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公开(公告)号：US09852850B2
公开(公告)日：2017-12-26
申请号：US14802326
申请日：2015-07-17
Applicant: Semiconductor Energy Laboratory Co., LTD.
Inventor： Nobuhiro Inoue , Ryota Tajima , Kazutaka Kuriki , Mitsuhiro Ichijo , Yoshikazu Hiura , Mai Sugikawa
IPC: H01M4/136 , H01M4/131 , H01M4/134 , H01M10/0525 , H01G11/30 , H01M4/13 , H01M4/36 , H01M4/38 , H01M10/052 , H01M4/04 , H01M4/133 , H01M4/139 , H01M4/58 , H01M4/587 , H01M10/04 , H01M10/058 , H01M10/0585 , H01M10/42
CPC classification number: H01G11/30 , H01M4/0428 , H01M4/13 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/139 , H01M4/366 , H01M4/386 , H01M4/5825 , H01M4/587 , H01M10/0427 , H01M10/0431 , H01M10/0436 , H01M10/052 , H01M10/058 , H01M10/0585 , H01M10/425 , H01M2220/20 , H01M2220/30 , Y02E60/122 , Y02E60/13 , Y02P70/54 , Y02T10/7011 , Y02T10/7022
Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material is provided over a negative electrode current collector, and the negative electrode active material layer is formed in such a manner that first layers and second layers are alternately stacked. The first layer includes at least an element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second layer includes oxygen and the same element as the one included in the first layer.
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公开(公告)号：US09711292B2
公开(公告)日：2017-07-18
申请号：US14178535
申请日：2014-02-12
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takuya Miwa , Kuniharu Nomoto , Nobuhiro Inoue
CPC classification number: H01G9/042 , B82Y30/00 , H01M4/5825 , H01M4/622 , H01M4/625 , H01M10/04 , Y10T29/417 , Y10T29/49115
Abstract: 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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公开(公告)号：US09698412B2
公开(公告)日：2017-07-04
申请号：US15285725
申请日：2016-10-05
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Nobuhiro Inoue , Kai Kimura , Sachiko Kataniwa , Ryota Tajima
IPC: H01M10/05 , H01M4/131 , H01G11/68 , H01M4/62 , H01M4/1393 , H01M4/133 , H01M4/36 , H01G11/06 , H01G11/28 , H01G11/50 , H01G11/46 , H01G11/58 , H01M4/134 , H01M4/38 , H01M4/485 , H01G11/66 , H01M4/48 , H01M10/0525 , H01M4/02
CPC classification number: H01M4/131 , H01G11/06 , H01G11/28 , H01G11/46 , H01G11/50 , H01G11/58 , H01G11/66 , H01G11/68 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/362 , H01M4/366 , H01M4/386 , H01M4/483 , H01M4/485 , H01M4/62 , H01M4/628 , H01M10/0525 , H01M2004/027 , Y02E60/122 , Y02E60/13 , Y02P70/54 , Y02T10/7022
Abstract: A decomposition reaction of an electrolyte solution and the like caused as a side reaction of charge and discharge is minimized in repeated charge and discharge of a lithium ion battery or a lithium ion capacitor, and thus the lithium ion battery or the lithium ion capacitor can have long-term cycle performance. A negative electrode for a power storage device includes a negative electrode current collector and a negative electrode active material layer which includes a plurality of particles of a negative electrode active material. Each of the particles of the negative electrode active material has an inorganic compound film containing a first inorganic compound on part of its surface. The negative electrode active material layer has a film in contact with an exposed part of the negative electrode active material and part of the inorganic compound film. The film contains an organic compound and a second inorganic compound.
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34.发明授权公开(公告)号：US09685653B2
公开(公告)日：2017-06-20
申请号：US15200015
申请日：2016-07-01
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Nobuhiro Inoue , Sachiko Kataniwa , Kazutaka Kuriki , Junpei Momo
IPC: H01M10/04 , H01M4/04 , H01G11/28 , H01M4/62 , H01G11/50 , H01G11/84 , H01M4/133 , H01M4/583 , H01M10/0525 , H01M4/02
CPC classification number: H01M4/0404 , H01G11/28 , H01G11/50 , H01G11/84 , H01M4/0471 , H01M4/133 , H01M4/583 , H01M4/623 , H01M4/628 , H01M10/0525 , H01M2004/027 , Y02E60/13 , Y02T10/7022
Abstract: An object is to suppress electrochemical decomposition of an electrolyte solution and the like at a negative electrode in a lithium ion battery or a lithium ion capacitor; thus, irreversible capacity is reduced, cycle performance is improved, or operating temperature range is extended. A negative electrode for a power storage device including a negative electrode current collector, a negative electrode active material layer which is over the negative electrode current collector and includes a plurality of particles of a negative electrode active material, and a film covering part of the negative electrode active material. The film has an insulating property and lithium ion conductivity.
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35.发明授权公开(公告)号：US09556536B2
公开(公告)日：2017-01-31
申请号：US14923798
申请日：2015-10-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Takuya Miwa , Nobuhiro Inoue , Kuniharu Nomoto , Junpei Momo
IPC: H01M4/485 , C30B29/14 , H01M4/04 , H01M4/583 , C01B25/30 , C01B25/45 , C01B31/04 , H01M4/1397 , H01M4/02
CPC classification number: 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
Abstract: 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.
Abstract translation: 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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Patent Agency Ranking
公开(公告)号：US09490080B2
公开(公告)日：2016-11-08
申请号：US14859703
申请日：2015-09-21
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Nobuhiro Inoue , Kai Kimura , Sachiko Kataniwa , Ryota Tajima
IPC: H01M2/00 , H01G11/46 , H01G11/68 , H01M4/62 , H01M4/1393 , H01M4/133 , H01M4/36 , H01G11/06 , H01G11/28 , H01G11/50 , H01G11/58 , H01M4/131 , H01M4/134 , H01M4/38 , H01M4/485 , H01M4/02
CPC classification number: H01M4/131 , H01G11/06 , H01G11/28 , H01G11/46 , H01G11/50 , H01G11/58 , H01G11/66 , H01G11/68 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/362 , H01M4/366 , H01M4/386 , H01M4/483 , H01M4/485 , H01M4/62 , H01M4/628 , H01M10/0525 , H01M2004/027 , Y02E60/122 , Y02E60/13 , Y02P70/54 , Y02T10/7022
Abstract: A decomposition reaction of an electrolyte solution and the like caused as a side reaction of charge and discharge is minimized in repeated charge and discharge of a lithium ion battery or a lithium ion capacitor, and thus the lithium ion battery or the lithium ion capacitor can have long-term cycle performance. A negative electrode for a power storage device includes a negative electrode current collector and a negative electrode active material layer which includes a plurality of particles of a negative electrode active material. Each of the particles of the negative electrode active material has an inorganic compound film containing a first inorganic compound on part of its surface. The negative electrode active material layer has a film in contact with an exposed part of the negative electrode active material and part of the inorganic compound film. The film contains an organic compound and a second inorganic compound.
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37.发明申请POWER STORAGE DEVICE ELECTRODE, METHOD FOR FORMING THE SAME, POWER STORAGE DEVICE, AND ELECTRICAL DEVICE 有权蓄电装置电极，其形成方法，蓄电装置及电气装置公开(公告)号：US20140127566A1
公开(公告)日：2014-05-08
申请号：US14060674
申请日：2013-10-23
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazutaka Kuriki , Kai Kimura , Nobuhiro Inoue , Ryota Tajima , Tamae Moriwaka , Kiyofumi Ogino
CPC classification number: H01M4/366 , H01G11/06 , H01G11/28 , H01M4/667 , H01M10/4235 , Y02E60/13 , Y02P70/54 , Y02T10/7022
Abstract: Irreversible capacity which causes a decrease in the charge and discharge capacity of a power storage device is reduced, and electrochemical decomposition of an electrolyte solution and the like on a surface of an electrode is inhibited. Further, the cycle characteristics of the power storage device is improved by reducing or inhibiting a decomposition reaction of the electrolyte solution and the like occurring as a side reaction in repeated charging and discharging of the power storage device. A power storage device electrode includes a current collector and an active material layer that is over the current collector and includes a binder and an active material. A coating film is provided on at least part of a surface of the active material. The coating film is spongy.
Abstract translation: 导致蓄电装置的充放电能力下降的不可逆容量降低，电极表面的电解液等的电化学分解受到抑制。 此外，通过减少或抑制在蓄电装置的重复充放电中作为副反应而发生的电解液等的分解反应，能够提高蓄电装置的循环特性。 蓄电装置电极包括集电体和活性物质层，该活性物质层在集电体上方并且包括粘合剂和活性物质。 在活性物质表面的至少一部分上设置涂膜。 涂膜是海绵状的。
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38.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：US08685570B2
公开(公告)日：2014-04-01
申请号：US13923428
申请日：2013-06-21
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Takuya Miwa , Kuniharu Nomoto , Nobuhiro Inoue
CPC classification number: H01G9/042 , B82Y30/00 , H01M4/5825 , H01M4/622 , H01M4/625 , H01M10/04 , Y10T29/417 , Y10T29/49115
Abstract: 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.
Abstract translation: 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：US11677073B2
公开(公告)日：2023-06-13
申请号：US17094526
申请日：2020-11-10
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Nobuhiro Inoue , Kiyofumi Ogino
IPC: H01M4/38 , H01G11/06 , H01G11/24 , H01G11/50 , H01M4/13 , H01M4/134 , H01M4/36 , H01M10/052 , H01M4/48 , H01M10/0525 , H01M4/02
CPC classification number: H01M4/386 , H01G11/06 , H01G11/24 , H01G11/50 , H01M4/13 , H01M4/134 , H01M4/366 , H01M4/38 , H01M4/48 , H01M10/052 , H01M10/0525 , H01M2004/027 , Y02E60/13
Abstract: A power storage device with high capacity is provided. Alternatively, a power storage device with excellent cycle characteristics is provided. Alternatively, a power storage device with high charge and discharge efficiency is provided. Alternatively, a power storage device with a long lifetime is provided. A negative electrode active material includes a first region and a second region. The first region includes at least one element selected from Si, Mg, Ca, Ga, Al, Ge, Sn, Pb, Sb, Bi, Ag, Zn, Cd, As, Hg, and In. The second region includes oxygen and the same element as the one included in the first region. The crystallite size of the element included in the first region is larger than or equal to 1 nm and smaller than or equal to 10 nm.
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公开(公告)号：US10566649B2
公开(公告)日：2020-02-18
申请号：US15608439
申请日：2017-05-30
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Tomoya Futamura , Tamae Moriwaka , Takahiro Kawakami , Junpei Momo , Nobuhiro Inoue
Abstract: 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.
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