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：US09979020B2

公开(公告)日：2018-05-22

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: H01M4/50 ,  H01M4/48 ,  H01M4/505 ,  H01M4/485 ,  C01G45/12 ,  C01G51/00 ,  C01G53/00 ,  H01M10/0525 ,  H01M4/02

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.

公开(公告)号：US11670764B2

公开(公告)日：2023-06-06

申请号：US17019777

申请日：2020-09-14

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hikaru Yoshikawa ,  Akira Yajima ,  Yasuaki Murashi ,  Naoki Nishio ,  Kazuhiro Namba ,  Natsuki Nakamura

IPC: H01M4/48 ,  H01M4/62 ,  H01M4/36 ,  H01M50/46 ,  H01M10/0525 ,  H01M10/05 ,  H01M4/02 ,  H01M50/466

CPC classification number: H01M4/481 ,  H01M4/364 ,  H01M4/483 ,  H01M4/624 ,  H01M10/05 ,  H01M10/0525 ,  H01M50/46 ,  H01M50/466 ,  H01M2004/021 ,  H01M2004/025 ,  H01M2004/027 ,  H01M2004/028

Abstract: According to a first embodiment, there is provided a positive electrode including a positive electrode active material-containing layer containing a first active material having a spinel type crystal structure. The positive electrode satisfies the formulas (1) to (3) when combined with a negative electrode including a negative electrode active material-containing layer containing a first active material having a spinel type crystal structure: 0.5≤a1/b1≤1.5 (1); 0.4≤a2/b2≤1.4 (2); and 0.5≤a3/b3≤2.3 (3), where a1 and b1 are a pore volume per 1 g weight, a2 and b2 are a pore specific surface area, and a3 and b3 are a median diameter in pore distribution, for the positive and negative electrode active material-containing layers, respectively.

公开(公告)号：US09947923B2

公开(公告)日：2018-04-17

申请号：US15051035

申请日：2016-02-23

Applicant: KABUSHIKI KAISHA TOSHIBA

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

IPC: H01M4/50 ,  H01M4/00 ,  H01M4/505 ,  H01M2/02 ,  H01M4/131 ,  H01M4/36 ,  H01M4/485 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/58

CPC classification number: H01M4/505 ,  H01M2/0285 ,  H01M2/0287 ,  H01M4/131 ,  H01M4/364 ,  H01M4/485 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  Y02T10/7011

Abstract: The nonaqueous electrolyte battery according to one embodiment includes a positive electrode and a negative electrode. The positive electrode contains a positive electrode active material containing manganese-containing composite oxide. The negative electrode contains a negative electrode active material selected from the group consisting of titanium oxide and titanium-containing composite oxide. A ratio p/n of a capacity p per unit area of the positive electrode to a capacity n per unit area of the negative electrode is in the range of 0.8 or more and 1 or less.