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公开(公告)号：US10559813B2
公开(公告)日：2020-02-11
申请号：US15565006
申请日：2016-04-05
发明人： Atsushi Saito , Tatsuya Eguchi , Manabu Miyoshi , Jun Kaneda , Tomokuni Abe , Hiroki Oshima
IPC分类号： H01M4/134 , H01M4/587 , H01M4/36 , H01M4/62 , H01M4/133 , H01M4/38 , H01M10/0525 , H01M10/052 , H01M4/02
摘要： The negative electrode includes a current collector, a negative electrode active material layer arranged on a surface of the current collector, and a protective layer arranged on a surface of the negative electrode active material layer. The negative electrode active material layer includes a first negative electrode active material having an aspect ratio defined as “a”/“b” to fall in a range of from two or more to eight or less when a length of the major axis is defined “a” and a length of the minor axis is defined “b.” The protective layer includes a ceramic powder.
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公开(公告)号：US09774039B2
公开(公告)日：2017-09-26
申请号：US14351605
申请日：2012-10-05
发明人： Megumi Yamamoto , Manabu Miyoshi , Hideaki Shinoda
IPC分类号： H01M4/48 , H01M4/62 , H01M4/13 , H01M4/505 , H01M4/525 , H01M4/36 , H01M4/587 , H01M10/0569 , H01M10/0525
CPC分类号： H01M4/625 , H01M4/13 , H01M4/364 , H01M4/48 , H01M4/483 , H01M4/505 , H01M4/525 , H01M4/587 , H01M10/0525 , H01M10/0569 , Y02E60/122
摘要： It is an assignment to provide the following: a negative-electrode material for electric storage device, a negative electrode for electric storage device, and an electric storage device, negative-electrode material, negative electrode and electric storage device in which SiOx is used as a negative-electrode active material, which excel in the conductivity, and which can inhibit the discharge capacity from declining; as well as a vehicle having the electric storage device on-board. In the negative-electrode material for electric storage device, acetylene black is used as a conductive additive; and, when a sum of contents of SiOx, graphite, conductive additive and a binder resin is taken as 100% by mass, the contents are made so as to be as follows: a content of a negative-electrode active material including the SiOx and graphite is 70% by mass or more; the content of the SiOx is from 17% by mass or more and 40% by mass or less; a sum of the contents of the conductive additive and binder resin is from 8% by mass or more to 20% by mass or less; and the content of the conductive additive is from 6% by mass or more to 12% by mass or less.
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3.发明授权公开(公告)号：US09577246B2
公开(公告)日：2017-02-21
申请号：US14186201
申请日：2014-02-21
摘要： Provided is a negative electrode active material containing SiOx and carbonaceous particles containing graphite and having both good discharge capacity and good electric conductivity. Also provided is a negative electrode using the negative electrode active material and a nonaqueous electrolyte secondary battery. When the carbonaceous particles have an average particle diameter D50 of α (μm) and a BET specific surface area of β (m2/g), the α and the β satisfy the following Formulae (1) and (2). β≦−(12/18)α+12 (1) 5≦α≦15 (2).
摘要翻译： 提供含有SiO x的负极活性物质和含有石墨的碳质粒子，具有良好的放电容量和良好的导电性。 还提供了使用负极活性物质和非水电解质二次电池的负极。 当碳质颗粒的平均粒径D50为α（μm）且BET比表面积为＆bgr; （m2 / g），α和＆bgr; 满足下列公式（1）和（2）。 ＆bgr;＆nlE; - （12/18）α+ 12（1）5＆nlE;α＆nlE; 15（2）
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4.发明申请公开(公告)号：US20140308588A1
公开(公告)日：2014-10-16
申请号：US14357413
申请日：2012-10-03
发明人： Yuichi Hirakawa , Manabu Miyoshi , Hideaki Shinoda , Takayuki Kato , Keiichi Hayashi , Kayo Mizuno , Yoshikatsu Kawabata , Megumi Yamamoto
IPC分类号： H01M4/38 , H01M10/0525 , H01M10/0569
CPC分类号： H01M4/134 , H01M4/0409 , H01M4/0471 , H01M4/131 , H01M4/38 , H01M4/381 , H01M4/386 , H01M4/387 , H01M4/483 , H01M4/505 , H01M4/525 , H01M4/623 , H01M4/625 , H01M4/661 , H01M4/70 , H01M10/0525 , H01M10/0569 , H01M2004/021 , H01M2220/20 , H01M2220/30 , H01M2300/004 , Y02T10/7011
摘要： A negative-electrode stuff has negative-electrode active-material particles including: an element being capable of sorbing and desorbing lithium ions, and being capable of undergoing an alloying reaction with lithium; or/and an elementary compound being capable of undergoing an alloying reaction with lithium. The negative-electrode active-material particles includes particles whose particle diameter is 1 μm or more in an amount of 85% by volume or more of them when the entirety is taken as 100% by volume, exhibit a BET specific surface area that is 6 m2/g or less, and exhibits a “D50” that is 4.5 μm or more.
摘要翻译： 负极材料具有负极活性物质颗粒，其包括：能够吸附和解吸锂离子的元素，并且能够与锂发生合金化反应; 或/和能够与锂进行合金化反应的元素化合物。 负极活性物质粒子的粒径为1μm以上的粒子的总量为85体积％以上的粒子为100体积％，BET比表面积为6 m2 / g以下，表现出4.5μm以上的“D50”。
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公开(公告)号：US10424791B2
公开(公告)日：2019-09-24
申请号：US14987859
申请日：2016-01-05
IPC分类号： H01M4/04 , H01M4/62 , H01M10/0525 , H01M4/38 , H01M4/1395 , H01M4/02
摘要： It is an assignment to be solved to provide an electrode for secondary battery, electrode in which the active material is suppressed from coming off or falling down from the electricity collector, and that has excellent cyclic performance.It is characterized in that, in an electrode for secondary battery, the electrode being manufactured via an application step of applying a binder resin and an active material onto a surface of electricity collector, said hinder resin is an alkoxysilyl group-containing resin that has a structure being specified by formula (I): wherein “R1” is an alkyl group whose number of carbon atoms is from 1 to 8; “R2” is an alkyl group or alkoxyl group whose number of carbon atoms is from 1 to 8; and “q” is an integer of from 1 to 100.
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6.发明授权Negative electrode for nonaqueous secondary battery, method for producing the same, and nonaqueous secondary battery 有权非水系二次电池用负极及其制造方法以及非水系二次电池公开(公告)号：US09590239B2
公开(公告)日：2017-03-07
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
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，以涂覆含有氧化硅（SiOx;0.5≤x≤1.6）的负极活性物质颗粒的表面的至少一部分。 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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7.发明申请SILICON-CONTAINING MATERIAL AND SECONDARY-BATTERY ACTIVE MATERIAL INCLUDING SILICON-CONTAINING MATERIAL 有权含硅材料和二次电池活性材料，其中包含含硅材料公开(公告)号：US20150147658A1
公开(公告)日：2015-05-28
申请号：US14407489
申请日：2013-06-25
IPC分类号： H01M4/134 , H01M4/04 , H01M4/1395 , H01M10/0525
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.
摘要翻译： 提供具有新颖结构的含硅材料不同于被歧化使用的常规氧化硅的结构。 根据本发明的含硅材料至少包括以下：包含具有Si-Si键的硅的连续相，并且具有三维连续的气泡形骨架; 以及包含具有Si-O键的硅的分散相，并且涉及由所述连续相划分为分散状态的区域。
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公开(公告)号：US10270099B2
公开(公告)日：2019-04-23
申请号：US15555104
申请日：2016-03-04
发明人： Yuuhi Sato , Manabu Miyoshi , Tatsuya Eguchi , Atsushi Saito
IPC分类号： H01M4/38 , H01M4/58 , H01M10/052 , H01M10/0566 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/62 , H01M4/02
摘要： A positive electrode for lithium-ion secondary battery includes: a lithium metallic oxide with a lamellar rock-salt structure including nickel, cobalt, and manganese; and a phosphate/carbon composite including an olivine-type phosphate compound at least some of which is coated with carbon partially. A rate of a volume resistivity of the phosphate/carbon composite to a volume resistivity of the lithium metallic oxide is 0.034 or less. The olivine-type phosphate compound is expressed by a general formula: LiMhPO4 (where “M” is at least one element selected from the group consisting of Mn, Fe, Co, Ni, Cu, Mg, Zn, V, Ca, Sr, Ba, Ti, Al, Si, B, Te and Mo, and 0
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公开(公告)号：US09819009B2
公开(公告)日：2017-11-14
申请号：US15370579
申请日：2016-12-06
发明人： Yuichi Hirakawa , Manabu Miyoshi , Hideaki Shinoda , Takayuki Kato , Keiichi Hayashi , Kayo Mizuno , Yoshikatsu Kawabata , Megumi Yamamoto
IPC分类号： H01M4/134 , H01M4/38 , H01M10/0525 , H01M10/0569 , H01M4/04 , H01M4/131 , H01M4/48 , H01M4/505 , H01M4/525 , H01M4/62 , H01M4/66 , H01M4/70 , H01M4/02
CPC分类号： H01M4/134 , H01M4/0409 , H01M4/0471 , H01M4/131 , H01M4/38 , H01M4/381 , H01M4/386 , H01M4/387 , H01M4/483 , H01M4/505 , H01M4/525 , H01M4/623 , H01M4/625 , H01M4/661 , H01M4/70 , H01M10/0525 , H01M10/0569 , H01M2004/021 , H01M2220/20 , H01M2220/30 , H01M2300/004 , Y02T10/7011
摘要： A lithium-ion secondary battery including a negative electrode including negative-electrode active-material particles including an element being capable of sorbing and desorbing lithium ions, and being capable of alloying with lithium; or/and an elementary compound including an element that is capable of alloying with lithium; a positive electrode including a positive-electrode active material that enables Li ions to be sorbed therein and desorbed therefrom; and an electrolytic solution made by dissolving an electrolyte in a solvent. The negative-electrode active-material particles include particles whose particle diameter is 1 μm or more in an amount of 85% by volume or more thereof when the entirety of said negative-electrode active-material particles, which are included in said negative electrode, is taken as 100% by volume, and the negative-electrode active-material particles exhibit a “D10” being 3 μm or more. The solvent in the electrolytic solution includes a fluorinated ethylene carbonate.
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公开(公告)号：US09716267B2
公开(公告)日：2017-07-25
申请号：US15124766
申请日：2014-12-26
发明人： Tatsuya Eguchi , Takeshi Maki , Manabu Miyoshi , Yuuhi Sato , Jun Kaneda , Yusuke Yamamoto , Takahiro Sugioka
IPC分类号： H01M4/36 , H01M4/62 , H01M4/505 , H01M4/58 , H01M10/0525 , H01M4/525 , H01M4/13 , H01M4/139 , H01M4/04 , H01M10/052 , H01M4/02
CPC分类号： H01M4/364 , H01M4/0404 , H01M4/0433 , H01M4/13 , H01M4/139 , H01M4/366 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/625 , H01M10/052 , H01M10/0525 , H01M2004/028
摘要： A parameter for producing a positive electrode having excellent safety, and a positive electrode active material layer satisfying the parameter. The positive electrode active material layer includes a first positive electrode active material, a second positive electrode active material having a lower charge/discharge potential than the first positive electrode active material, and an additive. When the first positive electrode active material tap density is defined as dt1, the second positive electrode active material tap density is defined as dt2, a true density of the additive is defined as d3, a mass percentage of the first positive electrode active material is defined as Wt1, a mass percentage of the second positive electrode active material is defined as Wt2, a mass percentage of the additive is defined as Wt3, and a porosity of the positive electrode active material layer is defined as p, the positive electrode active material layer satisfies (1−p)×(Wt1/dt1)/((Wt1/dt1)+(Wt2/dt2)+(Wt3/d3))
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