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公开(公告)号：US09966607B2
公开(公告)日：2018-05-08
申请号：US15519977
申请日：2015-10-20
发明人： Yusuke Sugiyama , Nobuhiro Goda , Masakazu Murase , Takeshi Kondo , Yuta Kawamoto , Tomokuni Abe , Yuta Nakagawa , Jun Kaneda
IPC分类号： H01M4/62 , H01M10/0525 , C08F8/32 , C09D133/02 , C09D5/24 , H01M4/38 , H01M4/48 , H01M4/02 , C08F8/48 , H01G11/38 , H01M4/133 , H01M4/134 , H01M4/04 , H01M4/587
CPC分类号： H01M4/622 , C08F8/32 , C08F8/48 , C09D5/24 , C09D133/02 , H01G11/38 , H01M4/0404 , H01M4/0471 , H01M4/133 , H01M4/134 , H01M4/386 , H01M4/483 , H01M4/587 , H01M10/0525 , H01M2004/027 , Y02E60/13
摘要： A polymer compound for use as a binder for a negative electrode of an electrical storage device is formed by condensing polyacrylic acid and a multifunctional amine represented by the following formula (1), in which Y represents a straight chain alkyl group having 1 to 4 carbon atoms, a phenylene group, or an oxygen atom, and R1 and R2 each independently represent one or more hydrogen atoms, methyl groups, ethyl groups, trifluoromethyl groups, or methoxy groups.
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公开(公告)号：US10476073B2
公开(公告)日：2019-11-12
申请号：US15506825
申请日：2015-08-04
IPC分类号： H01M4/36 , H01M4/38 , H01M4/587 , H01M10/0525 , C01B33/021 , B01J13/04 , C01B32/05 , H01M4/02
摘要： A production process for carbon-coated silicon material includes the step of: heating CaSi2 and a halogen-containing polymer at a temperature being a carbonization temperature or more of the halogen-containing polymer in a state where the CaSi2 and the halogen-containing polymer coexist.
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3.发明授权公开(公告)号：US10230100B2
公开(公告)日：2019-03-12
申请号：US14761999
申请日：2013-12-25
发明人： Yusuke Sugiyama , Masataka Nakanishi , Nobuhiro Goda , Tomohiro Niimi , Masakazu Murase , Takeshi Kondo , Shigenori Koishi , Hiroshi Hirate , Yoshihiro Nakagaki , Mutsumi Takahashi
摘要： A negative-electrode active material is used for a negative electrode, the negative-electrode active material including: agglomerated particles including nanometer-size silicon produced by heat treating a lamellar polysilane having a structure in which multiple six-membered rings constituted of a silicon atom are disposed one after another, and expressed by a compositional formula, (SiH)n; and a carbon layer including amorphous carbon, and covering at least some of the agglomerated particles to be composited therewith. An electric storage apparatus including the same is not only able to reduce the irreversible capacity, but also able to inhibit the generation of “SEI.”
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公开(公告)号：US10833325B2
公开(公告)日：2020-11-10
申请号：US15773672
申请日：2016-11-01
发明人： Yusuke Sugiyama , Hirotaka Sone , Nobuhiro Goda , Takashi Mohri
IPC分类号： H01M4/38 , H01M4/04 , H01M4/62 , H01M4/1395 , H01M4/36 , H01M4/505 , H01M4/66 , H01M10/0525 , H01M10/052 , H01M4/02 , C01B33/02
摘要： A negative electrode active material is composed of a silicon material coated with a carbon layer containing a Group 4 to 6 metal.A method for producing a negative electrode active material includes a step of decomposing a compound containing the Group 4 to 6 metal and a carbon source by heating in the presence of a silicon material, the compound, and the carbon source.
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公开(公告)号：US10538625B2
公开(公告)日：2020-01-21
申请号：US16076033
申请日：2017-01-30
发明人： Takeshi Kondo , Yusuke Sugiyama , Nobuhiro Goda
IPC分类号： C08G69/26 , C08L77/06 , H01G11/06 , H01G11/38 , H01M4/62 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M4/1395 , H01G11/86 , C08F8/32 , H01M4/02
摘要： A polymer compound is formed by condensing a polyacrylic acid having some of carboxyl groups converted into a lithium salt with a polyfunctional amine represented by the following general formula (1). A chain structure constituted by the polyacrylic acid has free carboxyl groups and carboxyl groups converted into a lithium salt. Y is a straight-chain alkyl group having 1 to 4 carbon atoms, a phenylene group, or an oxygen atom. R1 and R2 are each independently one or more hydrogen atoms, a methyl group, an ethyl group, a trifluoromethyl group, or a methoxy group.
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公开(公告)号：US09935310B2
公开(公告)日：2018-04-03
申请号：US14407489
申请日：2013-06-25
IPC分类号： H01M4/134 , C01B33/00 , H01M4/485 , H01M4/38 , H01M4/1395 , H01M10/0525 , H01M4/04 , H01M4/13 , H01M4/139 , H01M10/052 , H01M4/02
CPC分类号： H01M4/134 , C01B33/00 , H01M4/0447 , H01M4/0459 , H01M4/13 , H01M4/139 , H01M4/1395 , H01M4/386 , H01M4/485 , H01M10/052 , H01M10/0525 , H01M2004/021 , H01M2004/027 , H01M2220/30
摘要： Providing a silicon-containing material having a novel structure being distinct from the structure of conventional silicon oxide disproportionated to use.A silicon-containing material according to the present invention includes at least the following: a continuous phase including silicon with Si—Si bond, and possessing a bubble-shaped skeleton being continuous three-dimensionally; and a dispersion phase including silicon with Si—O bond, and involved in an area demarcated by said continuous phase to be in a dispersed state.
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公开(公告)号：US10800660B2
公开(公告)日：2020-10-13
申请号：US15761166
申请日：2016-10-27
IPC分类号： C01B33/021 , C01B33/06 , H01M4/134 , H01M4/36 , H01M4/38 , H01M4/62 , H01M10/0525 , H01M4/02
摘要： A method for producing a silicon material, the method including: a step of heating CaSi2 powder in a range of 400 to 1000° C.; a step of reacting acid with the CaSi2 powder having been subjected to the step of heating CaSi2 powder in a range of 400 to 1000° C., to obtain a layered silicon compound; and a step of heating the layered silicon compound at not less than 300° C.
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公开(公告)号：US10686223B2
公开(公告)日：2020-06-16
申请号：US15024418
申请日：2014-09-25
发明人： Atsuo Yamada , Yuki Yamada , Kohei Mase , Tomoyuki Kawai , Yoshihiro Nakagaki , Yuki Hasegawa , Nobuhiro Goda
IPC分类号： H01M10/0568 , H01M4/66 , H01M10/0569 , H01M10/0567 , H01M4/131 , H01M4/133 , H01M4/505 , H01M4/525 , H01M4/587 , H01M4/62 , H01M10/0525 , H01M4/02
摘要： To provide a nonaqueous electrolyte secondary battery that suppresses elution of Al from a positive electrode current collector formed of aluminum or an aluminum alloy, and is superior in thermal characteristics and input-output characteristics. Provided is a nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode has a positive electrode current collector formed of aluminum or an aluminum alloy. The electrolytic solution contains a metal salt and an organic solvent having a heteroelement. Regarding an intensity of a peak derived from the organic solvent in a vibrational spectroscopy spectrum of the electrolytic solution, Is>Io is satisfied when an intensity of an original peak of the organic solvent is represented as Io and an intensity of a peak resulting from shifting of the original peak is represented as Is.
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9.发明授权公开(公告)号：US10333139B2
公开(公告)日：2019-06-25
申请号：US15106397
申请日：2014-11-14
IPC分类号： H01M4/36 , H01G11/34 , H01M4/04 , H01M4/1395 , H01M4/38 , H01M4/587 , H01G11/24 , H01G11/30 , H01G11/86 , H01M4/133 , H01M4/134 , H01M4/1393 , H01M10/0525 , H01M4/48 , H01M10/052 , H01M12/00 , H01M4/02
摘要： Provided is a negative electrode active material including complex particles formed of: nano silicon aggregated particles produced by heating a layered polysilane represented by a composition formula of (SiH)n and having a structure in which multiple six-membered rings formed from silicon atoms are connected; and a composited carbon layer formed from an amorphous carbon and at least covering one portion of the aggregated particles. A mean particle diameter D50 of the aggregated particles is within a range of 0.2 μm to 30 μm, and a mean particle diameter D50 of the complex particles is within a range of 0.5 μm to 40 μm.
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10.发明申请公开(公告)号：US20140242458A1
公开(公告)日：2014-08-28
申请号：US14179068
申请日：2014-02-12
发明人： Tomokuni ABE , Hiroki Oshima , Yuya Sato , Kisena Yoshida , Nobuhiro Goda , Manabu Miyoshi
IPC分类号： H01M4/36 , H01M4/1391 , H01M4/04 , H01M4/60 , H01M4/48
CPC分类号： H01M4/366 , H01M4/0404 , H01M4/1391 , H01M4/48 , H01M4/602 , Y02E60/122 , Y02P70/54
摘要： Provided is a negative electrode for a nonaqueous secondary battery which achieves both suppression of reductive decomposition of an electrolyte or an electrolytic solution and suppression of an increase in resistance. Also provided are a method for producing such a negative electrode and a nonaqueous secondary battery employing such a negative electrode. A polymer coating layer is formed so as to coat at least part of surfaces of negative electrode active material particles containing silicon oxide (SiOx; 0.5≦x≦1.6). The polymer coating layer contains a cationic polymer having a positive zeta potential under neutral conditions. Since silicon oxide has a negative zeta potential, a thin uniform coating layer can be formed owing to Coulomb's force.
摘要翻译： 本发明提供一种能够抑制电解质或电解液的还原分解，抑制电阻增加的非水系二次电池用负极。 还提供了这种负极的制造方法和使用这种负极的非水二次电池。 形成聚合物涂层，以便涂覆含有氧化硅的负极活性物质颗粒的表面的至少一部分（SiOx; 0.5＆amp; NlE; x＆nlE; 1.6）。 聚合物涂层含有在中性条件下具有正ζ电位的阳离子聚合物。 由于氧化硅具有负ζ电位，所以由于库仑力可以形成薄均匀的涂层。
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