公开(公告)号：US20200168892A1

公开(公告)日：2020-05-28

申请号：US16774296

申请日：2020-01-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuhiro INOUE ,  Ryota TAJIMA ,  Naoki KURIHARA ,  Junpei MOMO

IPC: H01M4/134 ,  H01M4/62 ,  H01M4/66 ,  H01M10/052 ,  H01M4/38

Abstract: An object of one embodiment of the present invention is to provide a secondary battery in which deterioration of charge-discharge cycle characteristics is suppressed, to suppress generation of defects caused by expansion and contraction of an active material in a negative electrode, or to prevent deterioration caused by deformation of a secondary battery. To prevent deterioration, a material that can be alloyed with lithium and fluidified easily is used for a negative electrode. To hold a negative electrode active material over a surface of a current collector, a covering layer that covers the negative electrode active material is provided. Furthermore, a portion where the current collector and the negative electrode active material are in contact with each other is alloyed. In other words, an alloy that is in contact with both the current collector and the negative electrode active material is provided in the negative electrode.

公开(公告)号：US20200055378A1

公开(公告)日：2020-02-20

申请号：US16592119

申请日：2019-10-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kensuke YOSHIZUMI ,  Ryota TAJIMA

IPC: B60J3/02 ,  H04N7/18 ,  G09F21/04 ,  G09G3/20 ,  G09G3/00 ,  B60R11/02

Abstract: A display device or a driving support system which enables a driver to obtain information easily is provided. A display device or a driving support system which is unlikely to impose a burden on a driver is provided. A display device or a driving support system which is suitable for space saving is provided. A display device or a driving support system which is capable of large-area display is provided. A display device or a driving support system which does not impair the aesthetic appearance of the car interior is provided. The display device includes a display panel which has flexibility and can be transformed between a first form and a second form, and a driving means having a function of reversibly changing the display panel between the first form and the second form. The first form is a form in which a display surface of the display panel is suspended, and the second form is a form in which the display panel is stored upward.

公开(公告)号：US20180076482A1

公开(公告)日：2018-03-15

申请号：US15818814

申请日：2017-11-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yumiko YONEDA ,  Masaki YAMAKAJI ,  Ryota TAJIMA ,  Masaaki HIROKI

IPC: H01M10/0565 ,  H01M4/13 ,  H01M4/02 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0585

CPC classification number: H01M10/0565 ,  H01M2/0275 ,  H01M4/02 ,  H01M4/13 ,  H01M10/0436 ,  H01M10/052 ,  H01M10/0585 ,  H01M2300/0085 ,  Y02T10/7011

Abstract: A gel electrolyte and a separator are provided between the positive electrode current collector and the negative electrode current collector. The plurality of positive electrode current collectors and the plurality of negative electrode current collectors are stacked such that surfaces of negative electrodes with which active material layers are not coated or surfaces of positive electrodes with which active material layers are not coated are in contact with each other.

公开(公告)号：US20170250554A1

公开(公告)日：2017-08-31

申请号：US15434864

申请日：2017-02-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA ,  Kensuke YOSHIZUMI

IPC: H02J7/00 ,  A44C5/14 ,  A44C5/00 ,  H01M2/20

Abstract: A device capable of being used for a long time is achieved. A power supply, a connection method of a power supply, or a connecting member, for easy attachment and detachment and non-detachment when in use, is provided. A power supply, a connection method of a power supply, or a connecting member for easy replacement is provided. A highly designed power supply is provided. Power from a battery is supplied to an electronic device through a connecting member including a pipe, a spring, and a pair of pivots. The pair of pivots are electrically insulated from each other, and electrically connected to any one of a pair of electrodes of the battery. The electronic device into which the pair of pivots are inserted includes a pair of bearings capable of receiving power.

公开(公告)号：US20160329533A1

公开(公告)日：2016-11-10

申请号：US15145007

申请日：2016-05-03

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Ryota TAJIMA

IPC: H01M2/02 ,  H01M4/58 ,  H01M4/131 ,  H01M4/485 ,  H01M10/04 ,  H01M10/0525

Abstract: A secondary battery with high capacity per unit volume can be provided. A flexible secondary battery with a novel structure can be provided. A secondary battery that can be bent repeatedly can be provided. A highly reliable secondary battery can be provided. A long-life secondary battery can be provided. A secondary battery comprises an inner structure and an exterior body that surrounds the inner structure. The inner structure comprises a positive electrode and a negative electrode. The exterior body comprises a first exterior film and a second exterior film. A region comprising reduced graphene oxide lies between the first exterior film and the second exterior film. The graphene oxide preferably comprises a region where the concentration of oxygen is higher than or equal to 2 atomic percent and lower than or equal to 20 atomic percent.

Abstract translation: 可以提供每单位体积容量高的二次电池。 可以提供具有新颖结构的柔性二次电池。 可以提供可以重复弯曲的二次电池。 可以提供高度可靠的二次电池。 可以提供长寿命的二次电池。 二次电池包括内部结构和围绕内部结构的外部主体。 内部结构包括正极和负极。 外部主体包括第一外部膜和第二外部膜。 包含减少的石墨烯氧化物的区域位于第一外部膜和第二外部膜之间。 氧化石墨烯优选包含氧浓度高于或等于2原子％且低于或等于20原子百分比的区域。

公开(公告)号：US20160043363A1

公开(公告)日：2016-02-11

申请号：US14814745

申请日：2015-07-31

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Ryota TAJIMA ,  Masaaki HIROKI ,  Daisuke FURUMATSU

IPC: H01M2/10 ,  H01M10/0525 ,  H01M10/0583 ,  H01M2/02 ,  H01M2/30 ,  H01M2/18

CPC classification number: H01M2/1022 ,  H01M2/0207 ,  H01M2/18 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0583

Abstract: A wearable device needs to have a design corresponding to complicated surfaces of human bodies. Thus, an electronic device that can fit the characteristics of each individual human body after being purchased and can be worn naturally and comfortably is provided. The electronic device includes a secondary battery which can be transformed. By using a secondary battery which can be transformed, for example, a secondary battery can be efficiently placed in a narrow and elongated space in the electronic device, and the elongated secondary battery can be bent together with the electronic device. Furthermore, the weight balance of the electronic device can be easily adjusted.

Abstract translation: 可穿戴装置需要具有对应于人体复杂表面的设计。 因此，可以提供一种可以在购买之后适应每个人体的特征并且可以自然而舒适地佩戴的电子装置。 电子设备包括可以变形的二次电池。 通过使用可以进行变形的二次电池，例如可以将二次电池有效地放置在电子设备的狭窄且细长的空间中，并且可以使该细长的二次电池与电子设备一起弯曲。 此外，可以容易地调整电子设备的重量平衡。

公开(公告)号：US20150162590A1

公开(公告)日：2015-06-11

申请号：US14553270

申请日：2014-11-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru TAKAHASHI ,  Ryota TAJIMA

IPC: H01M2/30 ,  H01M2/20 ,  H01M10/04

CPC classification number: H01M2/30 ,  H01M2/06 ,  H01M2/266 ,  H01M10/0525 ,  H01M10/0585 ,  Y10T29/49108

Abstract: Provided is a power storage device having a positive electrode and a negative electrode which are enveloped in an exterior body. The positive electrode has a first tab region which extends outside the exterior body so as to electrically connect the positive electrode to a positive electrode lead. Similarly, the negative electrode has a second tab region which extends outside the exterior body so as to electrically connect the negative electrode to a negative electrode lead. Each of the first tab region and the second tab region has a plurality of holes which are placed in the exterior body. A method for fabricating the power storage device is also disclosed.

Abstract translation: 提供一种蓄电装置，其具有被包封在外部主体中的正极和负极。 正极具有延伸到外部主体外部的第一突片区域，以将正极电极连接到正极引线。 类似地，负极具有延伸到外部主体外部的第二突片区域，以将负极电连接到负极引线。 第一突片区域和第二突片区域中的每一个具有放置在外部主体中的多个孔。 还公开了一种用于制造蓄电装置的方法。

公开(公告)号：US20150147626A1

公开(公告)日：2015-05-28

申请号：US14555644

申请日：2014-11-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA ,  Yuugo Goto ,  Yumiko Yoneda ,  Junya Goto ,  Takuya Miwa

IPC: H01M2/16 ,  H05K5/00

CPC classification number: H05K5/0086 ,  H01M2/0277 ,  H01M2/0285 ,  H01M2/0287 ,  H01M2/06 ,  H01M2/1613 ,  H01M2/162 ,  H01M2/1626 ,  H01M2/1653 ,  H01M2/18 ,  H01M2/266 ,  H01M4/58 ,  H01M10/0463 ,  H01M10/052 ,  H01M10/0585 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02E60/13

Abstract: To provide a power storage unit having a structure which is unlikely to break down by change in shape, such as bending. An electrode plate is covered with a sheet of an insulator which is folded in two. The sheet is preferably processed into a bag-like shape or an envelope-like shape by bonding overlapping portions of the sheet in the periphery of the electrode plate. The electrode plate and the sheet are fixed to an exterior body. In the case where the shape of the exterior body is changed by bending or the like, the electrode plate and the sheet can slide together in the exterior body. Thus, stress on the electrode plate due to bending can be relieved.

Abstract translation: 提供一种具有不易因形状变化（例如弯曲）而分解的结构的蓄电单元。 电极板被折叠成两个的绝缘体片覆盖。 优选通过在电极板的周边粘合片材的重叠部分来将片材加工成袋状或包封状。 电极板和片材固定在外部主体上。 在通过弯曲等改变外部主体的形状的情况下，电极板和片材可以在外部主体中一起滑动。 因此，可以减轻由于弯曲引起的电极板上的应力。

公开(公告)号：US20150140400A1

公开(公告)日：2015-05-21

申请号：US14529185

申请日：2014-10-31

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Minoru TAKAHASHI ,  Ryota TAJIMA

IPC: H01M10/04 ,  H01M2/18

CPC classification number: H01M10/0459 ,  H01M2/0212 ,  H01M2/18 ,  H01M10/0585

Abstract: A short-circuit between a positive electrode and a negative electrode due to a deposit on an electrode plate is prevented in a power storage unit such as a lithium-ion secondary battery. An electrode plate is covered by a folded insulating sheet. Bonding is performed on facing edges of the sheet which overlap with each other in a portion outer than the electrode plate. One or more openings are formed in the electrode plate, and the facing edges of the folded sheet are bonded to each other also in the opening. Such a bonding portion enables the sheet to be in closer contact with the electrode plate and prevents the displacement between the sheet and the electrode plate. When the electrode plate is deformed or vibrated, the sheet can be rubbed against a surface of the electrode plate, thereby removing a deposit from the surface of the electrode plate.

Abstract translation: 在诸如锂离子二次电池的蓄电单元中，防止了由于在电极板上沉积而导致的正极和负极之间的短路。 电极板被折叠的绝缘片覆盖。 在与电极板相比较的部分彼此重叠的片材的相对边缘上进行接合。 在电极板中形成一个或多个开口，并且折叠片的相对边缘也在开口中彼此结合。 这样的接合部能够使片材与电极板更接近，并且防止片材与电极板之间的位移。 当电极板变形或振动时，片材可以与电极板的表面摩擦，从而从电极板的表面去除沉积物。

公开(公告)号：US20150132648A1

公开(公告)日：2015-05-14

申请号：US14528579

申请日：2014-10-30

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuhiro INOUE ,  Ryota TAJIMA ,  Naoki KURIHARA ,  Junpei MOMO

IPC: H01M4/80 ,  H01M4/1395 ,  H01M4/04 ,  H01M4/38 ,  H01M4/66

CPC classification number: H01M4/80 ,  H01M4/0404 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/387 ,  H01M4/661 ,  H01M4/668 ,  H01M2220/30

Abstract: To inhibit degradation of charge and discharge cycle characteristics of a secondary battery. To suppress generation of defects due to expansion and contraction of an active material in a negative electrode. To inhibit deterioration of an electrode due to changes in its form. An electrode member including a current collector, an active material, and a porous body is used. The porous body is in contact with one surface of the current collector and includes a plurality of spaces. The active material is located in the space in the porous body. The space has a larger size than the active material.

Abstract translation: 为了抑制二次电池的充放电循环特性的劣化。 抑制由负极中的活性物质的膨胀和收缩导致的缺陷的产生。 为了抑制由于其形状的变化引起的电极的劣化。 使用包括集电体，活性物质和多孔体的电极构件。 多孔体与集电体的一个表面接触并且包括多个空间。 活性物质位于多孔体的空间中。 该空间的尺寸比活性材料大。