公开(公告)号：US20190221896A1

公开(公告)日：2019-07-18

申请号：US16360065

申请日：2019-03-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junpei MOMO ,  Kazutaka KURIKI ,  Hiromichi GODO ,  Shunpei YAMAZAKI

IPC: H01M10/46 ,  H02J50/20 ,  H01M10/0562 ,  H01L27/12 ,  H01M10/613 ,  H01M10/623 ,  A61N1/378 ,  G06F1/16 ,  H02J7/02 ,  H01L29/786 ,  H01M10/0525 ,  H01M10/0585 ,  H01M10/42 ,  H01M10/052 ,  H01L27/06 ,  H01L21/822

CPC classification number: H01M10/46 ,  A61N1/378 ,  G06F1/163 ,  H01L21/8221 ,  H01L27/0688 ,  H01L27/1218 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1251 ,  H01L29/78651 ,  H01L29/7869 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/425 ,  H01M10/613 ,  H01M10/623 ,  H01M2220/30 ,  H01M2300/0071 ,  H02J7/025 ,  H02J50/20

Abstract: A semiconductor device in which a circuit and a battery are efficiently stored is provided. In the semiconductor device, a first transistor, a second transistor, and a secondary battery are provided over one substrate. A channel region of the second transistor includes an oxide semiconductor. The secondary battery includes a solid electrolyte, and can be fabricated by a semiconductor manufacturing process. The substrate may be a semiconductor substrate or a flexible substrate. The secondary battery has a function of being wirelessly charged.

公开(公告)号：US20180005761A1

公开(公告)日：2018-01-04

申请号：US15685726

申请日：2017-08-24

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuhiro INOUE ,  Ryota TAJIMA ,  Tamae MORIWAKA ,  Junpei MOMO ,  Teppei OGUNI ,  Kai KIMURA ,  Kazutaka KURIKI ,  Shunpei YAMAZAKI

IPC: H01G9/042 ,  H01G11/26 ,  H01G11/50 ,  H01G11/06 ,  H01M4/133 ,  H01M4/02 ,  H01M4/134 ,  H01M4/36 ,  H01M10/0525

CPC classification number: H01G9/042 ,  H01G11/06 ,  H01G11/26 ,  H01G11/50 ,  H01M4/02 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M10/0525 ,  Y02E60/122 ,  Y02E60/13

Abstract: To improve the reliability of a power storage device. A granular active material including carbon is used, and a net-like structure is formed on part of a surface of the granular active material. In the net-like structure, a carbon atom included in the granular active material is bonded to a silicon atom or a metal atom through an oxygen atom. Formation of the net-like structure suppresses reductive decomposition of an electrolyte solution, leading to a reduction in irreversible capacity. A power storage device using the above active material has high cycle performance and high reliability.

公开(公告)号：US20170271713A1

公开(公告)日：2017-09-21

申请号：US15608439

申请日：2017-05-30

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomoya FUTAMUA ,  Tamae MORIWAKA ,  Takahiro KAWAKAMI ,  Junpei MOMO ,  Nobuhiro INOUE

IPC: H01M10/0525 ,  H01M4/66 ,  H01M4/36 ,  H01M4/13

CPC classification number: H01M10/0525 ,  C30B1/00 ,  H01M4/13 ,  H01M4/136 ,  H01M4/362 ,  H01M4/5825 ,  H01M4/665 ,  H01M4/668 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing, composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.

公开(公告)号：US20170133660A1

公开(公告)日：2017-05-11

申请号：US15127290

申请日：2015-03-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Naoki KURIHARA ,  Junpei MOMO ,  Ryota TAJIMA

IPC: H01M4/04 ,  H01M4/58 ,  H01M10/0568 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M4/0445 ,  H01M2/14 ,  H01M4/13 ,  H01M4/582 ,  H01M4/661 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2220/30

Abstract: A lithium-ion secondary battery with no negative electrode active material is provided. One embodiment of the present invention is a lithium-ion secondary battery including a positive electrode, a negative electrode, an electrolyte solution, and a separator between the positive electrode and the negative electrode. The negative electrode includes a negative electrode current collector which includes a region in direct contact with at least one of the electrolyte solution and the separator. The electrolyte solution contains fluorine. The negative electrode current collector has a function of making a deposit containing lithium to be deposited on a surface in charging. Furthermore, a spacer may be provided between the separator and the negative electrode. The electrolyte solution may contain an organic compound containing fluorine. Supply of fluorine from the electrolyte solution to lithium deposited on the surface of the negative electrode can suppress deposition of lithium dendrites (whiskers) in further deposition.

公开(公告)号：US20170084922A1

公开(公告)日：2017-03-23

申请号：US15368993

申请日：2016-12-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomoya FUTAMURA ,  Tamae MORIWAKA ,  Takahiro KAWAKAMI ,  Junpei MOMO ,  Nobuhiro INOUE

IPC: H01M4/58 ,  H01M10/0525

CPC classification number: H01M10/0525 ,  C30B1/00 ,  H01M4/13 ,  H01M4/136 ,  H01M4/362 ,  H01M4/5825 ,  H01M4/665 ,  H01M4/668 ,  H01M2004/021 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.

公开(公告)号：US20170077569A1

公开(公告)日：2017-03-16

申请号：US15343769

申请日：2016-11-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Minoru TAKAHASHI ,  Shunpei YAMAZAKI ,  Masaaki HIROKI ,  Kei TAKAHASHI ,  Junpei MOMO

IPC: H01M10/6571 ,  H01M10/0525 ,  H01M10/46 ,  H02J7/00 ,  H01M10/48 ,  H02S10/20 ,  H01M10/615 ,  H02J7/35 ,  H01M10/637 ,  H01M10/44

CPC classification number: H01M10/6571 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/443 ,  H01M10/465 ,  H01M10/486 ,  H01M10/615 ,  H01M10/63 ,  H01M10/637 ,  H02J7/007 ,  H02J7/35 ,  H02S10/20 ,  Y02E60/122

Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.

Abstract translation: 公开了一种可在宽温度范围内安全工作的蓄电单元。 蓄电单元包括：蓄电装置; 用于加热蓄电装置的加热器; 用于感测蓄电装置的温度的温度传感器; 以及控制电路，其被配置为当其存储温度低于第一温度或高于第二温度时禁止蓄电装置的充电。 第一温度的例子是允许在蓄电装置的负极上形成枝晶的温度，而第二温度的例子是由负极活性表面上形成的钝化膜分解的温度 材料。

公开(公告)号：US20160094079A1

公开(公告)日：2016-03-31

申请号：US14862307

申请日：2015-09-23

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Masaaki HIROKI ,  Junpei MOMO ,  Hideaki KUWABARA

IPC: H02J7/02 ,  H02J7/35 ,  H02J7/04 ,  H02J7/00

CPC classification number: H02J7/025 ,  H01M2/1022 ,  H02J7/0042 ,  H02J7/0047 ,  H02J7/0054 ,  H02J7/34 ,  H02J7/35 ,  H02J13/0075 ,  H02J50/10 ,  H02J50/12 ,  H02J2007/0096 ,  Y02E40/72 ,  Y04S10/123

Abstract: A secondary battery module capable of feeding power to a wearable device in a non-contact manner is provided. A power feeding system for an electronic device is provided. The power feeding system includes a secondary battery module and an electronic device. The secondary battery module includes a flexible secondary battery, a power sending portion for non-contact power transmission, a flexible thermoelectric power generating device, and a belt portion storing the flexible secondary battery and the flexible thermoelectric power generating device. The electronic device includes a power receiving portion for non-contact power transmission and is capable of power transmission from the power sending portion for non-contact power transmission which is included in the secondary battery module to the power receiving portion for non-contact power transmission which is included in the electronic device.

Abstract translation: 提供能够以非接触方式向可穿戴装置供电的二次电池模块。 提供了一种用于电子设备的馈电系统。 供电系统包括二次电池模块和电子设备。 二次电池模块包括柔性二次电池，用于非接触式电力传输的发电部，柔性热电发电装置和存储柔性二次电池和柔性热电发电装置的带部。 电子设备包括用于非接触式电力传输的电力接收部分，并且能够将包括在二次电池模块中的用于非接触电力传输的发送部分的电力传输到用于非接触电力传输的电力接收部分 其被包括在电子设备中。

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：US20140370379A1

公开(公告)日：2014-12-18

申请号：US14294481

申请日：2014-06-03

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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

IPC: H01M4/36

CPC classification number: H01M4/134 ,  H01M4/0416 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/623 ,  H01M4/80 ,  H01M10/052

Abstract: To increase the capacity and energy density of a secondary battery by using a novel material as a material for a negative electrode in order to increase the amount of lithium ions transferred in charge and discharge. In the case where the negative electrode includes a current collector and a negative electrode active material layer, gallium is used as the negative electrode active material, and the negative electrode active material layer contains resin at 2 wt % or more, preferably 10 wt % or more, adhesion between the current collector and the negative electrode active material can be increased. This inhibits separation between the current collector and the negative electrode active material due repeated expansion and contraction, resulting in longer lifetime of the secondary battery.

Abstract translation: 为了通过使用新型材料作为负极材料来增加二次电池的容量和能量密度，以增加在充电和放电中转移的锂离子的量。 在负极包括集电体和负极活性物质层的情况下，使用镓作为负极活性物质，负极活性物质层含有2重量％以上，优选为10重量％以上的树脂，或者 此外，可以提高集电体与负极活性物质的粘附性。 由于反复的膨胀和收缩，这抑制了集电体和负极活性物质的分离，导致二次电池的寿命更长。

公开(公告)号：US20140184172A1

公开(公告)日：2014-07-03

申请号：US14136503

申请日：2013-12-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Junpei MOMO ,  Hiroyuki MIYAKE ,  Kei TAKAHASHI

IPC: H02J7/00

CPC classification number: B60L11/1816 ,  B60L11/182 ,  G01R31/3606 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/44 ,  H02J7/0052 ,  H02J7/0057 ,  H02J7/0068 ,  Y02E60/122 ,  Y02T10/7011

Abstract: An object is to inhibit a decrease in the capacity of a power storage device or to compensate the capacity, by adjusting or rectifying an imbalance between a positive electrode and a negative electrode, which is caused by decomposition of an electrolyte solution at the negative electrode. Provided is a charging method of a power storage device including a positive electrode using an active material that exhibits two-phase reaction, a negative electrode, and an electrolyte solution. The method includes the steps of, after constant current charging, performing constant voltage charging with a voltage that does not cause decomposition of the electrolyte solution until a charging current becomes lower than or equal to a lower current value limit; and after the constant voltage charging, performing additional charging with a voltage that causes decomposition of the electrolyte solution until a resistance of the power storage device reaches a predetermined resistance.

Abstract translation: 本发明的目的是通过调节或校正由负极上的电解质溶液分解引起的正极和负极之间的不平衡来抑制蓄电装置的容量的降低或补偿容量。 提供一种蓄电装置的充电方法，其包括使用表现出二相反应的活性物质的正极，负极和电解液。 该方法包括以下步骤：在恒流充电之后，以不会导致电解质溶液分解的电压进行恒压充电直到充电电流低于或等于较低的电流值极限; 并且在恒压充电之后，用导致电解质溶液分解的电压进行附加充电直到蓄电装置的电阻达到预定电阻。