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：US20170077509A1

公开(公告)日：2017-03-16

申请号：US15261540

申请日：2016-09-09

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki ISE ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/485 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/66 ,  H01M4/48 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0562 ,  H01M10/056 ,  H01M10/0565 ,  H01M10/0587 ,  H01M10/0585 ,  H01M2/10

CPC classification number: H01M4/485 ,  H01M4/366 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/056 ,  H01M2004/027 ,  H01M2220/20 ,  Y02E60/122

Abstract: According to one embodiment, an active material is provided. This active material includes active material particles each allowing lithium to be inserted thereinto and extracted therefrom in the range of 0.5 V to 2V (vs. Li+/Li), and carbon material layers at least partially coating the active material particles. The active material has a BET specific surface area S of 2 m2/g to 20 m2/g in accordance with a nitrogen adsorption method. Between the BET specific surface area S and the proportion M (mass %) of the mass of the carbon material layers to the total mass of the active material particles and carbon material layers, the ratio of S/M (m2/g) meets 0.5≦S/M≦5.

Abstract translation: 根据一个实施例，提供活性材料。 这种活性物质包括活性物质颗粒，其各自允许锂在0.5V至2V（相对于Li + / Li）的范围内插入并从其中提取，并且至少部分地涂覆活性物质颗粒的碳材料层。 根据氮吸附法，活性物质的BET比表面积S为2m 2 / g〜20m 2 / g。 在BET比表面积S和碳材料层的质量与活性物质粒子和碳材料层的总质量的比例M（质量％）之间，S / M（m 2 / g）的比率满足0.5 ≤S/M≤5。

公开(公告)号：US20150270541A1

公开(公告)日：2015-09-24

申请号：US14660286

申请日：2015-03-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki ISE ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/485 ,  H01M10/0525 ,  C30B29/32 ,  C30B29/30 ,  H01M4/131 ,  H01M4/525

Abstract: According to one embodiment, there is provided an active material includes monoclinic niobium-titanium composite oxide particles. The monoclinic niobium-titanium composite oxide particles contain a rutile type oxide.

Abstract translation: 根据一个实施方案，提供活性材料包括单斜晶铌 - 钛复合氧化物颗粒。 单斜晶铌钛复合氧化物粒子含有金红石型氧化物。

公开(公告)号：US20150129797A1

公开(公告)日：2015-05-14

申请号：US14534679

申请日：2014-11-06

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kazuki ISE ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/48 ,  H01M10/05 ,  C01G33/00

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.

Abstract translation: 本实施方式的电池用活性物质的制造方法包括：将溶解有Ti化合物的pH5以下的溶液与pH值为5的溶液混合，得到含有Ti和Nb的共沉淀物的工序 其中Nb化合物溶解，使得Ti和Nb（Nb / Ti）的摩尔比在1＆lt; NlE; Nb / Ti＆NlE; 28的范围内调节，然后再与碱溶液 pH值在8以上; 以及在635℃以上且1200℃以下的条件下燃烧共沉淀物的工序。

公开(公告)号：US20220302445A1

公开(公告)日：2022-09-22

申请号：US17446482

申请日：2021-08-31

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kazuki ISE ,  Hirofumi YASUMIISHI ,  Keigo HOSHINA ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M4/485 ,  H01M10/0525 ,  H01M10/42

Abstract: According to one embodiment, provided is an active material including a composite oxide having a tetragonal crystal structure. The composite oxide is represented by general formula LiaTibNb2−2dMc+2dO2b+5+3c. Here, M is one selected from the group consisting of W and Mo, 0≤a≤b+4+3c, 0

公开(公告)号：US20190288348A1

公开(公告)日：2019-09-19

申请号：US16122126

申请日：2018-09-05

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

Inventor： Taro FUKAYA ,  Takashi KISHI ,  Kazuki ISE ,  Kazuomi YOSHIMA ,  Yasunobu YAMASHITA ,  Yasuhiro HARADA ,  Norio TAKAMI

IPC: H01M10/44 ,  H01M10/0525 ,  H01M10/42 ,  H01M4/66

Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a negative electrode. The negative electrode includes an active material composite. The active material composite includes active material particles and a layer covering at least a portion of surfaces of the active material particles. The active material particles include titanium-containing oxide particles. The layer contains N and Si. The layer includes a first surface facing the at least the portion of surfaces of the active material particles and a second surface defining a layer thickness from the first surface. An N concentration in the layer decreases from the first surface to the second surface. A Si concentration in the layer increases from the first surface to the second surface.

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：US20160276650A1

公开(公告)日：2016-09-22

申请号：US15066142

申请日：2016-03-10

Applicant: Kabushiki Kaisha Toshiba

Inventor： Keigo HOSHINA ,  Yasuhiro HARADA ,  Kazuki ISE ,  Norio TAKAMI

IPC: H01M4/02

CPC classification number: H01M4/02 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/485 ,  H01M4/525 ,  H01M4/625 ,  H01M10/052

Abstract: According to an embodiment, a method of manufacturing an active material is provided. The active material includes particles of a composite oxide of the general formula Ti1±xNb2±yMzO7−δ and a carbon-including phase. Here, 0≦x≦0.15, 0≦y≦0.3, 0.01

Abstract translation: 根据实施例，提供了制造活性材料的方法。 活性物质包括通式Ti1±xNb2±yMzO7-δ的复合氧化物颗粒和含碳相。 这里，0≤x≤0.15,0≤y≤0.3,0.01

公开(公告)号：US20160087276A1

公开(公告)日：2016-03-24

申请号：US14957313

申请日：2015-12-02

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiroki INAGAKI ,  Yasuhiro HARADA ,  Yorikazu YOSHIDA ,  Kazuki ISE ,  Norio TAKAMI

IPC: H01M4/485 ,  H01M4/58 ,  H01M10/052 ,  H01M4/36

CPC classification number: H01M4/485 ,  H01M4/0416 ,  H01M4/0471 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/366 ,  H01M4/5825 ,  H01M10/052 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2220/20 ,  Y02E60/122 ,  Y02T10/7011

Abstract: In general, according to one embodiment, the active material for a battery contains a niobium composite oxide represented by the formula: LixM(1−y)NbyNb2O(7+δ). M represents at least one kind selected from the group consisting of Ti and Zr. X, y, and δ are numbers respectively satisfying the following: 0≦x≦6, 0≦y≦1, and −1≦δ≦1.

Abstract translation: 通常，根据一个实施方案，电池用活性物质包含由下式表示的铌复合氧化物：LixM（1-y）NbyNb2O（7 +δ）。 M表示选自Ti和Zr中的至少一种。 X，Y和δ分别满足以下的数：0＆nlE; x＆nlE; 6,0＆nlE; y＆nlE; 1和-1＆nlE;δ＆nlE; 1。

公开(公告)号：US20150086839A1

公开(公告)日：2015-03-26

申请号：US14492558

申请日：2014-09-22

Applicant: Kabushiki Kaisha Toshiba

Inventor： Hiroki INAGAKI ,  Yasuhiro HARADA ,  Yorikazu YOSHIDA ,  Kazuki ISE ,  Norio TAKAMI

IPC: H01M4/36 ,  H01M10/052 ,  C01G33/00 ,  H01M4/485

CPC classification number: H01M4/366 ,  C01G33/00 ,  C01G33/006 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/21 ,  C01P2006/40 ,  H01M4/485 ,  H01M4/625 ,  H01M10/052 ,  H01M2220/20 ,  Y02E60/122 ,  Y02P70/54

Abstract: According to one embodiment, there is provided an active substance. The active substance includes secondary particles and a carbon material phase formed on at least a part of a surface of each of the secondary particles. Each of the secondary particles is constructed by aggregated primary particles of an active material. The primary particles of the active material includes a niobium composite oxide represented by LixM(1-y)NbyNb2O(7+δ), wherein M is at least one selected from the group consisting of Ti and Zr, and x, y, and δ respectively satisfy 0≦x≦6, 0≦y≦1, and −1≈δ≦1. The secondary particles have a compression fracture strength of 10 MPa or more.

Abstract translation: 根据一个实施方案，提供了一种活性物质。 活性物质包括在每个二次粒子的表面的至少一部分上形成的二次粒子和碳材料相。 每个二次颗粒由活性材料的聚集的一次颗粒构成。 活性物质的一次粒子包括由LixM（1-y）NbyNb2O（7 +δ）表示的铌复合氧化物，其中M为选自Ti和Zr中的至少一种，x，y和δ 分别满足0＆nlE; x＆nlE; 6,0＆nlE; y＆nlE; 1和-1≈δ＆nlE; 1。 二次粒子的压缩断裂强度为10MPa以上。