公开(公告)号：US20230343947A1

公开(公告)日：2023-10-26

申请号：US18020139

申请日：2021-08-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Tetsuji ISHITANI ,  Yuji IWAKI ,  Shuhei YOSHITOMI

IPC: H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/04 ,  H01M4/131

CPC classification number: H01M4/505 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/525 ,  H01M4/625 ,  H01M2004/021

Abstract: An active material particle with little deterioration is provided. A positive electrode active material particle with little deterioration is provided. The electrode includes a first particle group, a second particle group, and a third particle group. A median diameter of the first particle group is greater than a median diameter of the third particle group, and a median diameter of the second particle group is between the median diameter of the first particle group and the median diameter of the third particle group. The electrode is formed through a first step of forming a first mixture including the first particle group, the second particle group, the third particle group, and a solvent; a second step of applying the first mixture onto a current collector; and a third step of performing heating to volatilize the solvent.

公开(公告)号：US20170269440A1

公开(公告)日：2017-09-21

申请号：US15455244

申请日：2017-03-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shuhei YOSHITOMI ,  Daisuke KUBOTA ,  Koji KUSUNOKI

IPC: G02F1/1343 ,  G02F1/1368 ,  G02F1/1362 ,  G06F1/32

CPC classification number: G02F1/134309 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134345 ,  G02F2001/134372 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/40 ,  G06F1/3265 ,  G06F3/044 ,  Y02D10/153

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：US20150155556A1

公开(公告)日：2015-06-04

申请号：US14553674

申请日：2014-11-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

IPC: H01M4/505 ,  H01M4/525

CPC classification number: H01M4/505 ,  C01G45/1228 ,  C01G53/50 ,  C01P2002/80 ,  C01P2002/85 ,  C01P2002/89 ,  C01P2004/04 ,  H01M4/366 ,  H01M4/525 ,  H01M4/5825

Abstract: To increase the amount of lithium ions that can be received in and released from a positive electrode active material to achieve high capacity and high energy density of a secondary battery. A lithium manganese oxide particle includes a first region and a second region. The valence number of manganese in the first region is lower than the valence number of manganese in the second region. The lithium manganese oxide has high structural stability and high capacity characteristics.

Abstract translation: 为了增加可以从正极活性物质接收和释放的锂离子的量，以实现二次电池的高容量和高能量密度。 锂锰氧化物颗粒包括第一区域和第二区域。 第一区域中的锰的价数低于第二区域中的锰的价数。 锂锰氧化物具有高结构稳定性和高容量特性。

公开(公告)号：US20150087091A1

公开(公告)日：2015-03-26

申请号：US14557888

申请日：2014-12-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiromichi GODO ,  Shuhei YOSHITOMI

IPC: H01L21/66 ,  H01L29/786 ,  H01L29/66

CPC classification number: H01L22/14 ,  G01R31/2625 ,  G01R31/311 ,  H01L29/66969 ,  H01L29/7869

Abstract: Provided is a test method by which a transistor whose reliability is low can be detected with low stress and high accuracy in a shorter period of time than a BT test. Provided is to detect a transistor whose reliability is high in a shorter period of time than a BT test and manufacture an electronic device with high reliability efficiently. Hysteresis characteristics revealed in the result of the Vg-Id measurement with light irradiation to the transistor correlate with the result of a BT test; whether the reliability of the transistor is Good or Not-Good can be judged. Accordingly, the test method by which a transistor whose reliability is low can be detected with low stress and high accuracy in a shorter period of time than a BT test can be provided.

Abstract translation: 提供了一种可以在比BT测试更短的时间内以低应力和高精度检测可靠性低的晶体管的测试方法。 提供了在BT测试中更短的时间内检测出可靠性高的晶体管，并有效地制造高可靠性的电子设备。 通过对晶体管的光照射的Vg-Id测量的结果中显示的滞后特性与BT测试的结果相关; 可以判断晶体管的可靠性是好还是不好。 因此，可以在比可以提供BT测试的更短的时间段内以低应力和高精度检测可靠性低的晶体管的测试方法。

公开(公告)号：US20230335782A1

公开(公告)日：2023-10-19

申请号：US18006206

申请日：2021-07-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shuhei YOSHITOMI ,  Tetsuji ISHITANI

IPC: H01M10/04

CPC classification number: H01M10/049 ,  H01M10/0409

Abstract: At least part of a fabrication process of a secondary battery is automated. A highly reliable secondary battery is provided. The secondary battery is fabricated by placing a first electrode over a first exterior body; placing a separator over the first electrode; placing a second electrode over the separator; dripping an electrolyte on at least one of the first electrode, the separator, and the second electrode; placing a resin layer over the first exterior body; impregnating the at least one of the first electrode, the separator, and the second electrode with the electrolyte; then placing a second exterior body over the first exterior body to cover the first electrode, the separator, and the second electrode; curing at least part of the resin layer by irradiation of the resin layer with ultraviolet light under reduced pressure; and sealing the first electrode, the separator, and the second electrode with the first exterior body and the second exterior body under atmospheric pressure after the ultraviolet light irradiation.

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：US20230261265A1

公开(公告)日：2023-08-17

申请号：US18004749

申请日：2021-07-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Tetsuya KAKEHATA ,  Tetsuji ISHITANI ,  Shuhei YOSHITOMI

IPC: H01M10/0585

CPC classification number: H01M10/0585

Abstract: One embodiment of the present invention achieves a fabrication method that can automate fabrication of a secondary battery. In addition, a fabrication method that can fabricate a secondary battery efficiently in a short time is achieved. Furthermore, a fabrication method that can fabricate a secondary battery with high yield is achieved. Alternatively, a method for fabricating a large secondary battery with a relatively large size is achieved. An electrolyte is dripped on one or more of a positive electrode, a separator, and a negative electrode; the one or more of the positive electrode, the separator, and the negative electrode are impregnated with the electrolyte; pressure is then reduced; and a stack of the positive electrode, the separator, and the negative electrode is sealed with an exterior film. A plurality of stacks may be arranged on an exterior film; a plurality of drops of an electrolyte may be dripped on the stacks; sealing may be performed under reduced pressure; and then the exterior film may be divided into separate secondary batteries.

公开(公告)号：US20220352510A1

公开(公告)日：2022-11-03

申请号：US17852407

申请日：2022-06-29

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

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

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：US20220149313A1

公开(公告)日：2022-05-12

申请号：US17435811

申请日：2020-03-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daiki NAKAMURA ,  Nozomu SUGISAWA ,  Shuhei YOSHITOMI ,  Kensuke YOSHIZUMI

IPC: H01L51/52 ,  G06F3/041

Abstract: A flexible display is prevented from being damaged. A display device having thickness and flexibility both is provided. The display device includes a display panel with a display element. The display panel includes a first film, a second film, and a bonding layer. The bonding layer is positioned between the first film and the second film, and has a function of attaching the first film and the second film to each other. The display element is supported by the first film. The display panel has a bending modulus of elasticity being higher than or equal to 0.01 times a tensile modules of elasticity and lower than one times the tensile modulus of elasticity.

公开(公告)号：US20170317346A1

公开(公告)日：2017-11-02

申请号：US15649179

申请日：2017-07-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tatsuya IKENUMA ,  Shuhei YOSHITOMI ,  Takahiro KAWAKAMI ,  Yumiko YONEDA ,  Yohei MOMMA

IPC: H01M4/36 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/04 ,  H01M4/505 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/366 ,  H01M4/0402 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  Y02T10/7011

Abstract: To increase the volume density or weight density of lithium ions that can be received and released in and from a positive electrode active material to achieve high capacity and high energy density of a secondary battery. A lithium manganese composite oxide represented by LixMnyMzOw that includes a region belonging to a space group C2/c and is covered with a carbon-containing layer is used as the positive electrode active material. The element M is an element other than lithium and manganese. The lithium manganese composite oxide has high structural stability and high capacity.