公开(公告)号：US20240088385A1

公开(公告)日：2024-03-14

申请号：US18169982

申请日：2023-02-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yoshiaki MURATA ,  Kakuya UEDA ,  Yasuhiro HARADA ,  Kazuki ISE ,  Norio TAKAMI

IPC: H01M4/58 ,  H01M50/296

CPC classification number: H01M4/5825 ,  H01M50/296 ,  H01M2004/027

Abstract: In general, according to one embodiment, a niobium-titanium oxide is provided. The niobium-titanium oxide satisfies Formulae (1) to (3) below in an L*a*b* color space according to Japanese Industrial Standard JIS Z 8722:2009:


95.0≤L*≤100  (1)



−1.0≤a*≤1.0  (2)



−1.0≤b*≤6.0  (3).

公开(公告)号：US20190296327A1

公开(公告)日：2019-09-26

申请号：US16122072

申请日：2018-09-05

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki ISE ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/133 ,  H01M4/36 ,  H01M4/485 ,  H01M10/0525 ,  H01M10/42 ,  H01M2/10 ,  H01M2/30 ,  H01M4/62

Abstract: According to one embodiment, an electrode is provided. An average particle size L1 of the primary particles of the active material and an average particle size L2 of primary particles of the carbon particles satisfy the following formula (1). L1/100≤L2≤L1/10  (1) A covering ratio of the active material by the carbon particles is not less than 80%. The covering ratio is a ratio of a mapping area of the carbon particles to a mapping area of the active material on a mapping image of a section of the active material-containing layer by Raman spectroscopy.

公开(公告)号：US20180277835A1

公开(公告)日：2018-09-27

申请号：US15697958

申请日：2017-09-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki ISE ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/36 ,  H01M4/485 ,  H01M4/587 ,  H01M10/052

Abstract: According to one embodiment, an electrode including active material particles is provided. The active material particles contain monoclinic niobium-titanium composite oxide particles and an amorphous carbon body. The amorphous carbon body covers at least a part of surfaces of the monoclinic niobium-titanium composite oxide particles. A ratio S2/S1 of a carbon atom concentration S2 to a niobium atom concentration S1 at a surface of the electrode, according to X-ray photoelectron spectroscopy, is from 5 to 100.

公开(公告)号：US20180083279A1

公开(公告)日：2018-03-22

申请号：US15445226

申请日：2017-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Norio TAKAMI ,  Yusuke NAMIKI ,  Kazuki ISE ,  Yasuhiro HARADA

IPC: H01M4/525 ,  H01M2/10 ,  H01M2/02 ,  H01M2/16 ,  H01M4/131 ,  H01M4/505 ,  H01M4/58 ,  H01M4/48 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/42 ,  B60L11/18

CPC classification number: H01M4/525 ,  B60L58/10 ,  H01M2/024 ,  H01M2/1077 ,  H01M2/1083 ,  H01M2/1653 ,  H01M2/18 ,  H01M4/131 ,  H01M4/366 ,  H01M4/483 ,  H01M4/485 ,  H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/4207 ,  H01M2010/4271 ,  H01M2220/20 ,  H01M2300/0071

Abstract: According to one embodiment, a nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes positive electrode active material secondary particles and a layer. An average secondary particle size of the positive electrode active material secondary particles is from 3 μm to 25 μm. The layer covers at least a portion of surfaces of the positive electrode active material secondary particles. The layer contains a lithium titanium oxide and has a thickness of 3 nm to 30 nm. A shortest distance between the positive electrode and the negative electrode is 12 μm or less.

公开(公告)号：US20170077504A1

公开(公告)日：2017-03-16

申请号：US15260606

申请日：2016-09-09

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kazuki ISE ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/36 ,  H01M4/485 ,  H01M2/10 ,  H01M4/131 ,  H01M4/136 ,  H01M2/34 ,  H01M4/58

CPC classification number: H01M4/366 ,  H01M2/1077 ,  H01M2/348 ,  H01M4/131 ,  H01M4/485 ,  H01M4/5825 ,  H01M10/052 ,  H01M2004/027 ,  H01M2220/20 ,  Y02E60/122

Abstract: According to one embodiment, an active material is provided. The active material includes active material particles. The active material particle includes a core particle and a shell layer which covers at least a part of a surface of the core particle. The core particle contains a monoclinic or orthorhombic niobium-titanium composite oxide. The shell layer contains a compound which is at least one compound selected from the group consisting of a lithium-titanium composite oxide, an Nb-containing lithium-titanium composite oxide, a lithium-niobium composite oxide, a lithium phosphate, and an Nb-containing lithium phosphate. The compound has a composition different from that of the monoclinic or orthorhombic niobium-titanium composite oxide.

Abstract translation: 根据一个实施例，提供活性材料。 活性物质包括活性物质颗粒。 活性物质颗粒包括核心颗粒和覆盖核心颗粒表面的至少一部分的壳层。 核心颗粒含有单斜晶系或斜方晶铌钛复合氧化物。 壳层含有选自锂 - 钛复合氧化物，含Nb的锂 - 钛复合氧化物，锂 - 铌复合氧化物，磷酸锂和Nb-型复合氧化物中的至少一种化合物， 含磷酸锂。 该化合物具有与单斜晶系或斜方晶铌钛复合氧化物不同的组成。

公开(公告)号：US20160276663A1

公开(公告)日：2016-09-22

申请号：US15066710

申请日：2016-03-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yorikazu YOSHIDA ,  Yasuhiro HARADA ,  Kazuki ISE ,  Kazuomi YOSHIMA ,  Norio TAKAMI

IPC: H01M4/485 ,  H01M4/36 ,  H01M10/052 ,  H01M4/62

CPC classification number: H01M4/485 ,  H01M4/364 ,  H01M4/366 ,  H01M4/622 ,  H01M10/052 ,  H01M2004/021

Abstract: In general, according to one embodiment, there is provided an electrode. The electrode includes a current collector, a first electrode mixture layer formed on the current collector, and a second electrode mixture layer formed on the first electrode mixture layer. The first electrode mixture layer contains a niobium-titanium composite oxide that has a monoclinic crystal structure. The second electrode mixture layer contains a lithium titanate that has a spinel-type crystal structure.

Abstract translation: 通常，根据一个实施例，提供了一种电极。 电极包括集电体，形成在集电体上的第一电极混合物层和形成在第一电极混合物层上的第二电极混合物层。 第一电极混合物层含有具有单斜晶体结构的铌 - 钛复合氧化物。 第二电极混合物层含有具有尖晶石型晶体结构的钛酸锂。

公开(公告)号：US20160087275A1

公开(公告)日：2016-03-24

申请号：US14848922

申请日：2015-09-09

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Wen ZHANG ,  Keigo HOSHINA ,  Yasuhiro HARADA ,  Kazuki ISE ,  Norio TAKAMI

IPC: H01M4/485 ,  H01M10/0525 ,  H01M4/587 ,  H01M4/36 ,  H01M10/42

CPC classification number: H01M4/485 ,  C01G33/00 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/40 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/425 ,  H01M2004/028 ,  H01M2010/4271 ,  H01M2220/20

Abstract: According to one embodiment, there is provided an active material. The active material includes particles. Each of the particles includes a core phase and a shell phase surrounding at least a part of the core phase. The core phase includes a first monoclinic niobium-titanium composite oxide. The shell phase includes a second monoclinic niobium-titanium composite oxide. An oxidation number of titanium in the core phase is larger than an oxidation number of titanium in the shell phase, and/or an oxidation number of niobium in the core phase is larger than an oxidation number of niobium in the shell phase.

Abstract translation: 根据一个实施例，提供了一种活性材料。 活性物质包括颗粒。 每个颗粒包括围绕核心相的至少一部分的核相和壳相。 核心相包括第一单斜晶铌 - 钛复合氧化物。 壳相包括第二单斜晶铌 - 钛复合氧化物。 核相中的钛的氧化数大于壳相中的钛的氧化数，和/或核相中的铌的氧化数大于壳相中的铌的氧化数。

公开(公告)号：US20190088941A1

公开(公告)日：2019-03-21

申请号：US15899828

申请日：2018-02-20

Applicant: Kabushiki Kaisha Toshiba

Inventor： Yasuhiro HARADA ,  Norio TAKAMI ,  Kazuki ISE

IPC: H01M4/485 ,  H01M10/44 ,  H01M10/0525

Abstract: According to one embodiment, an active material containing a niobium-titanium composite oxide and Cu is provided.

公开(公告)号：US20180269472A1

公开(公告)日：2018-09-20

申请号：US15698345

申请日：2017-09-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki ISE ,  Shinsuke MATSUNO ,  Norio TAKAMI ,  Hiroki INAGAKI

IPC: H01M4/24 ,  H01M10/39 ,  H01M4/04 ,  B32B27/06 ,  H01M10/42

CPC classification number: H01M4/244 ,  B32B27/06 ,  H01M2/06 ,  H01M2/065 ,  H01M2/08 ,  H01M2/1094 ,  H01M4/0404 ,  H01M10/36 ,  H01M10/3945 ,  H01M10/4207 ,  H01M2004/021

Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a negative electrode including a negative electrode current collector, a negative electrode terminal electrically connected to the negative electrode current collector, a joint electrically connecting the negative electrode terminal and the negative electrode current collector, and a water repellent layer covering the joint. The joint is covered with the inner surface of the water repellent layer. A contact angle θ with respect to water on an outer surface of the water repellent layer satisfies 80°≤θ.

公开(公告)号：US20180083286A1

公开(公告)日：2018-03-22

申请号：US15445057

申请日：2017-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki ISE ,  Yasunobu Yamashita ,  Shinsuke Matsuno ,  Norio Takami ,  Hiroki Inagaki

IPC: H01M4/66 ,  H01M4/485 ,  H01M4/505 ,  H01M4/62 ,  H01M10/36 ,  H01M10/42 ,  H01M2/30 ,  H01M4/04 ,  B60L11/18

CPC classification number: H01M4/667 ,  B60L11/1851 ,  H01M2/305 ,  H01M4/0404 ,  H01M4/0442 ,  H01M4/38 ,  H01M4/48 ,  H01M4/485 ,  H01M4/505 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M4/664 ,  H01M10/36 ,  H01M10/425 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20 ,  H01M2300/0002

Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an electrolyte including a water-containing solvent and a lithium ion. The negative electrode includes an aluminum-containing negative electrode current collector and a boehmite-containing cover layer, and the boehmite-containing cover layer is provided on at least a part of a surface of the negative electrode current collector, and has a thickness of 10 nm to 1000 nm.