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1.发明授权公开(公告)号：US09252419B2
公开(公告)日：2016-02-02
申请号：US13602350
申请日：2012-09-04
申请人： Takuya Miwa , Nobuhiro Inoue , Kuniharu Nomoto , Junpei Momo
发明人： Takuya Miwa , Nobuhiro Inoue , Kuniharu Nomoto , Junpei Momo
CPC分类号： H01M4/366 , C01B25/306 , C01B25/45 , C01B32/23 , C01P2006/40 , C30B7/10 , C30B29/14 , H01M4/04 , H01M4/0404 , H01M4/0435 , H01M4/0471 , H01M4/1397 , H01M4/485 , H01M4/583 , H01M4/62 , H01M10/0525 , H01M2004/028 , Y02P70/54
摘要： Occlusion and release of lithium ion are likely to one-dimensionally occur in the b-axis direction of a crystal in a lithium-containing composite oxide having an olivine structure. Thus, a positive electrode in which the b-axes of lithium-containing composite oxide single crystals are oriented vertically to a surface of a positive electrode current collector is provided. The lithium-containing composite oxide particles are mixed with graphene oxide and then pressure is applied thereto, whereby the rectangular parallelepiped or substantially rectangular parallelepiped particles are likely to slip. In addition, in the case where the rectangular parallelepiped or substantially rectangular parallelepiped particles whose length in the b-axis direction is shorter than those in the a-axis direction and the c-axis direction are used, when pressure is applied in one direction, the b-axes can be oriented in the one direction.
摘要翻译： 具有橄榄石结构的含锂复合氧化物中的结晶的b轴方向的锂离子的闭塞和释放容易发生一维的变化。 因此，提供了含锂复合氧化物单晶的b轴与正极集电体的表面垂直取向的正极。 将含锂复合氧化物颗粒与氧化石墨烯混合，然后施加压力，由此长方体或大致长方体的颗粒容易滑动。 此外，在使用长度方向的长轴方向的长方体或长方形的长方体的长度比a轴方向和c轴方向短的情况下，在一个方向施加压力的情况下， b轴可以在一个方向上定向。
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公开(公告)号：US20120308894A1
公开(公告)日：2012-12-06
申请号：US13484299
申请日：2012-05-31
申请人： Teppei Oguni , Takeshi Osada , Toshihiko Takeuchi , Kuniharu Nomoto , Kiyofumi Ogino , Hiroatsu Todoriki , Junpei Momo , Nobuhiro Inoue
发明人： Teppei Oguni , Takeshi Osada , Toshihiko Takeuchi , Kuniharu Nomoto , Kiyofumi Ogino , Hiroatsu Todoriki , Junpei Momo , Nobuhiro Inoue
CPC分类号： H01M4/364 , H01M4/134 , H01M4/386 , H01M10/0525 , Y10T29/43 , Y10T29/49115
摘要： A negative electrode and a power storage device are provided, which have one of an alloy-based particle and an alloy-based whisker and a carbon film including 1 to 50 graphene layers. A surface of the alloy-based particle or the alloy-based whisker is covered with the carbon film. In addition, a method of manufacturing a negative electrode and a method of manufacturing a power storage device are provided, which have the step of mixing an alloy-based particle or an alloy-based whisker with graphene oxide, and the step of heating the mixture in a vacuum or in a reducing atmosphere.
摘要翻译： 提供一种负极和蓄电装置，其具有合金基颗粒和合金基晶须中的一种以及包含1至50个石墨烯层的碳膜。 合金基颗粒或合金基晶须的表面被碳膜覆盖。 此外，提供了制造负极的方法和制造蓄电装置的方法，其具有将合金基颗粒或合金基晶须与氧化石墨烯混合的步骤，以及加热混合物的步骤 在真空或还原气氛中。
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3.发明授权Method of manufacturing positive electrode active material for lithium ion battery 有权锂离子电池用正极活性物质的制造方法公开(公告)号：US08470477B2
公开(公告)日：2013-06-25
申请号：US13595024
申请日：2012-08-27
申请人： Takuya Miwa , Kuniharu Nomoto , Nobuhiro Inoue
发明人： Takuya Miwa , Kuniharu Nomoto , Nobuhiro Inoue
CPC分类号： H01G9/042 , B82Y30/00 , H01M4/5825 , H01M4/622 , H01M4/625 , H01M10/04 , Y10T29/417 , Y10T29/49115
摘要： At least one of an aqueous solution A containing lithium, an aqueous solution B containing iron, manganese, cobalt, or nickel, and an aqueous solution C containing a phosphoric acid includes graphene oxide. The aqueous solution A is dripped into the aqueous solution C, so that a mixed solution E including a precipitate D is prepared. The mixed solution E is dripped into the aqueous solution B, so that a mixed solution G including a precipitate F is prepared. The mixed solution G is subjected to heat treatment in a pressurized atmosphere, so that a mixed solution H is prepared, and the mixed solution H is then filtered. Thus, particles of a compound containing lithium and oxygen which have a small size are obtained.
摘要翻译： 含有锂的水溶液A，含有铁，锰，钴或镍的水溶液B和含有磷酸的水溶液C中的至少一种包括氧化石墨烯。 将水溶液A滴入水溶液C中，制备包含析出物D的混合溶液E。 将混合溶液E滴加到水溶液B中，从而制备包含沉淀物F的混合溶液G. 混合溶液G在加压气氛中进行热处理，制备混合溶液H，然后过滤混合溶液H. 因此，获得了具有小尺寸的含有锂和氧的化合物的颗粒。
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公开(公告)号：US20130047423A1
公开(公告)日：2013-02-28
申请号：US13595024
申请日：2012-08-27
申请人： Takuya MIWA , Kuniharu Nomoto , Nobuhiro Inoue
发明人： Takuya MIWA , Kuniharu Nomoto , Nobuhiro Inoue
CPC分类号： H01G9/042 , B82Y30/00 , H01M4/5825 , H01M4/622 , H01M4/625 , H01M10/04 , Y10T29/417 , Y10T29/49115
摘要： At least one of an aqueous solution A containing lithium, an aqueous solution B containing iron, manganese, cobalt, or nickel, and an aqueous solution C containing a phosphoric acid includes graphene oxide. The aqueous solution A is dripped into the aqueous solution C, so that a mixed solution E including a precipitate D is prepared. The mixed solution E is dripped into the aqueous solution B, so that a mixed solution G including a precipitate F is prepared. The mixed solution G is subjected to heat treatment in a pressurized atmosphere, so that a mixed solution H is prepared, and the mixed solution H is then filtered. Thus, particles of a compound containing lithium and oxygen which have a small size are obtained.
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5.发明申请公开(公告)号：US20130052522A1
公开(公告)日：2013-02-28
申请号：US13586952
申请日：2012-08-16
申请人： Nobuhiro Inoue , Junpei Momo , Hiroatsu Todoriki , Teppei Oguni
发明人： Nobuhiro Inoue , Junpei Momo , Hiroatsu Todoriki , Teppei Oguni
CPC分类号： H01M10/0525 , B82Y30/00 , H01M4/366 , H01M4/583 , H01M4/587 , H01M10/0569 , H01M2004/021 , H01M2300/0028 , Y02E60/122 , Y02T10/7011
摘要： To provide a carbon-based negative electrode material which can be used with an electrolyte containing PC as a main ingredient, a carbon-based negative electrode material having a graphene layer structure is crystalline and has pores. That is, the crystal structure of the carbon-based negative electrode material is distorted more significantly than that of graphite. Accordingly, the carbon-based negative electrode material has a larger interlayer distance between graphenes than graphite. It has been shown that such a negative electrode material can be used for a secondary battery which contains an electrolyte containing PC as a main ingredient.
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6.发明授权公开(公告)号：US08993156B2
公开(公告)日：2015-03-31
申请号：US13586952
申请日：2012-08-16
申请人： Nobuhiro Inoue , Junpei Momo , Hiroatsu Todoriki , Teppei Oguni
发明人： Nobuhiro Inoue , Junpei Momo , Hiroatsu Todoriki , Teppei Oguni
IPC分类号： H01M6/14 , H01M4/587 , H01M10/0525 , H01M10/0569 , B82Y30/00 , H01M4/02
CPC分类号： H01M10/0525 , B82Y30/00 , H01M4/366 , H01M4/583 , H01M4/587 , H01M10/0569 , H01M2004/021 , H01M2300/0028 , Y02E60/122 , Y02T10/7011
摘要： To provide a carbon-based negative electrode material which can be used with an electrolyte containing PC as a main ingredient, a carbon-based negative electrode material having a graphene layer structure is crystalline and has pores. That is, the crystal structure of the carbon-based negative electrode material is distorted more significantly than that of graphite. Accordingly, the carbon-based negative electrode material has a larger interlayer distance between graphenes than graphite. It has been shown that such a negative electrode material can be used for a secondary battery which contains an electrolyte containing PC as a main ingredient.
摘要翻译： 为了提供可与含PC的电解质一起使用的碳类负极材料作为主要成分，具有石墨烯层结构的碳类负极材料为结晶性并具有孔。 也就是说，碳基负极材料的晶体结构比石墨的晶体结构变得更显着。 因此，碳系负极材料的石墨层之间的层间距离比石墨多。 已经表明，这种负极材料可以用于含有以PC为主要成分的电解质的二次电池。
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公开(公告)号：US10243214B2
公开(公告)日：2019-03-26
申请号：US13480628
申请日：2012-05-25
申请人： Hiroatsu Todoriki , Junpei Momo , Teppei Oguni , Nobuhiro Inoue
发明人： Hiroatsu Todoriki , Junpei Momo , Teppei Oguni , Nobuhiro Inoue
IPC分类号： H01M4/131 , H01M4/04 , H01M4/36 , H01M4/62 , H01M4/525 , H01M4/505 , H01M4/58 , H01M4/587 , H01M10/052
摘要： To increase the conductivity and electric capacity of an electrode which includes active material particles and the like and is used in a battery, a graphene net including 1 to 100 graphene sheets is used instead of a conventionally used conduction auxiliary agent and binder. The graphene net which has a two-dimensional expansion and a three-dimensional structure is more likely to touch active material particles or another conduction auxiliary agent, thereby increasing the conductivity and the bonding strength between active material particles. This graphene net is obtained by mixing graphene oxide and active material particles and then heating the mixture in a vacuum or a reducing atmosphere.
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公开(公告)号：US09577261B2
公开(公告)日：2017-02-21
申请号：US13419639
申请日：2012-03-14
CPC分类号： H01M10/0525 , C30B1/00 , H01M4/13 , H01M4/136 , H01M4/362 , H01M4/5825 , H01M4/665 , H01M4/668 , H01M2004/021 , H01M2004/028 , Y02E60/122 , Y02P70/54
摘要： A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.
摘要翻译： 锂离子二次电池包括正极，负极和设置在正极和负极之间的电解质。 正极包括在正极集电体上的正极集电体和正极活性物质层。 正极活性物质层包含多个由LiMPO4表示的含锂复合氧化物（M为Fe（II），Mn（II），Co（II），Ni（II））中的一种以上。 这是一个通用公式。 所述含锂复合氧化物是b轴方向的长度短于a轴方向和c轴方向的长度的平坦的单晶粒子。 在正极集电体上设置含锂复合氧化物，使得单晶粒子的b轴与正极集电体的表面相交。
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公开(公告)号：US20120308891A1
公开(公告)日：2012-12-06
申请号：US13480628
申请日：2012-05-25
申请人： Hiroatsu TODORIKI , Junpei Momo , Teppei Oguni , Nobuhiro Inoue
发明人： Hiroatsu TODORIKI , Junpei Momo , Teppei Oguni , Nobuhiro Inoue
CPC分类号： H01M4/624 , H01M4/0404 , H01M4/0471 , H01M4/131 , H01M4/364 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/587 , H01M4/625 , H01M4/627 , H01M10/052
摘要： To increase the conductivity and electric capacity of an electrode which includes active material particles and the like and is used in a battery, a graphene net including 1 to 100 graphene sheets is used instead of a conventionally used conduction auxiliary agent add binder. The graphene net which has a two-dimensional expansion and a three-dimensional structure is more likely to touch active material particles or another conduction auxiliary agent, thereby increasing the conductivity and the bonding strength between active material particles. This graphene net is obtained by mixing graphene oxide and active material particles and then heating the mixture in a vacuum or a reducing atmosphere.
摘要翻译： 为了提高包含活性物质粒子等并用于电池的电极的导电性和电容量，使用包含1〜100个石墨烯片的石墨烯网代替常规使用的导电助剂添加粘合剂。 具有二维膨胀和三维结构的石墨烯网更可能接触活性材料颗粒或另一导电助剂，从而增加活性材料颗粒之间的导电性和结合强度。 该石墨烯网通过混合氧化石墨烯和活性材料颗粒，然后在真空或还原气氛中加热混合物而获得。
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公开(公告)号：US20120237822A1
公开(公告)日：2012-09-20
申请号：US13419639
申请日：2012-03-14
CPC分类号： H01M10/0525 , C30B1/00 , H01M4/13 , H01M4/136 , H01M4/362 , H01M4/5825 , H01M4/665 , H01M4/668 , H01M2004/021 , H01M2004/028 , Y02E60/122 , Y02P70/54
摘要： A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.
摘要翻译： 锂离子二次电池包括正极，负极和设置在正极和负极之间的电解质。 正极包括在正极集电体上的正极集电体和正极活性物质层。 正极活性物质层包含多个由LiMPO4表示的含锂复合氧化物（M为Fe（II），Mn（II），Co（II），Ni（II））中的一种以上。 这是一个通用公式。 所述含锂复合氧化物是b轴方向的长度短于a轴方向和c轴方向的长度的平坦的单晶粒子。 在正极集电体上设置含锂复合氧化物，使得单晶粒子的b轴与正极集电体的表面相交。
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