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公开(公告)号：US20240266538A1
公开(公告)日：2024-08-08
申请号：US18635132
申请日：2024-04-15
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 , H01M10/0525 , H01M10/0566
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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2.发明申请CARBON-BASED NEGATIVE ELECTRODE MATERIAL AND SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE MATERIAL 审中-公开基于碳的负极电极材料和二次电池，包括负极电极材料公开(公告)号：US20150200419A1
公开(公告)日：2015-07-16
申请号：US14669570
申请日：2015-03-26
Applicant: Semiconductor Energy Laboratory Co., LTD.
Inventor： Nobuhiro INOUE , Junpei MOMO , Hiroatsu TODORIKI , Teppei OGUNI
IPC: H01M10/0525 , H01M10/0569 , H01M4/587 , H01M4/583 , H01M4/36
CPC classification number: H01M10/0525 , B82Y30/00 , H01M4/366 , H01M4/583 , H01M4/587 , H01M10/0569 , H01M2004/021 , H01M2300/0028 , Y02E60/122 , Y02T10/7011
Abstract: 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.
Abstract translation: 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：US20200373581A1
公开(公告)日：2020-11-26
申请号：US16986372
申请日：2020-08-06
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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公开(公告)号：US20200052299A1
公开(公告)日：2020-02-13
申请号：US16599944
申请日：2019-10-11
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiroatsu TODORIKI , Yumiko SAITO , Takahiro KAWAKAMI , Kuniharu NOMOTO , Mikio YUKAWA
IPC: H01M4/583 , H01G11/36 , H01M10/0566 , H01M6/16 , H01M4/62 , H01M4/139 , H01G9/042 , H01G11/32 , H01M4/133 , H01G11/22 , C01B32/192 , C01B32/23 , B82Y40/00 , B82Y30/00 , H01M4/1393 , H01M4/587 , H01M4/04
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：US20160204440A1
公开(公告)日：2016-07-14
申请号：US15075387
申请日：2016-03-21
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiroatsu TODORIKI , Mikio YUKAWA , Yumiko SAITO , Masaki YAMAKAJI , Rika YATABE , Tatsuya IKENUMA
IPC: H01M4/62 , C01B31/04 , H01M10/052 , H01M4/58 , H01M4/36
CPC classification number: H01M4/625 , C01B32/23 , H01M4/136 , H01M4/364 , H01M4/366 , H01M4/5825 , H01M4/624 , H01M10/052
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 weight ratio of oxygen to carbon is greater than or equal to 0.405.
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Patent Agency Ranking
公开(公告)号：US20230378473A1
公开(公告)日：2023-11-23
申请号：US18231429
申请日：2023-08-08
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiroatsu TODORIKI , Junpei MOMO , Teppei OGUNI , Nobuhiro INOUE
CPC classification number: H01M4/624 , H01M4/0404 , H01M4/131 , H01M4/0471 , H01M4/364 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/587 , H01M4/625 , H01M4/627 , H01M10/052
Abstract: Described herein is a positive electrode comprising an active material particle, an acetylene black particle and net-like graphene. The positive electrode can be used in a battery.
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公开(公告)号：US20220115668A1
公开(公告)日：2022-04-14
申请号：US17556384
申请日：2021-12-20
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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公开(公告)号：US20150064565A1
公开(公告)日：2015-03-05
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
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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公开(公告)号：US20230307639A1
公开(公告)日：2023-09-28
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 , 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
CPC classification number: H01M4/5835 , H01G11/22 , H01M4/133 , H01G11/32 , H01M4/0438 , H01M4/587 , H01M4/1393 , B82Y30/00 , B82Y40/00 , C01B32/23 , C01B32/192 , H01G9/042 , H01M4/139 , H01M4/62 , H01M6/16 , H01M10/0566 , H01G11/36 , Y02E60/13 , 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：US20200274165A1
公开(公告)日：2020-08-27
申请号：US15930707
申请日：2020-05-13
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hiroatsu TODORIKI , Junpei MOMO , Teppei OGUNI , Nobuhiro INOUE
Abstract: 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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