公开(公告)号：US20240332639A1

公开(公告)日：2024-10-03

申请号：US18441521

申请日：2024-02-14

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Wataru UNO ,  Hayato SEKI ,  Yasuyuki HOTTA ,  Keigo HOSHINA

IPC分类号： H01M10/42 ,  B60L3/00 ,  B60L50/64 ,  H01M4/02 ,  H01M50/209 ,  H01M50/296 ,  H01M50/509 ,  H01M50/574

CPC分类号： H01M10/4235 ,  B60L3/0046 ,  B60L50/64 ,  H01M50/209 ,  H01M50/296 ,  H01M50/509 ,  H01M50/574 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20

摘要： An electrode structure for a secondary battery includes an electrode and a composite layer. In a cumulative frequency distribution of inorganic particles having average particle size of 3 μm or more with respect to a thickness direction of the composite layer, a first region is set to a range 0 or more and less than 25 and the second region is set to a range 25 or more and 100 or less. The first region is 5% or more and 40% or less of the thickness of the composite layer. Average particle size of inorganic particles satisfy a relationship of R1

公开(公告)号：US20230335861A1

公开(公告)日：2023-10-19

申请号：US17822564

申请日：2022-08-26

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yasuyuki HOTTA ,  Keigo HOSHINA ,  Kazuomi YOSHIMA ,  Shinsuke MATSUNO

IPC分类号： H01M50/446 ,  H01M50/204 ,  H01M50/249 ,  H01M50/251 ,  H01M50/284 ,  H01M10/36 ,  H01M50/46 ,  H01M50/296

CPC分类号： H01M50/446 ,  H01M10/36 ,  H01M50/204 ,  H01M50/249 ,  H01M50/251 ,  H01M50/284 ,  H01M50/296 ,  H01M50/46 ,  H01M2220/10 ,  H01M2220/20

摘要： According to one embodiment, provided is a secondary battery including a negative electrode, a positive electrode, a first composite layer joined to the negative electrode, a second composite layer joined to the positive electrode, and an aqueous electrolyte. The first composite layer includes a first principal surface on a reverse side with respect to a surface joined to the negative electrode. The second composite layer includes a second principal surface on a reverse side with respect to a surface joined to the positive electrode and facing the first principal surface. Each of the first composite layer and the second composite layer contains inorganic solid particles and a polymeric material. A peel strength σs between the first principal surface and second principal surface is 0.1 N/mm or less. The aqueous electrolyte includes water.

公开(公告)号：US20170271673A1

公开(公告)日：2017-09-21

申请号：US15259584

申请日：2016-09-08

申请人： Kabushiki Kaisha Toshiba

发明人： Yasuyuki HOTTA ,  Takashi KUBOKI ,  Shinsuke MATSUNO

IPC分类号： H01M4/583 ,  H01M4/36 ,  H01M4/48 ,  H01M10/42

CPC分类号： H01M4/583 ,  H01M4/13 ,  H01M4/364 ,  H01M4/386 ,  H01M4/483 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/4207 ,  H01M10/425 ,  H01M2004/027

摘要： An electrode material for a nonaqueous electrolyte battery of the present embodiment includes a composite particle containing a carbonaceous material. A peak half-width of d-band measured from a Raman spectrum of the carbonaceous material is at 150 cm−1 or more. A ratio Lc/La of a crystallite size Lc in a c-axis direction observed at 20° to 26° in a X-ray diffraction to a crystallite size La in an a-axis direction observed at 40° to 44° is 0.7 or less.

公开(公告)号：US20140199593A1

公开(公告)日：2014-07-17

申请号：US14211831

申请日：2014-03-14

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yasuyuki HOTTA ,  Takashi KUBOKI ,  Tomokazu MORITA

IPC分类号： H01M4/133

CPC分类号： H01M4/133 ,  H01M4/131 ,  H01M4/134 ,  H01M4/622 ,  H01M4/667 ,  H01M10/052 ,  H01M2004/027

摘要： A negative electrode for a nonaqueous electrolyte secondary battery has a current collector, a negative electrode active material layer containing a negative electrode active material and a binder that binds the negative electrode active material, and an azole compound having an amino group as a functional group at a part of an interface between the negative electrode active material layer and the current collector.

摘要翻译： 非水电解质二次电池用负极具有集电体，含有负极活性物质的负极活性物质层和结合负极活性物质的粘合剂和具有氨基作为官能团的唑化合物， 负极活性物质层和集电体之间的界面的一部分。

公开(公告)号：US20240291107A1

公开(公告)日：2024-08-29

申请号：US18458763

申请日：2023-08-30

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yasuyuki HOTTA ,  Keigo HOSHINA

IPC分类号： H01M50/451 ,  H01M4/36 ,  H01M10/0525 ,  H01M50/491

CPC分类号： H01M50/451 ,  H01M4/366 ,  H01M10/0525 ,  H01M50/491 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/20

摘要： According to one embodiment, a secondary battery provided with a negative electrode including a negative electrode active material-containing layer, a positive electrode including a positive electrode active material-containing layer, a separator located between the negative electrode and the positive electrode, and an aqueous electrolyte is provided. The separator includes a composite layer containing inorganic solid particles and a polymeric material. A particle size distribution of the inorganic solid particles in the composite layer has at least two peaks. A frequency FPS of a peak top PS of a peak on a smallest particle diameter side and a frequency FPL of a peak top PL of a peak on a largest particle diameter side in the particle size distribution have a relationship of 0.9≤FPS/FPL≤5. A porosity of the composite layer is less than both of a porosity of the negative electrode active material-containing layer and a porosity of the positive electrode active material-containing layer, and is 1% or more and less than 15%.

公开(公告)号：US20220069336A1

公开(公告)日：2022-03-03

申请号：US17180685

申请日：2021-02-19

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Hayato SEKI ,  Yasuyuki HOTTA ,  Wataru UNO ,  Shinsuke MATSUNO

IPC分类号： H01M10/04 ,  H01M10/42

摘要： According to one embodiment, an electrode structure is provided. The electrode structure includes an electrode group and a hold member. The hold member clamps the electrode group in a thickness direction of the electrode group. The electrode group satisfies a formula (1) below. m/L≤0.01  (1) Here, m is a difference Δt in a cross section which is selected from among a plurality of cross sections along the thickness direction of the electrode group. L is a maximum length of the electrode group in an in-plane direction orthogonal to the thickness direction.

公开(公告)号：US20210091416A1

公开(公告)日：2021-03-25

申请号：US16897665

申请日：2020-06-10

申请人： Kabushiki Kaisha Toshiba

发明人： Hayato SEKI ,  Wataru UNO ,  Yasuyuki HOTTA ,  Shinsuke MATSUNO

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

摘要： 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：US20150086873A1

公开(公告)日：2015-03-26

申请号：US14478125

申请日：2014-09-05

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yasuyuki HOTTA ,  Takashi KUBOKI ,  Tomokazu MORITA ,  Takayuki FUKASAWA ,  Kenji ESSAKI ,  Norikazu OSADA

IPC分类号： H01M4/36 ,  H01M10/052 ,  H01M4/70

摘要： A negative electrode for nonaqueous electrolyte secondary battery of an embodiment includes a current collector, and a negative electrode mixture layer arranged on the current collector. The negative electrode mixture layer includes a negative electrode active material, a conductive material, and a binder. The negative electrode active material is composite particles including a carbonaceous substance, a silicon oxide phase in the carbonaceous substance, and a silicon phase including crystalline silicon in the silicon oxide phase. The negative electrode active material satisfies d1/d0≧0.9 where an average thickness of the mixture layer is d0, and a maximum thickness of a single particle of the composite particles in a vertical direction, the particle occupying the mixture layer, to a surface of the current collector is d1.

摘要翻译： 实施方式的非水电解质二次电池用负极包括集电体和设置在集电体上的负极混合层。 负极复合层包括负极活性物质，导电性物质和粘合剂。 负极活性物质是包含碳质物质，碳质物质中的氧化硅相和氧化硅相中含有结晶硅的硅相的复合粒子。 负极活性物质满足d1 /d0≥0.9，其中混合层的平均厚度为d0，复合颗粒在垂直方向上的单个颗粒的最大厚度，占据混合层的颗粒， 集电极为d1。

公开(公告)号：US20140295249A1

公开(公告)日：2014-10-02

申请号：US14210775

申请日：2014-03-14

申请人： Kabushiki Kaisha Toshiba

发明人： Yasuyuki HOTTA ,  Takashi KUBOKI ,  Tomokazu MORITA

IPC分类号： H01M4/13

CPC分类号： H01M4/13 ,  H01M4/622 ,  H01M10/052 ,  H01M2004/021 ,  Y02T10/7011

摘要： An electrode for battery has an electrode mixture containing a binder and an active material particle selected from at least one of a carbonaceous material, a metal particle and a metal oxide particle formed on a current collector. When cutting strength of an interface between the current collector and the electrode mixture is represented by “a” and cutting strength in a horizontal direction within the electrode mixture is represented by “b”, the “a” and “b” satisfy a relation of a/b

摘要翻译： 电池用电极具有含有粘合剂的电极混合物和选自形成在集电体上的碳质材料，金属粒子和金属氧化物粒子中的至少一种的活性物质粒子。 当集电体和电极混合物之间的界面的切割强度由“a”表示，电极混合物内的水平方向的切割强度由“b”表示时，“a”和“b”满足关系式 a / b <1。

公开(公告)号：US20140284306A1

公开(公告)日：2014-09-25

申请号：US14295657

申请日：2014-06-04

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Koji ASAKAWA ,  Toshiro HIRAOKA ,  Yoshihiro AKASAKA ,  Yasuyuki HOTTA

IPC分类号： C08J9/26

CPC分类号： C08J9/26 ,  B82Y10/00 ,  B82Y30/00 ,  C03C17/007 ,  C03C2217/425 ,  C03C2217/479 ,  C03C2218/33 ,  C08J2333/12 ,  C08J2383/16 ,  C23F1/30 ,  G03F7/0002 ,  G11B5/74 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/0029 ,  H01G11/30 ,  H01G11/56 ,  H01J9/02 ,  H01J9/025 ,  H01L21/02118 ,  H01L21/02126 ,  H01L21/02203 ,  H01L21/02211 ,  H01L21/02216 ,  H01L21/02282 ,  H01L21/02337 ,  H01L21/02348 ,  H01L21/0337 ,  H01L21/31695 ,  H01M2/145 ,  H01M2/1653 ,  H01M4/131 ,  H01M4/133 ,  H01M4/8605 ,  H01M4/96 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/026 ,  H01M8/1011 ,  H01M10/0525 ,  Y02E60/13 ,  Y02E60/523 ,  Y02P70/56 ,  Y10S438/945 ,  Y10S438/947 ,  Y10S977/90 ,  Y10T428/24149

摘要： A pattern forming material contains a block copolymer or graft copolymer and forms a structure having micro polymer phases, in which, with respect to at least two polymer chains among polymer chains constituting the block copolymer or graft copolymer, the ratio between N/(Nc−No) values of monomer units constituting respective polymer chains is 1.4 or more, where N represents total number of atoms in the monomer unit, Nc represents the number of carbon atoms in the monomer unit, No represents the number of oxygen atoms in the monomer unit.

摘要翻译： 图案形成材料含有嵌段共聚物或接枝共聚物，并形成具有微聚合物相的结构，其中，关于构成嵌段共聚物或接枝共聚物的聚合物链中的至少两个聚合物链，N /（Nc- 否）构成各聚合物链的单体单元的值为1.4以上，其中N表示单体单元中的总原子数，Nc表示单体单元中的碳原子数，No表示单体单元中的氧原子数 。