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公开(公告)号:US5620812A
公开(公告)日:1997-04-15
申请号:US511068
申请日:1995-08-03
申请人: Kensuke Tahara , Fumiharu Iwasaki , Seiji Yahagi , Akifumi Sakata , Tsugio Sakai , Hideki Ishikawa , Shinichi Takasugi
发明人: Kensuke Tahara , Fumiharu Iwasaki , Seiji Yahagi , Akifumi Sakata , Tsugio Sakai , Hideki Ishikawa , Shinichi Takasugi
IPC分类号: C01G51/00 , C01G53/00 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/05 , H01M10/052 , H01M10/0566 , H01M4/52
CPC分类号: H01M10/052 , H01M4/485 , H01M4/525
摘要: A non-aqueous electrolyte secondary battery comprises a negative electrode having an active material comprised of lithium or a material capable of absorbing and releasing lithium, a lithium ion conductive non-aqueous electrolyte, and a positive electrode. The positive electrode active material is comprised of a composite represented by composition formula Li.sub.a R.sub.b L.sub.c M.sub.d O.sub.2 where R is one or more metalloid elements selected from boron B and silicon Si, L is at least one element selected from metals and metalloids of Groups IIIA and IVA of the periodic table, alkaline earth metals, and metals selected from the group consisting of Ti, Mn, Cu and Zn, M represents transition metal elements comprising at least Ni and Co, R, L and M are different, and a, b, c and d satisfy 0
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2.
公开(公告)号:US5506075A
公开(公告)日:1996-04-09
申请号:US205948
申请日:1994-03-03
申请人: Fumiharu Iwasaki , Kensuke Tahara , Hideki Ishikawa , Seiji Yahagi , Akifumi Sakata , Tsugio Sakai
发明人: Fumiharu Iwasaki , Kensuke Tahara , Hideki Ishikawa , Seiji Yahagi , Akifumi Sakata , Tsugio Sakai
IPC分类号: H01M10/05 , H01M4/485 , H01M4/505 , H01M4/525 , H01M10/0568 , H01M10/0569 , H01M4/48
CPC分类号: H01M4/485 , H01M10/0525 , H01M10/0569 , H01M10/058 , H01M4/131 , H01M4/505 , H01M4/525 , Y02P70/54
摘要: A non-aqueous electrolyte secondary battery has a negative electrode, a positive electrode and a non-aqueous electrolyte with lithium ion conductivity. A composite oxide containing lithium represented by composition formula Li.sub.x Si.sub.1-y M.sub.y O.sub.z (where M is one or more kinds of elements selected from metals other than alkaline metals, and metalloids other than silicon, and x, y and z satisfy O.ltoreq.x, 0
摘要翻译: 非水电解质二次电池具有负极,正极和具有锂离子传导性的非水电解质。 含有由组成式LixSi1-yMyOz表示的锂的复合氧化物(其中M是选自除碱金属以外的金属中的一种或多种元素,除硅以外的准金属,x,y和z满足O X = 0
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公开(公告)号:USRE35818E
公开(公告)日:1998-06-02
申请号:US539825
申请日:1995-10-06
申请人: Kensuke Tahara , Hideki Ishikawa , Tsugio Sakai , Akifumi Sakata , Fumiharu Iwasaki , Seiji Yahagi
发明人: Kensuke Tahara , Hideki Ishikawa , Tsugio Sakai , Akifumi Sakata , Fumiharu Iwasaki , Seiji Yahagi
CPC分类号: H01M4/505 , H01M4/485 , H01M10/052 , H01M6/16 , H01M6/164
摘要: A non-aqueous electrolyte secondary battery has a negative electrode, a positive electrode and a non-aqueous electrolyte with lithium ion conductivity. A composite oxide produced from a metal or a metalloid and lithium represented by composition formula Li.sub.x MO (where M represents metals or metalloids other than alkali metals, and x satisifies 0.ltoreq.x) is used as an active material of one or both of the negative electrode and the positive electrode. The battery exhibits a large charging/discharging capacity and a high energy density together with smaller polarization (internal resistance) on charging and discharging which facilitates a large current charging and discharging with a long cycle life and reduces deterioration due to excess charging and excess discharging.
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4.
公开(公告)号:US5401599A
公开(公告)日:1995-03-28
申请号:US127960
申请日:1993-09-28
申请人: Kensuke Tahara , Hideki Ishikawa , Tsugio Sakai , Akifumi Sakata , Fumiharu Iwasaki , Seiji Yahagi
发明人: Kensuke Tahara , Hideki Ishikawa , Tsugio Sakai , Akifumi Sakata , Fumiharu Iwasaki , Seiji Yahagi
IPC分类号: H01M4/50 , H01M4/505 , H01M6/16 , H01M10/052 , H01M10/0569 , H01M10/36 , H01M4/02
CPC分类号: H01M4/505 , H01M10/0569 , H01M10/052 , H01M6/16 , H01M6/164
摘要: A non-aqueous electrolyte secondary battery has a negative electrode, a positive electrode and a non-aqueous electrolyte with lithium ion conductivity. A composite oxide produced from a metal or a metalloid and lithium represented by composition formula Li.sub.x MO (where M represents metals or metalloids other than alkali metals, and x satisifies 0.ltoreq.x) is used as an active material of one or both of the negative electrode and the positive electrode. The battery exhibits a large charging/discharging capacity and a high energy density together with smaller polarization (internal resistance) on charging and discharging which facilitates a large current charging and discharging with a long cycle life and reduces deterioration due to excess charging and excess discharging.
摘要翻译: 非水电解质二次电池具有负极,正极和具有锂离子传导性的非水电解质。 由组成式LixMO(其中M表示除碱金属以外的金属或准金属,x满足0
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5.
公开(公告)号:US5395711A
公开(公告)日:1995-03-07
申请号:US97714
申请日:1993-07-27
申请人: Kensuke Tahara , Hideki Ishikawa , Fumiharu Iwasaki , Seiji Yahagi , Akifumi Sakata , Tsugio Sakai
发明人: Kensuke Tahara , Hideki Ishikawa , Fumiharu Iwasaki , Seiji Yahagi , Akifumi Sakata , Tsugio Sakai
IPC分类号: C01B31/04 , H01M4/48 , H01M4/58 , H01M6/16 , H01M10/05 , H01M10/0568 , H01M10/0569 , H01M6/14
CPC分类号: H01M4/485 , H01M10/05 , H01M10/0569 , H01M4/505 , H01M10/052 , H01M6/16 , H01M6/164
摘要: A non-aqueous electrolyte secondary battery has a negative electrode, a positive electrode and a lithium ion-conductive non-aqueous electrolyte. A silicon oxide or a silicate containing lithium is used as the negative electrode active material. The potential of the negative electrode active material is low, the charge and discharge capacity in a base potential region of 0-1 V with respect to metallic lithium is large, and the polarization (internal resistance) during charge and discharge is small. A secondary battery having a high voltage and a high energy density is obtained in which large current charge and discharge characteristics are facilitated, the deterioration due to excessive charge and excessive discharge is reduced, the cycle life is long and the reliability is high.
摘要翻译: 非水电解质二次电池具有负极,正极和锂离子传导性非水电解质。 使用氧化硅或含硅酸锂作为负极活性物质。 负极活性物质的电位低,相对于金属锂的0-1V的基极电位区域的充放电容量大,充放电时的极化(内阻)小。 获得具有高电压和高能量密度的二次电池,其中易于大电流充放电特性,由于过度充电和过度放电而导致的劣化降低,循环寿命长并且可靠性高。
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