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公开(公告)号：US11527751B2
公开(公告)日：2022-12-13
申请号：US16812431
申请日：2020-03-09
发明人： Ryo Hara , Dai Yamamoto , Keigo Hoshina
摘要： 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.
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公开(公告)号：US09923192B2
公开(公告)日：2018-03-20
申请号：US13968965
申请日：2013-08-16
发明人： Shinsuke Matsuno , Hidesato Saruwatari , Dai Yamamoto , Asato Kondo , Hiromichi Kuriyama , Hideki Satake , Takashi Kuboki
IPC分类号： H01M4/13 , H01M4/133 , H01M4/131 , H01M4/1391 , H01M4/485 , H01M4/62 , H01M10/052 , H01M4/02
CPC分类号： H01M4/133 , H01M4/131 , H01M4/1391 , H01M4/485 , H01M4/625 , H01M10/052 , H01M2004/021 , Y10T29/49108
摘要： 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.
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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
发明人： Hidesato SARUWATARI , Hikaru Yoshikawa , Hiromichi Kuriyama , Yasuaki Murashi , Naoki Nishio , Dai Yamamoto
IPC分类号： H01M4/505 , H01M4/485 , H01M10/0525 , H01M4/525
CPC分类号： 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
摘要： 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.
摘要翻译： 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：US20140162117A1
公开(公告)日：2014-06-12
申请号：US14180605
申请日：2014-02-14
IPC分类号： H01M10/0567 , H01M10/04 , H01M10/052
CPC分类号： H01M10/0567 , H01M4/0445 , H01M4/485 , H01M4/62 , H01M10/04 , H01M10/052 , H01M10/0525 , H01M10/4235 , Y02E60/122 , Y02P70/54 , Y10T29/49108
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US11978898B2
公开(公告)日：2024-05-07
申请号：US16807752
申请日：2020-03-03
发明人： Tetsuro Kano , Dai Yamamoto , Yuki Watanabe
IPC分类号： H01M4/505 , H01M4/02 , H01M4/131 , H01M4/36 , H01M4/525 , H01M4/62 , H01M4/66 , H01M10/0525 , H01M50/46
CPC分类号： H01M4/505 , H01M4/131 , H01M4/364 , H01M4/525 , H01M4/623 , H01M4/662 , H01M10/0525 , H01M50/46 , H01M2004/021 , H01M2004/027 , H01M2004/028
摘要： 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.
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公开(公告)号：US11967720B2
公开(公告)日：2024-04-23
申请号：US16806005
申请日：2020-03-02
IPC分类号： H01M4/62 , H01M4/02 , H01M4/04 , H01M4/1391 , H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525
CPC分类号： H01M4/625 , H01M4/0404 , H01M4/1391 , H01M4/364 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/021 , H01M2004/027 , H01M2004/028
摘要： 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.
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公开(公告)号：US11038206B2
公开(公告)日：2021-06-15
申请号：US16398383
申请日：2019-04-30
发明人： Asuna Hagiwara , Dai Yamamoto , Masanori Tanaka
IPC分类号： H01M10/0569 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M4/1391 , H01M4/485 , H01M50/20
摘要： 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).
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公开(公告)号：US10910643B2
公开(公告)日：2021-02-02
申请号：US16429308
申请日：2019-06-03
IPC分类号： 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
摘要： 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.
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公开(公告)号：US10910617B2
公开(公告)日：2021-02-02
申请号：US16387592
申请日：2019-04-18
发明人： Kazuhiro Namba , Dai Yamamoto , Akira Yajima
IPC分类号： 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
摘要： 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).
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公开(公告)号：US10483524B2
公开(公告)日：2019-11-19
申请号：US15261031
申请日：2016-09-09
IPC分类号： H01M4/131 , H01M4/485 , H01M2/16 , H01M2/10 , H01M2/14 , H01M2/34 , H01M10/0525 , H01M10/0587 , H01M10/42 , H01M4/02
摘要： 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.
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