公开(公告)号：US20140199584A1

公开(公告)日：2014-07-17

申请号：US14215983

申请日：2014-03-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Asato KONDO ,  Takashi KUBOKI

IPC: H01M4/131 ,  H01M4/136 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/131 ,  H01M4/136 ,  H01M4/386 ,  H01M4/387 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/623 ,  H01M10/052 ,  H01M10/0525

Abstract: An electrode for a nonaqueous electrolyte secondary battery of an embodiment has an active material layer containing an active material and a binder containing fluorine, and a current collector bound to the active material layer. When a thermal decomposition start temperature of the binder is T1° C. and a thermal decomposition end temperature of the binder is T2° C., one or more peaks are present in an ion chromatogram of any mass number selected at least from 81, 100, 132, and 200 in a thermal decomposition gas chromatography mass analysis at the thermal decomposition temperature of (T1+T2)/2° C. When a peak area at T1° C. is X, and a peak area at T2° C. is Y, the X and Y satisfy a relation of 2X≧Y.

Abstract translation: 本实施方式的非水电解质二次电池用电极具有包含活性物质和含氟的粘合剂的活性物质层和与活性物质层结合的集电体。 当粘合剂的热分解开始温度为T1℃，粘合剂的热分解结束温度为T2℃时，一个或多个峰存在于至少选自81,100的任何质量数的离子色谱图中 ，热分解温度为（T1 + T2）/ 2℃时的热分解气相色谱质谱分析中，132℃和200℃。当T1℃的峰面积为X时，峰面积为T2℃。 是Y，X和Y满足2X≥Y的关系。

公开(公告)号：US20220243997A1

公开(公告)日：2022-08-04

申请号：US17728138

申请日：2022-04-25

Applicant: Kabushiki Kaisha Toshiba ,  TOSHIBA MATERIALS CO., LTD.

Inventor： Tomohiro YAMASHITA ,  Takahiro KAWAMOTO ,  Tomoko EGUCHI ,  Takashi KUBOKI

IPC: F28D17/02 ,  F28D19/04 ,  C09K5/14

Abstract: A two-stage heat regenerating cryogenic refrigerator may include: a vacuum vessel; a first and second cylinder in the vessel; the second cylinder coaxially connected to the first cylinder; a first regenerator in the first cylinder, the first regenerator accommodating heat regenerating material (HRM) 1; and a second regenerator in the second cylinder accommodating HRM 2, HRM 2 including plural HRM particles, each HRM particle including a heat regenerating substance having a maximum value of specific heat at a temperature of 20 K or less of 0.3 J/cm3·K or more and a metal element; each HRM particle including a first and second region, the second region being closer to each HRM particle's outer edge than the first, and the second region having a metal element higher concentration than the first, the first and second region containing the heat regenerating substance, and the heat regenerating substance contains an oxide or oxysulfide component.

公开(公告)号：US20200052283A1

公开(公告)日：2020-02-13

申请号：US16655771

申请日：2019-10-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke MATSUNO ,  Hidesato SARUWATARI ,  Dai YAMAMOTO ,  Asato KONDO ,  Hiromichi KURIYAMA ,  Hideki SATAKE ,  Takashi KUBOKI

IPC: H01M4/133 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/62

Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 5 ml per 1 g when heated at 200° C. for 1 minute.

公开(公告)号：US20170271680A1

公开(公告)日：2017-09-21

申请号：US15259649

申请日：2016-09-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takayuki FUKASAWA ,  Kenji ESSAKI ,  Takashi KUBOKI ,  Shinsuke MATSUNO ,  Tomokazu MORITA

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/66 ,  H01M4/48 ,  H01M4/587 ,  H01M4/04 ,  H01M4/38

CPC classification number: H01M4/628 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/483 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M10/052 ,  H01M10/425 ,  H01M2004/027 ,  H01M2300/0037 ,  Y02T10/7011

Abstract: An electrode material for a nonaqueous electrolyte battery of the present embodiment includes a composite particle, the composite particle contains a silicon dioxide particle having an average primary particle size of D1, a silicon particle having an average primary particle size of D2, and a carbon material. D1 is 5 nm or more and 80 nm or less. The ratio D2/D1 of D2 to D1 is 0.3 or more and 8 or less.

公开(公告)号：US20170092942A1

公开(公告)日：2017-03-30

申请号：US15125428

申请日：2014-03-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takayuki FUKASAWA ,  Kenji ESSAKI ,  Tomokazu MORITA ,  Takashi KUBOKI ,  Yasuhiro GOTO

IPC: H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/38

CPC classification number: H01M4/366 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/30

Abstract: The active material for a nonaqueous electrolyte secondary battery of the present embodiment includes a core particle and a carbon layer. The core particle is formed of silicon particles having a twinned crystal in part of a surface. The carbon layer coats the core particle.

公开(公告)号：US20170077498A1

公开(公告)日：2017-03-16

申请号：US15259613

申请日：2016-09-08

Applicant: Kabushiki Kaisha Toshiba

Inventor： Takayuki FUKASAWA ,  Kenji ESSAKI ,  Tomokazu MORITA ,  Takashi KUBOKI

IPC: H01M4/36 ,  H01M4/38 ,  H01M10/42 ,  H01M4/66 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/587

Abstract: An electrode for a nonaqueous electrolyte battery of the embodiment includes a current collector; and an active material layer which includes an active material and is formed on the current collector. The active material layer includes at least one of a silicon particle and a silicon oxide particle. The active material layer has a plurality of cracks extending in a thickness direction of the active material layer.

Abstract translation: 本实施方式的非水电解质电池用电极具备集电体， 以及包含活性物质并形成在集电体上的活性物质层。 活性物质层包括硅颗粒和氧化硅颗粒中的至少一种。 活性物质层具有在活性物质层的厚度方向上延伸的多个裂纹。

公开(公告)号：US20170069938A1

公开(公告)日：2017-03-09

申请号：US15260614

申请日：2016-09-09

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tomokazu MORITA ,  Takashi KUBOKI ,  Shinsuke MATSUNO

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H01M4/38 ,  H01M4/134 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/583

CPC classification number: H01M10/448 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/446 ,  H01M10/46 ,  H01M10/48 ,  H02J7/0021 ,  H02J7/0047 ,  H02J7/007 ,  H02J7/042 ,  H02J2007/005

Abstract: According to an embodiment, a charging condition control apparatus includes a measurement unit, an estimation unit, a calculation unit and a control unit. The measurement unit measures a present battery capacity of a secondary battery. The estimation unit estimates a present end-of-charge potential of an anode of the secondary battery based on the present battery capacity and an open circuit potential curve of the anode. The calculation unit calculates a differential potential between the present end-of-charge potential and an initial end-of-charge potential of the anode. The control unit controls a charging condition of the secondary battery according to the differential potential.

Abstract translation: 根据实施例，充电条件控制装置包括测量单元，估计单元，计算单元和控制单元。 测量单元测量二次电池的当前电池容量。 估计单元基于当前电池容量和阳极的开路电位曲线来估计二次电池的阳极的当前充电电位。 计算单元计算当前充电电位和阳极的初始充电结束电位之间的差分电位。 控制单元根据差分电位来控制二次电池的充电状态。

公开(公告)号：US20160285081A1

公开(公告)日：2016-09-29

申请号：US15075653

申请日：2016-03-21

Applicant: Kabushiki Kaisha Toshiba

Inventor： Shinsuke MATSUNO ,  Norikazu OSADA ,  Sara YOSHIO ,  Takashi KUBOKI

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/587 ,  H01M4/38 ,  H01M4/131 ,  H01M4/48 ,  H01M10/0525 ,  H01M4/134

CPC classification number: H01M4/364 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/485 ,  H01M4/587 ,  H01M10/0525 ,  H01M2004/027 ,  Y02T10/7011

Abstract: A negative electrode for a nonaqueous electrolyte secondary battery of the embodiment includes: a negative electrode current collector; and a negative electrode active material layer which includes a negative electrode active material and is formed on the negative electrode current collector. The negative electrode active material layer includes silicon capable of reacting with lithium. The negative electrode active material layer includes a 1st layer containing an oxidized silicon compound and a 2nd layer containing the oxidized silicon compound. The 2nd layer has the smaller amount of the oxidized silicon compound than the 1st layer. The 2nd layer is provided on the surface of the negative electrode current collector.

Abstract translation: 本实施方式的非水电解质二次电池用负极包括：负极集电体; 以及包含负极活性物质并形成在负极集电体上的负极活性物质层。 负极活性物质层包括能与锂反应的硅。 负极活性物质层包括含有氧化硅化合物的第1层和含有氧化硅化合物的第2层。 第二层的氧化硅化合物的量比第一层少。 第二层设置在负极集电体的表面上。

公开(公告)号：US20150086873A1

公开(公告)日：2015-03-26

申请号：US14478125

申请日：2014-09-05

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuyuki HOTTA ,  Takashi KUBOKI ,  Tomokazu MORITA ,  Takayuki FUKASAWA ,  Kenji ESSAKI ,  Norikazu OSADA

IPC: H01M4/36 ,  H01M10/052 ,  H01M4/70

Abstract: A negative electrode for nonaqueous electrolyte secondary battery of an embodiment includes a current collector, and a negative electrode mixture layer arranged on the current collector. The negative electrode mixture layer includes a negative electrode active material, a conductive material, and a binder. The negative electrode active material is composite particles including a carbonaceous substance, a silicon oxide phase in the carbonaceous substance, and a silicon phase including crystalline silicon in the silicon oxide phase. The negative electrode active material satisfies d1/d0≧0.9 where an average thickness of the mixture layer is d0, and a maximum thickness of a single particle of the composite particles in a vertical direction, the particle occupying the mixture layer, to a surface of the current collector is d1.

Abstract translation: 实施方式的非水电解质二次电池用负极包括集电体和设置在集电体上的负极混合层。 负极复合层包括负极活性物质，导电性物质和粘合剂。 负极活性物质是包含碳质物质，碳质物质中的氧化硅相和氧化硅相中含有结晶硅的硅相的复合粒子。 负极活性物质满足d1 /d0≥0.9，其中混合层的平均厚度为d0，复合颗粒在垂直方向上的单个颗粒的最大厚度，占据混合层的颗粒， 集电极为d1。

公开(公告)号：US20140295249A1

公开(公告)日：2014-10-02

申请号：US14210775

申请日：2014-03-14

Applicant: Kabushiki Kaisha Toshiba

Inventor： Yasuyuki HOTTA ,  Takashi KUBOKI ,  Tomokazu MORITA

IPC: H01M4/13

CPC classification number: H01M4/13 ,  H01M4/622 ,  H01M10/052 ,  H01M2004/021 ,  Y02T10/7011

Abstract: An electrode for battery has an electrode mixture containing a binder and an active material particle selected from at least one of a carbonaceous material, a metal particle and a metal oxide particle formed on a current collector. When cutting strength of an interface between the current collector and the electrode mixture is represented by “a” and cutting strength in a horizontal direction within the electrode mixture is represented by “b”, the “a” and “b” satisfy a relation of a/b

Abstract translation: 电池用电极具有含有粘合剂的电极混合物和选自形成在集电体上的碳质材料，金属粒子和金属氧化物粒子中的至少一种的活性物质粒子。 当集电体和电极混合物之间的界面的切割强度由“a”表示，电极混合物内的水平方向的切割强度由“b”表示时，“a”和“b”满足关系式 a / b <1。