公开(公告)号：US07824807B2

公开(公告)日：2010-11-02

申请号：US11296302

申请日：2005-12-08

申请人： Toyotaka Yuasa ,  Masahiro Kasai ,  Sai Ogawa

发明人： Toyotaka Yuasa ,  Masahiro Kasai ,  Sai Ogawa

IPC分类号： H01M4/62 ,  H01M4/58

CPC分类号： H01M4/505 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028 ,  Y02T10/7011

摘要： A positive electrode material for lithium secondary battery having high electron conductivity even at very low temperatures and a lithium secondary battery with the use of the positive electrode material are provided. The positive electrode material for lithium secondary battery has secondary particles formed of primary particles made of lithium complex oxides composited with ultrathin carbon fibers having lengths equal to or smaller than the diameters of the secondary particles of the positive electrode active material. The ultrathin carbon fibers have opposite ends from which an electrolytic solution moves in and out.

摘要翻译： 提供了即使在非常低的温度下也具有高电子传导性的锂二次电池用正极材料和使用正极材料的锂二次电池。 锂二次电池用正极材料具有由与由正极活性物质的二次粒子的直径相等或更小的长度的超薄碳纤维复合的锂复合氧化物构成的一次粒子形成的二次粒子。 超薄碳纤维具有相对的端部，电解液从该端部移入和移出。

公开(公告)号：US20060141361A1

公开(公告)日：2006-06-29

申请号：US11296302

申请日：2005-12-08

申请人： Toyotaka Yuasa ,  Masahiro Kasai ,  Sai Ogawa

发明人： Toyotaka Yuasa ,  Masahiro Kasai ,  Sai Ogawa

IPC分类号： H01M4/62 ,  H01M4/52 ,  H01M4/50 ,  H01M4/48

CPC分类号： H01M4/505 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/525 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  H01M2004/028 ,  Y02T10/7011

摘要： A positive electrode material for lithium secondary battery having high electron conductivity even at very low temperatures, a production method thereof, and a lithium secondary battery with the use of the positive electrode material are provided. The characteristic feature of this positive electrode material for lithium secondary battery is that a positive electrode active material having secondary particles formed of primary particles made of lithium complex oxides and ultrathin carbon fibers having lengths equal to or smaller than the diameters of the secondary particles of the positive electrode active material are composited.

摘要翻译： 提供了即使在非常低的温度下也具有高电子传导性的锂二次电池用正极材料及其制造方法以及使用正极材料的锂二次电池。 该锂二次电池用正极材料的特征在于，具有二次粒子的正极活性物质，其具有由锂复合氧化物构成的一次粒子和长度等于或小于二次粒子的直径的超薄碳纤维 合成正极活性物质。

公开(公告)号：US20070160906A1

公开(公告)日：2007-07-12

申请号：US11620197

申请日：2007-01-05

申请人： Tatsuya TOOYAMA ,  Toyotaka Yuasa ,  Sai Ogawa

发明人： Tatsuya TOOYAMA ,  Toyotaka Yuasa ,  Sai Ogawa

IPC分类号： H01M4/50 ,  H01M4/52

CPC分类号： H01M10/0525 ,  H01M4/362 ,  H01M4/505 ,  H01M4/525 ,  Y02T10/7011

摘要： The present invention provides a lithium secondary battery small in the volume variation caused by charge-discharge and excellent in cycle performance. The lithium secondary battery includes a cathode capable of storing and releasing lithium and an anode capable of storing and releasing lithium, the cathode including a lithium-nickel-manganese-cobalt compound oxide having a layered crystal structure and a lithium-manganese compound oxide having a layered crystal structure distributed in the lithium-nickel-manganese-cobalt compound oxide.

摘要翻译： 本发明提供一种由充放电引起的体积变化小，循环性能优异的锂二次电池。 锂二次电池包括能够储存和释放锂的阴极和能够储存和释放锂的阳极，所述阴极包括具有层状晶体结构的锂镍锰钴复合氧化物和具有层状晶体结构的锂锰复合氧化物，所述锂锰复合氧化物具有 分布在锂镍锰钴复合氧化物中的层状晶体结构。

公开(公告)号：US08974971B2

公开(公告)日：2015-03-10

申请号：US13561870

申请日：2012-07-30

申请人： Toyotaka Yuasa ,  Mitsuru Kobayashi ,  Sai Ogawa ,  Masanari Oda ,  Kan Kitagawa

发明人： Toyotaka Yuasa ,  Mitsuru Kobayashi ,  Sai Ogawa ,  Masanari Oda ,  Kan Kitagawa

IPC分类号： H01M4/64 ,  H01M4/40 ,  H01M4/505 ,  H01M2/24

CPC分类号： H01M4/64 ,  C01B25/45 ,  H01M2/1077 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/5825 ,  H01M4/625 ,  H01M4/661 ,  H01M4/663 ,  H01M4/667 ,  H01M10/0587 ,  H01M2004/021 ,  Y02E60/122

摘要： A positive electrode for a rechargeable lithium ion battery includes a mixture layer including a positive-electrode active material, a conducting agent, and a binder and a collector having the mixture layer formed on the surface thereof. The positive-electrode active material is a composite oxide having an olivine structure expressed by a formula LiaMxPO4 (where M represents a transition metal including at least one of Fe and Mn and a and x satisfy 0

摘要翻译： 用于可再充电锂离子电池的正电极包括包含正极活性材料，导电剂和粘合剂的混合物层和在其表面上形成有混合层的集电体。 正极活性物质是具有由式LiM x PO 4表示的橄榄石结构的复合氧化物（其中，M表示包含Fe和Mn中的至少一种的过渡金属，a和x满足0

公开(公告)号：US20130071722A1

公开(公告)日：2013-03-21

申请号：US13561870

申请日：2012-07-30

申请人： Toyotaka Yuasa ,  Mitsuru Kobayashi ,  Sai Ogawa ,  Masanari Oda ,  Kan Kitagawa

发明人： Toyotaka Yuasa ,  Mitsuru Kobayashi ,  Sai Ogawa ,  Masanari Oda ,  Kan Kitagawa

IPC分类号： H01M4/64

CPC分类号： H01M4/64 ,  C01B25/45 ,  H01M2/1077 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/5825 ,  H01M4/625 ,  H01M4/661 ,  H01M4/663 ,  H01M4/667 ,  H01M10/0587 ,  H01M2004/021 ,  Y02E60/122

摘要： A positive electrode for a rechargeable lithium ion battery includes a mixture layer including a positive-electrode active material, a conducting agent, and a binder and a collector having the mixture layer formed on the surface thereof. The positive-electrode active material is a composite oxide having an olivine structure expressed by a formula LiaMxPO4 (where M represents a transition metal including at least one of Fe and Mn and a and x satisfy 0

摘要翻译： 用于可再充电锂离子电池的正电极包括包含正极活性材料，导电剂和粘合剂的混合物层和在其表面上形成有混合层的集电体。 正极活性物质是具有由式LiM x PO 4表示的橄榄石结构的复合氧化物（其中，M表示包含Fe和Mn中的至少一种的过渡金属，a和x满足0

公开(公告)号：US20120183839A1

公开(公告)日：2012-07-19

申请号：US13257693

申请日：2010-07-28

申请人： Toyotaka Yuasa ,  Mituru Kobayasi ,  Sai Ogawa

发明人： Toyotaka Yuasa ,  Mituru Kobayasi ,  Sai Ogawa

IPC分类号： H01M4/525 ,  H01M4/131 ,  H01M2/20 ,  H01M4/04 ,  H01M4/505 ,  H01M10/05 ,  B82Y30/00

CPC分类号： H01M10/052 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/587 ,  H01M4/621 ,  H01M4/624 ,  H01M10/0525 ,  Y02T10/7011

摘要： The present invention provides a high-output lithium secondary battery. A cathode for lithium ion secondary battery of the present invention is used for a lithium secondary battery including a non-aqueous electrolyte solution. The cathode includes a complex oxide having an olivine structure represented by a chemical formula LiaMxPO4 (0

摘要翻译： 本发明提供一种高输出锂二次电池。 本发明的锂离子二次电池用阴极用于包含非水电解质溶液的锂二次电池。 阴极包括具有由化学式LiaMxPO4（0

公开(公告)号：US20100261061A1

公开(公告)日：2010-10-14

申请号：US11502434

申请日：2006-08-11

申请人： Toyotaka Yuasa ,  Sai Ogawa ,  Hirofumi Takahashi

发明人： Toyotaka Yuasa ,  Sai Ogawa ,  Hirofumi Takahashi

IPC分类号： H01M4/583 ,  H01M4/90

CPC分类号： H01M4/525 ,  C01G53/50 ,  C01P2006/40 ,  H01M4/0404 ,  H01M4/1391 ,  H01M4/362 ,  H01M4/505 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0566 ,  H01M2004/021 ,  H01M2010/4292

摘要： A positive electrode material for a lithium secondary battery according to the invention includes a positive electrode active material containing lithium oxide and a carbon composite obtained by dispersing carbon fiber and a clamped shape carbon material, and the positive electrode active material is combined with the carbon composite. In the positive electrode material for a lithium secondary battery constructed as described above, a conductive network between primary particles is formed by the carbon composite while the positive electrode active material (primary particles) are condensed to form secondary particles.

摘要翻译： 根据本发明的锂二次电池用正极材料包括含有氧化锂的正极活性物质和通过分散碳纤维和夹紧形状的碳材料获得的碳复合物，并将正极活性物质与碳复合物 。 在如上所述构造的锂二次电池用正极材料中，通过碳复合体形成一次粒子之间的导电性网络，同时将正极活性物质（一次粒子）冷凝形成二次粒子。

公开(公告)号：US20060046142A1

公开(公告)日：2006-03-02

申请号：US11211698

申请日：2005-08-26

申请人： Masahiro Kasai ,  Toyotaka Yuasa

发明人： Masahiro Kasai ,  Toyotaka Yuasa

IPC分类号： H01M4/52 ,  H01M4/50 ,  C01G45/12 ,  C01G53/04

CPC分类号： H01M4/525 ,  C01G45/1228 ,  C01G51/44 ,  C01G51/50 ,  C01G53/44 ,  C01G53/50 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2006/11 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/021

摘要： A lithium secondary battery that is highly safe and has long life. The battery, which is a nonaqueous lithium secondary battery, utilizes a cathode active material comprising a complex oxide material having a layered structure containing at least Li and Ni and being represented by the chemical formula LixNia(MnyM1-y)b(COzM′1-z)cO2(0

摘要翻译： 锂二次电池安全可靠，使用寿命长。 作为非水系锂二次电池的电池利用包含具有至少包含Li和Ni的层状结构的复合氧化物材料的正极活性物质，并由化学式Li x Ni （M 1，Y 2，Y 1，Y 2，Y 3） （0

公开(公告)号：US20050142442A1

公开(公告)日：2005-06-30

申请号：US11020034

申请日：2004-12-23

申请人： Toyotaka Yuasa ,  Masahiro Kasai

发明人： Toyotaka Yuasa ,  Masahiro Kasai

IPC分类号： H01M10/05 ,  C01G1/02 ,  C01G53/00 ,  H01M2/02 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/52 ,  H01M4/48 ,  H01M4/50

CPC分类号： H01M10/0525 ,  H01M2/023 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0587 ,  H01M2004/028 ,  Y02T10/7011

摘要： A positive electrode material for a nonaqueous lithium secondary battery and a lithium secondary battery that has superior cycle life and safety and reduced internal resistance of the battery at low temperature is provided. The positive electrode material for a nonaqueous lithium secondary battery comprise a layered structured complex oxide expressed by a composition formula LiaMnxNiyCozMαO2, where 0

摘要翻译： 提供一种用于非水锂二次电池的正极材料和锂二次电池，其具有优异的循环寿命和安全性以及在低温下电池的内部电阻降低。 用于非水锂二次电池的正极材料包括由组成式Li表示的层状结构复合氧化物，其中Mn， 其中0

公开(公告)号：US08097363B2

公开(公告)日：2012-01-17

申请号：US13023087

申请日：2011-02-08

申请人： Toyotaka Yuasa ,  Masahiro Kasai ,  Genei Nakajima

发明人： Toyotaka Yuasa ,  Masahiro Kasai ,  Genei Nakajima

IPC分类号： H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  C01G53/04 ,  C01G51/04 ,  C01G45/02

CPC分类号： H01M4/0435 ,  H01M4/043 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M2004/021

摘要： The object of the invention is to provide positive electrode material in which a discharge rate characteristic and battery capacity are hardly deteriorated in the environment of low temperature of −30° C., its manufacturing method and a lithium secondary battery using the positive electrode material. The invention is characterized by the positive electrode material in which plural primary particles are flocculated and a secondary particle is formed, and the touch length of the primary particles is equivalent to 10 to 70% of the length of the whole periphery on the section of the touched primary particles.

摘要翻译： 本发明的目的是提供在-30℃的低温环境下的放电特性和电池容量几乎不劣化的正极材料，其制造方法和使用该正极材料的锂二次电池。 本发明的特征在于其中多个一次粒子絮凝并形成二次粒子的正极材料，一次粒子的接触长度相当于全部周边的长度的10〜70％ 触摸初级粒子。