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公开(公告)号：US11217793B2
公开(公告)日：2022-01-04
申请号：US16804546
申请日：2020-02-28
发明人： Yuta Kanai , Tetsuya Sasakawa , Keigo Hoshina , Yasuhiro Harada , Norio Takami
摘要： According to one embodiment, an electrode is provided. The electrode includes the active material-containing layer formed on the current collector and including active material particles. The particle size distribution chart obtained by the laser diffraction scattering method for the active material particles includes the first region and the second region. The first particle group included in the first region includes the first active material particles, and the second particle group included in the second region includes second active material particles. The carbon coverage of the first particle group is higher than the carbon coverage of the second particle group.
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公开(公告)号：US20210083268A1
公开(公告)日：2021-03-18
申请号：US16804372
申请日：2020-02-28
发明人： Tomoe KUSAMA , Tetsuya Sasakawa , Kazuomi Yoshima , Tomoko Sugizaki , Wen Zhang , Yosuhiro Harada , Norio Takami
摘要： According to one embodiment, an electrode is provided. The electrode includes an active material-containing layer. The active material-containing layer includes: an active material including a titanium-containing composite oxide; inorganic solid particles having lithium ion conductivity; and carbon fiber. The active material-containing layer has a first peak indicating a maximum log differential pore volume in a log differential pore volume distribution curve according to mercury porosimetry. A pore diameter PD at the first peak is 0.01 μm to 0.1 μm. The first peak has a full width at half maximum of 0.05 μm or less.
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3.发明授权公开(公告)号：US10862118B2
公开(公告)日：2020-12-08
申请号：US16117978
申请日：2018-08-30
IPC分类号： H01M6/42 , H01M4/485 , C01G33/00 , H01M4/36 , H01M10/0525 , H01M2/30 , H01M2/10 , B60L50/64 , H01M4/02
摘要： An active material includes an Nb2TiO7 phase and at least one Nb-rich phase selected from an Nb10Ti2O29 phase, an Nb14TiO37 phase, and an Nb24TiO64 phase. The active material satisfies a peak intensity ratio represented by the following Formula (1): 0
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公开(公告)号：US20180083284A1
公开(公告)日：2018-03-22
申请号：US15459242
申请日：2017-03-15
CPC分类号： H01M4/628 , H01M4/131 , H01M4/366 , H01M4/485 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M10/052 , H01M10/425 , H01M10/44 , H01M2004/027 , H01M2220/20 , H02J7/1461
摘要： According to one embodiment, an electrode is provided. The electrode includes a current collector and an electrode layer. The electrode layer is disposed on the current collector and includes lithium fluoride. A first content of lithium fluoride in a first region is 0.02% by weight or more and less than 2% by weight. The first region is adjacent to an interface between the electrode layer and the current collector, and has a first thickness equal to 20% with respect to a thickness of the electrode layer. A second content of lithium fluoride in a second region is from 2% by weight to 10% by weight. The second region is adjacent to a surface on a reverse side of the electrode layer, and has the first thickness.
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公开(公告)号：US20160036093A1
公开(公告)日：2016-02-04
申请号：US14659985
申请日：2015-03-17
发明人： Keigo HOSHINA , Takashi Kishi , Shinsuke Matsuno , Tetsuya Sasakawa , Yoshiyuki Isozaki , Norio Takami , Hidesato Saruwatari
IPC分类号： H01M10/0569 , H01M4/485 , H01M4/58 , H01M4/52 , H01M4/505 , H01M4/136 , H01M10/0525 , H01M4/131
CPC分类号： H01M10/0569 , H01M2/0262 , H01M4/131 , H01M4/136 , H01M4/485 , H01M4/505 , H01M4/523 , H01M4/525 , H01M4/5825 , H01M10/0525 , H01M2004/027 , H01M2004/028 , H01M2300/0028 , H01M2300/0037 , Y02T10/7011
摘要： According to one embodiment, a nonaqueous electrolyte battery that includes a positive electrode, a negative electrode, and a nonaqueous electrolyte is provided. The positive electrode includes a positive electrode active material. The negative electrode includes a negative electrode active material that absorbs and releases lithium at 0.4 V vs. Li/Li+ or higher. The nonaqueous electrolyte is dissolved in a nonaqueous solvent that includes γ-butyrolactones substituted by a hydrocarbon substituent at an alpha position.
摘要翻译： 根据一个实施方式，提供了包括正极，负极和非水电解质的非水电解质电池。 正极包括正极活性物质。 负极包括负极活性物质，其以0.4V相对于Li / Li +以上吸收和释放锂。 将非水电解质溶解在包含在α位被烃取代基取代的γ-丁内酯的非水溶剂中。
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公开(公告)号：US20220352512A1
公开(公告)日：2022-11-03
申请号：US17679005
申请日：2022-02-23
摘要： According to one embodiment, a slurry composition includes an active material, a conductive agent, a resin material, and a solvent comprising water. The active material includes niobium titanium-containing composite oxide particles. In a volume-based cumulative frequency distribution of particle sizes based on a particle size distribution of the slurry composition according to a laser diffraction-scattering method, a peak is positioned within a range of 0.8 μm to 3 μm, and a percentage of cumulative frequency up to a particle size of 1 μm from a smaller particle size is in a range of 20% to 35%.
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公开(公告)号：US11139476B2
公开(公告)日：2021-10-05
申请号：US16559260
申请日：2019-09-03
发明人： Tetsuya Sasakawa , Yasuhiro Harada , Norio Takami
IPC分类号： H01M4/505 , H01M4/131 , H01M10/0525 , H01M10/42 , B60L50/64 , B60L7/10 , H01M4/525 , H01M4/46 , H01M50/20 , H01M4/134 , H01M4/36 , H01M4/62 , H01M4/02 , H01M50/509
摘要： According to one embodiment, there is provided an active material represented by a general formula Lix(NiaCobMncMd)1−s(Nb1−tTat)sO2. Here, M is at least one selected from the group consisting of Li, Ca, Mg, Al, Ti, V, Cr, Zr, Mo, Hf, and W, and 1.0≤x≤1.3, 0≤a≤0.9, 0≤b≤1.0, 0≤c≤0.8, 0≤d≤0.5, a+b+c+d=1, 0.005≤s≤0.3, and 0.0005≤t≤0.1 are satisfied.
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公开(公告)号：US20210083298A1
公开(公告)日：2021-03-18
申请号：US16787232
申请日：2020-02-11
发明人： Tomoko Sugizaki , Tetsuya Sasakawa , Kazuomi Yoshima , Tomoe Kusama , Yasuhiro Harada , Norio Takami
IPC分类号： H01M4/66 , H01M10/0525 , H01M4/505 , H01M4/525
摘要： According to one embodiment, an electrode is provided. The electrode includes a current collector, a first layer formed on the current collector, and a second layer formed on at least part of the first layer. The first layer contains a monoclinic niobium titanium composite oxide. The second layer contains lithium titanate having a spinel structure. A porosity P2 of the second layer is within a range from 30% to 80%.
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公开(公告)号：US10141575B2
公开(公告)日：2018-11-27
申请号：US15459242
申请日：2017-03-15
IPC分类号： H01M4/485 , H01M4/505 , H01M4/525 , H01M4/58 , H01M4/62 , H01M10/42 , H01M10/44 , H02J7/14 , H01M4/131 , H01M4/36 , H01M10/052 , H01M4/02
摘要： According to one embodiment, an electrode is provided. The electrode includes a current collector and an electrode layer. The electrode layer is disposed on the current collector and includes lithium fluoride. A first content of lithium fluoride in a first region is 0.02% by weight or more and less than 2% by weight. The first region is adjacent to an interface between the electrode layer and the current collector, and has a first thickness equal to 20% with respect to a thickness of the electrode layer. A second content of lithium fluoride in a second region is from 2% by weight to 10% by weight. The second region is adjacent to a surface on a reverse side of the electrode layer, and has the first thickness.
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公开(公告)号：US12074340B2
公开(公告)日：2024-08-27
申请号：US17179480
申请日：2021-02-19
IPC分类号： H01M50/46 , H01M4/485 , H01M4/62 , H01M10/0525 , H01M10/0565 , H01M10/42
CPC分类号： H01M50/46 , H01M4/485 , H01M4/62 , H01M10/0525 , H01M10/0565 , H01M10/425 , H01M2010/4271 , H01M2220/20 , H01M2300/0082 , H01M2300/0085
摘要： According to one embodiment, an electrode group is provided. The electrode group includes a positive electrode, a negative electrode, and a gel polymer layer interposed between the positive electrode and the negative electrode. At least a part of the negative electrode is opposed to the positive electrode. The gel polymer layer is formed of a gel electrolyte composed of a polymer material, an organic solvent and a lithium salt, and a sheet base member which supports the gel electrolyte, or the gel polymer layer is formed of only the gel electrolyte.
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