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：US20230055667A1

公开(公告)日：2023-02-23

申请号：US17793194

申请日：2021-01-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yohei MOMMA ,  Hiroshi KADOMA ,  Yoshihiro KOMATSU ,  Shiori SAGA ,  Shunpei YAMAZAKI

IPC: H01M4/525 ,  C01G53/00

Abstract: A positive electrode active material with little deterioration is provided. Positive electrode active material particles with little deterioration are provided. A power storage device with little deterioration is provided. A highly safe power storage device is provided. A novel power storage device is provided. A secondary battery includes a positive electrode and a negative electrode. In the secondary battery, the positive electrode includes a positive electrode active material; the positive electrode active material includes a crystal exhibiting a layered rock-salt crystal structure; the crystal is represented by the space group R-3m; the positive electrode active material is a particle containing lithium, cobalt, titanium, magnesium, and oxygen; the concentration of the magnesium in a surface portion of the particle is higher than the concentration of the magnesium in an inner portion of the particle; and in the positive electrode active material, the concentration of the titanium in the surface portion of the particle is higher than the concentration of the titanium in the inner portion of the particle.

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：US20220123231A1

公开(公告)日：2022-04-21

申请号：US17500114

申请日：2021-10-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroshi KADOMA ,  Satoshi SEO ,  Harue OSAKA ,  Tsunenori SUZUKI

IPC: H01L51/00 ,  C07D209/80 ,  C09K11/06 ,  C07D209/86

Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. An organic compound in which a substituted or unsubstituted naphtho[2,3-c]carbazolyl group or a substituted or unsubstituted benzo[c]naphtho[2,3-g]carbazolyl group is bonded to a substituted or unsubstituted 9H-carbazolyl group or a substituted or unsubstituted anthryl group through a substituted or unsubstituted arylene group. The arylene group has 6 to 13, inclusive, carbon atoms.

公开(公告)号：US20210193930A1

公开(公告)日：2021-06-24

申请号：US17116222

申请日：2020-12-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kyoko TAKEDA ,  Harue OSAKA ,  Hiroshi KADOMA ,  Satoshi SEO ,  Tsunenori SUZUKI ,  Naoaki HASHIMOTO

IPC: H01L51/00 ,  C07D493/04 ,  C09K11/06 ,  C07D209/88 ,  C07D405/12

Abstract: A novel organic compound represented by General Formula (G1) is provided. In General Formula (G1), X1 and X2 each independently represent a secondary or tertiary alkyl group having 3 to 6 carbon atoms and having a branched carbon atom which is bonded to a phenyl group. In addition, Ar1 represents a substituted or unsubstituted condensed aromatic ring skeleton having 10 to 60 carbon atoms and composed of two or more rings or a substituted or unsubstituted condensed heteroaromatic ring skeleton having 8 to 60 carbon atoms and composed of two or more rings. Furthermore, Ar2 represents a substituted or unsubstituted aryl group having 6 to 25 carbon atoms. Moreover, n represents any of 1 to 3, and in the case where n is 2 or more, two or more groups bonded to Ar1 may be identical or different.

公开(公告)号：US20180019462A1

公开(公告)日：2018-01-18

申请号：US15646626

申请日：2017-07-11

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroshi KADOMA ,  Teppei OGUNI ,  Satoshi SEO

IPC: H01M4/1393 ,  H01M4/04 ,  H01M10/052 ,  H01M2/16 ,  H01M4/60 ,  H01M4/62 ,  H01M4/1395 ,  H01M4/02

CPC classification number: H01M4/1393 ,  C01B32/194 ,  H01M2/1686 ,  H01M4/0471 ,  H01M4/1395 ,  H01M4/60 ,  H01M4/622 ,  H01M10/052 ,  H01M10/054 ,  H01M10/0562 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/30 ,  H01M2300/0065 ,  H01M2300/0068

Abstract: A material that can be used in a wide temperature range and a manufacturing method thereof are provided. A graphene compound has a substituted or unsubstituted chain group. The chain group has one or more ester groups or carboxyl groups and contains a Si atom. The chain group is bonded to a graphene layer through the Si atom. A method for forming a graphene compound includes a step of stirring graphene oxide and a Lewis base and a step of mixing a silicon compound having one or more ester groups or carboxyl groups into the mixed solution and stirring the obtained mixed solution. The Lewis base is butylamine, pentylamine, hexylamine, diethylamine, dipropylamine, dibutylamine, triethylamine, tripropylamine, or pyridine.

公开(公告)号：US20150171333A1

公开(公告)日：2015-06-18

申请号：US14632337

申请日：2015-02-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuko Kawata ,  Hiroshi KADOMA ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H01L51/00 ,  C07D333/76

CPC classification number: H01L51/0052 ,  C07D333/76 ,  H01L51/006 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/508

Abstract: A novel compound having high triplet excitation energy and a bipolar property is provided. Specifically, a phenanthrene compound represented by General Formula (G1) is provided where R11 to R19 and R21 to R27 separately represent any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms, and Z represents a sulfur atom or an oxygen atom. The use of the phenanthrene compound as a host material of a light-emitting layer in the presence of a phosphorescent dopant allows the formation of a light-emitting element with high current efficiency.

Abstract translation: 提供具有高三重态激发能和双极特性的新型化合物。 具体地说，提供由通式（G1）表示的菲化合物，其中R11至R19和R21至R27分别表示氢，具有1至4个碳原子的烷基和取代或未取代的具有6至13个的芳基 碳原子，Ar表示取代或未取代的碳原子数6〜13的亚芳基，Z表示硫原子或氧原子。 在磷光掺杂剂的存在下使用菲化合物作为发光层的主体材料可以形成具有高电流效率的发光元件。

公开(公告)号：US20150021579A1

公开(公告)日：2015-01-22

申请号：US14504826

申请日：2014-10-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Satoshi SEO ,  Satoko SHITAGAKI ,  Nobuharu OHSAWA ,  Hideko INOUE ,  Hiroshi KADOMA ,  Harue OSAKA

IPC: H01L51/50 ,  H01L51/00

CPC classification number: H01L51/504 ,  H01L27/3209 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072 ,  H01L2251/5346 ,  H01L2251/5376 ,  H01L2251/5384

Abstract: A light-emitting element having extremely high efficiency of approximately 25% is provided. The light-emitting element includes a light-emitting layer which contains a phosphorescent guest, an n-type host, and a p-type host, where the light-emitting layer is interposed between an n-type layer including the n-type host and a p-type layer including the p-type host, and where the n-type host and the p-type host are able to form an exciplex in the light-emitting layer. The light-emitting element exhibits an extremely high emission efficiency (power efficiency of 74.3 lm/W, external quantum efficiency of 24.5%, energy efficiency of 19.3%) at a low driving voltage (2.6 V) at which luminance of 1200 cd/m2 is attainable.

Abstract translation: 提供了具有极高效率约25％的发光元件。 发光元件包括含有磷光客体，n型主体和p型主体的发光层，其中发光层插入在包括n型主体的n型层之间 以及包含p型主体的p型层，其中n型主体和p型主体能够在发光层中形成激光复合物。 在1200cd / m2的亮度的低驱动电压（2.6V）下，发光元件显示出极高的发光效率（74.3lm / W的功率效率，24.5％的外部量子效率，能量效率为19.3％） 是可以实现的

公开(公告)号：US20250011260A1

公开(公告)日：2025-01-09

申请号：US18762410

申请日：2024-07-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroki SUZUKI ,  Satoshi SEO ,  Hiroshi KADOMA ,  Tsunenori SUZUKI ,  Naoaki HASHIMOTO

IPC: C07C15/28 ,  H10K50/11 ,  H10K85/60

Abstract: A novel compound for a host material is provided. A compound for a host material that is capable of increasing the lifetime of a light-emitting device is provided. A light-emitting device with a long lifetime is provided. A material whose thermophysical properties such as a glass transition temperature are high is provided. An anthracene compound for a host material represented by General Formula (G1) below is provided. (Note that in General Formula (G1), R1 to R7 each independently represent hydrogen or an aryl group having 1 to 25 carbon atoms.)

公开(公告)号：US20230397494A1

公开(公告)日：2023-12-07

申请号：US18250572

申请日：2021-10-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroshi KADOMA ,  Nobuharu OHSAWA ,  Satoshi SEO ,  Harue OSAKA

IPC: H10K85/60 ,  C07D471/06 ,  C09K11/06

CPC classification number: H10K85/6572 ,  C07D471/06 ,  C09K11/06 ,  H10K85/6576 ,  H10K85/636 ,  H10K50/166

Abstract: A novel organic compound suitable for a host material of a light-emitting device, particularly a host material of a phosphorescent device is provided. An organic compound in which any of a carbazolyl group, a dibenzothiophenyl group, a dibenzofuranyl group, and a diphenylamino group is bonded to the 3-position of imidazophenanthridine through an arylene group, or an organic compound in which a diphenylamino group is bonded to the 3-position of triazolophenanthridine through an arylene group is provided.