公开(公告)号：US20230141951A1

公开(公告)日：2023-05-11

申请号：US17905093

申请日：2021-03-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroshi KADOMA ,  Kazutaka KURIKI ,  Yumiko YONEDA ,  Kaori OGITA ,  Fumiko TANAKA ,  Yohei MOMMA ,  Shunpei YAMAZAKI

IPC: H01M10/0565 ,  H01M4/38 ,  H01M4/04

CPC classification number: H01M10/0565 ,  H01M4/386 ,  H01M4/0404 ,  H01M2004/027 ,  H01M2300/0082

Abstract: Interface contact between a polymer electrolyte and an active material layer is improved. A secondary battery with improved discharge capacity is provided. The secondary battery includes a positive electrode, a negative electrode, and an electrolyte layer between the positive electrode and the negative electrode. The positive electrode includes a positive electrode active material, a first lithium-ion conductive polymer, a first lithium salt, and a conductive material over a positive electrode current collector. The electrolyte layer includes a second lithium-ion conductive polymer and a second lithium salt. The conductive material is preferably graphene. The negative electrode preferably includes a negative electrode active material, a third lithium-ion conductive polymer, a third lithium salt, and a second conductive material over a negative electrode current collector.

公开(公告)号：US20230044589A1

公开(公告)日：2023-02-09

申请号：US17767987

申请日：2020-10-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kaori OGITA ,  Hiroshi KADOMA ,  Tomoya HIROSE ,  Yumiko YONEDA ,  Yuji IWAKI ,  Tatsuyoshi TAKAHASHI ,  Shunpei YAMAZAKI

IPC: H01M4/62 ,  H01M10/0585 ,  H01M4/36 ,  H01M10/0562 ,  H01M4/525 ,  H01M4/131 ,  H01M4/66

Abstract: A secondary battery with excellent cycle performance is provided. The secondary battery is an all-solid-state battery including a positive electrode current collector layer, a base film, a positive electrode active material layer, a buffer layer, and a solid electrolyte layer. The base film contains titanium nitride. The positive electrode active material layer contains lithium cobalt oxide. The buffer layer contains titanium oxide. The solid electrolyte layer contains a titanium compound. By using titanium oxide for the buffer layer, a side reaction between the positive electrode active material layer and the solid electrolyte layer can be suppressed, and cycle performance can be improved.

公开(公告)号：US20160308136A1

公开(公告)日：2016-10-20

申请号：US15198244

申请日：2016-06-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kaori OGITA ,  Hiromi NOWATARI ,  Harue OSAKA ,  Takahiro USHIKUBO ,  Satoshi SEO ,  Takako TAKASU

IPC: H01L51/00

CPC classification number: H01L51/0052 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1092 ,  H01L51/0058 ,  H01L51/0072 ,  H01L51/0085 ,  H05B33/14

Abstract: A composite material which includes an organic compound and an inorganic compound and has a high carrier-transport property is provided. A composite material having a good property of carrier injection into an organic compound is provided. A composite material in which light absorption due to charge-transfer interaction is unlikely to occur is provided. A composite material having a high visible-light-transmitting property is provided. A composite material including a hydrocarbon compound and an inorganic compound exhibiting an electron-accepting property with respect to the hydrocarbon compound is provided. The hydrocarbon compound has a substituent bonded to a naphthalene skeleton, a phenanthrene skeleton, or a triphenylene skeleton and has a molecular weight of 350 to 2000, and the substituent has one or more rings selected from a benzene ring, a naphthalene ring, a phenanthrene ring, and a triphenylene ring.

Abstract translation: 提供了包含有机化合物和无机化合物并具有高载流子传输性能的复合材料。 提供具有良好载体注入有机化合物性质的复合材料。 提供了由于电荷转移相互作用而导致的光吸收不可能发生的复合材料。 提供具有高可见光透射特性的复合材料。 提供了包含相对于烃化合物显示电子接受性的烃化合物和无机化合物的复合材料。 烃化合物具有与萘骨架，菲骨架或三亚苯骨架结合的取代基，分子量为350〜2000，该取代基具有一个以上选自苯环，萘环，菲 环和三亚苯环。

公开(公告)号：US20240047751A1

公开(公告)日：2024-02-08

申请号：US18265913

申请日：2021-12-02

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kaori OGITA ,  Fumiko TANAKA ,  Shotaro MURATSUBAKI ,  Tetsuji ISHITANI ,  Shunpei YAMAZAKI

IPC: H01M10/0568 ,  H01M10/0525

CPC classification number: H01M10/0568 ,  H01M10/0525 ,  H01M2220/20

Abstract: A lithium-ion secondary battery with high capacity and excellent charge and discharge cycle performance is provided. A secondary battery with high capacity is provided. A secondary battery with excellent charge and discharge characteristics is provided. A secondary battery in which a reduction in capacity is inhibited even when a state being charged with a high voltage is held for a long time is provided. A secondary battery includes a positive electrode, a negative electrode, and an electrolyte, and the amount of moisture in the electrolyte is less than 1000 ppm.

公开(公告)号：US20230307634A1

公开(公告)日：2023-09-28

申请号：US18190365

申请日：2023-03-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Jo SAITO ,  Kaori OGITA ,  Yohei MOMMA ,  Kazutaka KURIKI ,  Shuhei YOSHITOMI ,  Yasuhiro JINBO ,  Tetsuya KAKEHATA ,  Shunpei YAMAZAKI

IPC: H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/131

CPC classification number: H01M4/525 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/131 ,  H01M2300/004

Abstract: A lithium ion battery having excellent charge characteristics and discharge characteristics even in a low-temperature environment is provided. The lithium ion battery includes a positive electrode active material and an electrolyte. The positive electrode active material contains cobalt, oxygen, magnesium, aluminum, and nickel. The electrolyte contains lithium hexafluorophosphate, ethylene carbonate, ethyl methyl carbonate, and dimethyl carbonate. Second discharge capacity of the lithium ion battery is higher than or equal to 70% of first discharge capacity. The first discharge capacity is obtained by performing first charge and first discharge at 20° C., and the second discharge capacity is obtained by performing second charge and second discharge at −40° C. The first discharge and the second discharge are constant current discharge with 20 mA/g per positive electrode active material weight.

公开(公告)号：US20230238583A1

公开(公告)日：2023-07-27

申请号：US17925357

申请日：2021-05-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kaori OGITA ,  Kazutaka KURIKI ,  Yumiko YONEDA ,  Hiroshi KADOMA ,  Kunihiko SUZUKI ,  Yuji IWAKI ,  Shunpei YAMAZAKI

IPC: H01M10/0569 ,  H01M4/583

CPC classification number: H01M10/0569 ,  H01M4/583 ,  H01M2004/028

Abstract: According to one embodiment of the present invention, a secondary battery that can be used at a wide range of temperatures and is less likely to be influenced by an environmental temperature is provided. Furthermore, a secondary battery with high safety is provided. An electrolyte obtained by mixing an acyclic ester having high temperature characteristics with a fluorinated carbonic ester at 5 vol. % or higher, preferably 20 vol. % or higher, is used for the purpose of reducing interface resistance between an electrode and an electrolyte, whereby a secondary battery capable of operating at a wide range of temperatures, specifically, at temperatures higher than or equal to −40° C. and lower than or equal to 150° C., preferably higher than or equal to −40° C. and lower than or equal to 85° C. can be achieved.

公开(公告)号：US20230232706A1

公开(公告)日：2023-07-20

申请号：US18099572

申请日：2023-01-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroshi KADOMA ,  Kaori OGITA ,  Tsunenori SUZUKI ,  Satoshi SEO

IPC: H10K85/60 ,  C07D209/86 ,  C09K11/06

CPC classification number: H10K85/622 ,  C07D209/86 ,  C09K11/06 ,  H10K85/6572 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  H10K50/11

Abstract: Provided is a light-emitting element with high emission efficiency including a fluorescent material as a light-emitting substance. In a light-emitting element including a pair of electrodes and an EL layer between the pair of electrodes, a delayed fluorescence component due to triplet-triplet annihilation accounts for 20% or more of light emitted from the EL layer, and the light has at least one emission spectrum peak in the blue wavelength range. The EL layer includes an organic compound in which an energy difference between the lowest singlet excited energy level and the lowest triplet excited energy level is 0.5 eV or more. The EL layer includes a benzo[a]anthracene compound.

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：US20220173429A1

公开(公告)日：2022-06-02

申请号：US17530763

申请日：2021-11-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masayuki KIMURA ,  Kaori OGITA ,  Fumiko TANAKA ,  Shotaro MURATSUBAKI

IPC: H01M10/0525 ,  H01M4/525 ,  H01M10/0569 ,  H01M10/0568

Abstract: A storage battery that is less likely to be affected by the ambient temperature is provided. A storage battery that can be charged and discharged at low temperatures is provided. In the storage battery, a secondary battery that can be charged and discharged at low temperatures is provided adjacent to a general secondary battery. The storage battery having such a structure can use, as an internal heat source in a low temperature environment, heat generated by charging and discharging of the secondary battery that can be charged and discharged at low temperatures. Specifically, the storage battery includes a first lithium-ion secondary battery and a second lithium-ion secondary battery adjacent to each other. The first lithium-ion secondary battery contains at least one of an ionic liquid, a molecular crystalline electrolyte, a semi-solid-state electrolyte, an all-solid-state electrolyte, and lithium titanate. The second lithium-ion secondary battery contains an organic electrolyte solution.

公开(公告)号：US20220106286A1

公开(公告)日：2022-04-07

申请号：US17358184

申请日：2021-06-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kaori OGITA ,  Tsunenori SUZUKI ,  Satoshi SEO

IPC: C07D333/76 ,  C07D307/91 ,  C09K11/06 ,  H01L51/00 ,  H05B33/14 ,  H05B33/28

Abstract: Provided is a novel aromatic amine derivative represented by General Formula (G1) below. (In the formula, A represents oxygen or sulfur, and R1 to R7 individually represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, α1 and α2 individually represent a substituted or unsubstituted phenylene group. Further, Ar1 represents a substituted or unsubstituted condensed aromatic hydrocarbon having 14 to 18 carbon atoms included in a ring. Further, Ar2 represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms included in a ring. Further, j and n are individually 0 or 1, and p is 1 or 2.)