公开(公告)号：US20210188068A1

公开(公告)日：2021-06-24

申请号：US16071169

申请日：2017-01-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kensuke YOSHIZUMI ,  Ryota TAJIMA

IPC: B60K1/04 ,  B60K6/28 ,  B60L53/60 ,  B60K1/02 ,  B60K6/26 ,  H02J7/00 ,  H01M50/213 ,  H01M50/249 ,  H01M10/42

Abstract: Space-saving in an automobile or the like provided with a battery is achieved. Design flexibility of an automobile or the like can be improved. An electric power control method or an electric power control system capable of utilizing electric power efficiently is provided. It is an electric power control system of an automobile including a car body, a first battery, a second battery, and a control unit. The control unit obtains states of charge of the first battery and the second battery, determines whether or not a difference between remaining capacities of the first battery and the second battery exceeds a predetermined value, and controls transmission of electric power between the first battery and the second battery, in the case where the difference in the remaining capacities exceeds the predetermined value, to be made such that the remaining capacities are close to each other.

公开(公告)号：US20210175573A1

公开(公告)日：2021-06-10

申请号：US17179979

申请日：2021-02-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryota TAJIMA ,  Kazuhei NARITA ,  Kensuke YOSHIZUMI

IPC: H01M50/209 ,  H01M50/543 ,  H01M50/50 ,  H01M50/116 ,  H01M50/531

Abstract: A battery module with high impact resistance is provided. A battery module using an elastic body such as rubber for its exterior body covering a battery is provided. A bendable battery module is provided. As the exterior body covering a battery, an elastic body such as rubber is used, and the exterior body is molded in two steps. First, a first portion provided with a depression in which a battery is stored is molded using a first mold. Next, a battery is inserted into the first portion. Subsequently, second molding is performed using a second mold so as to fill an opening of the depression in the first portion, so that a second portion is formed. The second portion serves as a cover for closing the opening of the depression in the first portion. The second portion is formed in contact with part of the electrodes in the battery and part of an end portion of the second exterior body in the battery.

公开(公告)号：US20200343750A1

公开(公告)日：2020-10-29

申请号：US16926891

申请日：2020-07-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA ,  Kensuke YOSHIZUMI

IPC: H02J7/00 ,  H01M2/10 ,  G04G17/06 ,  G04B37/14 ,  A44C5/00 ,  A44C5/14 ,  G04G19/00 ,  H01M2/20

Abstract: A device capable of being used for a long time is achieved. A power supply, a connection method of a power supply, or a connecting member, for easy attachment and detachment and non-detachment when in use, is provided. A power supply, a connection method of a power supply , or a connecting member for easy replacement is provided. A highly designed power supply is provided. Power from a battery is supplied to an electronic device through a connecting member including a pipe, a spring, and a pair of pivots. The pair of pivots are electrically insulated from each other, and electrically connected to any one of a pair of electrodes of the battery. The electronic device into which the pair of pivots are inserted includes a pair of bearings capable of receiving power.

公开(公告)号：US20200287414A1

公开(公告)日：2020-09-10

申请号：US16753872

申请日：2018-10-24

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Koji KUSUNOKI ,  Toshiyuki ISA ,  Akihiro CHIDA ,  Kouhei TOYOTAKA ,  Ryota TAJIMA

IPC: H02J50/10 ,  H02J50/40 ,  H02J7/04

Abstract: Deterioration of a storage battery included in an electronic device is reduced. Power consumption of an electronic device is reduced. A power feeding device having excellent performance is provided. The power feeding device includes a power feeding coil, a control circuit, and a neural network and has a function of charging a storage battery with a wireless signal supplied by the power feeding coil. The control circuit has a function of estimating a remaining capacity value of the storage battery, the control circuit has a function of supplying the estimated remaining capacity value to the neural network, the neural network outputs a value corresponding to the supplied remaining capacity value to the control circuit, the control circuit determines a charge condition for the storage battery on the basis of the value output by the neural network, and the power feeding device has a function of charging the storage batten under the determined charge condition.

公开(公告)号：US20200220150A1

公开(公告)日：2020-07-09

申请号：US16822401

申请日：2020-03-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masaaki HIROKI ,  Ryota TAJIMA

IPC: H01M4/02 ,  H01M4/04 ,  H01M4/139

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. Each of the first slit and the second slit passing across the first current collector and the first active material layer and extending from an edge of the first current collector. Another stack of the second current collector and the second active material layer has a third slit and a fourth slit. Each of the third slit and the fourth slit passing across the second current collector and the second active material layer and extending from an edge of the second current collector.

公开(公告)号：US20180019466A1

公开(公告)日：2018-01-18

申请号：US15713732

申请日：2017-09-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Teppei OGUNI ,  Ryota TAJIMA

IPC: H01M4/36 ,  C01B33/027 ,  C01B33/113 ,  H01M4/04 ,  H01M4/38 ,  H01M10/0525

CPC classification number: H01M4/366 ,  C01B33/027 ,  C01B33/113 ,  H01M4/0421 ,  H01M4/386 ,  H01M10/0525

Abstract: To provide a lithium-ion secondary battery which has high charge and discharge capacity, is capable of being charged and discharged at high rate and has good cycle characteristics. A negative electrode includes a current collector and a negative electrode active material layer. The current collector includes a plurality of protrusion portions extending in the direction substantially perpendicular to the current collector and a base portion connected to the plurality of protrusion portions. The protrusion portions and the base portion are formed using the same material containing titanium. At least side surfaces of the protrusion portions are covered with the negative electrode active material layer. In the negative electrode active material layer, silicon layers and silicon oxide layers are alternately stacked between a plane where the protrusion portions are in contact with the negative electrode active material layer and a surface of the negative electrode active material layer.

公开(公告)号：US20170301946A1

公开(公告)日：2017-10-19

申请号：US15642386

申请日：2017-07-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru TAKAHASHI ,  Ryota TAJIMA

IPC: H01M10/04

CPC classification number: H01M10/0436 ,  H01M2010/0495 ,  H01M2300/0082 ,  Y10T29/49108

Abstract: To provide a flexible, highly reliable, and sheet-like power storage device. The power storage device including a flexible substrate; a positive electrode lead and a negative electrode lead over the flexible substrate; and a plurality of power storage elements over the flexible substrate. The plurality of power storage elements each includes a stack body including a sheet-like positive electrode; a sheet-like negative electrode; and an electrolyte therebetween in an exterior body. An edge portion of the sheet-like positive electrode which extends to the outside of the exterior body is electrically connected to the positive electrode lead through a positive electrode tab provided for the exterior body. An edge portion of the sheet-like negative electrode which extends to the outside of the exterior body is electrically connected to the negative electrode lead through a negative electrode tab provided for the exterior body.

公开(公告)号：US20170279111A1

公开(公告)日：2017-09-28

申请号：US15618460

申请日：2017-06-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuhiro INOUE ,  Kai KIMURA ,  Sachiko KATANIWA ,  Ryota TAJIMA

IPC: H01M4/131 ,  H01G11/06 ,  H01G11/28 ,  H01G11/46 ,  H01G11/50 ,  H01G11/58 ,  H01G11/66 ,  H01G11/68 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/485 ,  H01M4/62 ,  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.

公开(公告)号：US20170222193A1

公开(公告)日：2017-08-03

申请号：US15492015

申请日：2017-04-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA ,  Minoru TAKAHASHI ,  Junya GOTO ,  Takuya MIWA

IPC: H01M2/02 ,  H01M10/0585 ,  H01M10/0525

CPC classification number: H01M2/0275 ,  H01M2/021 ,  H01M2/0277 ,  H01M2/18 ,  H01M2/26 ,  H01M4/13 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/0585 ,  H01M2220/30

Abstract: In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery that is durable even when force is externally applied thereto is provided. A region that is easily partly bent and a region that is not easily partly bent owing to a protective material provided in the region are intentionally formed to obtain the durable secondary battery.

公开(公告)号：US20170117511A1

公开(公告)日：2017-04-27

申请号：US15296081

申请日：2016-10-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru TAKAHASHI ,  Ryota TAJIMA

IPC: H01M2/02 ,  H01M10/0585 ,  H01M10/0525

CPC classification number: H01M2/0275 ,  H01M2/0207 ,  H01M2/021 ,  H01M2/0267 ,  H01M2/0287 ,  H01M10/0413 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2220/10 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02P70/54

Abstract: A battery capable of changing its form safely is provided. A bendable battery having a larger thickness is provided. A battery with increased capacity is provided. For an exterior body of the battery, a film in the shape of a periodic wave in one direction is used. A space is provided in an area surrounded by the exterior body and between an end portion of the electrode stack that is not fixed and an interior wall of the exterior body. Furthermore, the phases of waves of a pair of portions of the exterior body between which the electrode stack is located are different from each other. In particular, the phases are different from each other by 180 degrees so that wave crest lines overlap with each other and wave trough lines overlap with each other.