公开(公告)号：US20210296653A1

公开(公告)日：2021-09-23

申请号：US17007116

申请日：2020-08-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Mitsuru ISHIBASHI ,  Wen ZHANG ,  Kazuomi Yoshima ,  Keigo HOSHINA ,  Norio TAKAMI

IPC: H01M4/66 ,  H01M4/133 ,  H01M4/131 ,  H01M4/134 ,  H01M4/36 ,  H01M2/10 ,  H01M10/0525

Abstract: According to one embodiment, an electrode includes a current collector and an active material-containing layer. The active material-containing layer includes an active material, a conductive agent, and cellulose fiber. The conductive agent includes carbon fiber. The active material-containing layer includes a first surface brought into contact with the current collector, and a second surface. 2000/mm2 or less of first agglomerates are present on the second surface. Each of the first agglomerates includes at least one of the carbon fiber or the cellulose fiber, and does not include the active material. Each of the first agglomerates has a longest diameter of 5 μm or more and a shortest diameter of 1 μm or more.

公开(公告)号：US20160190587A1

公开(公告)日：2016-06-30

申请号：US15066145

申请日：2016-03-10

Applicant: Kabushiki Kaisha Toshiba

Inventor： Keigo HOSHINA ,  Tetsuya SASAKAWA ,  Mitsuru ISHIBASHI ,  Yoshiyuki ISOZAKI ,  Norio TAKAMI

IPC: H01M4/58 ,  H01M10/0525 ,  H01M4/136 ,  H01M4/60 ,  H01M4/485

CPC classification number: H01M4/5825 ,  H01M4/136 ,  H01M4/364 ,  H01M4/485 ,  H01M4/505 ,  H01M4/5815 ,  H01M4/582 ,  H01M4/602 ,  H01M10/0525 ,  Y02T10/7011

Abstract: According to one embodiment, a nonaqueous electrolyte battery is provided. This nonaqueous electrolyte battery includes a negative electrode, a positive electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material having a Li insertion/extraction potential of 0.8 V (vs. Li/Li+) or more. The positive electrode contains a positive electrode active material represented by LiMn1-x-yFexAyPO4 (where 0

Abstract translation: 根据一个实施例，提供非水电解质电池。 该非水电解质电池包括负极，正极和非水电解质。 负极包含Li插入/提取电位为0.8V（相对于Li / Li +）以上的负极活性物质。 正极含有由LiMn1-x-yFexAyPO4表示的正极活性物质（其中0

公开(公告)号：US20180083283A1

公开(公告)日：2018-03-22

申请号：US15445726

申请日：2017-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasunobu YAMASHITA ,  Yoshiyuki ISOZAKI ,  Mitsuru ISHIBASHI ,  Kazuki ISE ,  Norio TAKAMI

IPC: H01M4/62 ,  H01M10/44 ,  H01M2/10 ,  H01M10/42 ,  H01M4/485 ,  H01M4/36

CPC classification number: H01M4/622 ,  H01M2/1077 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/366 ,  H01M4/485 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/425 ,  H01M10/44 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: According to one embodiment, a nonaqueous electrolyte battery including a negative electrode that includes a negative electrode current collector and a negative electrode mixed-materials layer is provided. The negative electrode mixed-materials layer includes a titanium-including metal oxide particle that includes a phase including a carbon material on a surface and a binder that includes an acrylic resin. The negative electrode satisfies Equation (I): α/β>6  (I) α is a peel strength (kN/m) between the negative electrode current collector and the negative electrode mixed-materials layer, and β is a cutting strength (kN/m) in the negative electrode mixed-materials layer.

公开(公告)号：US20170365857A1

公开(公告)日：2017-12-21

申请号：US15691935

申请日：2017-08-31

Applicant: Kabushiki Kaisha Toshiba

Inventor： Yoshiyuki ISOZAKI ,  Norio TAKAMI ,  Keigo HOSHINA ,  Mitsuru ISHIBASHI ,  Yasunobu YAMASHITA

IPC: H01M4/62 ,  B60L11/18 ,  H01M10/0525 ,  C09D5/24 ,  H01M2/34 ,  H01M2/10 ,  C09D133/20 ,  C09D133/02 ,  H01M2/20 ,  H01M4/131

CPC classification number: H01M4/622 ,  B60L11/1877 ,  B60L11/1879 ,  C09D5/24 ,  C09D133/02 ,  C09D133/20 ,  H01M2/1077 ,  H01M2/206 ,  H01M2/348 ,  H01M4/131 ,  H01M4/48 ,  H01M4/62 ,  H01M10/0525 ,  H01M2200/10 ,  H01M2220/20 ,  C08K3/00

Abstract: According to one embodiment, a nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode includes a negative electrode current collector and a negative electrode mixed-material layer on the negative electrode current collector. The negative electrode mixed-material layer includes a titanium-containing metal oxide and a binder including an acrylic resin. The negative electrode satisfies α/β>1.36×10−2, where “α” is a peel strength (N/m) between the current collector and the negative electrode mixed-material layer, and “β” is a cutting strength (N/m) according to a surface and interfacial cutting method in the negative electrode mixed-material layer.

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：US20150140433A1

公开(公告)日：2015-05-21

申请号：US14547534

申请日：2014-11-19

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kazuhiro YASUDA ,  Takuya IWASAKI ,  Mitsuru ISHIBASHI ,  Yorikazu YOSHIDA ,  Keigo HOSHINA

IPC: H01M4/36 ,  H01M4/587 ,  H01M4/485 ,  H01M4/131 ,  H01M4/133

CPC classification number: H01M4/366 ,  H01M4/364 ,  H01M4/483 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/027

Abstract: A battery active material of the present embodiment includes a first active material and a second active material. The first active material contains a neutral or acidic active material substrate formed of a titanium oxide or a titanate compound, and an inorganic compound layer covering a surface of the active material substrate. The second active material is basic and is formed of a titanium oxide or a titanate compound. The first active material and/or the second active material are covered with a carbon coating layer.

Abstract translation: 本实施方式的电池活性物质包括第一活性物质和第二活性物质。 第一活性物质含有由氧化钛或钛酸酯化合物形成的中性或酸性活性物质基质和覆盖活性物质基材表面的无机化合物层。 第二活性物质是碱性的并且由钛氧化物或钛酸酯化合物形成。 第一活性材料和/或第二活性材料被碳涂层覆盖。

公开(公告)号：US20140295230A1

公开(公告)日：2014-10-02

申请号：US14200660

申请日：2014-03-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Mitsuru ISHIBASHI ,  Takuya Iwasaki ,  Kazuhiro Yasuda ,  Yorikazu Yoshida ,  Hiroki Inagaki ,  Norio Takami

IPC: H01M4/131 ,  H01M10/0525 ,  H01M10/48

CPC classification number: H01M4/131 ,  H01M4/485 ,  H01M4/622 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021

Abstract: According to one embodiment, there is provided a negative electrode. The negative electrode includes a negative electrode layer. The negative electrode layer contains a titanium composite oxide and a carboxymethyl-cellulose compound. The carboxymethyl-cellulose has a degree of etherification of 1 or more and 2 or less. The negative electrode layer has a density of 2.2 g/cm3 or more.

Abstract translation: 根据一个实施例，提供了一种负极。 负极包括负极层。 负极层含有钛复合氧化物和羧甲基纤维素化合物。 羧甲基纤维素的醚化程度为1以上2以下。 负极层的密度为2.2g / cm 3以上。