公开(公告)号：US10957900B2

公开(公告)日：2021-03-23

申请号：US15260974

申请日：2016-09-09

Applicant: Kabushiki Kaisha Toshiba

Inventor： Keigo Hoshina ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/36 ,  H01M2/10 ,  H01M2/34 ,  H01M4/505 ,  H01M4/131 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525 ,  H01M2/30 ,  C01G33/00 ,  C01G35/00 ,  C01G51/00 ,  C01G49/00 ,  C01G39/00 ,  C01G45/12

Abstract: According to one embodiment, there is provided an active material. The active material includes secondary particles. The secondary particles include first primary particles and second primary particles. The first primary particles include an orthorhombic Na-containing niobium-titanium composite oxide. The second primary particles include at least one selected from the group consisting of a carbon black, a graphite, a titanium nitride, a titanium carbide, a lithium titanate having a spinel structure, a titanium dioxide having an anatase structure, and a titanium dioxide having a rutile structure.

公开(公告)号：US20210083269A1

公开(公告)日：2021-03-18

申请号：US16804425

申请日：2020-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tomoe Kusama ,  Tetsuya Sasakawa ,  Kazuomi Yoshima ,  Tomoko Sugizaki ,  Wen Zhang ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M10/42 ,  H01M4/505 ,  H01M10/0525

Abstract: According to one embodiment, an electrode is provided. The active material-containing layer includes an active material, inorganic solid particles having lithium ion conductivity, and carbon fiber. A pore diameter DM at the first peak is 0.05 μm to 10 μm. A value SA-SB is 1.4 or more in a slope distribution curve of the active material-containing layer, where a vertical axis of the slope distribution curve represents a slope of a straight line passing through two adjacent measurement points on the log differential pore volume distribution curve and a horizontal axis of the slope distribution curve represents a smaller pore diameter of the two adjacent measurement points. The value SA-SB is obtained by subtracting a minimum slope value SB from a maximum slope value SA.

公开(公告)号：US10938020B2

公开(公告)日：2021-03-02

申请号：US16289009

申请日：2019-02-28

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

Inventor： Kazuomi Yoshima ,  Yasunobu Yamashita ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/131 ,  H01M10/0525 ,  H01M4/62 ,  H01M10/0562 ,  H01M10/0566 ,  H01M10/42 ,  B60L7/10 ,  B60L50/64 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525

Abstract: According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer including active material particles and solid electrolyte particles being present away from the active material particles. The active material particles have lithium ion conductivity. The solid electrolyte particles have first ion conductivity. The solid electrolyte particles include a first ion that is at least one selected from the group consisting of an alkali metal ion excluding a lithium ion, a Ca ion, an Mg ion, and an Al ion.

公开(公告)号：US10854931B2

公开(公告)日：2020-12-01

申请号：US15392851

申请日：2016-12-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keigo Hoshina ,  Fumihiro Tejima ,  Yorikazu Yoshida ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M10/42 ,  C01G51/00 ,  C01G33/00 ,  C01G39/00 ,  C01G49/00 ,  C01G45/12 ,  H01M2/30 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/44

Abstract: According to one embodiment, an active material is provided. This active material includes active material particles containing orthorhombic Na-containing niobium titanium composite oxide, and satisfies the following formula (1): 1≤A5/A0  (1) where A5 is a mole content ratio of a Li mole content L5 to a total of a Ti mole content T5 and a Nb mole content N5, and A0 is a mole content ratio of a Li mole content L0 to a total of a Ti mole content T0 and a Nb mole content N0.

公开(公告)号：US10854910B2

公开(公告)日：2020-12-01

申请号：US15907781

申请日：2018-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

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

IPC: H01M6/18 ,  H01M10/0525 ,  H01M2/10 ,  H01M4/485 ,  H01M10/42 ,  H01M10/46 ,  H01M10/0562 ,  H02J7/14 ,  B60L53/00 ,  H01M8/1246 ,  H01M2/14 ,  H01M10/056 ,  B60L7/10 ,  H01M4/02

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：US20200303730A1

公开(公告)日：2020-09-24

申请号：US16566308

申请日：2019-09-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keigo HOSHINA ,  Kazuomi Yoshima ,  Tomoko Sugizaki ,  Tomoe Kusama ,  Tetsuya Sasakawa ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/36 ,  H01M4/485 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0562

Abstract: According to one embodiment, an electrode is provided. A length of a first active material portion along a first direction is within a range of 0.7T or more and 0.95T or less with respect to a thickness T of an active material-containing layer. The first direction is parallel to a thickness direction. A second active material portion further contains solid electrolyte particles. A ratio E1/E2 is 0 or more and 0.01 or less. The ratio E1/E2 represents a ratio of a content E1 of the solid electrolyte particles per unit area in the first active material portion (including 0) to a content E2 of the solid electrolyte particles per unit area in the second active material portion.

公开(公告)号：US10777820B2

公开(公告)日：2020-09-15

申请号：US15262453

申请日：2016-09-12

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuomi Yoshima ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/66 ,  H01M10/058 ,  H01M2/34 ,  H01M10/0525 ,  H01M10/0583 ,  H01M10/0587 ,  H01M10/0565 ,  H01M4/02

Abstract: A non-aqueous electrolyte battery includes bi-polar electrodes and non-aqueous electrolyte layers. Each electrode has a pyroelectric member and positive-pole and negative-pole active material layers on one and the other surfaces of the member. In the electrode, a position of the positive-pole layer does not overlap a position of the negative-pole layer in a thickness direction of the member. A laminated product in which the bi-polar electrodes are laminated with the electrolyte layers being interposed between the positive-pole and negative-pole active material layers on one and the other members is provided. The product has one of a first type electrode group in which the product is spirally wound and a second type electrode group in which the product is alternately bent, folded, and layered.

公开(公告)号：US10741830B2

公开(公告)日：2020-08-11

申请号：US15697958

申请日：2017-09-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki Ise ,  Yasuhiro Harada ,  Norio Takami

IPC: H01M4/131 ,  H01M4/485 ,  H01M4/133 ,  H01M4/583 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0567 ,  H01M10/052 ,  H01M4/02

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：US10559820B2

公开(公告)日：2020-02-11

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 ,  H01M4/131 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02 ,  H01M4/1391 ,  H01M10/04 ,  H01M10/0587

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：US10553894B2

公开(公告)日：2020-02-04

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 ,  H01M10/625 ,  H01M2/16 ,  H01M4/139 ,  H01M4/36 ,  H01M10/04 ,  H01M2/18

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.