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1.
公开(公告)号:US10483044B2
公开(公告)日:2019-11-19
申请号:US15685726
申请日:2017-08-24
发明人: Nobuhiro Inoue , Ryota Tajima , Tamae Moriwaka , Junpei Momo , Teppei Oguni , Kai Kimura , Kazutaka Kuriki , Shunpei Yamazaki
IPC分类号: H01M4/36 , H01G9/042 , H01M4/02 , H01M4/133 , H01M4/134 , H01G11/06 , H01G11/26 , H01G11/50 , H01M10/0525
摘要: To improve the reliability of a power storage device. A granular active material including carbon is used, and a net-like structure is formed on part of a surface of the granular active material. In the net-like structure, a carbon atom included in the granular active material is bonded to a silicon atom or a metal atom through an oxygen atom. Formation of the net-like structure suppresses reductive decomposition of an electrolyte solution, leading to a reduction in irreversible capacity. A power storage device using the above active material has high cycle performance and high reliability.
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公开(公告)号:US10217752B2
公开(公告)日:2019-02-26
申请号:US15591150
申请日:2017-05-10
发明人: Tomoaki Atsumi , Shuhei Nagatsuka , Tamae Moriwaka , Yuta Endo
IPC分类号: H01L29/10 , H01L27/115 , H01L29/786 , H01L27/11551 , H01L27/1156 , H01L27/06 , G11C7/16 , G11C8/14 , G11C11/403 , G11C11/408 , G11C11/24 , H01L29/24
摘要: [Problem] To provide a semiconductor device suitable for miniaturization. To provide a highly reliable semiconductor device. To provide a semiconductor device with improved operating speed.[Solving Means] A semiconductor device including a memory cell including first to cth (c is a natural number of 2 or more) sub memory cells, wherein: the jth sub memory cell includes a first transistor, a second transistor, and a capacitor; a first semiconductor layer included in the first transistor and a second semiconductor layer included in the second transistor include an oxide semiconductor; one of terminals of the capacitor is electrically connected to a gate electrode included in the second transistor; the gate electrode included in the second transistor is electrically connected to one of a source electrode and a drain electrode which are included in the first transistor; and when j≥2, the jth sub memory cell is arranged over the j−1th sub memory cell.
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3.
公开(公告)号:US09754728B2
公开(公告)日:2017-09-05
申请号:US14032214
申请日:2013-09-20
发明人: Nobuhiro Inoue , Ryota Tajima , Tamae Moriwaka , Junpei Momo , Teppei Oguni , Kai Kimura , Kazutaka Kuriki , Shunpei Yamazaki
IPC分类号: H01M4/133 , H01G9/042 , H01M4/36 , H01M4/02 , H01M4/134 , H01G11/06 , H01G11/26 , H01G11/50 , H01M10/0525
CPC分类号: H01G9/042 , H01G11/06 , H01G11/26 , H01G11/50 , H01M4/02 , H01M4/133 , H01M4/134 , H01M4/366 , H01M10/0525 , Y02E60/122 , Y02E60/13
摘要: To improve the reliability of a power storage device. A granular active material including carbon is used, and a net-like structure is formed on part of a surface of the granular active material. In the net-like structure, a carbon atom included in the granular active material is bonded to a silicon atom or a metal atom through an oxygen atom. Formation of the net-like structure suppresses reductive decomposition of an electrolyte solution, leading to a reduction in irreversible capacity. A power storage device using the above active material has high cycle performance and high reliability.
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公开(公告)号:US09614258B2
公开(公告)日:2017-04-04
申请号:US14107347
申请日:2013-12-16
发明人: Minoru Takahashi , Kei Takahashi , Jun Koyama , Junpei Momo , Tamae Moriwaka
CPC分类号: H01M10/48 , G01R31/3606 , H01M10/486
摘要: To provide a power storage device, an operation condition of which is easily analyzed. A secondary battery includes a sensor that is a measurement unit, a microcontroller unit that is a determination unit, and a memory that is a memory unit. With the sensor, conditions of the secondary battery such as the remaining battery power, the voltage, the current, and the temperature are measured. The microcontroller unit performs arithmetic processing of the measurement results and determines the operation condition of the secondary battery. Further, the microcontroller unit stores the measurement result in the memory in accordance with the operation condition of the secondary battery.
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公开(公告)号:US20140023920A1
公开(公告)日:2014-01-23
申请号:US13940287
申请日:2013-07-12
发明人: Shunpei YAMAZAKI , Teppei Oguni , Tamae Moriwaka , Junpei Momo , Ryota Tajima , Nobuhiro Inoue
IPC分类号: H01M4/133
摘要: A secondary battery in which graphite that is an active material can occlude and release lithium efficiently is provided. Further, a highly reliable secondary battery in which the amount of lithium inserted and extracted into/from graphite that is an active material is prevented from varying is provided. The secondary battery includes a negative electrode including a current collector and graphite provided over the current collector, and a positive electrode. The graphite includes a plurality of graphene layers. Surfaces of the plurality of graphene layers are provided substantially along the direction of an electric field generated between the positive electrode and the negative electrode.
摘要翻译: 提供了作为活性物质的石墨能够有效地吸留和释放锂的二次电池。 此外,提供了一种高可靠性的二次电池,其中防止插入和从石墨中提取的作为活性材料的锂的量变化。 二次电池包括设置在集电体上方的集电体和石墨的负极和正极。 石墨包括多个石墨烯层。 基本上沿着在正极和负极之间产生的电场的方向设置多个石墨烯层的表面。
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公开(公告)号:US11056516B2
公开(公告)日:2021-07-06
申请号:US16558396
申请日:2019-09-03
发明人: Kazutaka Kuriki , Ryota Tajima , Tamae Moriwaka
IPC分类号: H01M10/0565 , H01G11/46 , H01G11/56 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01G11/08 , H01G11/84 , H01L27/13 , H01L27/12 , H01L29/24 , H01L29/66 , H01L29/786
摘要: Disclosed is a power storage element including a positive electrode current collector layer and a negative electrode current collector layer which are arranged on the same plane and can be formed through a simple process. The power storage element further includes a positive electrode active material layer on the positive electrode current collector layer; a negative electrode active material layer on the negative electrode current collector layer; and a solid electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are formed by oxidation treatment.
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公开(公告)号:US10593683B2
公开(公告)日:2020-03-17
申请号:US16275380
申请日:2019-02-14
发明人: Tomoaki Atsumi , Shuhei Nagatsuka , Tamae Moriwaka , Yuta Endo
IPC分类号: H01L29/10 , H01L27/115 , H01L29/786 , H01L27/11551 , H01L27/1156 , H01L27/06 , G11C7/16 , G11C8/14 , G11C11/403 , G11C11/408 , G11C11/24 , H01L29/24
摘要: [Problem] To provide a semiconductor device suitable for miniaturization. To provide a highly reliable semiconductor device. To provide a semiconductor device with improved operating speed.[Solving Means] A semiconductor device including a memory cell including first to cth (c is a natural number of 2 or more) sub memory cells, wherein: the jth sub memory cell includes a first transistor, a second transistor, and a capacitor; a first semiconductor layer included in the first transistor and a second semiconductor layer included in the second transistor include an oxide semiconductor; one of terminals of the capacitor is electrically connected to a gate electrode included in the second transistor; the gate electrode included in the second transistor is electrically connected to one of a source electrode and a drain electrode which are included in the first transistor; and when j≥2, the jth sub memory cell is arranged over the j-1th sub memory cell.
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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
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.
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公开(公告)号:US20190386042A1
公开(公告)日:2019-12-19
申请号:US16558396
申请日:2019-09-03
发明人: Kazutaka KURIKI , Ryota Tajima , Tamae Moriwaka
IPC分类号: H01L27/13 , H01M10/0565 , H01G11/46 , H01G11/56 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01G11/08 , H01G11/84 , H01L27/12 , H01L29/24 , H01L29/66 , H01L29/786
摘要: Disclosed is a power storage element including a positive electrode current collector layer and a negative electrode current collector layer which are arranged on the same plane and can be formed through a simple process. The power storage element further includes a positive electrode active material layer on the positive electrode current collector layer; a negative electrode active material layer on the negative electrode current collector layer; and a solid electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are formed by oxidation treatment.
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公开(公告)号:US10461103B2
公开(公告)日:2019-10-29
申请号:US15677097
申请日:2017-08-15
发明人: Kazutaka Kuriki , Ryota Tajima , Tamae Moriwaka
IPC分类号: H01M10/0565 , H01G11/56 , H01L27/13 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01G11/46 , H01G11/08 , H01G11/84 , H01L27/12 , H01L29/24 , H01L29/66 , H01L29/786
摘要: Disclosed is a power storage element including a positive electrode current collector layer and a negative electrode current collector layer which are arranged on the same plane and can be formed through a simple process. The power storage element further includes a positive electrode active material layer on the positive electrode current collector layer; a negative electrode active material layer on the negative electrode current collector layer; and a solid electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer are formed by oxidation treatment.
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