公开(公告)号：US20230361290A1

公开(公告)日：2023-11-09

申请号：US18212440

申请日：2023-06-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takahiro KAWAKAMI ,  Teruaki OCHIAI ,  Shuhei YOSHITOMI ,  Takuya HIROHASHI ,  Mako MOTOYOSHI ,  Yohei MOMMA ,  Junya GOTO

IPC: H01M4/505 ,  H01M4/36 ,  H01M4/131 ,  H01M4/1391

CPC classification number: H01M4/505 ,  H01M4/366 ,  H01M4/131 ,  H01M4/1391 ,  H01M2220/30

Abstract: To increase capacity per weight of a power storage device, a particle includes a first region, a second region in contact with at least part of a surface of the first region and located on the outside of the first region, and a third region in contact with at least part of a surface of the second region and located on the outside of the second region. The first and the second regions contain lithium and oxygen. At least one of the first region and the second region contains manganese. At least one of the first and the second regions contains an element M. The first region contains a first crystal having a layered rock-salt structure. The second region contains a second crystal having a layered rock-salt structure. An orientation of the first crystal is different from an orientation of the second crystal.

公开(公告)号：US20200174324A1

公开(公告)日：2020-06-04

申请号：US16780980

申请日：2020-02-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shuhei YOSHITOMI ,  Daisuke KUBOTA ,  Koji KUSUNOKI

IPC: G02F1/1343 ,  G06F3/044 ,  G06F1/3234 ,  G02F1/1368

Abstract: A high-definition liquid crystal display device is provided. A liquid crystal display device with a high aperture ratio is provided. A liquid crystal display device with a high contrast ratio and display quality is provided. A liquid crystal display device capable of being driven at a low voltage is provided. The display device includes, between a pair of substrates, a pixel electrode, a first common electrode, a second common electrode, and a liquid crystal layer. The pixel electrode and the first common electrode are positioned between the liquid crystal layer and one of the substrates. The second common electrode is positioned between the liquid crystal layer and the other substrate. The same potential is supplied to the first common electrode and the second common electrode. The first common electrode includes a portion overlapping with the second common electrode between the display regions of two adjacent subpixels that exhibit different colors. At least one of the pixel electrode and the first common electrode includes a portion that does not overlap with the second common electrode in the display region of the subpixel.

公开(公告)号：US20180175386A1

公开(公告)日：2018-06-21

申请号：US15874123

申请日：2018-01-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takahiro KAWAKAMI ,  Tatsuya IKENUMA ,  Teruaki OCHIAI ,  Shuhei YOSHITOMI ,  Mako MOTOYOSHI ,  Hiroyuki MIYAKE ,  Yohei MOMMA ,  Takuya HIROHASHI ,  Satoshi SEO

IPC: H01M4/485 ,  H01M4/48 ,  G06F1/16 ,  H01M4/62 ,  H01M4/583 ,  H01M4/505 ,  G04G21/00 ,  H01M4/525 ,  H01M4/36 ,  H01M10/052

CPC classification number: H01M4/485 ,  G04C10/00 ,  G04G21/00 ,  G06F1/16 ,  G06F1/1626 ,  G06F1/163 ,  G06F1/1635 ,  G06F1/1652 ,  H01M4/366 ,  H01M4/483 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M4/623 ,  H01M4/625 ,  H01M10/052 ,  H01M2220/30

Abstract: A lithium-ion secondary battery with high capacity is provided. Alternatively, a lithium-ion secondary battery with unproved cycle characteristics is provided. To achieve this, an active material including a particle having a cleavage plane and a layer containing carbon covering at least part of the cleavage plane is provided. The particle having the cleavage plane contains lithium, manganese, nickel, and oxygen. The layer containing carbon preferably contains graphene. When a lithium-ion secondary battery is fabricated using an electrode including the particle having the cleavage plane at least part of which is covered with the layer containing carbon as an active material, the discharge capacity can be increased and the cycle characteristics can be improved.

公开(公告)号：US20160164089A1

公开(公告)日：2016-06-09

申请号：US15040051

申请日：2016-02-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takahiro KAWAKAMI ,  Shuhei YOSHITOMI ,  Teruaki OCHIAI ,  Yumiko SAITO ,  Yohei MOMMA ,  Satoshi SEO ,  Mayumi MIKAMI ,  Shunsuke ADACHI

IPC: H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/505 ,  H01B1/08 ,  H01M4/362 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122

Abstract: The amount of lithium ions that can be received and released in and from a positive electrode active material is increased, and high capacity and high energy density of a secondary battery are achieved. Provided is a lithium-manganese composite oxide represented by LixMnyMzOw, where M is a metal element other than Li and Mn, or Si or P, and y, z, and w satisfy 0≦x/(y+z) 0, z>0, 0.26≦(y+z)/w

公开(公告)号：US20160118658A1

公开(公告)日：2016-04-28

申请号：US14920650

申请日：2015-10-22

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Takahiro KAWAKAMI ,  Teruaki OCHIAI ,  Shuhei YOSHITOMI ,  Takuya HIROHASHI ,  Mako MOTOYOSHI ,  Yohei MOMMA ,  Junya GOTO

IPC: H01M4/505 ,  H01M4/36

CPC classification number: H01M4/505 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M2220/30

Abstract: To increase capacity per weight of a power storage device, a particle includes a first region, a second region in contact with at least part of a surface of the first region and located on the outside of the first region, and a third region in contact with at least part of a surface of the second region and located on the outside of the second region. The first and the second regions contain lithium and oxygen. At least one of the first region and the second region contains manganese. At least one of the first and the second regions contains an element M. The first region contains a first crystal having a layered rock-salt structure. The second region contains a second crystal having a layered rock-salt structure. An orientation of the first crystal is different from an orientation of the second crystal.

Abstract translation: 为了增加蓄电装置的重量，颗粒包括第一区域，与第一区域的表面的至少一部分接触并位于第一区域的外部的第二区域和接触的第三区域 具有第二区域的表面的至少一部分并且位于第二区域的外侧。 第一和第二区域包含锂和氧。 第一区域和第二区域中的至少一个含有锰。 第一区域和第二区域中的至少一个包含元素M.第一区域包含具有层状岩盐结构的第一晶体。 第二区域包含具有层状岩盐结构的第二晶体。 第一晶体的取向与第二晶体的取向不同。

公开(公告)号：US20240351408A1

公开(公告)日：2024-10-24

申请号：US18684258

申请日：2022-08-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Yosuke TSUKAMOTO ,  Koji KUSUNOKI ,  Shuhei YOSHITOMI ,  Akio ENDO ,  Ryota TAJIMA

IPC: B60J3/02 ,  B60K35/22 ,  H02S20/30 ,  H02S30/20

CPC classification number: B60J3/0243 ,  B60K35/22 ,  H02S20/30 ,  H02S30/20 ,  B60K2360/46 ,  B60K2360/777 ,  B60K2360/816

Abstract: A light-blocking device that includes a display device is provided. A method for unfolding a light-blocking device that includes a display device is provided. The light-blocking device is used for a vehicle. The light-blocking device includes a light-blocking portion, a storage portion, and a driving means. The light-blocking portion includes a display portion on a surface on the inside of the vehicle. The storage portion is positioned in a roof portion of the vehicle. The driving means has a first function of unfolding the light-blocking portion in a first position, a second function of unfolding the light-blocking portion in a second position, and a third function of storing the light-blocking portion in a third position inside the storage portion. The first position is a position where the light-blocking portion does not obstruct driver's forward vision. The second position is a position where the light-blocking portion covers 80% or higher of the area of a windshield of the vehicle.

公开(公告)号：US20240266594A1

公开(公告)日：2024-08-08

申请号：US18562562

申请日：2022-05-24

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shuhei YOSHITOMI ,  Kaori OGITA ,  Shotaro MURATSUBAKI ,  Atsushi KAWATSUKI ,  Mayumi MIKAMI ,  Yohei MOMMA ,  Tetsuya KAKEHATA ,  Shunpei YAMAZAKI

IPC: H01M10/0562 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/30

Abstract: Provided is a secondary battery having a favorable interface contact between an active material and an electrolyte. The secondary battery includes a positive electrode layer, a negative electrode layer, and an electrolyte layer positioned between the positive electrode layer and the negative electrode layer. The positive electrode layer contains a positive electrode active material and a first solid electrolyte, the negative electrode layer contains a negative electrode active material and a second solid electrolyte, the electrolyte layer contains a third solid electrolyte and an ionic liquid, and a space in the third solid electrolyte is impregnated with the ionic liquid. The secondary battery is bendable.

公开(公告)号：US20240063387A1

公开(公告)日：2024-02-22

申请号：US18449140

申请日：2023-08-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Tetsuya KAKEHATA ,  Shuhei YOSHITOMI ,  Yohei MOMMA ,  Atsushi KAWATSUKI ,  Mayumi MIKAMI ,  Junya MARUYAMA ,  Akio ENDO ,  Kaori OGITA

IPC: H01M4/525 ,  C01G51/00 ,  H01M50/109 ,  H01M4/62 ,  H01M4/66 ,  H01M50/417

CPC classification number: H01M4/525 ,  C01G51/42 ,  H01M50/109 ,  H01M4/625 ,  H01M4/623 ,  H01M4/661 ,  H01M50/417 ,  C01P2002/52 ,  C01P2006/40 ,  C01P2004/61 ,  C01P2004/04 ,  C01P2002/90 ,  C01P2002/77 ,  C01P2002/72

Abstract: A positive electrode active material having a high charge-discharge capacity and high safety and a secondary battery including the positive electrode active material are provided. The positive electrode active material includes lithium, a transition metal M, an additive element, and oxygen. The powder volume resistivity of the positive electrode active material is higher than or equal to 1.0×105 Ω·cm at a temperature of higher than or equal to 180° C. and lower than or equal to 200° C. and at a pressure of higher than or equal to 0.3 MPa and lower than or equal to 2 MPa. The median diameter of the positive electrode active material is preferably greater than or equal to 3 μm and less than or equal to 10 μm.

公开(公告)号：US20240030413A1

公开(公告)日：2024-01-25

申请号：US18256478

申请日：2021-11-29

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Tetsuya KAKEHATA ,  Shuhei YOSHITOMI ,  Atsushi KAWATSUKI

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/485 ,  H01M4/62 ,  H01M4/525 ,  H01M4/58 ,  H01M4/1315 ,  H01G11/46 ,  H01G11/86

CPC classification number: H01M4/366 ,  H01M4/0471 ,  H01M4/0404 ,  H01M4/485 ,  H01M4/625 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/1315 ,  H01G11/46 ,  H01G11/86 ,  H01M2004/028

Abstract: A positive electrode and a secondary battery with little deterioration due to charge and discharge are provided. A positive electrode and a secondary battery with high electrode density are provided. Alternatively, a positive electrode and a secondary battery with excellent rate characteristics are provided. The positive electrode contains a positive electrode active material and a coating material. The coating material covers at least part of a surface of the positive electrode active material, and the positive electrode active material contains lithium cobalt oxide containing magnesium, fluorine, aluminum, and nickel. The lithium cobalt oxide includes a region with the highest concentration of one or more selected from the magnesium, the fluorine, and the aluminum in a surface portion. The coating material is preferably one or more selected from glass, carbon black, graphene, and a graphene compound.

公开(公告)号：US20230341730A1

公开(公告)日：2023-10-26

申请号：US18211623

申请日：2023-06-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shuhei YOSHITOMI ,  Daisuke KUBOTA ,  Koji KUSUNOKI

IPC: G02F1/1343 ,  G06F3/044 ,  G02F1/1368 ,  G06F1/3234

CPC classification number: G02F1/134309 ,  G06F3/044 ,  G06F3/0446 ,  G02F1/1368 ,  G06F1/3265 ,  G02F2201/40 ,  Y02D10/00 ,  G02F1/134345 ,  G02F1/134372 ,  G02F1/136286

Abstract: A high-definition liquid crystal display device is provided. A liquid crystal display device with a high aperture ratio is provided. A liquid crystal display device with a high contrast ratio and display quality is provided. A liquid crystal display device capable of being driven at a low voltage is provided. The display device includes, between a pair of substrates, a pixel electrode, a first common electrode, a second common electrode, and a liquid crystal layer. The pixel electrode and the first common electrode are positioned between the liquid crystal layer and one of the substrates. The second common electrode is positioned between the liquid crystal layer and the other substrate. The same potential is supplied to the first common electrode and the second common electrode. The first common electrode includes a portion overlapping with the second common electrode between the display regions of two adjacent subpixels that exhibit different colors. At least one of the pixel electrode and the first common electrode includes a portion that does not overlap with the second common electrode in the display region of the subpixel.