公开(公告)号：US11056678B2

公开(公告)日：2021-07-06

申请号：US16384086

申请日：2019-04-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

IPC: H01M4/02 ,  H01M4/04 ,  H01G11/28 ,  H01M4/62 ,  H01G11/50 ,  H01G11/84 ,  H01M4/133 ,  H01M4/583 ,  H01M10/0525

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.

公开(公告)号：US10529990B2

公开(公告)日：2020-01-07

申请号：US15668743

申请日：2017-08-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kai Kimura ,  Kazutaka Kuriki ,  Teppei Oguni ,  Aya Uchida

IPC: H01M4/13 ,  H01M4/62 ,  H01G11/28 ,  H01G11/24 ,  H01G11/26 ,  H01G11/38 ,  H01M4/133 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/44 ,  H01M4/02 ,  H01M10/42

Abstract: A power storage device with high capacity or high energy density is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. An electrode includes an active material, a first binder, and a second binder. The specific surface area of the active material is S [m2/g]. The weight of the active material, the weight of the first binder, and the weight of the second binder are a, b, and c, respectively. The solution of {(b+c)/(a+b+c)}×100÷S is 0.3 or more. The electrode includes a first film in contact with the active material. The first film preferably includes a region in contact with the active material. The first film preferably includes a region with a thickness of 2 nm or more and 20 nm or less. The first film contains a water-soluble polymer.

公开(公告)号：US09646771B2

公开(公告)日：2017-05-09

申请号：US13797023

申请日：2013-03-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazutaka Kuriki ,  Ryota Tajima ,  Tamae Morikawa ,  Junpei Momo

IPC: H01G9/025 ,  H01G9/15 ,  H01G9/28 ,  H01G11/06 ,  H01G11/08 ,  H01G11/28 ,  H01G11/50 ,  H01G11/56 ,  H01M4/64 ,  H01M6/40 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  H01L49/02

CPC classification number: H01G9/28 ,  H01G9/025 ,  H01G9/15 ,  H01G11/06 ,  H01G11/08 ,  H01G11/28 ,  H01G11/50 ,  H01G11/56 ,  H01L28/40 ,  H01M4/64 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0585 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7011 ,  Y02T10/7022

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. The power storage element further includes a positive electrode active material layer over the positive electrode current collector layer and a negative electrode active material layer over the negative electrode current collector layer. An electrolyte layer in contact with at least the positive electrode active material layer and the negative electrode active material layer is provided. The electrolyte layer may be a solid electrolyte layer.

公开(公告)号：US09577268B2

公开(公告)日：2017-02-21

申请号：US14886185

申请日：2015-10-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka Kuriki ,  Teppei Oguni

IPC: H01M4/70 ,  H01M4/134 ,  H01M4/64 ,  H01M4/04 ,  H01M4/66 ,  H01G11/66 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/052 ,  H01M10/058

CPC classification number: H01M4/70 ,  H01G11/66 ,  H01M4/04 ,  H01M4/134 ,  H01M4/64 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2220/30 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y10T29/49108

Abstract: A power storage device is reduced in weight. A metal sheet serving as a negative electrode current collector is separated and another negative electrode current collector is formed. For example, through the step of forming silicon serving as a negative electrode active material layer over a titanium sheet and then performing heating, the titanium sheet can be separated. Then, another negative electrode current collector with a thickness of more than or equal to 10 nm and less than or equal to 1 μm is formed. Thus, light weight of the power storage device can be achieved.

Abstract translation: 蓄电装置重量减轻。 分离用作负极集电体的金属片，形成另一负极集电体。 例如，通过在钛板上形成作为负极活性物质层的硅，然后进行加热的步骤，可以分离钛片。 然后，形成厚度大于等于10nm且小于等于1μm的另一负极集电体。 因此，可以实现蓄电装置的轻量化。

公开(公告)号：US09384904B2

公开(公告)日：2016-07-05

申请号：US13792598

申请日：2013-03-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

IPC: H01M4/02 ,  H01G11/28 ,  H01M4/62 ,  H01G11/50

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.

Abstract translation: 目的是抑制锂离子电池或锂离子电容器中的负极处的电解质溶液等的电化学分解， 因此，不可逆容量降低，循环性能提高，或者工作温度范围延长。 一种蓄电装置用负极，其具备负极集电体和负极活性物质层，该负极活性物质层包含负极活性物质的多个粒子，负极活性物质的负极 电极活性物质。 该膜具有绝缘性和锂离子电导率。

公开(公告)号：US09196906B2

公开(公告)日：2015-11-24

申请号：US13792612

申请日：2013-03-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka Kuriki ,  Teppei Oguni

IPC: H01M4/04 ,  H01M10/04 ,  H01M4/64 ,  H01M4/134 ,  H01M4/66 ,  H01M4/70 ,  H01G11/66 ,  H01M10/052 ,  H01M10/058

CPC classification number: H01M4/70 ,  H01G11/66 ,  H01M4/04 ,  H01M4/134 ,  H01M4/64 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/0587 ,  H01M2220/30 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y10T29/49108

Abstract: A power storage device is reduced in weight. A metal sheet serving as a negative electrode current collector is separated and another negative electrode current collector is formed. For example, through the step of forming silicon serving as a negative electrode active material layer over a titanium sheet and then performing heating, the titanium sheet can be separated. Then, another negative electrode current collector with a thickness of more than or equal to 10 nm and less than or equal to 1 μm is formed. Thus, light weight of the power storage device can be achieved.

Abstract translation: 蓄电装置重量减轻。 分离用作负极集电体的金属片，形成另一负极集电体。 例如，通过在钛板上形成作为负极活性物质层的硅，然后进行加热的步骤，可以分离钛片。 然后，形成厚度大于等于10nm且小于等于1μm的另一负极集电体。 因此，可以实现蓄电装置的轻量化。

公开(公告)号：US20140087251A1

公开(公告)日：2014-03-27

申请号：US14029853

申请日：2013-09-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru TAKAHASHI ,  Ryota Tajima ,  Kazutaka Kuriki

IPC: H01M4/62

CPC classification number: H01M4/628 ,  H01M4/366 ,  H01M4/62 ,  H01M10/052

Abstract: Irreversible capacity which causes a decrease in the initial capacity of a power storage device is reduced and the electrochemical decomposition of an electrolytic solution is suppressed. The decomposition reaction of an electrolytic solution as a side reaction of a power storage device is reduced or suppressed to improve the cycle performance of the power storage device. An electrode material for a power storage device includes active material particles and coating films covering part of surfaces of the active material particles. Carrier ions used for the power storage device can pass through the coating film. The product of the electric resistivity and the thickness of the coating film at 25° C. is greater than or equal to 20 Ωm·m.

Abstract translation: 导致蓄电装置的初始容量降低的不可逆容量降低，电解液的电化学分解受到抑制。 作为蓄电装置的副反应的电解液的分解反应减少或抑制，以提高蓄电装置的循环性能。 用于蓄电装置的电极材料包括活性材料颗粒和覆盖活性材料颗粒表面的一部分的涂膜。 用于蓄电装置的载体离子可以通过涂膜。 25℃时的电阻率和涂膜厚度的乘积大于等于20Ω·m·m。

公开(公告)号：US20130266858A1

公开(公告)日：2013-10-10

申请号：US13792598

申请日：2013-03-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO. LTD.

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

IPC: H01G11/28 ,  H01M4/62

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.

Abstract translation: 目的是抑制锂离子电池或锂离子电容器中的负极处的电解质溶液等的电化学分解， 因此，不可逆容量降低，循环性能提高，或者工作温度范围延长。 一种蓄电装置用负极，其具备负极集电体和负极活性物质层，该负极活性物质层包含负极活性物质的多个粒子，负极活性物质的负极 电极活性物质。 该膜具有绝缘性和锂离子电导率。

公开(公告)号：US12218337B2

公开(公告)日：2025-02-04

申请号：US17350248

申请日：2021-06-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tatsuya Ikenuma ,  Kazutaka Kuriki

IPC: H01M4/13 ,  H01M4/04 ,  H01M4/139 ,  H01M4/36 ,  H01M4/62 ,  H01M10/42 ,  H01M10/052

Abstract: To provide a highly reliable power storage device. To provide a long-life power storage device. To provide a power storage device electrode having high adhesion with a current collector. To reduce or inhibit electrochemical decomposition of an electrolytic solution or the like on a surface of an electrode. The power storage device electrode includes a current collector and a second electrode layer provided over the current collector and including a second binder and an active material. A first electrode layer including a first binder and conductive particles is provided between the current collector and the second electrode layer. At least part of a surface of the active material is provided with a coating film, and the coating film is porous.

公开(公告)号：US12142726B2

公开(公告)日：2024-11-12

申请号：US17438615

申请日：2020-03-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Kazutaka Kuriki ,  Ryota Tajima ,  Yumiko Yoneda

IPC: H01M10/0562 ,  H01M4/04 ,  H01M4/38 ,  H01M10/058 ,  H01M4/02

Abstract: An all-solid-state secondary battery having a higher level of safety than a conventional lithium-ion secondary battery using an electrolyte solution, specifically, a thin-film-type solid-state secondary battery, and a manufacturing method thereof are provided. As a solid electrolyte, a mixed material obtained by co-evaporation of SiO and an organic complex of lithium is used. That is, a solid electrolyte layer formed using a mixed material of an inorganic material and an organic material is used in a solid-state secondary battery. The ratio of oxygen to silicon in the solid electrolyte layer is higher than 1 and lower than 2.