公开(公告)号：US20170309732A1

公开(公告)日：2017-10-26

申请号：US15492253

申请日：2017-04-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Kazutaka KURIKI ,  Yuji EGI ,  Hiromi SAWAI ,  Yusuke NONAKA ,  Noritaka ISHIHARA ,  Daisuke MATSUBAYASHI

IPC: H01L29/66 ,  H01L21/02 ,  H01L29/786

CPC classification number: H01L29/66969 ,  H01L21/02178 ,  H01L21/02266 ,  H01L21/0228 ,  H01L21/02337 ,  H01L21/0234 ,  H01L21/02565 ,  H01L27/1225 ,  H01L27/1259 ,  H01L27/1262 ,  H01L29/78648 ,  H01L29/7869 ,  H01L29/78693 ,  H01L29/78696

Abstract: Provided is a semiconductor device having favorable reliability. A manufacturing method of a semiconductor device comprising the steps of: forming a first oxide semiconductor having an island shape; forming a first conductor and a second conductor over the first oxide semiconductor; forming an oxide semiconductor film over the first oxide semiconductor, the first conductor, and the second conductor; forming a first insulating film over the oxide semiconductor film; forming a conductive film over the first insulating film; removing part of the first insulating film and part of the conductive film to form a first insulator and a third conductor; forming a second insulating film covering the first insulator and the third conductor; removing part of the oxide semiconductor film and part of the second insulating film to form a second oxide semiconductor and a second insulator and to expose a side surface of the first oxide semiconductor; forming a third insulator in contact with the side surface of the first oxide semiconductor and with a side surface of the second oxide semiconductor; forming a fourth insulator in contact with the third insulator; and performing a microwave-excited plasma treatment to the third insulator and the fourth insulator.

公开(公告)号：US20170077151A1

公开(公告)日：2017-03-16

申请号：US15364591

申请日：2016-11-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Tamae MORIWAKA

IPC: H01L27/13 ,  H01M10/0565 ,  H01L29/24 ,  H01L29/786 ,  H01G11/84 ,  H01G11/56 ,  H01G11/08 ,  H01L27/12 ,  H01L29/66 ,  H01M10/0562 ,  H01G11/46

CPC classification number: H01L27/13 ,  H01G11/08 ,  H01G11/46 ,  H01G11/56 ,  H01G11/84 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1255 ,  H01L27/1259 ,  H01L29/24 ,  H01L29/66969 ,  H01L29/7869 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/0585 ,  H01M2300/0065 ,  H01M2300/0071 ,  H01M2300/0082 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y10T29/49115

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.

Abstract translation: 公开了一种蓄电元件，其包括正极集电体层和负极集电体层，其被布置在同一平面上并且可以通过简单的工艺形成。 蓄电元件还包括在正极集电体层上的正极活性物质层; 负极集电体层上的负极活性物质层; 以及至少与正极活性物质层和负极活性物质层接触的固体电解质层。 通过氧化处理形成正极活性物质层和负极活性物质层。

公开(公告)号：US20160118644A1

公开(公告)日：2016-04-28

申请号：US14884350

申请日：2015-10-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Teppei OGUNI ,  Ai NAKAGAWA

IPC: H01M4/133 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/0567 ,  H01M10/0585 ,  H01M2/16 ,  H01M10/42 ,  H01M4/587 ,  H01M10/0568

CPC classification number: H01M4/133 ,  H01M2/1653 ,  H01M2/30 ,  H01M4/0471 ,  H01M4/139 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/587 ,  H01M4/62 ,  H01M10/049 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/425 ,  H01M10/46 ,  H01M2004/027 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0037 ,  H02J5/005 ,  H02J7/025 ,  H02J50/10 ,  H04B5/0031 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

Abstract: A lithium-ion storage battery with a high capacity retention rate is provided. A lithium-ion storage battery with a longer lifetime is provided. A method for fabricating a lithium-ion storage battery with a high capacity retention rate is provided. A lithium-ion storage battery includes a positive electrode, a negative electrode, and an electrolyte solution. A coating film which includes lithium oxide is provided over the surface of the negative electrode. The electrolyte solution may include LiTFSA or LiFSA. The method for fabricating a lithium-ion storage battery includes a first step of enclosing a positive electrode, a negative electrode, and an electrolyte solution in an exterior body and a second step of keeping the exterior body including the positive electrode, the negative electrode, and the electrolyte solution at temperature higher than or equal to 70 degrees Celsius for longer than or equal to 24 hours after the first step.

Abstract translation: 提供了具有高容量保持率的锂离子蓄电池。 提供寿命更长的锂离子蓄电池。 提供了一种制造具有高容量保持率的锂离子蓄电池的方法。 锂离子蓄电池包括正极，负极和电解质溶液。 在负极的表面上设置有包含氧化锂的涂膜。 电解质溶液可以包括LiTFSA或LiFSA。 锂离子蓄电池的制造方法包括将正极，负极和电解质溶液包封在外部本体中的第一工序，以及保持包括正极，负极等的外部主体的第二工序， 和电解质溶液的温度高于或等于70摄氏度，长于或等于第一步后24小时。

公开(公告)号：US20150295278A1

公开(公告)日：2015-10-15

申请号：US14744151

申请日：2015-06-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Tamae MORIWAKA

IPC: H01M10/0585 ,  H01M10/0562 ,  H01M10/0565

CPC classification number: H01L27/13 ,  H01G11/08 ,  H01G11/46 ,  H01G11/56 ,  H01G11/84 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1255 ,  H01L27/1259 ,  H01L29/24 ,  H01L29/66969 ,  H01L29/7869 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0565 ,  H01M10/0585 ,  H01M2300/0065 ,  H01M2300/0071 ,  H01M2300/0082 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y10T29/49115

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.

Abstract translation: 公开了一种蓄电元件，其包括正极集电体层和负极集电体层，其被布置在同一平面上并且可以通过简单的工艺形成。 蓄电元件还包括在正极集电体层上的正极活性物质层; 负极集电体层上的负极活性物质层; 以及至少与正极活性物质层和负极活性物质层接触的固体电解质层。 通过氧化处理形成正极活性物质层和负极活性物质层。

公开(公告)号：US20150262762A1

公开(公告)日：2015-09-17

申请号：US14645090

申请日：2015-03-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tatsuya IKENUMA ,  Kazutaka KURIKI ,  Ai NAKAGAWA

IPC: H01G11/38 ,  H01M4/04 ,  H01M4/583 ,  G06F1/16 ,  H01G11/86 ,  H01G11/40 ,  H01G11/66 ,  H01M4/62 ,  H01M4/133

CPC classification number: H01G11/38 ,  G06F1/16 ,  G06F1/1635 ,  H01G11/30 ,  H01G11/40 ,  H01G11/86 ,  H01M4/0404 ,  H01M4/0419 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/366 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M2004/027 ,  Y02E60/13 ,  Y02T10/7022

Abstract: The cycle performance of a lithium-ion secondary battery or a lithium-ion capacitor can be obtained by minimizing the decomposition reaction of an electrolytic solution, etc. in the repeated charge and discharge cycles of the lithium-ion secondary battery or the lithium-ion capacitor. An electrode includes a current collector and an active material layer over the current collector. The active material layer includes active material particles, a conductive additive, a binder, and a film containing silicon oxide as its main component. The surface of one of the active material particles includes at least one of a region in contact with the surface of another active material particle, a region in contact with the conductive additive, and a region in contact with the binder. The surface of the active material particle except these regions is at least partly in contact with the film containing silicon oxide as its main component.

Abstract translation: 锂离子二次电池或锂离子电容器的循环性能可以通过使锂离子二次电池或锂离子的重复充放电循环中的电解液等的分解反应最小化来获得 电容器。 电极包括在集电器上方的集电器和活性材料层。 活性物质层包括活性物质粒子，导电性添加剂，粘合剂以及以氧化硅为主要成分的膜。 活性物质颗粒之一的表面包括与另一活性物质颗粒的表面接触的区域，与导电添加剂接触的区域和与粘合剂接触的区域中的至少一个。 除了这些区域以外的活性物质颗粒的表面至少部分地与含有氧化硅作为其主要成分的膜接触。

公开(公告)号：US20250015298A1

公开(公告)日：2025-01-09

申请号：US18712312

申请日：2022-11-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Tetsuya KAKEHATA ,  Tetsuji ISHITANI ,  Kazutaka KURIKI ,  Masayuki KIMURA ,  Yasuhiro JINBO

IPC: H01M4/66 ,  H01M4/02 ,  H01M4/62 ,  H01M10/0525

Abstract: A secondary battery that can inhibit degradation of an electrode is provided. A flexible secondary battery is provided. A flexible secondary battery includes a positive electrode, a negative electrode, and an exterior body surrounding the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer provided over the positive electrode current collector. The negative electrode includes a negative electrode current collector and a negative electrode active material layer provided over the negative electrode current collector. One or both of the positive electrode current collector and the negative electrode current collector have rubber elasticity.

公开(公告)号：US20240421445A1

公开(公告)日：2024-12-19

申请号：US18718903

申请日：2022-12-02

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tatsuyoshi TAKAHASHI ,  Ryota TAJIMA ,  Kazutaka KURIKI ,  Mayumi MIKAMI

IPC: H01M50/533 ,  H01M50/105 ,  H01M50/178

Abstract: To provide a battery in which electrode distortion is suppressed in connecting an electrode terminal and a current collector exposed portion. The battery includes an electrode, an exterior body surrounding the electrode, and a lead extending from the inside to the outside of the exterior body. The electrode includes a current collector and an active material layer. The electrode includes a first region where the active material layer is provided over the current collector, and a second region where the current collector is exposed. The second region of the electrode includes a third region where the current collector is folded. The lead is connected to the electrode in the third region.

公开(公告)号：US20240347760A1

公开(公告)日：2024-10-17

申请号：US18293877

申请日：2022-07-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazuya SHIMADA ,  Yohei MOMMA ,  Shuhei YOSHITOMI ,  Fumiko TANAKA ,  Kazutaka KURIKI

IPC: H01M10/0525 ,  H01M4/02 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0568 ,  H01M10/44

CPC classification number: H01M10/0525 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0568 ,  H01M10/443 ,  H01M2004/021

Abstract: A lithium ion battery having an excellent discharge characteristics even at temperatures below freezing is to be provided. The lithium ion battery includes a positive electrode including a positive electrode active material, an electrolyte, and a negative electrode including a negative electrode active material that is a carbon material. In the lithium ion battery, a value of discharge capacity obtained by, after performing constant current charging at a charge rate of 0.1 C (where 1 C=200 mA/g) until a voltage reaches 4.5 V and then performing constant voltage charging at 4.5 V until a current value achieves 0.01 C in an environment of 25° C., performing constant current discharging at a discharge rate of 0.1 C until a voltage reaches 2.5 V in an environment of −40° C. is higher than or equal to 50% of a value of discharge capacity obtained by, after performing constant current charging at a charge rate of 0.1 C (where 1 C=200 mA/g) until a voltage reaches 4.5 V and then performing constant voltage charging at 4.5 V until a current value achieves 0.01 C in an environment of 25° C., performing constant current discharging at a discharge rate of 0.1 C until a voltage reaches 2.5V in an environment of 25° C.

公开(公告)号：US20240283023A1

公开(公告)日：2024-08-22

申请号：US18557127

申请日：2022-04-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Yumiko YONEDA ,  Yoshiharu ASADA ,  Tetsuya KAKEHATA

IPC: H01M10/0567 ,  H01G11/46 ,  H01G11/50 ,  H01G11/62 ,  H01M4/02 ,  H01M4/131 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M10/0567 ,  H01G11/46 ,  H01G11/50 ,  H01G11/62 ,  H01M4/131 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/028 ,  H01M2300/0025

Abstract: A lithium-ion secondary battery with a high capacity and excellent charge and discharge cycle performance is provided. A secondary battery with a high capacity is provided. A secondary battery whose shape hardly changes in a vacuum is provided. A bendable secondary battery is provided. The secondary battery contains a positive electrode active material and an electrolyte; the positive electrode active material is lithium cobalt oxide to which magnesium is added; magnesium has a gradient in which a concentration increases from an inner portion toward a surface of the positive electrode active material; the electrolyte contains an imidazolium salt; and a temperature range where the secondary battery can operate is higher than or equal to −20° C. and lower than or equal to 100° C.

公开(公告)号：US20240047655A1

公开(公告)日：2024-02-08

申请号：US18257335

申请日：2021-12-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Taisuke NAKAO ,  Teruaki OCHIAI ,  Tatsuyoshi TAKAHASHI ,  Shunpei YAMAZAKI

IPC: H01M4/36 ,  H01M4/587 ,  H01M4/133 ,  H01M4/38 ,  H01M4/134 ,  H01M10/0568 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/587 ,  H01M4/133 ,  H01M4/386 ,  H01M4/134 ,  H01M10/0568 ,  H01M10/0525 ,  H01M2004/027

Abstract: A secondary battery has a high capacity and little deterioration can be provided. Alternatively, a novel power storage device is provided. The secondary battery includes a positive electrode and a negative electrode. The negative electrode includes a first active material, a second active material, and a graphene compound. At least part of a surface of the first active material includes a region covered with the second active material. A surface of the second active material and at least part of the surface of the first active material each include a region covered with the graphene compound. The first active material includes graphite. The second active material includes silicon. The capacity of the positive electrode is greater than or equal to 50% and less than 100% of the capacity of the negative electrode.