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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。
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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.
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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.
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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.
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公开(公告)号：US09711782B2
公开(公告)日：2017-07-18
申请号：US14645867
申请日：2015-03-12
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hikaru Yoshikawa , Hiromichi Kuriyama , Yasuaki Murashi , Hidesato Saruwatari , Dai Yamamoto
IPC: H01M4/58 , H01M4/131 , H01M10/0525 , H01M4/62 , H01M4/505 , H01M4/485 , C01G45/12 , C01G49/00 , C01G51/00 , H01M4/02
CPC classification number: H01M4/131 , C01G45/1242 , C01G49/0072 , C01G51/54 , C01P2004/51 , C01P2004/61 , H01M4/485 , H01M4/505 , H01M4/625 , H01M10/0525 , H01M2004/021 , H01M2004/028 , Y02E60/122 , Y02T10/7011
Abstract: According to one embodiment, there is provided a positive electrode including a positive electrode active material-including layer including a positive electrode active material, which includes a lithium-manganese oxide LiMn2-xMxO4, and a conductive agent. In the positive electrode active material-including layer, an average particle diameter d50 is within 2 μm to 5 μm, a particle diameter d10 and a particle diameter d90, where a cumulative frequency from a smaller side is, respectively, 10% and 90%, is within 0.5 μm to 3 μm and within 4 μm to 10 μm, respectively, in a particle size distribution. X, represented by X=(d50−d10) /d50 is within 0.4 to 0.8. Y, represented by Y=(d90−d50)/d90 is within 0.2 to 0.6.
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Patent Agency Ranking
公开(公告)号：US11183680B2
公开(公告)日：2021-11-23
申请号：US16429946
申请日：2019-06-03
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hikaru Yoshikawa , Kazuya Kuriyama , Hidesato Saruwatari , Masanori Tanaka , Tetsuro Kano
Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode. The positive electrode includes a positive electrode active material-containing layer. The positive electrode active material-containing layer includes at least one lithium-nickel composite oxide and a conductive agent. The positive electrode active material-containing layer has, in a particle size distribution obtained by a laser diffraction scattering method, an average particle diameter d50 within a range of 1 μm to 5.5 μm, a maximum particle diameter within a range of 10 μm to 100 μm, a particle diameter d10 within a range of 0.5 μm to 3 μm, and X, represented by X=(d50−d10)/d50, within a range of 0.5 to less than 1.
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公开(公告)号：US10374220B2
公开(公告)日：2019-08-06
申请号：US14477099
申请日：2014-09-04
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hikaru Yoshikawa , Kazuya Kuriyama , Hidesato Saruwatari , Masanori Tanaka , Tetsuro Kano
Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode. The positive electrode includes a positive electrode active material-containing layer. The positive electrode active material-containing layer includes at least one lithium-nickel composite oxide and a conductive agent. The positive electrode active material-containing layer has, in a particle size distribution obtained by a laser diffraction scattering method, an average particle diameter d50 within a range of 1 μm to 5.5 μm, a maximum particle diameter within a range of 10 μm to 100 μm, a particle diameter d10 within a range of 0.5 μm to 3 μm, and X, represented by X=(d50−d10)/d50, within a range of 0.5 to less than 1.
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公开(公告)号：US20190288274A1
公开(公告)日：2019-09-19
申请号：US16429946
申请日：2019-06-03
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hikaru Yoshikawa , Kazuya Kuriyama , Hidesato Saruwatari , Masanori Tanaka , Tetsuro Kano
Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode. The positive electrode includes a positive electrode active material-containing layer. The positive electrode active material-containing layer includes at least one lithium-nickel composite oxide and a conductive agent. The positive electrode active material-containing layer has, in a particle size distribution obtained by a laser diffraction scattering method, an average particle diameter d50 within a range of 1 μm to 5.5 μm, a maximum particle diameter within a range of 10 μm to 100 μm, a particle diameter d10 within a range of 0.5 μm to 3 μm, and X, represented by X=(d50−d10)/d50, within a range of 0.5 to less than 1.
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公开(公告)号：US09548495B2
公开(公告)日：2017-01-17
申请号：US14478043
申请日：2014-09-05
Applicant: Kabushiki Kaisha Toshiba
Inventor： Tetsuro Kano , Hikaru Yoshikawa , Hidesato Saruwatari , Kazuya Kuriyama
IPC: H01M4/62 , H01M4/13 , H01M4/50 , H01M4/131 , H01M4/505 , H01M4/485 , H01M4/525 , H01M10/052 , H01M4/04 , H01M4/02 , H01M4/1391 , H01M10/0525
CPC classification number: H01M4/625 , H01M4/0404 , H01M4/131 , H01M4/1391 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/623 , H01M10/052 , H01M10/0525 , H01M2004/021 , H01M2300/0037 , Y02E60/122
Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive current collector and a positive electrode material layer formed on the positive electrode current collector. The positive electrode material layer includes a positive electrode active material and a first conductive agent. In a mapping image for the positive electrode material layer, a ratio of an occupancy area of the first conductive agent to an occupancy area of the positive electrode active material is from 1.5 to 5.
Abstract translation: 根据一个实施例，提供一种非水电解质电池。 非水电解质电池包括正极，负极和非水电解质。 该正极包括在正极集电体上形成的正极集电体和正极材料层。 正极材料层包括正极活性物质和第一导电剂。 在正极材料层的映射图中，第一导电剂的占有面积与正极活性物质的占有面积的比率为1.5〜5。
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公开(公告)号：US20160204417A1
公开(公告)日：2016-07-14
申请号：US15051854
申请日：2016-02-24
Applicant: Kabushiki Kaisha Toshiba
Inventor： Dai YAMAMOTO , Hikaru Yoshikawa , Hiromichi Kuriyama , Yasuaki Murashi , Hidesato Saruwatari
IPC: H01M4/131 , H01M10/0585 , H01M10/0525 , H01M10/06 , H01M4/505 , H01M4/485
CPC classification number: H01M4/131 , H01M4/485 , H01M4/505 , H01M10/0525 , H01M10/0585 , H01M10/06 , H01M2004/021 , Y02T10/7011 , Y02T10/7016
Abstract: According to one embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte battery includes a positive electrode and a negative electrode. A positive electrode layer contains lithium-manganese composite oxide represented by a general formula of LiMn2-xMxO4. x is within the range of 0.22≦x≦0.7 and M is at least one element selected from a group consisting of Mg, Ti, Cr, Fe, Co, Zn, Al, and Ga. A negative electrode layer contains lithium titanate. A pore specific surface area of the positive electrode layer is 2 m2/g or more and less than 5 m2/g. A ratio of a capacity per pore surface area of the positive electrode to the negative electrode is within the range of 1 or more and less than 2.4.
Abstract translation: 根据一个实施例，提供非水电解质电池。 非水电解质电池包括正极和负极。 正极层含有由通式LiMn 2-x M x O 4表示的锂锰复合氧化物。 x在0.22≤n1E的范围内; x和nlE; 0.7，M是选自Mg，Ti，Cr，Fe，Co，Zn，Al和Ga中的至少一种元素。负极层含有钛酸锂。 正极层的孔比表面积为2m 2 / g以上且小于5m 2 / g。 正极与负极的每孔表面积的容量比在1以上且小于2.4的范围内。
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