公开(公告)号：US11527751B2

公开(公告)日：2022-12-13

申请号：US16812431

申请日：2020-03-09

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Ryo Hara ,  Dai Yamamoto ,  Keigo Hoshina

IPC: H01M4/505 ,  H01M4/131 ,  H01M4/36 ,  H01M4/525 ,  H01M10/0525 ,  H01M50/20 ,  H01M4/02

Abstract: According to one embodiment, provided is a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes lithium manganese composite oxide particles having a spinel crystal structure and lithium cobalt composite oxide particles. The negative electrode includes a titanium-containing oxide. The nonaqueous electrolyte contains a propionate ester. The battery satisfies 0.8≤p/n≤1.2 and 1≤w/s≤60. p denotes a capacity per unit area of the positive electrode. n denotes a capacity per unit area of the negative electrode. w denotes a content of the propionate ester in the nonaqueous electrolyte and is in a range of 10% by weight to 60% by weight. s denotes an average particle size of the lithium manganese composite oxide particles.

公开(公告)号：US09923192B2

公开(公告)日：2018-03-20

申请号：US13968965

申请日：2013-08-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke Matsuno ,  Hidesato Saruwatari ,  Dai Yamamoto ,  Asato Kondo ,  Hiromichi Kuriyama ,  Hideki Satake ,  Takashi Kuboki

IPC: H01M4/13 ,  H01M4/133 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/62 ,  H01M10/052 ,  H01M4/02

CPC classification number: H01M4/133 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/485 ,  H01M4/625 ,  H01M10/052 ,  H01M2004/021 ,  Y10T29/49108

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：US20160268604A1

公开(公告)日：2016-09-15

申请号：US15053437

申请日：2016-02-25

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hidesato SARUWATARI ,  Hikaru Yoshikawa ,  Hiromichi Kuriyama ,  Yasuaki Murashi ,  Naoki Nishio ,  Dai Yamamoto

IPC: H01M4/505 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/525

CPC classification number: H01M4/505 ,  C01G45/1242 ,  C01G51/42 ,  C01G53/50 ,  C01P2002/54 ,  C01P2004/61 ,  C01P2004/82 ,  C01P2006/40 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/364 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/027 ,  H01M2004/028

Abstract: According to one embodiment, a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte is provided. The positive electrode includes an active material including Li1−xMn2−y−zAlyMzO4 (−0.1≦x≦1, 0.20≦y≦0.35, 0≦z≦0.1, M is at least one metal selected from Mg, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, and Sn). The negative electrode includes an active material including a first oxide represented by Li4+aTi5O12 (−0.5≦a≦3) and a second oxide of at least one element selected from Al, Co, Cr, Cu, Fe, Mg, Ni, Zn, and Zr. The second oxide is included in an amount of from 300 ppm to 5000 ppm relative to a weight of the first oxide.

Abstract translation: 根据一个实施方案，提供了包括正极，负极和非水电解质的非水电解质电池。 正极包括含有Li1-xMn2-y-zAlyMzO4（-0.1≤x≤1,0.20≤y≤0.35,0≤z≤0.1）的活性材料，M是选自Mg，Ca，Ti，V中的至少一种金属 ，Cr，Fe，Co，Ni，Cu，Zn，Zr，Nb，Mo和Sn）。 负极包括含有由Li 4+ a Ti 5 O 12（-0.5≤a≤3）表示的第一氧化物和选自Al，Co，Cr，Cu，Fe，Mg，Ni，Zn中的至少一种元素的第二氧化物的活性物质 ，和Zr。 相对于第一氧化物的重量，第二氧化物的含量为300ppm至5000ppm。

公开(公告)号：US20140162117A1

公开(公告)日：2014-06-12

申请号：US14180605

申请日：2014-02-14

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Shinsuke Matsuno ,  Hidesato Saruwatari ,  Dai Yamamoto ,  Asato Kondo

IPC: H01M10/0567 ,  H01M10/04 ,  H01M10/052

CPC classification number: H01M10/0567 ,  H01M4/0445 ,  H01M4/485 ,  H01M4/62 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/4235 ,  Y02E60/122 ,  Y02P70/54 ,  Y10T29/49108

Abstract: According to the embodiment, there is provided a nonaqueous electrolyte secondary battery comprising a positive electrode; a negative electrode including a negative electrode active material layer; and a nonaqueous electrolyte. The negative electrode active material layer contains carbon dioxide and releases the carbon dioxide in the range of 0.01 ml to 3 ml per 1 g when heated at 400° C. for 1 minute. The nonaqueous electrolyte contains carbon dioxide of 50 ml/L to 1000 ml/L.

Abstract translation: 根据本实施方式，提供一种非水电解质二次电池，其包含正极; 负极，包括负极活性物质层; 和非水电解质。 当在400℃下加热1分钟时，负极活性物质层含有二氧化碳，并将二氧化碳释放在0.01ml至3ml的范围内。 非水电解液含有50ml / L〜1000ml / L的二氧化碳。

公开(公告)号：US11978898B2

公开(公告)日：2024-05-07

申请号：US16807752

申请日：2020-03-03

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tetsuro Kano ,  Dai Yamamoto ,  Yuki Watanabe

IPC: H01M4/505 ,  H01M4/02 ,  H01M4/131 ,  H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01M50/46

CPC classification number: H01M4/505 ,  H01M4/131 ,  H01M4/364 ,  H01M4/525 ,  H01M4/623 ,  H01M4/662 ,  H01M10/0525 ,  H01M50/46 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: A positive electrode for nonaqueous electrolyte battery includes specific peaks in pyrolysis GC/MS measurement, and includes specific pore diameters and pore volumes in a pore distribution curve attained by a mercury intrusion method.

公开(公告)号：US11967720B2

公开(公告)日：2024-04-23

申请号：US16806005

申请日：2020-03-02

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuki Watanabe ,  Dai Yamamoto ,  Toshitada Nakazawa ,  Tetsuro Kano ,  Masanori Tanaka

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: H01M4/625 ,  H01M4/0404 ,  H01M4/1391 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: An electrode according to an embodiment contains an electrode mixture layer containing an active material and a conductive assistant. In a logarithmic differential pore volume distribution by a mercury intrusion method, the electrode mixture layer satisfies: a ratio P1/P2 within a range of 2 or more and less than 8, and a ratio S1/S2 within a range of 3 or more and less than 10. P1 is a value of a maximum logarithmic differential pore volume in a pore diameter range of 0.1 μm or more and 1 μm or less. P2 is a value of a logarithmic differential pore volume of a pore diameter of 0.03 μm. S1 is an integrated value in a pore diameter range of 0.1 μm or more and 1 μm or less. S2 is an integrated value in a pore diameter range of more than 0 μm and less than 0.1 μm.

公开(公告)号：US11038206B2

公开(公告)日：2021-06-15

申请号：US16398383

申请日：2019-04-30

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

Inventor： Asuna Hagiwara ,  Dai Yamamoto ,  Masanori Tanaka

IPC: H01M10/0569 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/1391 ,  H01M4/485 ,  H01M50/20

Abstract: A nonaqueous electrolyte battery includes a container member, a positive electrode stored in the container member, a negative electrode stored in the container member, and a nonaqueous electrolyte stored in the container member. A gas composition in the container member satisfies, when a charge ratio of the nonaqueous electrolyte battery is set to 30% and the nonaqueous electrolyte battery is left stand at 35° C. for 24 hrs, 0.02 (cc/g)≤VH2≤0.1 (cc/g)  (1) 0.05≤VC3H6/VCO≤0.1  (2) 1≤VCO/VH2≤9  (3).

公开(公告)号：US10910643B2

公开(公告)日：2021-02-02

申请号：US16429308

申请日：2019-06-03

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hiromichi Kuriyama ,  Hidesato Saruwatari ,  Hideki Satake ,  Dai Yamamoto

IPC: H01M4/485 ,  H01M4/04 ,  H01M4/131 ,  H01M4/36 ,  H01M4/62 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  H01M10/0568 ,  H01M10/42 ,  H01M4/1391 ,  H01M4/02

Abstract: According to an embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte includes a negative electrode, a positive electrode and a nonaqueous electrolyte. The negative electrode includes negative electrode active material particles. The negative electrode active material particles include a spinel-type lithium titanate. The negative electrode has such a surface state that a ratio ALi/ATi of an Li atom abundance ratio ALi to a Ti atom abundance ratio ATi, according to a photoelectron spectroscopic measurement for a surface, is increased at a rate of 0.002 to 0.02 per cycle in a charge-and-discharge cycle test under the predetermined condition.

公开(公告)号：US10910617B2

公开(公告)日：2021-02-02

申请号：US16387592

申请日：2019-04-18

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

Inventor： Kazuhiro Namba ,  Dai Yamamoto ,  Akira Yajima

IPC: H01M2/12 ,  H01M4/505 ,  H01M4/36 ,  H01M2/30 ,  H01M10/0569 ,  H01M4/131 ,  H01M2/02 ,  H01M10/052 ,  H01M4/62 ,  H01M4/48 ,  H01M4/485 ,  H01M4/13 ,  H01M4/02

Abstract: According to one embodiment, a nonaqueous electrolyte secondary battery is provided. The nonaqueous electrolyte secondary battery includes a container member, a negative electrode, a positive electrode, and a nonaqueous electrolyte. The container member is provided with a gas relief structure. The negative electrode includes a negative electrode mixture layer. The negative electrode mixture layer contains a titanium-containing oxide and Mn. Abundance ratios RTi, RMn, RA and RB obtained according to an X-ray photoelectron spectroscopy spectrum of the negative electrode mixture layer satisfy the following relational expressions: 0.01≤RMn/RTi≤0.2  (1); 3≤RA/RMn≤50  (2); and 0.5≤RA/RB≤5  (3).

公开(公告)号：US10483524B2

公开(公告)日：2019-11-19

申请号：US15261031

申请日：2016-09-09

Applicant: Kabushiki Kaisha Toshiba

Inventor： Hidesato Saruwatari ,  Masataka Shikota ,  Dai Yamamoto

IPC: H01M4/131 ,  H01M4/485 ,  H01M2/16 ,  H01M2/10 ,  H01M2/14 ,  H01M2/34 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/42 ,  H01M4/02

Abstract: According to an embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, a separator sandwiched between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material having a Li-absorbing potential of 1 V vs. Li/Li+ or more. An electrical resistance of the negative electrode in a discharged state is within a range of 100 Ω·cm to 100000 Ω·cm. A pore volume ratio of pores having a pore diameter of 1 μm or more in the separator is more than 70%. The pore volume ratio is determined from a cumulative pore volume frequency curve of the separator obtained by a mercury intrusion porosimetry.