
z A
a O
2 . In the formula, M denotes a metal, 0≤s≤0.03, 0.05≤t≤1.15, and A denotes aluminum, 0.05≤x≤1.15, 0.15≤y+z≤0.70, 0.05≤z≤0.40, 0≤a≤0.10.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 解决的问题：提供能够提高循环性能和低温负载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具有阴极2和阳极3，电化学掺杂和去掺杂锂，以及介于阴极2和阳极3之间的电解质。阴极2包含通过混合第一活化剂 由通式表示：通式为：通式为：Li
×SB 和通式 >的Ni （1-YZ）钴 ý的Mn ž A 一 0 2 。 在该式中，M表示金属，0≤s≤0.03,0.05≤t≤1.15，A表示铝，0.05≤x≤1.15,0.15≤y+z≤0.70,0.05≤z≤0.40,0≤a≤ 0.10。 版权所有（C）2006，JPO＆NCIPI
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