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81.发明授权公开(公告)号：US10535899B2
公开(公告)日：2020-01-14
申请号：US15371820
申请日：2016-12-07
Applicant: Semiconductor Energy Laboratory Co., LTD.
Inventor： Kazuhei Narita , Ryota Tajima , Teppei Oguni
IPC: H01M10/0569 , G04G19/00 , H01G11/28 , H01G11/32 , H01G11/52 , H01G11/60 , H01G11/62 , H01G11/86 , H01M2/16 , H01M4/525 , H01M4/587 , H01M4/66 , H01M10/0525 , H01M10/0568 , H01G11/84 , H01M4/36
Abstract: To provide a power storage device whose charge and discharge characteristics are unlikely to be degraded by heat treatment. To provide a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolytic solution, and an exterior body. The separator is located between the positive electrode and the negative electrode. The separator contains polyphenylene sulfide or solvent-spun regenerated cellulosic fiber. The electrolytic solution contains a solute and two or more kinds of solvents. The solute contains LiBETA. One of the solvents is propylene carbonate.
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公开(公告)号：US10388467B2
公开(公告)日：2019-08-20
申请号：US14069408
申请日：2013-11-01
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazutaka Kuriki , Ryota Tajima , Nobuhiro Inoue , Junpei Momo
IPC: H01M4/36 , H01G11/42 , H01M4/1393 , H01G11/32 , H01M4/587
Abstract: To improve the long-term cycle performance of a lithium-ion battery or a lithium-ion capacitor by minimizing the decomposition reaction of an electrolytic solution and the like as a side reaction of charge and discharge in the repeated charge and discharge cycles of the lithium-ion battery or the lithium-ion capacitor. A current collector and an active material layer over the current collector are included in an electrode for a power storage device. The active material layer includes a plurality of active material particles and silicon oxide. The surface of one of the active material particles has a region that is in contact with one of the other active material particles. The surface of the active material particle except the region is partly or entirely covered with the silicon oxide.
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公开(公告)号：US10219395B2
公开(公告)日：2019-02-26
申请号：US14555644
申请日：2014-11-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Ryota Tajima , Yuugo Goto , Yumiko Yoneda , Junya Goto , Takuya Miwa
IPC: H01M10/058 , H05K5/00 , H01M2/02 , H01M2/16 , H01M2/18 , H01M10/04 , H01M2/06 , H01M2/26 , H01M4/58 , H01M10/052 , H01M10/0585
Abstract: To provide a power storage unit having a structure which is unlikely to break down by change in shape, such as bending. An electrode plate is covered with a sheet of an insulator which is folded in two. The sheet is preferably processed into a bag-like shape or an envelope-like shape by bonding overlapping portions of the sheet in the periphery of the electrode plate. The electrode plate and the sheet are fixed to an exterior body. In the case where the shape of the exterior body is changed by bending or the like, the electrode plate and the sheet can slide together in the exterior body. Thus, stress on the electrode plate due to bending can be relieved.
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84.发明授权公开(公告)号：US09941506B2
公开(公告)日：2018-04-10
申请号：US14617472
申请日：2015-02-09
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Masaaki Hiroki , Ryota Tajima
CPC classification number: H01M4/02 , H01M4/0404 , H01M4/139 , H01M2004/021 , H01M2220/30
Abstract: Part of an electrode, specifically a current collector and an active material layer, for a secondary battery is subjected to cutting processing to have a complex shape. For example, a stack of the first current collector and the first active material layer has a first slit and a second slit. The first slit extends from a first edge of the stack. The second slit extends from a second edge of the stack, is the slit closest to an electrode tab, and is not parallel or vertical to the longest edge of the current collector.
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公开(公告)号：US09843073B2
公开(公告)日：2017-12-12
申请号：US14854349
申请日：2015-09-15
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Yumiko Yoneda , Masaki Yamakaji , Ryota Tajima , Masaaki Hiroki
IPC: H01M10/0565 , H01M2/02 , H01M4/02 , H01M4/13 , H01M10/04 , H01M10/052 , H01M10/0585
CPC classification number: H01M10/0565 , H01M2/0275 , H01M4/02 , H01M4/13 , H01M10/0436 , H01M10/052 , H01M10/0585 , H01M2300/0085 , Y02T10/7011
Abstract: A gel electrolyte and a separator are provided between the positive electrode current collector and the negative electrode current collector. The plurality of positive electrode current collectors and the plurality of negative electrode current collectors are stacked such that surfaces of negative electrodes with which active material layers are not coated or surfaces of positive electrodes with which active material layers are not coated are in contact with each other.
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Patent Agency Ranking
86.发明授权公开(公告)号：US09806334B2
公开(公告)日：2017-10-31
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.
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公开(公告)号：US09748287B2
公开(公告)日：2017-08-29
申请号：US15364591
申请日：2016-11-30
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kazutaka Kuriki , Ryota Tajima , Tamae Moriwaka
IPC: H01L27/13 , H01M10/0562 , H01M10/0565 , H01M10/052 , H01M10/0585 , H01G11/46 , H01G11/56 , H01G11/08 , H01G11/84 , H01L27/12 , H01L29/24 , H01L29/66 , H01L29/786
CPC classification number: H01L27/13 , H01G11/08 , H01G11/46 , H01G11/56 , H01G11/84 , H01L27/1225 , H01L27/124 , H01L27/1248 , H01L27/1255 , H01L27/1259 , H01L29/24 , H01L29/66969 , H01L29/7869 , H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/0585 , H01M2300/0065 , H01M2300/0071 , H01M2300/0082 , Y02E60/122 , Y02E60/13 , Y02P70/54 , Y10T29/49115
Abstract: 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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88.发明授权公开(公告)号：US09070950B2
公开(公告)日：2015-06-30
申请号：US13797104
申请日：2013-03-12
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kazutaka Kuriki , Ryota Tajima , Tamae Morikawa
IPC: H01M10/0565 , H01M10/052 , H01M10/0562 , H01M10/0585 , H01G11/46 , H01G11/56
CPC classification number: H01L27/13 , H01G11/08 , H01G11/46 , H01G11/56 , H01G11/84 , H01L27/1225 , H01L27/124 , H01L27/1248 , H01L27/1255 , H01L27/1259 , H01L29/24 , H01L29/66969 , H01L29/7869 , H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/0585 , H01M2300/0065 , H01M2300/0071 , H01M2300/0082 , Y02E60/122 , Y02E60/13 , Y02P70/54 , Y10T29/49115
Abstract: 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.
Abstract translation: 公开了一种蓄电元件，其包括正极集电体层和负极集电体层，其被布置在同一平面上并且可以通过简单的工艺形成。 蓄电元件还包括在正极集电体层上的正极活性物质层; 负极集电体层上的负极活性物质层; 以及至少与正极活性物质层和负极活性物质层接触的固体电解质层。 通过氧化处理形成正极活性物质层和负极活性物质层。
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89.发明申请ELECTRODE FOR POWER STORAGE DEVICE, POWER STORAGE DEVICE, AND MANUFACTURING METHOD OF ELECTRODE FOR POWER STORAGE DEVICE 审中-公开蓄电装置用电极，蓄电装置及蓄电装置用电极的制造方法公开(公告)号：US20140127567A1
公开(公告)日：2014-05-08
申请号：US14069408
申请日：2013-11-01
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazutaka KURIKI , Ryota Tajima , Nobuhiro Inoue , Junpei Momo
IPC: H01G11/42 , H01M4/1393 , H01G9/00 , H01M4/36
Abstract: To improve the long-term cycle performance of a lithium-ion battery or a lithium-ion capacitor by minimizing the decomposition reaction of an electrolytic solution and the like as a side reaction of charge and discharge in the repeated charge and discharge cycles of the lithium-ion battery or the lithium-ion capacitor. A current collector and an active material layer over the current collector are included in an electrode for a power storage device. The active material layer includes a plurality of active material particles and silicon oxide. The surface of one of the active material particles has a region that is in contact with one of the other active material particles. The surface of the active material particle except the region is partly or entirely covered with the silicon oxide.
Abstract translation: 为了通过最小化电解液等的分解反应来提高锂离子电池或锂离子电容器的长期循环性能，作为在锂的重复充放电循环中的充放电的副反应 锂电池或锂离子电容器。 在集电器上方的集电体和活性物质层包括在用于蓄电装置的电极中。 活性物质层包括多个活性物质粒子和氧化硅。 活性物质粒子之一的表面具有与其它活性物质粒子接触的区域。 除了该区域之外的活性材料颗粒的表面被氧化硅部分或全部覆盖。
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公开(公告)号：US20130252064A1
公开(公告)日：2013-09-26
申请号：US13797104
申请日：2013-03-12
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Kazutaka Kuriki , Ryota Tajima , Tamae Morikawa
IPC: H01M10/0565
CPC classification number: H01L27/13 , H01G11/08 , H01G11/46 , H01G11/56 , H01G11/84 , H01L27/1225 , H01L27/124 , H01L27/1248 , H01L27/1255 , H01L27/1259 , H01L29/24 , H01L29/66969 , H01L29/7869 , H01M10/052 , H01M10/0562 , H01M10/0565 , H01M10/0585 , H01M2300/0065 , H01M2300/0071 , H01M2300/0082 , Y02E60/122 , Y02E60/13 , Y02P70/54 , Y10T29/49115
Abstract: 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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