公开(公告)号：US20230231199A1

公开(公告)日：2023-07-20

申请号：US18001623

申请日：2021-06-30

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kaori OGITA ,  Hiroshi KADOMA ,  Fumiko TANAKA ,  Kazutaka KURIKI ,  Yumiko YONEDA ,  Shotaro MURATSUBAKI ,  Kaori FUJIE ,  Taku ICHINO

IPC: H01M10/0569 ,  H01M10/0568

CPC classification number: H01M10/0569 ,  H01M10/0568 ,  H01M2300/0034

Abstract: An object is to provide a nonaqueous solvent, a secondary battery, or a vehicle having a wide usable temperature range and high heat resistance. The nonaqueous solvent of the present invention contains an ionic liquid at greater than or equal to 50 vol % and less than or equal to 95 vol % and a fluorinated cyclic carbonate, and the ionic liquid contains an imidazolium cation. The nonaqueous solvent of the present invention has low viscosity at low temperatures and high heat resistance, thereby having a wide usable temperature range.

公开(公告)号：US20230207800A1

公开(公告)日：2023-06-29

申请号：US18083622

申请日：2022-12-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazuki TANEMURA ,  Yumiko YONEDA ,  Mayumi MIKAMI ,  Kazutaka KURIKI

IPC: H01M4/525 ,  H01M4/66 ,  H01M10/0525

CPC classification number: H01M4/525 ,  H01M4/667 ,  H01M4/661 ,  H01M10/0525 ,  H01M2004/028

Abstract: To provide a positive electrode active material film that does not have a (003) orientation and has a layered rock-salt crystal structure even though an inexpensive substrate such as a glass substrate is used, and a positive electrode including the positive electrode active material film. The positive electrode includes a substrate, a positive electrode current collector film, and the positive electrode active material film. The positive electrode current collector film has a stacked structure of a titanium film and a titanium nitride film. The titanium film has a crystal structure belonging to a space group P63/mmc and a (101) orientation, the titanium nitride film has a crystal structure belonging to a space group Fm-3m and a (311) orientation, and the positive electrode active material film has a layered rock-salt crystal structure and a (116) orientation.

公开(公告)号：US20220209214A1

公开(公告)日：2022-06-30

申请号：US17606861

申请日：2020-04-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Yumiko YONEDA ,  Shunpei YAMAZAKI

IPC: H01M4/04 ,  C23C14/04 ,  H01M10/0562 ,  H01M10/0585

Abstract: An object is to achieve a manufacturing apparatus that can fully automate the manufacturing of a solid-state secondary battery. A mask alignment chamber, a first transfer chamber connected to the mask alignment chamber, a second transfer chamber connected to the first transfer chamber, a first film formation chamber connected to the second transfer chamber, a third transfer chamber connected to the first transfer chamber, and a second film formation chamber connected to the third transfer chamber are included. The first film formation chamber has a function of forming a positive electrode active material layer or a negative electrode active material layer by a sputtering method, the second film formation chamber has a function of forming a solid electrolyte layer by co-evaporation of an organic complex of lithium and SiOx (0

公开(公告)号：US20210408516A1

公开(公告)日：2021-12-30

申请号：US17365196

申请日：2021-07-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuhiro INOUE ,  Sachiko KATANIWA ,  Kazutaka KURIKI ,  Junpei MOMO

IPC: 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 pan of the negative electrode active material. The film has an insulating property and lithium ion conductivity.

公开(公告)号：US20210280616A1

公开(公告)日：2021-09-09

申请号：US17329266

申请日：2021-05-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Tamae MORIWAKA

IPC: 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

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.

公开(公告)号：US20210055352A1

公开(公告)日：2021-02-25

申请号：US16980598

申请日：2019-03-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kei TAKAHASHI ,  Koji KUSUNOKI ,  Toshiyuki ISA ,  Akihiro CHIDA ,  Ryo YAMAUCHI ,  Kazutaka KURIKI ,  Ryota TAJIMA

IPC: G01R31/36 ,  G01R31/378 ,  G01R31/392 ,  G01R31/3842 ,  H01M10/48 ,  H01M10/0525

Abstract: A control method of a secondary battery in which malfunction is less likely to occur and abnormality detection can be performed with high accuracy is provided. A charge state estimation device of a secondary battery including a device which generates electromagnetic noise, a first detection means which measures a voltage value of a secondary battery electrically connected to the device, a second detection means which measures a current value of the secondary battery electrically connected to the device, a correction means which extracts a causal relationship between electromagnetic noise and a driving pattern from data including multiple electromagnetic noise obtained using the first detection means or the second detection means, and an arithmetic means which calculates a charge rate using a regression model based on data after data correction.

公开(公告)号：US20200153264A1

公开(公告)日：2020-05-14

申请号：US16627429

申请日：2018-07-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeshi OSADA ,  Akihiro CHIDA ,  Toshiyuki ISA ,  Kazutaka KURIKI

IPC: H02J7/00 ,  B60L50/64 ,  B60L58/10 ,  G01R31/367 ,  G01R31/389 ,  G01R31/387 ,  G06N3/04

Abstract: A power storage system having excellent characteristics is provided. A power storage system having high safety is provided. A power storage system with little degradation is provided. A storage battery having excellent characteristics is provided. A method of operating a power storage system including a storage battery, a first circuit having a function of measuring an impedance, and a neural network includes a first step of stopping charging or discharging of the storage battery, a second step of measuring an open circuit voltage of the storage battery, a third step of measuring an impedance of the storage battery, a fourth step of inputting the open circuit voltage and the impedance that are measured to the input layer, a fifth step of outputting a first signal from the output layer, a sixth step of changing a condition of charging or discharging of the storage battery in accordance with the first signal, and a seventh step of starting charging or discharging of the storage battery; the first signal corresponds to the estimated value of the discharge capacity of the storage battery.

公开(公告)号：US20190386042A1

公开(公告)日：2019-12-19

申请号：US16558396

申请日：2019-09-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazutaka KURIKI ,  Ryota Tajima ,  Tamae Moriwaka

IPC: 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

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.

公开(公告)号：US20190245195A1

公开(公告)日：2019-08-08

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

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.

公开(公告)号：US20190157262A1

公开(公告)日：2019-05-23

申请号：US16238590

申请日：2019-01-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junpei MOMO ,  Kazutaka KURIKI ,  Hiromichi GODO

IPC: H01L27/06 ,  H01L29/66 ,  H01L29/786 ,  H01G11/14

Abstract: A semiconductor device in which a circuit and a power storage element are efficiently placed is provided. The semiconductor device includes a first transistor, a second transistor, and an electric double-layer capacitor. The first transistor, the second transistor, and the electric double-layer capacitor are provided over one substrate. A band gap of a semiconductor constituting a channel region of the second transistor is wider than a band gap of a semiconductor constituting a channel region of the first transistor. The electric double-layer capacitor includes a solid electrolyte.