公开(公告)号：US20190088983A1

公开(公告)日：2019-03-21

申请号：US15907808

申请日：2018-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yusuke NAMIKI ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M10/0525 ,  C01G23/00 ,  H01M4/485 ,  H01M10/42 ,  H01M4/131 ,  H01M4/36 ,  H01M10/44

Abstract: According to one embodiment, a lithium ion secondary battery is provided. The lithium ion secondary battery includes a negative electrode containing a negative electrode active material-containing layer, a positive electrode, and an electrolyte containing Li ions and Na ions. The negative electrode active material-containing layer contains a Na-containing titanium composite oxide. A ratio (WE/WA) of an Na amount WE (g/g) in the electrolyte to an Na amount WA (g/g) in the negative electrode active material-containing layer satisfies Formula (1) below: 1×10−1≤WE/WA≤1×105  (1).

公开(公告)号：US20190296343A1

公开(公告)日：2019-09-26

申请号：US16117978

申请日：2018-08-30

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

Inventor： Yasuhiro HARADA ,  Norio TAKAMI ,  Tetsuya SASAKAWA ,  Yusuke NAMIKI ,  Yasunobu YAMASHITA

IPC: H01M4/485 ,  C01G33/00 ,  H01M4/36 ,  H01M10/0525 ,  H01M2/30 ,  H01M2/10 ,  B60L11/18

Abstract: According to one embodiment, an active material is provided. The active material includes an Nb2TiO7 phase and at least one Nb-rich phase selected from the group consisting of an Nb10Ti2O29 phase, an Nb14TiO37 phase, and an Nb24TiO64 phase. The active material satisfies a peak intensity ratio represented by the following Formula (1). 0

公开(公告)号：US20170365842A1

公开(公告)日：2017-12-21

申请号：US15689583

申请日：2017-08-29

Applicant: Kabushiki Kaisha Toshiba

Inventor： Keigo HOSHINA ,  Wen ZHANG ,  Yusuke NAMIKI ,  Yoshiyuki ISOZAKI ,  Norio TAKAMI

IPC: H01M4/131 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02 ,  C07C255/08 ,  G01N21/35

CPC classification number: H01M4/131 ,  C07C255/08 ,  G01N21/552 ,  G01N2021/3595 ,  H01M4/13 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/621 ,  H01M4/622 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2004/021 ,  H01M2004/027

Abstract: A nonaqueous electrolyte battery electrode according to an embodiment includes a current collector and a mixed layer formed on one surface or both surfaces of the current collector. The mixed layer includes an active material and a binding agent. The ratio I2/I1 of the highest peak intensity I2 in peaks appearing in the wavelength range of 1400 to 1480 cm−1 to the highest peak intensity I1 in peaks appearing in the wavelength range of 2200 to 2280 cm−1 is 10 or more and 20 or less in an infrared absorption spectrum measured according to a total reflection measurement method. Alternatively, in the mixed layer, the ratio I3/I2 of the highest peak intensity I3 in peaks appearing in the wavelength range of 1650 to 1850 cm−1 to the highest peak intensity I2 in peaks appearing in the wavelength range of 1400 to 1480 cm−1 is 0.1 or more and 0.8 or less in an infrared absorption spectrum measured according to a total reflection measurement method.

公开(公告)号：US20230352745A1

公开(公告)日：2023-11-02

申请号：US18350939

申请日：2023-07-12

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuaki MURASHI ,  Yoshihiro NIIDA ,  Yuki WATANABE ,  Yusuke NAMIKI ,  Masataka SHIKOTA

IPC: H01M10/0587 ,  H01M50/411 ,  H01M50/44 ,  H01M50/489 ,  H01M50/204 ,  H01M4/134 ,  H01M4/485

CPC classification number: H01M10/0587 ,  H01M50/411 ,  H01M50/44 ,  H01M50/489 ,  H01M50/204 ,  H01M4/134 ,  H01M4/485

Abstract: According to one embodiment, provided is an electrode group having a flat structure including a flat portion, that includes a wound body and a fixing tape wound around the wound body. The wound body is configured of a stack wound 50 turns or more with a center thereof positioned along a first direction, where the stack includes a positive electrode, a negative electrode, and a separator. In a second direction intersecting a principal surface in the flat portion, a swollen-state thickness TS when impregnated with propylene carbonate and a dry thickness TD satisfy 1.01

公开(公告)号：US20190296337A1

公开(公告)日：2019-09-26

申请号：US16122283

申请日：2018-09-05

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

Inventor： Kazuhiro YASUDA ,  Yusuke NAMIKI ,  Tetsuya SASAKAWA ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/36 ,  H01M10/42 ,  H01M4/485 ,  H01M4/62 ,  B60L11/18

Abstract: According to one embodiment, an electrode including an active material-containing layer and a film is provided. The active material-containing layer contains an active material containing a titanium-containing oxide. The film is present on at least a part of a surface of the active material-containing layer. The film contains fluorine, an organic atom, and a metal ion. The fluorine includes fluorine bonded to the organic atom and fluorine bonded to the metal ion. The film satisfies a relationship of following formula (1), where F1 is a proportion of the fluorine bonded to the organic atom, and F2 is a proportion of the fluorine bonded to the metal ion: 0.1≤F2/F1≤0.6  (1).

公开(公告)号：US20180277828A1

公开(公告)日：2018-09-27

申请号：US15701525

申请日：2017-09-12

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yusuke NAMIKI ,  Keigo HOSHINA ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/131 ,  H01M4/133

CPC classification number: H01M4/131 ,  C01G23/005 ,  C01G33/00 ,  C01G33/006 ,  C01P2002/85 ,  C01P2004/61 ,  H01M4/0445 ,  H01M4/133 ,  H01M4/485 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer. The active material-containing layer includes an Na-containing niobium-titanium composite oxide having an orthorhombic crystal structure. The active material-containing layer satisfies I2/I1≥1. I1 is an intensity of a peak P1 appearing in a binding energy range of 289 eV to 292 eV in an X-ray photoelectron spectroscopy spectrum of the active material-containing layer. I2 is an intensity of a peak P2 appearing in a binding energy range of 283 eV to 285 eV in the X-ray photoelectron spectroscopy spectrum of the active material-containing layer.

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.