公开(公告)号：US20200076223A1

公开(公告)日：2020-03-05

申请号：US16610931

申请日：2018-05-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Hideaki SHISHIDO ,  Yusuke YOSHITANI ,  Haruki KATAGIRI ,  Yohei MOMMA

IPC: H02J7/04 ,  H02J7/02 ,  H02J7/00 ,  H02J50/20 ,  H02J50/80 ,  B60L53/12 ,  B60L50/60 ,  B60L53/62 ,  G05B13/02 ,  H01M10/46 ,  H01M10/44

Abstract: A charging control device using machine learning is provided. A high-security charging control device is provided. A charging control system with little deterioration is provided. A storage battery having excellent characteristics is provided.An approximate charging end time is calculated. A result obtained when it is different from the estimated charging end time is fed back and learned, and accordingly the charging end can be precisely estimated after the next time. That is, the portable information terminal makes a charging plan with the use of artificial intelligence and the secondary battery is charged based on information about the charging plan. The charging plan is made to reduce the retention time of the full charging (SOC 100%) and charging is executed. Charging history information is stored in the portable information terminal and made use of to make the next charging plan.

公开(公告)号：US20190326069A1

公开(公告)日：2019-10-24

申请号：US16502345

申请日：2019-07-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Nobuhiro INOUE ,  Junpei MOMO

IPC: H01G11/42 ,  H01M4/587 ,  H01M4/1393 ,  H01G11/32

Abstract: To improve the long-term cycle performance of a lithium-ion battery or a lithium-ion capacitor by minimizing the decomposition reaction of an electrolytic solution and the like as a side reaction of charge and discharge in the repeated charge and discharge cycles of the lithium-ion battery or the lithium-ion capacitor. A current collector and an active material layer over the current collector are included in an electrode for a power storage device. The active material layer includes a plurality of active material particles and silicon oxide. The surface of one of the active material particles has a region that is in contact with one of the other active material particles. The surface of the active material particle except the region is partly or entirely covered with the silicon oxide.

公开(公告)号：US20190280337A1

公开(公告)日：2019-09-12

申请号：US16462420

申请日：2017-11-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kazuhei NARITA ,  Ryota TAJIMA

IPC: H01M10/0569 ,  H01G11/52 ,  H01G11/60 ,  H01G11/62 ,  H01G11/68 ,  H01G11/78 ,  H01M10/052 ,  H01M10/0568 ,  H01M2/02 ,  H01M2/10 ,  H01M2/16 ,  H01M4/66

Abstract: Provided is a power storage device whose charging and discharging characteristics are unlikely to be degraded by heat treatment or a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolyte, and an exterior body. The separator is positioned between the positive electrode and the negative electrode and includes polyphenylene sulfide or cellulosic fiber. The electrolyte includes propylene carbonate, ethylene carbonate, and vinylene carbonate, lithium hexafluorophosphate, and lithium bis(pentafluoroethanesulfonyl)amide. A concentration of lithium hexafluorophosphate with respect to the electrolyte is more than or equal to 0.01 wt % and less than or equal to 1.9 wt % in a weight ratio.

公开(公告)号：US20190207175A1

公开(公告)日：2019-07-04

申请号：US16291198

申请日：2019-03-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA ,  Masaaki HIROKI ,  Daisuke FURUMATSU

IPC: H01M2/10 ,  H01M10/04 ,  H01M10/0525 ,  H01M2/18 ,  H01M10/0583

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.

公开(公告)号：US20170170521A1

公开(公告)日：2017-06-15

申请号：US15371820

申请日：2016-12-07

Applicant: Semiconductor Energy Laboratory Co., LTD

Inventor： Kazuhei NARITA ,  Ryota TAJIMA ,  Teppei OGUNI

IPC: H01M10/0569 ,  H01M4/66 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  G04G19/00 ,  H01G11/52 ,  H01G11/60 ,  H01G11/28 ,  H01G11/62 ,  H01G11/32 ,  H01G11/86 ,  H01M4/525 ,  H01M2/16

Abstract: To provide a power storage device whose charge and discharge characteristics are unlikely to be degraded by heat treatment. To provide a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolytic solution, and an exterior body. The separator is located between the positive electrode and the negative electrode. The separator contains polyphenylene sulfide or solvent-spun regenerated cellulosic fiber. The electrolytic solution contains a solute and two or more kinds of solvents. The solute contains LiBETA. One of the solvents is propylene carbonate.

公开(公告)号：US20170033327A1

公开(公告)日：2017-02-02

申请号：US15217407

申请日：2016-07-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Ryota TAJIMA

IPC: H01M2/02 ,  H05K5/00 ,  H01M4/134 ,  G06F1/16 ,  H01M10/0525 ,  H01M4/485

CPC classification number: H01M2/0275 ,  G06F1/163 ,  G06F1/1635 ,  H01M2/0212 ,  H01M2/0287 ,  H01M4/134 ,  H01M4/485 ,  H01M4/70 ,  H01M10/0525 ,  H01M2220/30

Abstract: An electronic device having a novel structure is provided. Specifically, an electronic device having a novel structure that can change its form into various appearances is provided. In a secondary battery, a foldable portion from which part of the components is removed by forming openings in a current collector becomes thin and can be more likely to be bent than the other regions. A cylindrical cushioning material overlapping with the foldable position of the secondary battery is provided. The provision of this cushioning material makes it possible to fix the minimum radius of curvature of the secondary battery at the foldable position. Accordingly, it is possible to prevent the exterior body from being broken due to bending along a curved surface with a smaller radius of curvature than a diameter of the cushioning material.

Abstract translation: 提供具有新颖结构的电子设备。 具体地说，提供了具有能够将其形式变更为各种外观的新颖结构的电子设备。 在二次电池中，通过在集电体中形成开口来除去部分成分的折叠部分变薄，并且比其它区域更容易弯曲。 提供了与二次电池的可折叠位置重叠的圆柱形缓冲材料。 提供这种缓冲材料使得可以将二次电池的最小曲率半径固定在可折叠位置。 因此，可以防止外部主体因曲率半径比缓冲材料的直径弯曲的曲面而弯曲。

公开(公告)号：US20170025675A1

公开(公告)日：2017-01-26

申请号：US15285725

申请日：2016-10-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuhiro INOUE ,  Kai KIMURA ,  Sachiko KATANIWA ,  Ryota TAJIMA

IPC: H01M4/131 ,  H01G11/06 ,  H01G11/28 ,  H01M4/38 ,  H01G11/46 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/48 ,  H01G11/66 ,  H01G11/58

CPC classification number: H01M4/131 ,  H01G11/06 ,  H01G11/28 ,  H01G11/46 ,  H01G11/50 ,  H01G11/58 ,  H01G11/66 ,  H01G11/68 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/362 ,  H01M4/366 ,  H01M4/386 ,  H01M4/483 ,  H01M4/485 ,  H01M4/62 ,  H01M4/628 ,  H01M10/0525 ,  H01M2004/027 ,  Y02E60/122 ,  Y02E60/13 ,  Y02P70/54 ,  Y02T10/7022

Abstract: A decomposition reaction of an electrolyte solution and the like caused as a side reaction of charge and discharge is minimized in repeated charge and discharge of a lithium ion battery or a lithium ion capacitor, and thus the lithium ion battery or the lithium ion capacitor can have long-term cycle performance. A negative electrode for a power storage device includes a negative electrode current collector and a negative electrode active material layer which includes a plurality of particles of a negative electrode active material. Each of the particles of the negative electrode active material has an inorganic compound film containing a first inorganic compound on part of its surface. The negative electrode active material layer has a film in contact with an exposed part of the negative electrode active material and part of the inorganic compound film. The film contains an organic compound and a second inorganic compound.

Abstract translation: 在锂离子电池或锂离子电容器的重复充放电中，作为充放电的副反应引起的电解液等的分解反应最小化，锂离子电池或锂离子电容器可以具有 长期循环性能。 蓄电装置的负极包括负极集电体和负极活性物质层，该负极活性物质层包含多个负极活性物质的粒子。 负极活性物质的每个颗粒在其表面的一部分上具有含有第一无机化合物的无机化合物膜。 负极活性物质层具有与负极活性物质的露出部分和无机化合物膜的一部分接触的膜。 该膜含有有机化合物和第二无机化合物。

公开(公告)号：US20160156071A1

公开(公告)日：2016-06-02

申请号：US14943070

申请日：2015-11-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masaki YAMAKAJI ,  Junpei MOMO ,  Ryota TAJIMA ,  Takahiro KASAHARA

IPC: H01M10/42 ,  H01M2/02 ,  H01M10/0525 ,  H01M10/48

CPC classification number: H01M10/425 ,  H01M2/0275 ,  H01M2/0287 ,  H01M10/0525 ,  H01M10/48 ,  H01M10/488 ,  H01M2220/30 ,  Y02E60/122

Abstract: To provide a lithium-ion storage battery or electronic device that is flexible and highly safe. One embodiment of the present invention is a flexible storage battery including a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, an exterior body that surrounds the positive electrode, the negative electrode, and the separator, and a wiring provided along the exterior body. At least part of the wiring is more easily breakable by deformation than the exterior body. The wiring is more vulnerable to deformation than the exterior body and thus damaged earlier than the exterior body. Damage to the wiring is detected and an alert is sent to a user; thus, the use of the storage battery can be stopped before the exterior body is damaged.

Abstract translation: 提供灵活高度安全的锂离子蓄电池或电子设备。 本发明的一个实施例是一种柔性蓄电池，其包括正极，负极，正极和负极之间的隔板，围绕正极，负极和隔板的外部主体，以及 沿着外部主体设置的接线。 布线的至少一部分通过变形比外部体更容易破裂。 布线比外部主体更容易变形，因此比外部体更早地损坏。 检测到接线损坏，向用户发送警报; 因此，可以在外部体损坏之前停止使用蓄电池。

公开(公告)号：US20160087305A1

公开(公告)日：2016-03-24

申请号：US14854349

申请日：2015-09-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

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

IPC: H01M10/0565 ,  H01M2/02

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.

Abstract translation: 在正极集电体和负极集电体之间设置凝胶电解质和隔膜。 堆叠多个正极集电体和多个负极集电体，使得不涂覆有活性物质层的负极的表面或不涂覆活性物质层的正极的表面彼此接触 。

公开(公告)号：US20150340664A1

公开(公告)日：2015-11-26

申请号：US14717615

申请日：2015-05-20

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Minoru TAKAHASHI ,  Yuugo GOTO ,  Yumiko YONEDA ,  Takuya MIWA ,  Ryota TAJIMA

IPC: H01M2/02

CPC classification number: H01M2/0275 ,  H01M2/021 ,  H01M2/0287 ,  H01M2/30 ,  H01M10/0436 ,  H01M2220/30

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.

Abstract translation: 在将具有比金属罐低的强度的膜用作二次电池的外部主体的情况下，设置在由外部主体包围的区域中的集电体，设置在外部主体的表面上的活性物质层 集电器等可能会在外部施加到二次电池上时损坏。 获得耐外力的二次电池。 在二次电池的中央部设置有开口，在开口部形成有端子。 通过热压接固定二次电池的外边缘。 此外，通过热压接固定二次电池的中心部分，使得即使当二次电池的外边缘部分弯曲时，弯曲量也受到限制。