公开(公告)号：US20190198876A1

公开(公告)日：2019-06-27

申请号：US16289123

申请日：2019-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Norio TAKAMI ,  Kazuomi YOSHIMA ,  Takuya IWASAKI ,  Tomoko SUGIZAKI ,  Yasuhiro HARADA

IPC: H01M4/62 ,  H01M10/42 ,  H01M2/10 ,  H01M4/485 ,  H01M10/0525 ,  B60L50/64

CPC classification number: H01M4/62 ,  B60L50/64 ,  C01G23/003 ,  H01M2/1077 ,  H01M2/1626 ,  H01M4/13 ,  H01M4/131 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/622 ,  H01M10/0525 ,  H01M10/425 ,  H01M10/44 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2010/4271 ,  H01M2220/20

Abstract: According to one embodiment, there is provided an electrode including active material particles, polymer fibers and inorganic solid particles. The polymer fibers have an average fiber diameter of 1 nm to 100 nm.

公开(公告)号：US20190173121A1

公开(公告)日：2019-06-06

申请号：US16257103

申请日：2019-01-25

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

Inventor： Dai YAMAMOTO ,  Keigo HOSHINA ,  Ryo HARA ,  Norio TAKAMI ,  Yasuhiro HARADA

IPC: H01M10/056 ,  C01G33/00 ,  H01M4/131 ,  H01M4/36 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525

Abstract: According to one embodiment, provided is a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material containing orthorhombic Na-containing niobium-titanium composite oxide particles represented by general formula (1) Li2+vNa2−yM1xTi6−y−zNbyM2zO14+δ. In general formula (1), M1 is one or two or more elements selected from the group consisting of Cs, K, Sr, Ba, and Ca, M2 is one or two or more elements selected from the group consisting of Zr, Al, Sn, V, Ta, Mo, W, Fe, Co, and Mn, 0≤v

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：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：US20180277882A1

公开(公告)日：2018-09-27

申请号：US15692200

申请日：2017-08-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tomoko SUGIZAKI ,  Takuya IWASAKI ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M10/052 ,  H01M10/04 ,  H01M10/625 ,  H01M2/16 ,  H01M4/139 ,  H01M4/36

Abstract: According to one embodiment, an electrode structure is provided. The electrode structure includes a current collector, an active material layer provided on at least one surface of the current collector, and a separator layer provided on the active material layer. The separator layer includes a first region, and a second region which is adjacent to the first region and exists in the inside of the first region. An outline of a principal surface of the active material layer overlaps the first region of the separator layer, and a thickness of at least a part of the first region is thicker than a thickness of the second region.

公开(公告)号：US20180241083A1

公开(公告)日：2018-08-23

申请号：US15691197

申请日：2017-08-30

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Norio TAKAMI ,  Yasuhiro HARADA ,  Takuya IWASAKI

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0568 ,  H01M2/34 ,  H01M2/10 ,  H01M10/04 ,  H01M4/131

CPC classification number: H01M10/0567 ,  H01M2/1077 ,  H01M2/348 ,  H01M4/131 ,  H01M4/485 ,  H01M10/0418 ,  H01M10/0525 ,  H01M10/056 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2004/029 ,  H01M2200/10 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: According to one embodiment, a composite electrolyte includes 0.1% by weight to 10% by weight of polymer fibers, lithium-containing inorganic particles and an organic electrolytic solution. The polymer fibers have an average diameter of 1 nm to 100 nm. The organic electrolytic solution contains lithium ions.

公开(公告)号：US20170309906A1

公开(公告)日：2017-10-26

申请号：US15645675

申请日：2017-07-10

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kazuki ISE ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/48 ,  C01G33/00 ,  H01M10/052

CPC classification number: H01M4/483 ,  C01G33/00 ,  C01G33/006 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/03 ,  H01M10/052 ,  H01M2220/20

Abstract: A production method of a battery active material of the present embodiment includes a step of obtaining a coprecipitated product containing Ti and Nb by mixing a solution with a pH of 5 or lower, in which a Ti compound is dissolved, and a solution with a pH of 5 or lower, in which a Nb compound is dissolved, such that molar ratio of Ti and Nb (Nb/Ti) is adjusted within a range of 1≦Nb/Ti≦28, and then further mixing with an alkali solution with a pH of 8 or higher; and a step of burning the coprecipitated product under condition of 635° C. or higher and 1200° C. or lower.

公开(公告)号：US20170271708A1

公开(公告)日：2017-09-21

申请号：US15392037

申请日：2016-12-28

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kazuomi YOSHIMA ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M10/04 ,  H01M2/10 ,  H01M10/48 ,  H01M10/0583 ,  H01M10/0525 ,  H01M10/42

CPC classification number: H01M10/0418 ,  H01M2/1077 ,  H01M10/0525 ,  H01M10/0583 ,  H01M10/425 ,  H01M10/48 ,  H01M2010/4271 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A non-aqueous electrolyte battery is provided with a bipolar electrode unit and an insulating layer including non-aqueous electrolyte. The insulating layer covers positive and negative electrode active material layers on both side surfaces of a current collector of a bipolar electrode of the unit. The unit is folded at every predetermined length to have flat portions arranged to face each other and bent portions arranged between the flat portions to connect the flat portions. A thickness of one part of the insulating layer of the electrode, the one part being positioned on an outer side surface of each bent portion, is set to be larger than a thickness of the other part of the insulating layer, the other part being positioned on each flat portion.

公开(公告)号：US20170271666A1

公开(公告)日：2017-09-21

申请号：US15455160

申请日：2017-03-10

Applicant: Kabushiki Kaisha Toshiba

Inventor： Takashi KISHI ,  Kazuomi YOSHIMA ,  Wen ZHANG ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/485 ,  H01M2/16 ,  H01M10/0565 ,  H01M10/42

CPC classification number: H01M4/485 ,  H01M2/1646 ,  H01M2/166 ,  H01M2/1673 ,  H01M2/1686 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0565 ,  H01M10/0587 ,  H01M10/4235 ,  H01M10/425 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2200/20 ,  H01M2220/20 ,  H01M2300/0085 ,  Y02E60/122 ,  Y02T10/7011

Abstract: According to one embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode including a negative electrode active material layer, a separator layer, an intermediate region, and a gel nonaqueous electrolyte. The separator layer and the intermediate region hold at least a part of the gel nonaqueous electrolyte. The nonaqueous electrolyte battery satisfies a volume ratio VA/VB of 5 or more. VA is a volume of the intermediate region. VB is an average volume of gaps among the particles of the niobium-and-titanium-containing composite oxide in the negative electrode active material layer.

公开(公告)号：US20170271664A1

公开(公告)日：2017-09-21

申请号：US15428816

申请日：2017-02-09

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuhiro HARADA ,  Norio Takami

IPC: H01M4/485 ,  H01M10/42 ,  H01M4/131

Abstract: According to one embodiment, an active material is provided. The active material includes a composite of a phase of a titanium-including composite oxide and a phase of a titanium dioxide. The titanium-including composite oxide has crystal structures which belong to a space group Cmca, a space group Fmmm, or both the space group Cmca and the space group Fmmm.