公开(公告)号：US20210296643A1

公开(公告)日：2021-09-23

申请号：US17009927

申请日：2020-09-02

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Keigo HOSHINA ,  Yasunobu YAMASHITA ,  Shinsuke MATSUNO

IPC: H01M4/525 ,  H01M4/505 ,  H01M4/131 ,  H01M4/133 ,  H01M4/134 ,  H01M4/36 ,  H01M10/0525 ,  H01M2/10

Abstract: According to one embodiment, a secondary battery including a positive electrode, a negative electrode, an insulating layer, and a nonaqueous electrolyte is provided. The positive electrode includes a positive electrode active material-containing layer containing a lithium nickel cobalt manganese composite oxide. The negative electrode includes a negative electrode active material-containing layer having a first surface. The insulating layer includes a solid electrolyte layer having a second surface that is at least partly opposed to or partly in contact with the first surface and containing a Li ion conductive oxide. At least part of the second surface or the first and second surfaces includes a Mn-containing substance. An abundance ratio of Mn on the second surface is higher than that on the first surface.

公开(公告)号：US20210091416A1

公开(公告)日：2021-03-25

申请号：US16897665

申请日：2020-06-10

Applicant: Kabushiki Kaisha Toshiba

Inventor： Hayato SEKI ,  Wataru UNO ,  Yasuyuki HOTTA ,  Shinsuke MATSUNO

IPC: H01M10/36 ,  H01M4/485 ,  H01M4/48 ,  H01M10/42

Abstract: A secondary battery includes a positive electrode, a first aqueous electrolyte held on the positive electrode, a negative electrode, a second aqueous electrolyte held on the negative electrode, and a separator interposed between the positive electrode and the negative electrode. A difference between an osmotic pressure (N/m2) of the first aqueous electrolyte and an osmotic pressure (N/m2) of the second aqueous electrolyte is 90% or less (including 0%) of the higher one of the osmotic pressure of the first aqueous electrolyte and the osmotic pressure of the second aqueous electrolyte.

公开(公告)号：US20210091370A1

公开(公告)日：2021-03-25

申请号：US16804320

申请日：2020-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Arisa YAMADA ,  Yasunobu YAMASHITA ,  Shinsuke MATSUNO

IPC: H01M4/131 ,  H01M2/16 ,  H01M4/46 ,  H01M2/10 ,  H01M10/0525

Abstract: According to one embodiment, an electrode group is provided. The electrode group includes a positive electrode that includes a lithium composite oxide LiMxMn2-xO4 (0

公开(公告)号：US20200052283A1

公开(公告)日：2020-02-13

申请号：US16655771

申请日：2019-10-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke MATSUNO ,  Hidesato SARUWATARI ,  Dai YAMAMOTO ,  Asato KONDO ,  Hiromichi KURIYAMA ,  Hideki SATAKE ,  Takashi KUBOKI

IPC: H01M4/133 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/62

Abstract: According to one embodiment, there is provided a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode including a negative electrode active material layer, and a non-aqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.1 ml to 5 ml per 1 g when heated at 200° C. for 1 minute.

公开(公告)号：US20190088999A1

公开(公告)日：2019-03-21

申请号：US15911959

申请日：2018-03-05

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yumiko SEKIGUCHI ,  Shinsuke MATSUNO ,  Hayato SEKI

IPC: H01M10/0566 ,  H01M10/04 ,  H01M2/10

Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an aqueous electrolyte containing alkali metal ions. The aqueous electrolyte contains an organic compound containing a carboxyl group or carboxylate group and a hydroxyl group. The pH of the aqueous electrolyte is 0 or less. The ratio of the weight of the organic compound to the weight of the aqueous electrolyte is within a range of 0.01% by weight to 6.5% by weight. The number of carbon atoms in the organic compound is 5 or more.

公开(公告)号：US20180277899A1

公开(公告)日：2018-09-27

申请号：US15697709

申请日：2017-09-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Norio TAKAMI ,  Kazuomi YOSHIMA ,  Hayato SEKI ,  Shinsuke MATSUNO

IPC: H01M10/0568 ,  H01M10/42 ,  H01M10/44 ,  H01M10/0562 ,  H01M2/10 ,  H01M4/485 ,  B60L7/10 ,  B60L11/18

CPC classification number: H01M10/0568 ,  B60L7/10 ,  B60L53/22 ,  B60L58/10 ,  H01M2/1077 ,  H01M2/166 ,  H01M4/485 ,  H01M10/054 ,  H01M10/0562 ,  H01M10/425 ,  H01M10/441 ,  H01M2220/20 ,  H01M2300/0068

Abstract: According to one embodiment, a secondary battery including a positive electrode, a negative electrode, a separator, a first electrolyte, and a second electrolyte is provided. The separator is provided at least between the positive electrode and the negative electrode. The separator includes an alkali metal ion conductive solid electrolyte. The first electrolyte is contained in at least the positive electrode. The first electrolyte includes a first alkali metal salt and a first aqueous solvent. The second electrolyte is contained in at least the negative electrode. The second electrolyte includes a second alkali metal salt and a second aqueous solvent.

公开(公告)号：US20180269472A1

公开(公告)日：2018-09-20

申请号：US15698345

申请日：2017-09-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki ISE ,  Shinsuke MATSUNO ,  Norio TAKAMI ,  Hiroki INAGAKI

IPC: H01M4/24 ,  H01M10/39 ,  H01M4/04 ,  B32B27/06 ,  H01M10/42

CPC classification number: H01M4/244 ,  B32B27/06 ,  H01M2/06 ,  H01M2/065 ,  H01M2/08 ,  H01M2/1094 ,  H01M4/0404 ,  H01M10/36 ,  H01M10/3945 ,  H01M10/4207 ,  H01M2004/021

Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a negative electrode including a negative electrode current collector, a negative electrode terminal electrically connected to the negative electrode current collector, a joint electrically connecting the negative electrode terminal and the negative electrode current collector, and a water repellent layer covering the joint. The joint is covered with the inner surface of the water repellent layer. A contact angle θ with respect to water on an outer surface of the water repellent layer satisfies 80°≤θ.

公开(公告)号：US20170271680A1

公开(公告)日：2017-09-21

申请号：US15259649

申请日：2016-09-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Takayuki FUKASAWA ,  Kenji ESSAKI ,  Takashi KUBOKI ,  Shinsuke MATSUNO ,  Tomokazu MORITA

IPC: H01M4/62 ,  H01M4/36 ,  H01M4/66 ,  H01M4/48 ,  H01M4/587 ,  H01M4/04 ,  H01M4/38

CPC classification number: H01M4/628 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/134 ,  H01M4/366 ,  H01M4/386 ,  H01M4/483 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M10/052 ,  H01M10/425 ,  H01M2004/027 ,  H01M2300/0037 ,  Y02T10/7011

Abstract: An electrode material for a nonaqueous electrolyte battery of the present embodiment includes a composite particle, the composite particle contains a silicon dioxide particle having an average primary particle size of D1, a silicon particle having an average primary particle size of D2, and a carbon material. D1 is 5 nm or more and 80 nm or less. The ratio D2/D1 of D2 to D1 is 0.3 or more and 8 or less.

公开(公告)号：US20170110723A1

公开(公告)日：2017-04-20

申请号：US15392890

申请日：2016-12-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Mitsuru ISHIBASHI ,  Yoshiyuki ISOZAKI ,  Shinsuke MATSUNO ,  Norio TAKAMI

IPC: H01M4/485 ,  H01M10/42 ,  H02J7/00 ,  H01M4/136 ,  H01M4/62 ,  H01M4/58 ,  H01M10/0525 ,  H01M4/131

CPC classification number: H01M4/485 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/622 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/425 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2200/00 ,  H01M2220/20 ,  H02J7/0026 ,  Y02E60/122 ,  Y02T10/7011

Abstract: According to one embodiment, a nonaqueous electrolyte battery is a provided. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode includes a positive electrode layer. The positive electrode layer includes at least one olivine-type compound and a positive electrode binder. The negative electrode includes a negative electrode layer. The negative electrode layer includes at least one oxide and a negative electrode binder. The positive electrode binder and/or the negative electrode binder include at least one compound selected from the group consisting of a polyacrylic acid, a polyacrylate, and a copolymer thereof.

公开(公告)号：US20170069938A1

公开(公告)日：2017-03-09

申请号：US15260614

申请日：2016-09-09

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tomokazu MORITA ,  Takashi KUBOKI ,  Shinsuke MATSUNO

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H01M4/38 ,  H01M4/134 ,  H01M4/131 ,  H01M10/0525 ,  H01M4/583

CPC classification number: H01M10/448 ,  H01M4/386 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/446 ,  H01M10/46 ,  H01M10/48 ,  H02J7/0021 ,  H02J7/0047 ,  H02J7/007 ,  H02J7/042 ,  H02J2007/005

Abstract: According to an embodiment, a charging condition control apparatus includes a measurement unit, an estimation unit, a calculation unit and a control unit. The measurement unit measures a present battery capacity of a secondary battery. The estimation unit estimates a present end-of-charge potential of an anode of the secondary battery based on the present battery capacity and an open circuit potential curve of the anode. The calculation unit calculates a differential potential between the present end-of-charge potential and an initial end-of-charge potential of the anode. The control unit controls a charging condition of the secondary battery according to the differential potential.

Abstract translation: 根据实施例，充电条件控制装置包括测量单元，估计单元，计算单元和控制单元。 测量单元测量二次电池的当前电池容量。 估计单元基于当前电池容量和阳极的开路电位曲线来估计二次电池的阳极的当前充电电位。 计算单元计算当前充电电位和阳极的初始充电结束电位之间的差分电位。 控制单元根据差分电位来控制二次电池的充电状态。