公开(公告)号：US20180083252A1

公开(公告)日：2018-03-22

申请号：US15443494

申请日：2017-02-27

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuomi YOSHIMA ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M2/20 ,  H01M2/10 ,  H01M10/44 ,  H01M10/0565 ,  H01M10/42 ,  B60L7/10 ,  B60L3/00 ,  B60L11/18

CPC classification number: H01M2/206 ,  B60L3/0046 ,  B60L7/10 ,  B60L50/64 ,  H01M2/1077 ,  H01M2/202 ,  H01M2/22 ,  H01M2/26 ,  H01M10/0413 ,  H01M10/0436 ,  H01M10/0565 ,  H01M10/425 ,  H01M10/441 ,  H01M2220/20 ,  H01M2300/0082 ,  H01M2300/0085 ,  Y10S903/907

Abstract: An assembled battery includes non-aqueous electrolyte batteries laminated with each other and at least one lead being interposed between two adjacent batteries. The lead is connected to the two adjacent batteries and has an area larger than that of a side surface of each battery, the side surface being opposing to the lead. Each battery includes at least one positive electrode, at least one negative electrode and a non-aqueous electrolyte. The positive electrode includes a current collector and positive electrode active material layers provided on both side surfaces of the collector. The negative electrode includes a negative electrode current collector and negative electrode active material layers provided on both side surfaces of the collector.

公开(公告)号：US20170358825A1

公开(公告)日：2017-12-14

申请号：US15688215

申请日：2017-08-28

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kazuomi YOSHIMA ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M10/0565 ,  H01M10/0525 ,  H01M4/485 ,  C08F14/26 ,  C08F14/22

CPC classification number: H01M10/0565 ,  C08F14/22 ,  C08F14/26 ,  C09D127/16 ,  H01M4/485 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0585 ,  H01M2300/0017 ,  H01M2300/0071 ,  H01M2300/0088 ,  H01M2300/0091 ,  Y02T10/7011 ,  C08K3/01

Abstract: The present invention is provided to reduce the influence of expansion and contraction of an active material, form a favorable interface between the solid electrolyte and the active material, and increase ion conductivity in the electrolyte, thereby obtaining a wide operation temperature range. A secondary battery composite electrolyte includes an inorganic compound having an Li ion conductivity at room temperature that is 1×10−10 S/cm or more and having particle diameter of 0.05 μm or more and less than 8 μm, and an organic electrolyte. The weight ratio between the organic electrolyte and the inorganic compound is 0.1% or more and 20% or less.

公开(公告)号：US20170141390A1

公开(公告)日：2017-05-18

申请号：US15416506

申请日：2017-01-26

Applicant: KABUSHIKI KAISHA TOSHIBA

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

IPC: H01M4/485 ,  H01M4/36 ,  C01G41/00 ,  H01M2/10 ,  C01G39/00 ,  H01M10/42 ,  H01M4/587

CPC classification number: H01M4/485 ,  C01G33/006 ,  C01G35/006 ,  C01G39/006 ,  C01G41/006 ,  C01P2002/77 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2/1077 ,  H01M2/348 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/587 ,  H01M4/625 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/425 ,  H01M10/4257 ,  H01M10/486 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2200/10 ,  H01M2220/20 ,  H01M2220/30 ,  H01M2300/0017 ,  H01M2300/0022 ,  H01M2300/0068 ,  H01M2300/0082 ,  H01M2300/0085 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A vehicle containing an nonaqueous electrolyte battery, the nonaqueous electrolyte battery including: a negative electrode containing a negative electrode active material; a positive electrode; and a nonaqueous electrolyte, where the negative electrode active material contains a composite oxide of formula: Lix(Nb1-yTay)2-zTi1+0.5zM0.5zO7, where 0≦x≦5, 0≦y≦1, and 0.4≦z≦1, and M is at least one metal element selected from Mo and W.

公开(公告)号：US20240136497A1

公开(公告)日：2024-04-25

申请号：US18400926

申请日：2023-12-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuhiro HARADA ,  Kazuomi YOSHIMA ,  Norio TAKAMI

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

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

Abstract: An electrode material may include an 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 may contain the element A at a concentration in the range of 100 ppm to 2000 ppm.

公开(公告)号：US20240079575A1

公开(公告)日：2024-03-07

申请号：US18172881

申请日：2023-02-22

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yumiko SEKIGUCHI ,  Keigo HOSHINA ,  Kazuomi YOSHIMA ,  Yasuyuki HOTTA ,  Hayato SEKI ,  Hirofumi YASUMIISHI ,  Wataru UNO

IPC: H01M4/485 ,  H01M10/0525 ,  H01M50/446

CPC classification number: H01M4/485 ,  H01M10/0525 ,  H01M50/446 ,  H01M2004/021 ,  H01M2220/20

Abstract: Provided is a secondary battery including a negative electrode, a positive electrode, a separation layer in contact with an active material-containing layer of the negative electrode, and an aqueous electrolyte. A first concentration corresponding to a first metal concentration represented by Equation 1 (first metal concentration=atomic concentration of Hg, Pb, Zn, and/or Bi/sum of atomic concentrations of elements B to U in periodic table, excluding carbon and oxygen) in a boundary region between the active material-containing layer and the separation layer is 2% or more and 8.2% or less. A ratio of the first concentration to a second concentration corresponding to the first metal concentration represented by Equation 1 in the active material-containing layer excluding the boundary region is 2.5 or more and less than 4.

公开(公告)号：US20230088781A1

公开(公告)日：2023-03-23

申请号：US17651681

申请日：2022-02-18

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keigo HOSHINA ,  Yasuyuki HOTTA ,  Kazuomi YOSHIMA ,  Shinsuke MATSUNO ,  Norio TAKAMI

IPC: H01M50/534 ,  H01M4/485 ,  H01M4/66

Abstract: According to one embodiment, a secondary battery includes positive electrodes, negative electrodes, a separator, a positive electrode lead, a negative electrode lead, and an aqueous electrolyte. The positive electrodes each include a positive electrode current collector and a positive electrode tab. The positive electrode current collector includes a first polymeric material. The negative electrodes each include a negative electrode current collector and a negative electrode tab. The negative electrode current collector includes a second polymeric material. At least a portion of the positive electrode tab is in direct contact with the positive electrode lead. At least a portion of the negative electrode tab is in direct contact with the negative electrode lead.

公开(公告)号：US20230077637A1

公开(公告)日：2023-03-16

申请号：US17668662

申请日：2022-02-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tomoko SUGIZAKI ,  Kenya UCHIDA ,  Kazuomi YOSHIMA ,  Tomoe KUSAMA ,  Tetsuya SASAKAWA

IPC: H01M50/44 ,  H01M50/414 ,  H01M50/489

Abstract: According to one embodiment, an electrode structure is provided. The electrode structure includes: the current collector; the active material-containing layer provided on at least one surface of the current collector; and the organic fiber layer provided on the active material-containing layer. The organic fiber layer includes: the first region facing the active material-containing layer; and the second region adjacent to the first region, present on the center side of the main surface of the organic fiber layer, and facing the active material-containing layer. The density D1 of the first region of the organic fiber layer is higher than the density D2 of the second region of the organic fiber layer.

公开(公告)号：US20220302431A1

公开(公告)日：2022-09-22

申请号：US17462370

申请日：2021-08-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuta KANAI ,  Yasunobu YAMASHITA ,  Kazuomi YOSHIMA ,  Keigo HOSHINA ,  Tetsuya SASAKAWA ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/13 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0587

Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer and a current collector. The active material-containing layer comprises a first edge having an arc shape and a second edge positioned opposite to the first edge. The current collector comprises an active material-supporting section supporting the active material-containing layer, and an active material-non-supporting section. The curving amount is represented by a maximum distance from the first edge to a reference line connecting two points on the first edge. The curving amount is in a range of −1 mm or more and less than 0 mm.

公开(公告)号：US20220085353A1

公开(公告)日：2022-03-17

申请号：US17186066

申请日：2021-02-26

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuhiro HARADA ,  Kazuomi YOSHIMA ,  Norio TAKAMI

IPC: H01M4/36 ,  H01M4/485 ,  H01M10/0525 ,  B60L50/64

Abstract: According to one embodiment, an active material is provided. The active material includes a first niobium titanium composite oxide expressed by a general formula (I), and a second niobium titanium composite oxide expressed by a general formula (II) and having a rutile-type crystal structure. The first niobium titanium composite oxide belongs to a crystal structure of a space group C2/m, and has a difference Δp between a maximum value and a minimum value of Nb occupancy in a 4i site, the difference Δp being 0.50≤Δp≤0.80, KaNb2−bMb+1−cTicO7  (I) Ti1−yNbyOz  (II).

公开(公告)号：US20210075225A1

公开(公告)日：2021-03-11

申请号：US16783265

申请日：2020-02-06

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Taro FUKAYA ,  Norio TAKAMI ,  Yasuhiro HARADA ,  Takashi KISHI ,  Keigo HOSHINA ,  Kazuomi YOSHIMA ,  Yasunobu YAMASHITA

IPC: H02J7/00 ,  H01M10/46 ,  H01M10/44

Abstract: According to one embodiment, information related to a positive-electrode electric potential and a negative-electrode electric potential of each of one or more batteries is acquired, and whether deviation of the positive/negative-electrode electric potentials from a reference state is beyond a prescribed range is determined for each of one or more batteries. Further, in response to at least existence of a battery-to-be-restored that is a battery in which the determined deviation of positive/negative-electrode electric potentials from a reference state is beyond a prescribed range, a state of charge of the battery-to-be-restored is held in a restoration holding range for a prescribed time.