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公开(公告)号：US10998141B2
公开(公告)日：2021-05-04
申请号：US16840659
申请日：2020-04-06
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Yumiko Saito , Rie Yokoi , Mayumi Mikami
IPC: H01G11/48 , H01M4/38 , H01G11/50 , H01G11/30 , H01M4/48 , H01M4/13 , H01M4/66 , H01G11/32 , H01G11/52 , H01G11/62 , H01M4/04 , H01M4/131 , H01M4/137 , H01M4/1391 , H01M4/1399 , H01M4/36 , H01M4/60 , H01M10/0525 , H01M4/02
Abstract: A mixture of amorphous PAHs and at least one of a carrier ion storage metal, a Sn compound, a carrier ion storage alloy, a metal compound, Si, Sb, and SiO2 is used as the negative electrode active material. The theoretical capacity of amorphous PAHs greatly exceeds that of a graphite based carbon material. Thus, the use of amorphous PAHs enables the negative electrode active material to have a higher capacity than in the case of using the graphite-based carbon material. Further, addition of at least one of the carrier ion storage metal, the Sn compound, the carrier ion storage alloy, the metal compound, Si, Sb, and SiO2 to the amorphous PAHs enables the negative electrode active material to have a higher capacity than the case of only using the amorphous PAHs.
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公开(公告)号：US09666326B2
公开(公告)日：2017-05-30
申请号：US14272718
申请日：2014-05-08
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takahiro Kawakami , Shuhei Yoshitomi , Teruaki Ochiai , Satoshi Seo , Yohei Momma , Yumiko Saito
CPC classification number: H01B1/08 , C01G45/1242 , C01G45/1257 , C01P2002/72 , C01P2002/76 , C01P2004/80 , C01P2006/40 , H01M4/131 , H01M4/364 , H01M4/366 , H01M4/505 , Y02P70/54
Abstract: To increase the amount of lithium ions that can be received and released in and from a positive electrode active material to achieve high capacity and high energy density of a secondary battery. A composite material of crystallites of LiMn2O4 (crystallites with a spinel crystal structure) and crystallites of Li2MnO3 (crystallites with a layered rock-salt crystal structure) is used as a positive electrode active material. The lithium manganese oxide composite has high structural stability and high capacity.
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公开(公告)号：US11735731B2
公开(公告)日：2023-08-22
申请号：US17983140
申请日：2022-11-08
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiroatsu Todoriki , Yumiko Saito , Takahiro Kawakami , Kuniharu Nomoto , Mikio Yukawa
IPC: H01M4/583 , H01G11/22 , H01M4/133 , H01G11/32 , H01M4/04 , H01M4/587 , H01M4/1393 , B82Y30/00 , B82Y40/00 , C01B32/23 , C01B32/192 , H01G9/042 , H01M4/139 , H01M4/62 , H01M6/16 , H01M10/0566 , H01G11/36 , H01M10/0525
CPC classification number: H01M4/5835 , B82Y30/00 , B82Y40/00 , C01B32/192 , C01B32/23 , H01G9/042 , H01G11/22 , H01G11/32 , H01G11/36 , H01M4/0438 , H01M4/133 , H01M4/139 , H01M4/1393 , H01M4/587 , H01M4/62 , H01M6/16 , H01M10/0566 , H01M10/0525 , Y02E60/13
Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.
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公开(公告)号：US10461332B2
公开(公告)日：2019-10-29
申请号：US14507872
申请日：2014-10-07
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiroatsu Todoriki , Yumiko Saito , Takahiro Kawakami , Kuniharu Nomoto , Mikio Yukawa
IPC: H01M4/583 , H01M4/133 , H01G11/36 , H01G11/22 , H01G11/32 , H01G9/042 , H01M4/04 , H01M4/1393 , H01M4/587 , B82Y30/00 , B82Y40/00 , H01M4/139 , H01M4/62 , H01M6/16 , H01M10/0566 , C01B32/23 , C01B32/192 , H01M10/0525
Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.
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公开(公告)号：US20190067701A1
公开(公告)日：2019-02-28
申请号：US16170140
申请日：2018-10-25
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiroatsu Todoriki , Mikio Yukawa , Yumiko Saito , Masaki Yamakaji , Rika Yatabe , Tatsuya Ikenuma
Abstract: A graphene oxide used as a raw material of a conductive additive for forming an active material layer with high electron conductivity with a small amount of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery using the graphene oxide as a conductive additive is provided. The graphene oxide is used as a raw material of a conductive additive in a positive electrode for a nonaqueous secondary battery and, in the graphene oxide, the atomic ratio of oxygen to carbon is greater than or equal to 0.405.
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6.发明申请LITHIUM MANGANESE OXIDE COMPOSITE, SECONDARY BATTERY, AND MANUFACTURING METHOD THEREOF 有权锂锰氧化物复合材料，二次电池及其制造方法
公开(公告)号：US20140332715A1
公开(公告)日：2014-11-13
申请号：US14272718
申请日：2014-05-08
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takahiro KAWAKAMI , Shuhei Yoshitomi , Teruaki Ochiai , Satoshi Seo , Yohei Momma , Yumiko Saito
CPC classification number: H01B1/08 , C01G45/1242 , C01G45/1257 , C01P2002/72 , C01P2002/76 , C01P2004/80 , C01P2006/40 , H01M4/131 , H01M4/364 , H01M4/366 , H01M4/505 , Y02P70/54
Abstract: To increase the amount of lithium ions that can be received and released in and from a positive electrode active material to achieve high capacity and high energy density of a secondary battery. A composite material of crystallites of LiMn2O4 (crystallites with a spinel crystal structure) and crystallites of Li2MnO3 (crystallites with a layered rock-salt crystal structure) is used as a positive electrode active material. The lithium manganese oxide composite has high structural stability and high capacity.
Abstract translation: 为了增加可以从正极活性物质中吸收和释放的锂离子的量，以实现二次电池的高容量和高能量密度。 使用LiMn2O4（具有尖晶石晶体结构的微晶）和Li2MnO3微晶（具有层状岩盐晶体结构的微晶）的微晶复合材料作为正极活性物质。 该锰酸锂复合材料具有结构稳定性高，容量大的特点。
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7.发明授权
公开(公告)号：US09293236B2
公开(公告)日：2016-03-22
申请号：US14318727
申请日：2014-06-30
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takahiro Kawakami , Shuhei Yoshitomi , Teruaki Ochiai , Yumiko Saito , Yohei Momma , Satoshi Seo , Mayumi Mikami , Shunsuke Adachi
CPC classification number: H01M4/505 , H01B1/08 , H01M4/362 , H01M4/525 , H01M10/052 , H01M10/0525 , H01M2004/028 , H01M2220/20 , H01M2220/30 , Y02E60/122
Abstract: The amount of lithium ions that can be received and released in and from a positive electrode active material is increased, and high capacity and high energy density of a secondary battery are achieved. Provided is a lithium-manganese composite oxide represented by LixMnyMzOw, where M is a metal element other than Li and Mn, or Si or P, and y, z, and w satisfy 0≦x/(y+z) 0, z>0, 0.26≦(y+z)/w
Abstract translation: 能够在正极活性物质中吸收和释放的锂离子的量增加，二次电池的高容量和高能量密度得以实现。 提供了由LixMnyMzOw表示的锂锰复合氧化物，其中M是除Li和Mn以外的金属元素，或Si或P，y，z和w满足0＆lt; nlE; x /（y + z）<2，y > 0，z> 0,0.26和nlE;（y + z）/ w <0.5和0.2
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公开(公告)号：US08883351B2
公开(公告)日：2014-11-11
申请号：US13629645
申请日：2012-09-28
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Hiroatsu Todoriki , Yumiko Saito , Takahiro Kawakami , Kuniharu Nomoto , Mikio Yukawa
IPC: H01M4/583 , H01G9/042 , H01M4/04 , H01G11/22 , H01M6/16 , H01M4/139 , H01M10/0566 , H01M4/62 , H01G11/32 , C01B31/04
CPC classification number: H01M4/5835 , B82Y30/00 , B82Y40/00 , C01B32/192 , C01B32/23 , H01G9/042 , H01G11/22 , H01G11/32 , H01G11/36 , H01M4/0438 , H01M4/133 , H01M4/139 , H01M4/1393 , H01M4/587 , H01M4/62 , H01M6/16 , H01M10/0525 , H01M10/0566 , Y02E60/13
Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.
Abstract translation: 石墨烯的形成方法包括在第一导电层上形成包括氧化石墨烯的层的步骤; 并且在其中浸入作为工作电极的第一导电层和作为对电极的第二导电层的电解质中，提供氧化石墨烯的还原反应发生到第一导电层的电位。 至少包括正电极，负极，电解质和隔膜的蓄电装置的制造方法包括通过所述正极和负极中的一个或两个的活性物质层形成石墨烯的步骤 形成方法。
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9.发明申请ELECTRIC DOUBLE LAYER CAPACITOR, LITHIUM ION CAPACITOR AND MANUFACTURING METHOD THEREOF 审中-公开电双层电容器，锂离子电容器及其制造方法
公开(公告)号：US20140230208A1
公开(公告)日：2014-08-21
申请号：US14263000
申请日：2014-04-28
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Junpei Momo , Yumiko Saito , Rie Matsubara , Hiroatsu Todoriki
IPC: H01G9/00
CPC classification number: H01G9/0029 , H01G11/06 , H01G11/24 , H01G11/30 , H01G11/50 , H01G11/86 , H01G2009/0007 , Y02E60/13 , Y02T10/7022 , Y10T29/417
Abstract: A thin energy storage device having high capacity is obtained. An energy storage device having high output is obtained. A current collector and an active material layer are formed in the same manufacturing step. The number of manufacturing steps of an energy storage device is reduced. The manufacturing cost of an energy storage device is suppressed. One embodiment of the present invention relates to an electric double layer capacitor which includes a pair of electrodes including a porous metal material, and an electrolyte provided between the pair of electrodes; or a lithium ion capacitor which includes a positive electrode that is a porous metal body functioning as a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte provided between the positive electrode and the negative electrode.
Abstract translation: 获得了具有高容量的薄能量储存装置。 获得具有高输出的能量存储装置。 在相同的制造步骤中形成集电体和活性物质层。 能量储存装置的制造步骤数量减少。 能量储存装置的制造成本被抑制。 本发明的一个实施例涉及一种双电层电容器，其包括一对包括多孔金属材料的电极和设置在该对电极之间的电解质; 或包括作为正极集电体的多孔金属体的正极和正极活性物质层的锂离子电容器，具有负极集电体和负极活性物质层的负极，以及 提供在正极和负极之间的电解质。
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公开(公告)号：US11990621B2
公开(公告)日：2024-05-21
申请号：US18205264
申请日：2023-06-02
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiroatsu Todoriki , Yumiko Saito , Takahiro Kawakami , Kuniharu Nomoto , Mikio Yukawa
IPC: H01M4/583 , B82Y30/00 , B82Y40/00 , C01B32/192 , C01B32/23 , H01G9/042 , H01G11/22 , H01G11/32 , H01G11/36 , H01M4/04 , H01M4/133 , H01M4/139 , H01M4/1393 , H01M4/587 , H01M4/62 , H01M6/16 , H01M10/0566 , H01M10/0525
CPC classification number: H01M4/5835 , B82Y30/00 , B82Y40/00 , C01B32/192 , C01B32/23 , H01G9/042 , H01G11/22 , H01G11/32 , H01G11/36 , H01M4/0438 , H01M4/133 , H01M4/139 , H01M4/1393 , H01M4/587 , H01M4/62 , H01M6/16 , H01M10/0566 , H01M10/0525 , Y02E60/13
Abstract: The formation method of graphene includes the steps of forming a layer including graphene oxide over a first conductive layer; and supplying a potential at which the reduction reaction of the graphene oxide occurs to the first conductive layer in an electrolyte where the first conductive layer as a working electrode and a second conductive layer with a as a counter electrode are immersed. A manufacturing method of a power storage device including at least a positive electrode, a negative electrode, an electrolyte, and a separator includes a step of forming graphene for an active material layer of one of or both the positive electrode and the negative electrode by the formation method.
