公开(公告)号：US20200185665A1

公开(公告)日：2020-06-11

申请号：US16783205

申请日：2020-02-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru TAKAHASHI ,  Yuugo GOTO ,  Yumiko YONEDA (formerly SAITO) ,  Takuya MIWA ,  Ryota TAJIMA

IPC: H01M2/02 ,  H01M2/30 ,  H01M10/04

Abstract: In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery which is resistant to external force is obtained. An opening is provided in a central portion of the secondary battery; and a terminal is formed in the opening. An outer edge of the secondary battery is fixed by thermocompression bonding. In addition, the central portion of the secondary battery is fixed by thermocompression bonding, so that the amount of bending is limited even when the outer edge portion of the secondary battery is bent.

公开(公告)号：US20160380271A1

公开(公告)日：2016-12-29

申请号：US15189517

申请日：2016-06-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Teruaki OCHIAI ,  Takahiro KAWAKAMI ,  Takuya MIWA

IPC: H01M4/66 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/0587 ,  H02J7/02 ,  H01M2/34 ,  H01M10/0585 ,  H01M4/1391 ,  H01M4/04 ,  H01L29/786 ,  H01M4/131 ,  H01M2/30

Abstract: A novel electrode is provided. A novel power storage device is provided. A conductor having a sheet-like shape is provided. The conductor has a thickness of greater than or equal to 800 nm and less than or equal to 20 μm. The area of the conductor is greater than or equal to 25 mm2 and less than or equal to 10 m2. The conductor includes carbon and oxygen. The conductor includes carbon at a concentration of higher than 80 atomic % and oxygen at a concentration of higher than or equal to 2 atomic % and lower than or equal to 20 atomic %.

Abstract translation: 提供了一种新颖的电极。 提供了一种新颖的蓄电装置。 提供具有片状形状的导体。 导体具有大于或等于800nm且小于或等于20μm的厚度。 导体面积大于或等于25mm2且小于或等于10m2。 导体包括碳和氧。 导体包括浓度高于80原子％的碳和浓度高于或等于2原子％且低于或等于20原子％的氧。

公开(公告)号：US20160079600A1

公开(公告)日：2016-03-17

申请号：US14948965

申请日：2015-11-23

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takuya MIWA ,  Kuniharu NOMOTO ,  Junpei MOMO

IPC: H01M4/58 ,  H01M4/36 ,  H01M4/587

CPC classification number: H01M4/5825 ,  C01D15/02 ,  C01G45/006 ,  C01G49/009 ,  C01G51/006 ,  C01G53/006 ,  C30B7/10 ,  C30B29/14 ,  H01M4/364 ,  H01M4/587 ,  H01M2004/028 ,  H01M2220/30

Abstract: An object is to reduce variation in shape of crystals that are to be formed. Solutions containing respective raw materials are made in an environment where an oxygen concentration is lower than that in air, the solutions containing the respective raw materials are mixed in an environment where an oxygen concentration is lower than that in air to form a mixture solution, and with use of the mixture solution, a composite oxide is formed by a hydrothermal method.

公开(公告)号：US20160013469A1

公开(公告)日：2016-01-14

申请号：US14751443

申请日：2015-06-26

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Ryota TAJIMA ,  Yuugo GOTO ,  Yumiko YONEDA ,  Junya GOTO ,  Takuya MIWA ,  Masaaki HIROKI

IPC: H01M4/13 ,  H01M4/70 ,  H01M10/0525 ,  H01M2/02 ,  H01M4/66

CPC classification number: H01M4/13 ,  H01M2/0275 ,  H01M4/139 ,  H01M10/0525 ,  H01M2002/0205 ,  H01M2004/021 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122

Abstract: An electronic device having a novel structure, specifically, an electronic device having a novel structure that can be changed into various appearances is provided. Specifically, after an active material layer is formed on one or both surfaces of a current collector, the active material layer in a bent region is partly removed. The removed region of the active material layer can be in a linear shape, a dot shape, or a matrix shape, for example. After the active material layer is formed on one or both surfaces of the current collector, laser processing for removing part of the active material layer in an irradiation region is performed using laser light or the like. On the region where the surface of the current collector is exposed, the active material layer is not provided, and this region is a region that does not function as a battery. Owing to this region, a secondary battery with a wide movable region can be achieved.

Abstract translation: 提供具有新颖结构的电子装置，具体地说，具有可以改变为各种外观的新颖结构的电子装置。 具体地说，在集电体的一个或两个表面上形成活性物质层之后，部分除去弯曲区域中的活性物质层。 活性物质层的去除区域例如可以是直线形状，点状或矩阵形状。 在集电体的一个或两个表面上形成活性物质层之后，使用激光等进行用于去除照射区域中的活性物质层的一部分的激光加工。 在集电体的表面暴露的区域，没有设置活性物质层，该区域是不能充当电池的区域。 由于该区域，可以实现具有宽移动区域的二次电池。

公开(公告)号：US20150099161A1

公开(公告)日：2015-04-09

申请号：US14490697

申请日：2014-09-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Aya HITOTSUYANAGI ,  Teppei OGUNI ,  Takuya MIWA ,  Hiroyuki MIYAKE

IPC: H01M10/04 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/62 ,  H01M4/58 ,  H01M4/583

CPC classification number: H01M10/0525 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/386 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/622 ,  H01M4/623 ,  H01M4/624 ,  H01M10/0583 ,  H01M10/0585 ,  H01M10/0587 ,  H01M10/425 ,  H01M2220/10 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122

Abstract: To achieve a power storage unit that can be repeatedly bent without a large decrease in charge and discharge capacity. In the flexible power storage unit, the content of a binder in an active material layer containing an active material is greater than or equal to 1 wt % and less than or equal to 10 wt %, preferably greater than or equal to 2 wt % and less than or equal to 8 wt %, and more preferably greater than or equal to 3 wt % and less than or equal to 5 wt %.

Abstract translation: 实现能够反复弯曲的蓄电单元，而不会大幅度降低充放电能力。 在柔性蓄电单元中，含有活性物质的活性物质层中的粘合剂含量为1重量％以上且10重量％以下，优选2重量％以下，优选2重量％以下， 小于或等于8重量％，更优选大于或等于3重量％且小于或等于5重量％。

公开(公告)号：US20140295261A1

公开(公告)日：2014-10-02

申请号：US14220354

申请日：2014-03-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroyuki MIYAKE ,  Teppei OGUNI ,  Tatsuya TAKAHASHI ,  Takuya MIWA ,  Aya HITOTSUYANAGI

IPC: H01M10/0566 ,  H01M4/587 ,  H01M10/052

CPC classification number: H01M10/0566 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0037

Abstract: An object is to provide an electrochemical device in which lithium deposition and reduction in battery capacity can be inhibited even when the concentration of a lithium salt in an electrolytic solution is lower than 1.0 M. Lithium deposition can be inhibited and lithium whiskers can be dissolved by applying an inversion pulse current for a short time more than once in a charging period of a secondary battery which deteriorates. By applying the inversion pulse current more than once, deterioration of a lithium-ion secondary battery due to repeated charging can be suppressed even when it is a secondary battery in which the concentration of a lithium salt in an electrolytic solution is lower than 1.0 M and therefore lithium is easily deposited.

Abstract translation: 本发明的目的是提供一种电化学装置，其中即使当电解液中的锂盐浓度低于1.0M时，锂沉积和电池容量的降低也可以被抑制。可以抑制锂沉积并且可以通过以下方式溶解锂晶须 在劣化的二次电池的充电期间，多次施加反转脉冲电流多次。 通过多次施加反转脉冲电流，即使是电解液中的锂盐浓度低于1.0M的二次电池，也能够抑制由于重复充电引起的锂离子二次电池的劣化， 因此易于沉积锂。