公开(公告)号：US5571638A

公开(公告)日：1996-11-05

申请号：US313832

申请日：1994-09-28

申请人： Tomoari Satoh ,  Tatsuo Tateno ,  Yasuhito Furukawa ,  Toshihisa Deguchi

发明人： Tomoari Satoh ,  Tatsuo Tateno ,  Yasuhito Furukawa ,  Toshihisa Deguchi

IPC分类号： H01M4/02 ,  H01M4/58 ,  H01M4/62 ,  H01M2/16

CPC分类号： H01M4/587 ,  H01M4/13 ,  H01M4/621 ,  Y10T29/49108 ,  Y10T29/49115

摘要： Provided is a lithium secondary battery excellent in initial charge/discharge characteristics and high in capacity comprising lithium-rechargeable cathode and anode and a nonaqueous electrolyte, wherein at least one of the cathode and the anode contains one of the following (A), (B) and (C):(A) a composite material comprising a carbon powder and a binder, which is treated with a silane coupling agent,(B) a composite material comprising a binder and a mixed carbon powder containing 70-99% by weight of a graphite powder and 30-1% by weight of a pseudo-graphitic carbon black, and(C) a composite material comprising a composite oxide powder of lithium and a transition metal, a conductive powder and a binder, which is treated with a silane coupling agent.

摘要翻译： 本发明提供一种锂二次电池，其特征在于充电/放电特性良好，容量大，锂可充电阴极和阳极以及非水电解质，其中阴极和阳极中的至少一个包含以下（A），（B ）和（C）：（A）包含用硅烷偶联剂处理的碳粉和粘合剂的复合材料，（B）包含粘合剂和含有70-99重量％的混合碳粉末的复合材料 的石墨粉末和30-1重量％的仿石炭黑，以及（C）包含锂和过渡金属的复合氧化物粉末，导电粉末和粘合剂的复合材料，其用 硅烷偶联剂。

公开(公告)号：US5824284A

公开(公告)日：1998-10-20

申请号：US827497

申请日：1997-03-28

申请人： Tomoari Satoh ,  Kenji Nakane ,  Yasunori Nishida

发明人： Tomoari Satoh ,  Kenji Nakane ,  Yasunori Nishida

IPC分类号： C01G53/00 ,  H01M4/52 ,  H01M4/525 ,  H01M10/052 ,  H01M10/36 ,  H01M4/32

CPC分类号： H01M10/052 ,  C01G53/42 ,  H01M4/525 ,  C01P2002/30 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  Y02P70/54

摘要： The invention provides a cathode material for lithium secondary battery containing lithiated nickel dioxide having excellent charge/discharge characteristics and a process for producing the lithiated nickel dioxide, and a lithium secondary battery. That is, the cathode material for lithium secondary battery contains lithiated nickel dioxide having .alpha.-NaFeO.sub.2 structure and shows a coulomb efficiency of 80% or higher at the first charging and discharging, and the process for producing lithiated nickel dioxide comprises dispersing a nickel compound in a lithium nitrate solution, then evaporating the solvent to obtain a mixture of lithium nitrate and the nickel compound and firing the mixture in an atmosphere containing oxygen.

摘要翻译： 本发明提供了一种锂二次电池用阴极材料，其具有充电/放电特性优异的锂化二氧化镍和锂二次电池的制造方法以及锂二次电池。 也就是说，锂二次电池用阴极材料含有具有α-NaFeO 2结构的锂化二氧化镍，并且在第一次充放电时显示出库仑效率为80％以上，并且锂化二氧化镍的制造方法包括将镍化合物 硝酸锂溶液，然后蒸发溶剂，得到硝酸锂和镍化合物的混合物，并在含氧气氛中焙烧该混合物。

公开(公告)号：US6103420A

公开(公告)日：2000-08-15

申请号：US841776

申请日：1997-05-05

申请人： Kenji Nakane ,  Yasunori Nishida ,  Kenichiro Kami ,  Tomoari Satoh

发明人： Kenji Nakane ,  Yasunori Nishida ,  Kenichiro Kami ,  Tomoari Satoh

IPC分类号： C01G53/00 ,  H01M4/1391 ,  H01M4/48 ,  H01M4/485 ,  H01M4/52 ,  H01M4/525 ,  H01M4/54 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/36

CPC分类号： H01M10/052 ,  C01G53/42 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/525 ,  H01M4/54 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2004/20 ,  C01P2006/10 ,  C01P2006/40 ,  H01M10/0525 ,  H01M4/0404 ,  Y02P70/54

摘要： The invention provides a cathode for a lithium secondary battery including lithiated nickel dioxide with a large discharge capacity as an active material and having a high density so that a larger amount of the active material can be charged in a battery container with a limited volume, a production method for the same and a lithium secondary battery utilizing the cathode. The cathode for a lithium secondary battery includes lithiated nickel dioxide as an active material, and the lithiated nickel dioxide is produced by firing a mixture of a lithium compound and a nickel compound at a temperature ranging between 350.degree. C. and 800.degree. C. The supernatant obtained by dispersing 5 g of the lithiated nickel dioxide in 100 cm.sup.3 of water in a glass vessel for 5 minutes and allowing the resultant solution to stand for 30 seconds has pH of 12.00 or less. The production method includes the steps of obtaining the lithiated nickel dioxide as above and treating or milling the lithiated nickel dioxide in an atmosphere including carbon dioxide.

摘要翻译： 本发明提供了一种锂二次电池的阴极，其包括具有大放电容量的锂化二氧化镍作为活性材料并且具有高密度，使得可以将更多量的活性材料充入具有有限体积的电池容器中， 其制造方法和利用阴极的锂二次电池。 锂二次电池的阴极包括锂化二氧化镍作为活性物质，锂化二氧化镍通过在350℃〜800℃的温度范围内煅烧锂化合物和镍化合物的混合物来制造。 通过将5g锂化二氧化镍分散在玻璃容器中的100cm 3水中5分钟并使所得溶液静置30秒而获得的上清液的pH为12.00以下。 制备方法包括如下步骤：获得如上所述的锂化二氧化镍，并在包括二氧化碳的气氛中处理或研磨锂化二氧化镍。

公开(公告)号：US5595842A

公开(公告)日：1997-01-21

申请号：US438654

申请日：1995-05-09

申请人： Kenji Nakane ,  Yasunori Nishida ,  Chikashi Akamatsu ,  Tomoari Satoh ,  Kazuyuki Tanino ,  Taketsugu Yamamoto

发明人： Kenji Nakane ,  Yasunori Nishida ,  Chikashi Akamatsu ,  Tomoari Satoh ,  Kazuyuki Tanino ,  Taketsugu Yamamoto

IPC分类号： H01M4/52 ,  H01M4/525 ,  H01M10/052 ,  H01M10/36

CPC分类号： H01M10/052 ,  H01M4/525 ,  Y02T10/7011

摘要： A lithium secondary battery that includes a cathode containing, as an active material, a material that can be doped/undoped with lithium ions; an anode containing, as an active material, a lithium metal, a lithium alloy or a material that can be doped/undoped with lithium ions; and a liquid or solid electrolyte. In this lithium secondary battery, the active material used in the cathode is lithiated nickel dioxide containing gallium. As a result, the lithium secondary battery attains excellent cycle and overcharge resistance characteristics and has a high energy density.

摘要翻译： 一种锂二次电池，其包括含有可掺杂/未掺杂锂离子的材料作为活性材料的阴极; 含有作为活性物质的锂金属，锂合金或可掺杂/未掺杂锂离子的材料的阳极; 和液体或固体电解质。 在该锂二次电池中，阴极中使用的活性物质是含有镓的锂化二氧化镍。 结果，锂二次电池具有优异的循环和过充电电阻特性并且具有高的能量密度。

公开(公告)号：US06270927B1

公开(公告)日：2001-08-07

申请号：US09019726

申请日：1998-02-06

申请人： Kenji Nakane ,  Yasunori Nishida ,  Takeshi Miyai ,  Tomoari Satoh

发明人： Kenji Nakane ,  Yasunori Nishida ,  Takeshi Miyai ,  Tomoari Satoh

IPC分类号： H01M458

CPC分类号： H01M4/525 ,  C01G19/00 ,  C01G53/42 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2006/40 ,  H01M4/485 ,  H01M2004/021

摘要： Provided is a lithium secondary battery of a high energy density using a cathode active material having an excellent cycle characteristic in charging/discharging at a high capacity and a small irreversible capacity. The lithium secondary battery comprising: a cathode including a material that can be doped/undoped with lithium ions as an active material; an anode including a lithium metal, a lithium alloy, or a material that can be doped/undoped with lithium ions as an active material; and a liquid or solid electrolyte, wherein lithiated nickel dioxide containing tin is used as the cathode active material, and said lithiated nickel dioxide has a peak near 2&thgr;=34.4° and does not have a peak near 2&thgr;=22.5° in the X-ray diffraction pattern by CuK&agr; rays, or the intensity ratio of the peak near 2&thgr;=22.5° to the peak near 2&thgr;=34.4° is 1.2 or less.

摘要翻译： 本发明提供一种利用正极活性物质的能量密度高的锂二次电池，其在高容量充放电时具有优异的循环特性和小的不可逆容量。 锂二次电池包括：阴极，其包括可以掺杂/未掺杂有锂离子作为活性材料的材料; 包括锂金属，锂合金或可以掺杂/未掺杂有锂离子作为活性材料的材料的阳极; 和液体或固体电解质，其中使用含锂的二氧化锡含锡作为阴极活性材料，并且所述锂化二氧化镍在2θ= 34.4°附近具有峰值，并且在X射线中没有接近2θ= 22.5°的峰值 或者靠近2θ= 22.5°的峰值与2θ= 34.4°附近的峰值的强度比为1.2以下。

公开(公告)号：US5677086A

公开(公告)日：1997-10-14

申请号：US675288

申请日：1996-07-01

申请人： Tomoari Satoh ,  Kenji Nakane ,  Yasunori Nishida

发明人： Tomoari Satoh ,  Kenji Nakane ,  Yasunori Nishida

IPC分类号： C01G53/00 ,  H01M4/52 ,  H01M4/525 ,  H01M10/052 ,  H01M10/36

CPC分类号： H01M10/052 ,  C01G53/42 ,  H01M4/525 ,  C01P2002/30 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  Y02P70/54

摘要： The invention provides a cathode material for lithium secondary battery containing lithiated nickel dioxide having excellent charge/discharge characteristics and a process for producing the lithiated nickel dioxide, and a lithium secondary battery. That is, the cathode material for lithium secondary battery contains lithiated nickel dioxide having .alpha.-NaFeO.sub.2 structure and shows a coulomb efficiency of 85% or higher at the first charging and discharging, and the process for producing lithiated nickel dioxide comprises dispersing a nickel compound in a lithium nitrate solution, then evaporating the solvent to obtain a mixture of lithium nitrate and the nickel compound and firing the mixture in an atmosphere containing oxygen.

摘要翻译： 本发明提供了一种锂二次电池用阴极材料，其具有充电/放电特性优异的锂化二氧化镍和锂二次电池的制造方法以及锂二次电池。 也就是说，锂二次电池用阴极材料含有具有α-NaFeO 2结构的锂化二氧化镍，并且在第一次充放电时显示出库仑效率为85％以上，并且锂化二氧化镍的制造方法包括将镍化合物 硝酸锂溶液，然后蒸发溶剂，得到硝酸锂和镍化合物的混合物，并在含氧气氛中焙烧该混合物。