公开(公告)号：US20150279577A1

公开(公告)日：2015-10-01

申请号：US14659651

申请日：2015-03-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Aya UCHIDA ,  Teppei OGUNI ,  Rie YOKOI ,  Jun ISHIKAWA

IPC: H01G11/24 ,  H01M12/08 ,  H01G11/28 ,  H01G11/52 ,  H01G11/62 ,  H01M10/0569 ,  H01M10/0525

CPC classification number: H01G11/62 ,  H01G11/06 ,  H01G11/28 ,  H01G11/52 ,  H01G11/60 ,  H01M10/052 ,  H01M10/0569 ,  H01M2300/0045 ,  Y02E60/13

Abstract: A power storage device with high capacity, a power storage device with high energy density, a highly reliable power storage device, and a long-life power storage device are provided. The power storage device includes a positive electrode, a separator, a negative electrode, and an electrolytic solution. The electrolytic solution contains an alkali metal salt and an ionic liquid. The separator is located between the positive electrode and the negative electrode. At least part of the positive electrode overlaps with the negative electrode. At least part of an end portion of the negative electrode is located inside a region between end portions of the positive electrode.

Abstract translation: 提供具有高容量的蓄电装置，具有高能量密度的蓄电装置，高可靠性蓄电装置以及长寿命蓄电装置。 蓄电装置包括正极，隔板，负极和电解液。 电解液含有碱金属盐和离子液体。 隔板位于正极和负极之间。 正极的至少一部分与负极重叠。 负极的端部的至少一部分位于正极的端部之间的区域的内侧。

公开(公告)号：US20150248149A1

公开(公告)日：2015-09-03

申请号：US14631370

申请日：2015-02-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Jun ISHIKAWA

IPC: G06F1/26 ,  G06F1/16

CPC classification number: G06F1/26 ,  G06F1/1635 ,  G06F1/1641 ,  G06F1/1643 ,  G06F1/1652 ,  G06F1/1683 ,  G06F3/044 ,  G09G3/2096 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2310/0221 ,  G09G2330/02 ,  G09G2370/08

Abstract: An electronic device having a novel structure is provided. A battery is provided in each component of an electronic device, whereby the electronic device includes two batteries. The electronic device including the two batteries and a display portion that can be called a flexible display and has a plurality of foldable portions is provided as a novel device.

Abstract translation: 提供具有新颖结构的电子设备。 在电子设备的每个部件中提供电池，由此电子设备包括两个电池。 提供包括两个电池的电子设备和可以被称为柔性显示器并具有多个可折叠部分的显示部分作为新颖的装置。

公开(公告)号：US20150140449A1

公开(公告)日：2015-05-21

申请号：US14537975

申请日：2014-11-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Jun ISHIKAWA ,  Satoshi SEO ,  Rie YOKOI ,  Hiroshi KADOMA ,  Tomoya HIROSE

IPC: H01M10/0569 ,  C07D233/60 ,  H01M10/0525

CPC classification number: H01M10/0569 ,  C07D233/60 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/052 ,  H01M10/0525 ,  H01M2300/0045 ,  Y02T10/7011

Abstract: Provided are a nonaqueous solvent containing a compound with high conductivity and low viscosity and a high-performance power storage device using the nonaqueous solvent. The power storage device includes an ionic liquid. The ionic liquid contains an anion and a cation having a five-membered heteroaromatic ring having one or more substituents. At least one of the substituents is a straight chain formed of four or more atoms and includes one or more of C, O, Si, N, S, and P.

Abstract translation: 提供含有高导电性和低粘度的化合物的非水溶剂和使用非水溶剂的高性能蓄电装置。 蓄电装置包括离子液体。 离子液体含有阴离子和具有一个或多个取代基的五元杂芳环的阳离子。 至少一个取代基是由四个或多个原子形成的直链，并且包括C，O，Si，N，S和P中的一个或多个。

公开(公告)号：US20140099558A1

公开(公告)日：2014-04-10

申请号：US14046104

申请日：2013-10-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Toru ITAKURA ,  Kyosuke ITO ,  Jun ISHIKAWA ,  Rie YOKOI

IPC: H01M4/587 ,  H01M10/0525 ,  H01M10/0569

CPC classification number: H01M10/0569 ,  H01G11/06 ,  H01G11/32 ,  H01G11/50 ,  H01G11/60 ,  H01G11/62 ,  H01G11/84 ,  H01M2/162 ,  H01M2/1653 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/136 ,  H01M4/1397 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/621 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0585 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0034 ,  H01M2300/0045 ,  Y02E60/122 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

Abstract: A power storage device with reduced initial irreversible capacity is provided. The power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte solution. In the negative electrode active material layer, the content percentage of a carbon material with an R value of 1.1 or more is less than 2 wt %. The R value refers to a ratio of a peak intensity I1360 to a peak intensity I1580 (I1360/I1580). The peak intensity I1360 and the peak intensity I1580 are observed by Raman spectrometry at a Raman shift of 1360 cm−1 and a Raman shift of 1580 cm−1, respectively. The electrolyte solution contains a lithium ion and an ionic liquid composed of an organic cation and an anion.

Abstract translation: 提供了具有降低的初始不可逆容量的蓄电装置。 蓄电装置具备包括正极集电体和正极活性物质层的正极，负极集电体和负极活性物质层的负极以及电解液。 在负极活性物质层中，R值为1.1以上的碳材料的含有率小于2重量％。 R值是指峰强度I1360与峰值强度I1580（I1360 / I1580）的比。 通过拉曼光谱测定，在1360cm -1的拉曼位移和1580cm -1的拉曼位移分别观察峰强度I1360和峰强度I1580。 电解质溶液含有锂离子和由有机阳离子和阴离子组成的离子液体。

公开(公告)号：US20140099529A1

公开(公告)日：2014-04-10

申请号：US14042855

申请日：2013-10-01

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Jun ISHIKAWA ,  Kyosuke ITO ,  Rie YOKOI

IPC: H01G9/035 ,  H01G11/62 ,  H01M2/24

CPC classification number: H01G9/035 ,  H01G11/62 ,  H01G11/70 ,  H01G11/82 ,  H01M2/0285 ,  H01M2/24 ,  H01M4/661 ,  H01M10/0427 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/0587 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

Abstract: A power storage device with a higher degree of safety is provided. Further, a power storage device with improved cycle life is provided. In the power storage device, an ionic liquid as a solvent of an electrolyte solution, and an exterior body is covered with a conductive component so as to prevent direct contact between a positive electrode current collector and the exterior body. This suppresses elution of the positive electrode current collector due to contact between different kinds of metals and accordingly prevents a phenomenon in which the eluted metal of the positive electrode current collector is deposited on a negative electrode and the deposited metal comes in contact with a positive electrode. Thus, an internal short-circuit caused by the contact can be prevented.

Abstract translation: 提供了一种具有较高安全性的蓄电装置。 此外，提供了具有改善的循环寿命的蓄电装置。 在蓄电装置中，作为电解质溶液的溶剂的离子液体和外部主体被导电性部件覆盖，以防止正极集电体与外部体之间的直接接触。 这抑制了由于不同种类的金属之间的接触导致的正极集电体的溶出，因此防止了正极集电体的洗脱金属沉积在负极上并且沉积的金属与正极接触的现象 。 因此，可以防止由接触引起的内部短路。