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公开(公告)号：US20200044235A1
公开(公告)日：2020-02-06
申请号：US16523052
申请日：2019-07-26
发明人： Tetsuya SASAKAWA , Wen ZHANG , Yasuhiro HARADA , Norio TAKAMI
IPC分类号： H01M4/131 , H01M10/052
摘要： An electrode for a secondary battery comprises a current collector; and an active material-containing layer has active materials which comprise titanium-containing composite oxide having an orthorhombic crystal structure and represented by a general formula Li2+aM12−bTi6−cM2dO14+δ;wherein the active material-containing layer has intensity ratio Ia/Ib in an X-ray diffraction pattern of the active material-containing layer, the Ia and the Ib are obtained by powder X-ray diffraction method using Cu-Kα ray, the intensity ratio is within a range of 0.5≤Ia/Ib≤2, the Ia is the strongest intensity of a diffraction peak among diffraction peaks appearing within a range of 42°≤2θ≤44°, and the Ib is the strongest intensity of a diffraction peak among diffraction peaks appearing within a range of 44°
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公开(公告)号：US20170271668A1
公开(公告)日：2017-09-21
申请号：US15455700
申请日：2017-03-10
发明人： Keigo HOSHINA , Wen ZHANG , Yasuhiro HARADA , Norio TAKAMI
IPC分类号： H01M4/485 , H01M10/0525 , H01M10/42
CPC分类号： H01M4/485 , B60L11/18 , B60L11/1879 , C01G23/003 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/425 , H01M2004/027 , H01M2220/20 , Y02E60/122
摘要： According to one embodiment, there is provided an active material. The active material includes particles of a Na-containing niobium titanium composite oxide having an orthorhombic crystal structure. An intensity ratio I1/I2 is within a range of 0.12≦I1/I2≦0.25 in an X-ray diffraction pattern of the active material, according to X-ray diffraction measurement using a Cu-Kα ray. I1 is a peak intensity of a peak P1 that is present within a range where 2θ is 27° to 28° in the X-ray diffraction pattern of the active material. I2 is a peak intensity of a peak P2 that is present within a range where 2θ is 23° to 24° in the X-ray diffraction pattern of the active material.
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公开(公告)号：US20170018807A1
公开(公告)日：2017-01-19
申请号：US15124011
申请日：2014-03-14
发明人： Takashi KISHI , Wen ZHANG , Miho MARUYAMA
IPC分类号： H01M10/0569 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0568
CPC分类号： H01M10/0569 , H01M2/36 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0567 , H01M10/0568 , H01M10/058 , H01M2220/20
摘要： A nonaqueous electrolyte solution secondary battery of the embodiment includes an exterior material, a nonaqueous electrolyte solution, a positive electrode, a negative electrode and a separator sandwiched between the positive electrode and the negative electrode. The nonaqueous electrolyte solution is charged in the exterior material. The nonaqueous electrolyte solution contains at least one of sulfone-based compounds represented by formula 1, a partially fluorinated ether represented by a molecular formula of formula 2, and at least one of lithium salts. The positive electrode is housed in the exterior material. The positive electrode contains a composite oxide represented by L1-xMn1.5-yNi0.5-zMy+zO4 as a positive electrode active material (wherein 0≦x≦1, 0≦(y+z)≦0.15, and M represents one, or two or more selected from Mg, Al, Ti, Fe, Co, Ni, Cu, Zn, Ga, Nb, Sn, Zr and Ta). The negative electrode is housed in the exterior material.
摘要翻译： 本实施方式的非水电解液二次电池包括外部材料，非水电解液，正极，负极和夹在正极和负极之间的隔膜。 将非水电解质溶液装入外部材料。 非水电解质溶液含有由式1表示的砜系化合物，由式2的分子式表示的部分氟化的醚和锂盐中的至少一种中的至少一种。 正极容纳在外部材料中。 正极含有由L1-xMn1.5-yNi0.5-zMy + zO4表示的复合氧化物作为正极活性物质（其中0≤x≤1,0≤（y + z）≤0.15，M表示1 ，或选自Mg，Al，Ti，Fe，Co，Ni，Cu，Zn，Ga，Nb，Sn，Zr和Ta中的两种以上）。 负极容纳在外部材料中。
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4.发明申请ACTIVE MATERIAL FOR BATTERY, NONAQUEOUS ELECTROLYTE BATTERY, AND BATTERY PACK 审中-公开电池，非电解电池电池和电池组的活性材料公开(公告)号：US20150079438A1
公开(公告)日：2015-03-19
申请号：US14488480
申请日：2014-09-17
发明人： Hiroki INAGAKI , Wen ZHANG , Takuya IWASAKI , Norio TAKAMI
CPC分类号： H01M4/366 , C01G23/047 , C01P2002/72 , C01P2002/82 , C01P2006/40 , H01M2/0287 , H01M4/485 , H01M4/58 , H01M4/5825 , H01M4/623 , H01M10/425
摘要： In general, according to one embodiment, an active material for a battery includes a monoclinic β-type titanium oxide or a monoclinic β-type titanium complex oxide. In the active material for a battery, carbonate ions are disposed on at least a part of the surface thereof.
摘要翻译： 通常，根据一个实施方案，用于电池的活性材料包括单斜晶系型氧化钛或单斜晶系型钛复合氧化物。 在用于电池的活性材料中，碳酸根离子设置在其表面的至少一部分上。
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5.发明申请公开(公告)号：US20170365842A1
公开(公告)日：2017-12-21
申请号：US15689583
申请日：2017-08-29
发明人： Keigo HOSHINA , Wen ZHANG , Yusuke NAMIKI , Yoshiyuki ISOZAKI , Norio TAKAMI
IPC分类号： H01M4/131 , H01M4/62 , H01M10/0525 , H01M4/02 , C07C255/08 , G01N21/35
CPC分类号： H01M4/131 , C07C255/08 , G01N21/552 , G01N2021/3595 , H01M4/13 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/621 , H01M4/622 , H01M10/0525 , H01M10/0567 , H01M2004/021 , H01M2004/027
摘要： A nonaqueous electrolyte battery electrode according to an embodiment includes a current collector and a mixed layer formed on one surface or both surfaces of the current collector. The mixed layer includes an active material and a binding agent. The ratio I2/I1 of the highest peak intensity I2 in peaks appearing in the wavelength range of 1400 to 1480 cm−1 to the highest peak intensity I1 in peaks appearing in the wavelength range of 2200 to 2280 cm−1 is 10 or more and 20 or less in an infrared absorption spectrum measured according to a total reflection measurement method. Alternatively, in the mixed layer, the ratio I3/I2 of the highest peak intensity I3 in peaks appearing in the wavelength range of 1650 to 1850 cm−1 to the highest peak intensity I2 in peaks appearing in the wavelength range of 1400 to 1480 cm−1 is 0.1 or more and 0.8 or less in an infrared absorption spectrum measured according to a total reflection measurement method.
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公开(公告)号：US20210296631A1
公开(公告)日：2021-09-23
申请号：US17007147
申请日：2020-08-31
发明人： Keigo HOSHINA , Wen ZHANG , Tetsuya SASAKAWA , Yasuhiro HARADA , Norio TAKAMI
IPC分类号： H01M4/131 , H01M4/134 , H01M4/583 , H01M2/10 , H01M10/0525
摘要： According to one embodiment, provided is a secondary battery including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a niobium-titanium composite oxide having fluorine atoms on at least part of a surface the niobium-titanium composite oxide. An abundance ratio AF of fluorine atoms, an abundance ratio ATi of titanium atoms, and an abundance ratio ANb of niobium atoms on a surface of the negative electrode according to X-ray photoelectron spectroscopy satisfy a relationship of 3.5≤AF/(ATi+ANb)≤50.
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公开(公告)号：US20170271666A1
公开(公告)日：2017-09-21
申请号：US15455160
申请日：2017-03-10
发明人： Takashi KISHI , Kazuomi YOSHIMA , Wen ZHANG , Yasuhiro HARADA , Norio TAKAMI
IPC分类号： H01M4/485 , H01M2/16 , H01M10/0565 , H01M10/42
CPC分类号： H01M4/485 , H01M2/1646 , H01M2/166 , H01M2/1673 , H01M2/1686 , H01M4/131 , H01M4/1391 , H01M4/366 , H01M4/625 , H01M10/0431 , H01M10/0525 , H01M10/0565 , H01M10/0587 , H01M10/4235 , H01M10/425 , H01M2004/021 , H01M2004/027 , H01M2200/20 , H01M2220/20 , H01M2300/0085 , Y02E60/122 , Y02T10/7011
摘要： According to one embodiment, a nonaqueous electrolyte battery is provided. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode including a negative electrode active material layer, a separator layer, an intermediate region, and a gel nonaqueous electrolyte. The separator layer and the intermediate region hold at least a part of the gel nonaqueous electrolyte. The nonaqueous electrolyte battery satisfies a volume ratio VA/VB of 5 or more. VA is a volume of the intermediate region. VB is an average volume of gaps among the particles of the niobium-and-titanium-containing composite oxide in the negative electrode active material layer.
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8.发明申请公开(公告)号：US20170237068A1
公开(公告)日：2017-08-17
申请号：US15584759
申请日：2017-05-02
发明人： Hiroki INAGAKI , Wen ZHANG , Yasuhiro HARADA , Keigo HOSHINA , Yuki OTANI , Norio TAKAMI
IPC分类号： H01M4/485 , C01G23/04 , H01M10/0525 , H01M10/0565 , H01M4/62 , C01G23/00 , H01M10/056
CPC分类号： H01M4/485 , B60L50/16 , B60L50/61 , B60L50/66 , B60L58/27 , B60L2260/28 , C01G23/002 , C01G23/003 , C01G23/005 , C01G23/04 , C01G53/50 , C01P2002/72 , C01P2004/03 , C01P2004/61 , C01P2004/62 , C01P2006/40 , H01M2/0287 , H01M4/131 , H01M4/505 , H01M4/525 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M10/056 , H01M10/0565 , H01M10/425 , H01M2004/021 , H01M2004/027 , H01M2220/20 , Y02E60/122 , Y02T10/6217 , Y02T10/7005 , Y02T10/7055 , Y02T10/7077
摘要： According to one embodiment, there is provided an active material for a battery. The active material includes secondary particle which contains primary particles of a monoclinic β-type titanium composite oxide having an average primary particle diameter of 1 nm to 10 μm. The secondary particle has an average secondary particle diameter of 1 μm to 100 μm. The secondary particle has compression fracture strength of 20 MPa or more.
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公开(公告)号：US20150086841A1
公开(公告)日：2015-03-26
申请号：US14489677
申请日：2014-09-18
发明人： Norio TAKAMI , Hiroki INAGAKI , Wen ZHANG
CPC分类号： H01M10/0525 , H01M2/30 , H01M4/485 , H01M4/661 , H01M4/662 , H01M4/667 , Y02E60/122 , Y02T10/7011
摘要： According to one embodiment, a nonaqueous electrolyte battery including a positive electrode, a negative electrode, a separator, a copper-containing member, and a nonaqueous electrolyte is provided. The negative electrode includes a negative electrode current collector and a negative electrode active material-containing layer. The negative electrode current collector includes aluminum or aluminum alloy. The negative electrode active material-containing layer is formed on the negative electrode current collector. The copper-containing member includes copper or copper alloy. The copper-containing member is electrically connected to the negative electrode current collector to prevent from over-discharge.
摘要翻译： 根据一个实施方案，提供了包括正极，负极，隔膜，含铜构件和非水电解质的非水电解质电池。 负极包括负极集电体和负极活性物质含有层。 负极集电体包括铝或铝合金。 负极活性物质含有层形成在负极集电体上。 含铜构件包括铜或铜合金。 含铜部件与负极集电体电连接，防止过放电。
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公开(公告)号：US20210296653A1
公开(公告)日：2021-09-23
申请号：US17007116
申请日：2020-08-31
发明人： Mitsuru ISHIBASHI , Wen ZHANG , Kazuomi Yoshima , Keigo HOSHINA , Norio TAKAMI
摘要： According to one embodiment, an electrode includes a current collector and an active material-containing layer. The active material-containing layer includes an active material, a conductive agent, and cellulose fiber. The conductive agent includes carbon fiber. The active material-containing layer includes a first surface brought into contact with the current collector, and a second surface. 2000/mm2 or less of first agglomerates are present on the second surface. Each of the first agglomerates includes at least one of the carbon fiber or the cellulose fiber, and does not include the active material. Each of the first agglomerates has a longest diameter of 5 μm or more and a shortest diameter of 1 μm or more.
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