公开(公告)号：US20200091505A1

公开(公告)日：2020-03-19

申请号：US16296844

申请日：2019-03-08

Applicant: KABUSHIKI KAISHA TOSHIBA ,  Toshiba Infrastructure Systems & Solutions Corporation

Inventor： Keigo HOSHINA ,  Wen Zhang ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/36 ,  H01M10/0525 ,  H01M10/0566 ,  H01M4/505 ,  H01M4/131 ,  H01M4/62 ,  H01M4/485

Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer. The active material-containing layer includes an active material and a conductive agent. The active material contains primary particles of a niobium-titanium composite oxide. The conductive agent contains fibrous carbon. The primary particles have an average particle size of 0.3 μm or more and 2 μm or less. At least a part of a surface of the primary particles is coated with the fibrous carbon. A covering ratio of the primary particles by the fibrous carbon is 0.01% or more and 40% or less.

公开(公告)号：US10559848B2

公开(公告)日：2020-02-11

申请号：US15262275

申请日：2016-09-12

Applicant: Kabushiki Kaisha Toshiba

Inventor： Norio Takami ,  Kazuomi Yoshima ,  Yasuhiro Harada

IPC: H01M10/056

Abstract: According to one embodiment, a composite electrolyte includes lithium-containing oxide particles and an electrolytic composition. The electrolytic composition includes lithium ions, an organic solvent and a polymer. A content of the lithium-containing oxide particles in the composite electrolyte falls within a range of from 90% by weight to 98% by weight. A specific surface area of the lithium-containing oxide particles falls within a range of 10 m2/g to 500 m2/g and is measured by a BET adsorption method using N2.

公开(公告)号：US10439218B2

公开(公告)日：2019-10-08

申请号：US15692685

申请日：2017-08-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Fumihiro Tejima ,  Yasuhiro Harada ,  Kazuki Ise ,  Norio Takami

IPC: H01M4/485 ,  H01M10/0525 ,  H01M2/10 ,  C01G23/00 ,  C01G33/00 ,  B60L58/12 ,  B60L58/21 ,  B60L50/64 ,  H01M4/02

Abstract: According to one embodiment, there is provided an active material including particles of a composite oxide having an orthorhombic crystal structure and represented by the general formula Li2+wNa2−xM1yTi6−zM2zO14−δ. The particles of the composite oxide have an average crystallite size of 50 nm to 90 nm and an average primary particle size of 0.1 μm to 0.6 μm. M1 is at least one selected from the group consisting of Cs and K. M2 is at least one selected from the group consisting of Zr, Sn, V, Nb, Ta, Mo, W, Fe, Y, Co, Mn, and Al. w falls within 0≤w≤4, x falls within 0

公开(公告)号：US10396331B2

公开(公告)日：2019-08-27

申请号：US15392436

申请日：2016-12-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuomi Yoshima ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M2/16 ,  H01M2/10 ,  H01M2/30 ,  H01M4/485 ,  H01M4/58 ,  H01M10/42 ,  H01M10/44 ,  H01M10/052 ,  H01M10/056 ,  H01M2/14 ,  H01M2/18 ,  H01M10/0585

Abstract: A laminate that includes an active material layer including a plural of active material particles, a separator layered on the active material layer, and an organic electrolyte. The separator includes a first surface and a second surface opposed to the first surface, and includes particles containing an inorganic compound having lithium ion conductivity at 25° C. of 1×10−10 S/cm or more, and a ratio (L/Rmax) of a thickness L to a radius Rmax is greater than zero and less than or equal to five, where L and Rmax are defined in the application.

公开(公告)号：US20190088982A1

公开(公告)日：2019-03-21

申请号：US15907781

申请日：2018-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tomoko Sugizaki ,  Takashi Kishi ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M10/0525 ,  H01M2/10 ,  H01M4/485 ,  H01M10/42 ,  H01M10/46 ,  H01M10/0562 ,  H02J7/14 ,  B60L11/18

Abstract: According to one embodiment, a solid electrolyte separator is provided. The solid electrolyte separator is a sheet containing a solid electrolyte having a lithium ion conductivity. A first lithium ion conductivity in a peripheral edge region along an in-plane direction of the sheet is lower than a second lithium ion conductivity in a central region along the in-plane direction of the sheet.

公开(公告)号：US10199636B2

公开(公告)日：2019-02-05

申请号：US15260628

申请日：2016-09-09

Applicant: Kabushiki Kaisha Toshiba

Inventor： Takuya Iwasaki ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/131 ,  H01M2/34 ,  H01M4/485 ,  H01M4/525 ,  H01M2/10 ,  H01M10/0525

Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material containing-layer. The active material containing-layer includes active material particles containing at least one selected from a niobium titanium composite oxide and a composite oxide which is expressed by the general formula LixM11-yM2yTi6-zM3zO14+δ. The active material particles include primary particles having an average particle diameter of 0.1 to 10 μm and secondary particles having an average particle diameter of 1 to 30 μm. A pore diameter distribution of the active material containing-layer which is obtained by mercury porosimetry has a first peak which has a maximum value within a range of 0.01 to 2 μm and a second peak which has a maximum value within a range of exceeding 6 μm and equal to or smaller than 20 μm. An intensity of the second peak is 1/10 to ⅕ of an intensity of the first peak.

公开(公告)号：US10170761B2

公开(公告)日：2019-01-01

申请号：US15066433

申请日：2016-03-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki Ise ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/485 ,  C01G33/00 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/131 ,  H01M4/36 ,  H01M4/02

Abstract: In general, according to one embodiment, there is provided an active material. The active material contains active material primary particles of a monoclinic niobium-titanium composite oxide. The monoclinic niobium-titanium composite oxide contains at least one element selected from the group consisting of Mo, V, and W. A content of the at least one element in the monoclinic niobium-titanium composite oxide is within a range of 0.01 atm % or more and 2 atm % or less. Each of the active material primary particles has an aspect ratio within a range of 1 or more and less than 4 of a primary particle and a crystallite size within a range of 5 nm or more and 90 nm or less.

公开(公告)号：US20180277907A1

公开(公告)日：2018-09-27

申请号：US15702008

申请日：2017-09-12

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takuya Iwasaki ,  Tomoko Sugizaki ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M10/42 ,  H01M4/48 ,  H01M2/10 ,  H01M10/05

CPC classification number: H01M10/4257 ,  H01M2/1077 ,  H01M4/48 ,  H01M4/485 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0562 ,  H01M2004/027 ,  H01M2010/4271 ,  H01M2220/20 ,  H01M2300/0017 ,  H01M2300/0071 ,  H01M2300/0094 ,  Y02E60/122 ,  Y02T10/7011

Abstract: According to one embodiment, an electrode group is provided. The electrode group includes a positive electrode, a negative electrode, and a solid electrolyte layer provided between the positive electrode and the negative electrode and including a first portion including first solid electrolyte particles in contact with the positive electrode, a second portion including second solid electrolyte particles in contact with the negative electrode, and a third portion provided between the first and second portions and including third solid electrolyte particles. As for the average particle size, that of the third solid electrolyte particles is larger than that of the first solid electrolyte particles and that of the second solid electrolyte particles.

公开(公告)号：US10084180B2

公开(公告)日：2018-09-25

申请号：US15260823

申请日：2016-09-09

Applicant: Kabushiki Kaisha Toshiba

Inventor： Yasuhiro Harada ,  Norio Takami

IPC: H01M4/131 ,  H01M4/485 ,  C01G33/00 ,  H01M2/10 ,  H01M2/30 ,  H01M2/34 ,  H01M10/0525 ,  C01G39/00

CPC classification number: H01M4/131 ,  C01G33/006 ,  C01G39/006 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2/1077 ,  H01M2/30 ,  H01M2/348 ,  H01M4/485 ,  H01M10/0525 ,  H01M2200/10 ,  H01M2220/20 ,  Y02E60/122

Abstract: According to one embodiment, an active material including a monoclinic niobium-titanium composite oxide is provided. In the active material, a portion of niobium (Nb) or titanium (Ti) as a constituent element of Nb2TiO7 is substituted by an element. Here, the substitution of Nb or Ti satisfies any one of following formulas (1) to (3): Ti(IV)→0.75M(V)+0.25M(I)  (1) Ti(IV)→0.6M(VI)+0.4M(I)  (2) Nb(V)→0.8M(VI)+0.2M(I)  (3), where M(VI) is at least one of Mo and W, M(V) is at least one of Nb, Ta, and V, and M(I) is at least one of Na, K, Rb, and Cs.

公开(公告)号：US20180123127A1

公开(公告)日：2018-05-03

申请号：US15854407

申请日：2017-12-26

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuhiro Harada ,  Norio Takami ,  Yorikazu Yoshida ,  Kazuki Ise

IPC: H01M4/485 ,  C01G23/00 ,  C01G25/00 ,  C01G31/00 ,  C01G33/00 ,  C01G35/00 ,  H01M4/131 ,  C01G49/00 ,  C01G51/00 ,  H01M10/052 ,  H01M4/36 ,  C01G39/00 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: In general, according to one embodiment, there is provided an active material. The active material contains a composite oxide having an orthorhombic crystal structure. The composite oxide is represented by a general formula of Li2+wNa2−xM1yTi6−zM2zO14+δ. In the general formula, the M1 is at least one selected from the group consisting of Cs and K; the M2 is at least one selected from the group consisting of Zr, Sn, V, Nb, Ta, Mo, W, Fe, Co, Mn, and Al; and w is within a range of 0≤w≤4, x is within a range of 0