公开(公告)号：US11075387B2

公开(公告)日：2021-07-27

申请号：US15015374

申请日：2016-02-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota Tajima ,  Junpei Momo

IPC: H01M4/70 ,  H01M10/05 ,  H01M10/50 ,  H01M50/54 ,  H01M50/11 ,  H01M50/10 ,  H01M10/04 ,  H01G11/66 ,  H01M10/0587 ,  H01G11/72 ,  H01G11/76 ,  H01G11/26 ,  H01G11/82 ,  H01G11/56 ,  H01M10/0525 ,  H01M10/0565 ,  H01M50/116 ,  H01M50/543

Abstract: A power storage device having flexibility is provided. A power storage device of which the capacity is not likely to deteriorate even when being curved is provided. A power storage device includes a first electrode, a second electrode, and an electrolytic solution. The first electrode and the second electrode overlap with each other. The first electrode includes a first current collector and a first active material layer. The first current collector has a first surface and a second surface. The first active material layer is provided on the first surface. The first current collector has a first bent portion with the second surface inside. The second surface includes a first region and a second region. The first region overlaps with the second region. The first region is connected to the second region at a portion different from the first bent portion.

公开(公告)号：US10944281B2

公开(公告)日：2021-03-09

申请号：US15274323

申请日：2016-09-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junpei Momo ,  Hiroyuki Miyake ,  Kei Takahashi

IPC: H02J7/00 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/46 ,  H01M10/44 ,  H02J50/80 ,  H02J50/20 ,  H02J50/12 ,  H01M10/0583 ,  H01M10/0585 ,  H01M4/96 ,  H01M2/16 ,  H01M10/02 ,  H01M10/04 ,  H01M4/02 ,  H02J7/02 ,  H02J7/35

Abstract: A decrease in the capacity of a power storage device is inhibited by adjusting or reducing imbalance in the amount of inserted and extracted carrier ions between positive and negative electrodes, which is caused by decomposition of an electrolyte solution of the negative electrode. Further, the capacity of the power storage device can be restored. Furthermore, impurities in the electrolyte solution can be decomposed with the use of the third electrode. A power storage device including positive and negative electrodes, an electrolyte, and a third electrode is provided. The third electrode has an adequate electrostatic capacitance. The third electrode can include a material with a large surface area. In addition, a method for charging the power storage device including the steps of performing charging by applying a current between the positive and negative electrodes, and performing additional applying a current between the third electrode and the negative electrode is provided.

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.

公开(公告)号：US20180183037A1

公开(公告)日：2018-06-28

申请号：US15932208

申请日：2018-02-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Nobuhiro Inoue ,  Sachiko Kataniwa ,  Kazutaka Kuriki ,  Junpei Momo

IPC: H01M4/04 ,  H01M4/62 ,  H01G11/50 ,  H01G11/84 ,  H01M10/0525 ,  H01G11/28 ,  H01M4/583 ,  H01M4/133 ,  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 pan of the negative electrode active material. The film has an insulating property and lithium ion conductivity.

公开(公告)号：US09935313B2

公开(公告)日：2018-04-03

申请号：US15409566

申请日：2017-01-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takuya Miwa ,  Nobuhiro Inoue ,  Kuniharu Nomoto ,  Junpei Momo

IPC: H01M4/485 ,  H01M4/36 ,  H01M4/04 ,  H01M4/583 ,  C01B25/30 ,  C01B25/45 ,  C30B29/14 ,  H01M4/1397 ,  C30B7/10 ,  H01M4/62 ,  H01M10/0525 ,  C01B32/23 ,  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.

公开(公告)号：US09673451B2

公开(公告)日：2017-06-06

申请号：US15368993

申请日：2016-12-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomoya Futamura ,  Tamae Moriwaka ,  Takahiro Kawakami ,  Junpei Momo ,  Nobuhiro Inoue

IPC: H01M4/583 ,  H01M4/58 ,  H01M4/88 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M10/0525 ,  C30B1/00 ,  H01M4/13 ,  H01M4/136 ,  H01M4/362 ,  H01M4/5825 ,  H01M4/665 ,  H01M4/668 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

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.

公开(公告)号：US09487880B2

公开(公告)日：2016-11-08

申请号：US13680269

申请日：2012-11-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru Takahashi ,  Yumiko Saito ,  Junpei Momo ,  Tamae Moriwaka ,  Naoto Kusumoto

IPC: C25D11/00 ,  C25D9/02 ,  C25D5/54 ,  C25D13/16 ,  C25D1/18 ,  C25D7/06 ,  C25D13/04 ,  C25D5/48 ,  C25B3/04

CPC classification number: C25D11/00 ,  C25B3/04 ,  C25D1/18 ,  C25D5/48 ,  C25D7/0614 ,  C25D9/02 ,  C25D11/005 ,  C25D13/04 ,  C25D13/16 ,  Y02E60/122 ,  Y02P70/54

Abstract: To provide a flexible substrate processing apparatus which allows the stable reduction of an oxide contained in a film-like structure body formed on a flexible substrate. The apparatus has a substrate carrying-out portion where a flexible substrate on which a film-like structure body is formed is unwound; a reduction treatment portion where an oxide contained in the film-like structure body formed on the flexible substrate is electrochemically reduced; a washing portion where the flexible substrate and the film-like structure body are washed; a drying portion where the flexible substrate and the film-like structure body are dried; and a substrate carrying-in portion where the flexible substrate on which the film-like structure body is formed is taken up.

Abstract translation: 提供一种柔性基板处理装置，其能够稳定地还原形成在柔性基板上的膜状结构体中所含的氧化物。 该装置具有：其上形成有薄膜状结构体的柔性基板的基板搬出部， 减少处理部分，其中形成在柔性基板上的膜状结构体中所含的氧化物被电化学还原; 洗涤部分，其中柔性基底和膜状结构体被洗涤; 将柔性基板和膜状结构体干燥的干燥部; 以及其上形成有薄膜状结构体的柔性基板的基板搬入部。

公开(公告)号：US09275798B2

公开(公告)日：2016-03-01

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 ,  H01G11/06 ,  H01G11/24 ,  H01G11/30 ,  H01G11/50 ,  H01G11/86

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 a method for manufacturing of an electric double layer capacitor, or a lithium ion capacitor, which includes porous metal electrodes formed by removing a metal from an alloy foil, and an electrolyte provided therebetween. A surface area per volume of the porous structure is greater than or equal to 100 m2/cm3.

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或锂离子电容器的制造方法，其包括通过从合金箔中除去金属而形成的多孔金属电极，以及设置在其间的电解质。 多孔结构体积的表面积大于或等于100m 2 / cm 3。

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

CPC classification number: H01G11/42 ,  H01G11/32 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/587 ,  Y02E60/13

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。

公开(公告)号：US12034327B2

公开(公告)日：2024-07-09

申请号：US17149779

申请日：2021-01-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru Takahashi ,  Junpei Momo ,  Yutaka Shionoiri

IPC: H02J7/00 ,  H01G11/06 ,  H01G11/10 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/44

CPC classification number: H02J7/0069 ,  H01G11/06 ,  H01G11/10 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/441 ,  H02J7/0024 ,  H01M10/4207

Abstract: Deterioration of a power storage device is reduced. Switches that control the connections of a plurality of power storage devices separately are provided. The switches are controlled with a plurality of control signals, so as to switch between charge and discharge of each of the power storage devices or between serial connection and parallel connection of the plurality of power storage devices. Further, a semiconductor circuit having a function of carrying out arithmetic is provided for the power storage devices, so that a control system of the power storage devices or a power storage system is constructed.