公开(公告)号：US09698411B2

公开(公告)日：2017-07-04

申请号：US13969146

申请日：2013-08-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Dai Yamamoto ,  Takuya Iwasaki ,  Yasuhiro Harada ,  Hiroki Inagaki ,  Hideki Satake

IPC: H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/485 ,  H01M4/62

CPC classification number: H01M4/131 ,  H01M4/0404 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/485 ,  H01M4/622 ,  Y02P70/54

Abstract: According to one embodiment, there is provided an electrode for battery which includes a current collector and an active material layer provided on the current collector. The active material layer contains particles of a lithium titanate compound having a spinel structure and a basic polymer. Here, the basic polymer is coating at least a part of the surface of the particles of the lithium titanate compound.

公开(公告)号：US09373841B2

公开(公告)日：2016-06-21

申请号：US14203800

申请日：2014-03-11

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuomi Yoshima ,  Yasuhiro Harada ,  Hiroki Inagaki ,  Norio Takami

IPC: H01M4/485 ,  H01M10/052

CPC classification number: H01M4/485 ,  H01M10/052 ,  Y02E60/122

Abstract: According to one embodiment, there are provided an active material for a battery having a high effective capacity, a nonaqueous electrolyte battery, and a battery pack. The active material contains a niobium-titanium composite oxide. When the active material is subjected to powder X-ray diffraction (XRD) using a Cu-Kα ray source, a peak appears in a range of 2θ=5°±0.5° in the diffraction pattern.

Abstract translation: 根据一个实施方案，提供了一种具有高有效容量的电池的活性材料，非水电解质电池和电池组。 活性物质含有铌 - 钛复合氧化物。 当使用Cu-Kα射线源对活性材料进行粉末X射线衍射（XRD）时，在衍射图中的峰值出现在2θ= 5°±0.5°的范围内。

公开(公告)号：US20150004500A1

公开(公告)日：2015-01-01

申请号：US14486624

申请日：2014-09-15

Applicant: Kabushiki Kaisha Toshiba

Inventor： Keigo Hoshina ,  Wen Zhang ,  Yasuhiro Harada ,  Hiroki Inagaki ,  Norio Takami

IPC: H01M4/62 ,  H01M4/131 ,  H01M4/48 ,  H01M4/36

CPC classification number: H01M4/628 ,  H01M4/131 ,  H01M4/364 ,  H01M4/366 ,  H01M4/483 ,  H01M4/5825 ,  H01M4/60 ,  H01M4/662 ,  H01M10/0525 ,  H01M10/0566 ,  H01M2004/027 ,  H01M2004/028 ,  Y02E60/122

Abstract: According to one embodiment, there is provided an electrode material. The electrode material includes an active material which includes a titanium oxide compound having a monoclinic titanium dioxide crystal structure. The electrode material further includes a compound which exists on the surface of the active material and has a trialkylsilyl group represented by the formula (I). wherein R1, R2 and R3, which may be the same or different, respectively represent an alkyl group having 1 to 10 carbon atoms.

Abstract translation: 根据一个实施例，提供了一种电极材料。 电极材料包括具有单斜钛氧化物晶体结构的氧化钛化合物的活性物质。 电极材料还包含存在于活性物质的表面上并具有式（I）所示的三烷基甲硅烷基的化合物。 其中R1，R2和R3可以相同或不同，分别表示具有1-10个碳原子的烷基。

公开(公告)号：US20140103934A1

公开(公告)日：2014-04-17

申请号：US14084714

申请日：2013-11-20

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Akihiro Matsui ,  Kazuto Kuroda ,  Yasuhiro Harada ,  Shinichiro Kosugi ,  Hisashi Oya ,  Mami Mizutani ,  Takashi Morimoto ,  Takeo Hayase ,  Yukitaka Monden ,  Norio Takami

IPC: G01R31/36

CPC classification number: G01R31/3634 ,  B60L3/0046 ,  B60L3/04 ,  B60L3/12 ,  B60L11/1853 ,  B60L11/1861 ,  B60L11/1864 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  G01R31/3651 ,  G01R31/3658 ,  G01R31/3662 ,  G01R31/3679 ,  G01R31/3689 ,  G06Q50/06 ,  H01M10/48 ,  H01M2220/20 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/7061

Abstract: An apparatus is disclosed that includes a resistance measuring unit operable to determine a solution resistance Rsol and a charge transfer resistance Rct of a battery; and at least one computer-readable non-transitory storage medium comprising code, that, when executed by at least one processor, is operable to provide an estimate of the present value of the battery by: comparing Rsol and Rct to historical deterioration transition information; estimating the number of remaining charge cycles before a discharge capacity lower limit is reached by the battery using the comparison; and estimating the number of remaining charge cycles before a discharge time lower limit is reached by the battery using the comparison. The estimate of the present value of the battery includes the smaller of the number of remaining charge cycles before a discharge capacity lower limit is reached or the number of remaining charge cycles before a discharge time lower limit is reached.

Abstract translation: 公开了一种装置，其包括电阻测量单元，其可操作以确定电池的溶液电阻R sol和电荷转移电阻Rct; 以及包括代码的至少一个计算机可读的非暂时性存储介质，所述代码当由至少一个处理器执行时可操作以通过以下方式来提供对所述电池的当前值的估计：将R sol和Rct与历史劣化转换信息进行比较; 在使用比较的电池达到放电容量下限之前估计剩余充电循环次数; 并且通过使用比较来估计电池达到放电时间下限之前的剩余充电循环次数。 电池的当前值的估计包括达到放电容量下限之前的剩余电荷循环次数或达到放电时间下限之前的剩余充电循环次数中的较小者。

公开(公告)号：US12211989B2

公开(公告)日：2025-01-28

申请号：US17005678

申请日：2020-08-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keigo Hoshina ,  Masanori Tanaka ,  Hironori Takatsuka ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/131 ,  H01M4/36 ,  H01M4/48 ,  H01M4/485 ,  H01M4/62 ,  H01M4/64 ,  H01M10/0525 ,  H01M4/02

Abstract: According to one embodiment, a battery is provided. The battery includes a positive electrode, and a negative electrode including a negative electrode active material-containing layer including a niobium-titanium composite oxide and a conductive agent that includes a carbon material. The negative electrode active material-containing layer includes a principal surface facing the positive electrode. Assuming that the thickness of the negative electrode active material-containing layer is A, a ratio (C2/C1) of carbon content ratio C2 at a depth of 0.5 A from the principal surface to carbon content ratio C1 at a depth of 1 μm from the principal surface satisfies 2≤C2/C1≤30.

公开(公告)号：US12040475B2

公开(公告)日：2024-07-16

申请号：US17155343

申请日：2021-01-22

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuhiro Harada ,  Kazuomi Yoshima ,  Norio Takami

IPC: H01M4/131 ,  C01G33/00 ,  H01M4/134 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/131 ,  C01G33/006 ,  H01M4/134 ,  H01M10/0525 ,  C01P2002/74 ,  H01M2004/027 ,  H01M2220/20

Abstract: According to one embodiment, an electrode material is provided. The electrode material includes active material particle containing: a niobium-titanium composite oxide having an average composition in which a molar ratio of niobium to titanium (MNb/MTi) is greater than 2; and at least one element A selected from the group consisting of potassium, iron and phosphorus. The active material particle contain the element A at a concentration in the range of 100 ppm to 2000 ppm.

公开(公告)号：US11984588B2

公开(公告)日：2024-05-14

申请号：US17007660

申请日：2020-08-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tetsuya Sasakawa ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/505 ,  B60L7/10 ,  B60L50/64 ,  H01M4/131 ,  H01M4/134 ,  H01M4/36 ,  H01M4/46 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/42 ,  H01M50/204 ,  H01M50/296 ,  H01M50/509 ,  H01M4/02

CPC classification number: H01M4/505 ,  B60L7/10 ,  B60L50/64 ,  H01M4/131 ,  H01M4/134 ,  H01M4/364 ,  H01M4/366 ,  H01M4/46 ,  H01M4/525 ,  H01M4/623 ,  H01M10/0525 ,  H01M10/4257 ,  H01M50/204 ,  H01M50/296 ,  H01M50/509 ,  B60Y2200/91 ,  B60Y2400/112 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2010/4271 ,  H01M2220/20

Abstract: According to one embodiment, there is provided an active material represented by a general formula Lix(NiaCobMncMd)1−s(Nb1−t−uTatM′u)sO2. Here, M is at least one selected from the group consisting of Li, Ca, Mg, Al, Ti, V, Cr, Zr, Mo, Hf, and W, M′ is at least one selected from the group consisting of K, P, Fe, Si, Na, Cu and Zn, and 1.0≤x≤1.3, 0≤a≤0.9, 0≤b≤1.0, 0≤c≤0.8, 0≤d≤0.5, a+b+c+d=1, 0.005≤s≤0.3, 0.0005≤t≤0.1, and 0≤u≤0.3 are satisfied.

公开(公告)号：US11508952B2

公开(公告)日：2022-11-22

申请号：US17007147

申请日：2020-08-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keigo Hoshina ,  Nen Zhang ,  Tetsuya Sasakawa ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/131 ,  H01M4/134 ,  H01M4/583 ,  H01M10/0525 ,  H01M50/20 ,  H01M4/02

Abstract: According to one embodiment, provided is a secondary battery including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a niobium-titanium composite oxide having fluorine atoms on at least part of a surface the niobium-titanium composite oxide. An abundance ratio AF of fluorine atoms, an abundance ratio ATi of titanium atoms, and an abundance ratio ANb of niobium atoms on a surface of the negative electrode according to X-ray photoelectron spectroscopy satisfy a relationship of 3.5≤AF/(ATi+ANb)≤50.

公开(公告)号：US11456462B2

公开(公告)日：2022-09-27

申请号：US16787232

申请日：2020-02-11

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tomoko Sugizaki ,  Tetsuya Sasakawa ,  Kazuomi Yoshima ,  Tomoe Kusama ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/66 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M4/02

Abstract: According to one embodiment, an electrode is provided. The electrode includes a current collector, a first layer formed on the current collector, and a second layer formed on at least part of the first layer. The first layer contains a monoclinic niobium titanium composite oxide. The second layer contains lithium titanate having a spinel structure. A porosity P2 of the second layer is within a range from 30% to 80%.

公开(公告)号：US11430985B2

公开(公告)日：2022-08-30

申请号：US16566308

申请日：2019-09-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keigo Hoshina ,  Kazuomi Yoshima ,  Tomoko Sugizaki ,  Tomoe Kusama ,  Tetsuya Sasakawa ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/36 ,  H01M4/485 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0562 ,  B60L50/64

Abstract: According to one embodiment, an electrode is provided. A length of a first active material portion along a first direction is within a range of 0.7T or more and 0.95T or less with respect to a thickness T of an active material-containing layer. The first direction is parallel to a thickness direction. A second active material portion further contains solid electrolyte particles. A ratio E1/E2 is 0 or more and 0.01 or less. The ratio E1/E2 represents a ratio of a content E1 of the solid electrolyte particles per unit area in the first active material portion (including 0) to a content E2 of the solid electrolyte particles per unit area in the second active material portion.