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公开(公告)号：EP4443542A2
公开(公告)日：2024-10-09
申请号：EP24158890.4
申请日：2024-02-21
发明人： FURUYA, Ryosuke
IPC分类号： H01M4/134 , H01M4/36 , H01M4/38 , H01M4/62 , H01M10/0562 , H01M10/052 , H01M4/02
CPC分类号： H01M2004/02720130101 , H01M4/134 , H01M4/362 , H01M4/386 , H01M4/62 , H01M10/052 , H01M10/0562 , H01M2300/006820130101
摘要： An object of the present disclosure is to provide a negative electrode active material layer, in which electrical conductivity of silicon active material particles is improved by decreasing the amount of oxygen atoms in the silicon active material particles while electrical resistance is less likely to deteriorate even when charging capacity of a battery is low, and a solid-state secondary battery comprising such a negative electrode active material layer. The negative electrode active material layer of the present disclosure contains silicon active material particles and solid electrolyte particles, wherein an amount of oxygen atoms in the silicon active material particles is less than 5.0% by mass, and an average particle size of the solid electrolyte particles is 1.0 µm or less and/or a ratio of an average particle size of the solid electrolyte particles relative to an average particle size of the silicon active material particles is 0.9 or less.
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公开(公告)号：EP4443536A1
公开(公告)日：2024-10-09
申请号：EP23216815.3
申请日：2023-12-14
申请人： SK On Co., Ltd.
发明人： CHUNG, Da Bin , KIM, Hyo Mi , JANG, Hwan Ho , KIM, Moon Sung , RYU, Sang Baek , PARK, Da Hye , BANG, Sang In , YOOK, Seung Hyun , HAN, Jun Hee
IPC分类号： H01M4/13 , H01M4/36 , H01M4/38 , H01M4/587 , H01M4/62 , H01M10/052 , H01M4/133 , H01M4/134 , H01M4/1395 , H01M4/02
CPC分类号： Y02E60/10 , H01M4/622 , H01M2004/02120130101 , H01M4/366 , H01M2004/02720130101 , H01M4/386 , H01M4/587 , H01M10/052 , H01M4/133 , H01M4/134 , H01M4/36 , H01M4/62 , H01M4/625 , H01M4/38 , H01M4/364 , H01M4/1395 , H01M4/13
摘要： An anode for a lithium secondary battery includes a material layer configured to serve as a current collector, a first anode mixture layer formed on at least one surface of the material layer, and a second anode mixture layer formed on the first anode mixture layer. The first anode mixture layer includes a first silicon-based active material, the second anode mixture layer includes a second silicon-based active material, and a particle volume fraction ratio (RPV) for each layer according to Equation 1 expressed as RPV = VD1/VD2 is greater than 1. In Equation 1, VD1 is a volume fraction(%) of particles having a particle diameter of 2.5 µm or less in the first silicon-based active material, and VD2 is a volume fraction(%) of particles having a particle diameter of 2.5 µm or less in the second silicon-based active material.
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公开(公告)号：EP4441809A1
公开(公告)日：2024-10-09
申请号：EP22818128.5
申请日：2022-12-01
发明人： MAAS, Joris Pieter Valentijn , SIVARAJ, Rohanraj , GEERTSEN, Tijmen Rudolf , AHN, Yiseop , DIDDEN, Arjen Peter
CPC分类号： H01M4/134 , H01M4/1395 , H01M2004/02720130101 , H01M2004/02120130101 , H01M4/0428 , H01M4/0404 , H01M4/386 , Y02E60/10
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公开(公告)号：EP4439706A2
公开(公告)日：2024-10-02
申请号：EP24166464.8
申请日：2024-03-26
IPC分类号： H01M4/134 , H01M4/40 , H01M10/052 , H01M10/0562 , H01M4/1395 , H01M10/44 , H01M4/36 , H01M4/02
CPC分类号： H01M10/052 , H01M10/0562 , H01M4/134 , H01M4/405 , H01M2300/006820130101 , H01M2004/02720130101 , H01M4/1395 , H01M10/446
摘要： An all-solid-state battery (10) that utilizes a precipitation-dissolution reaction of metallic Li as an anode reaction includes a cathode (CA) including a cathode current collector (1) and a cathode active material layer (2), an anode (AN) including at least an anode current collector (3), and a solid electrolyte layer (SE) disposed between the cathode (CA) and the anode (AN). The anode (AN) includes a compound layer (4) containing a first compound expressed by Li-Mg-X on a face of the anode current collector (3), the face of the anode current collector (3) facing the solid electrolyte layer (SE), X in Li-Mg-X is an X element, and the X element is at least one selected from Zn, Sn, Ag, Al, Zr, Ni, or P.
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5.发明公开
公开(公告)号：EP4439703A1
公开(公告)日：2024-10-02
申请号：EP23208996.1
申请日：2023-11-10
申请人： AESC Japan Ltd.
发明人： HUANG, Peng , LI, Ruonan , SUN, Zhonggui , SUN, Huayu
IPC分类号： H01M4/134 , H01M4/133 , H01M4/1393 , H01M4/1395 , H01M4/36 , H01M4/38 , H01M4/587
CPC分类号： H01M4/386 , H01M4/587 , H01M4/1395 , H01M4/366 , H01M4/134 , H01M2004/02720130101 , H01M4/1393 , H01M4/133
摘要： A silicon-carbon composite material, a preparation method thereof, an electrochemical device, and an electronic apparatus are provided. The silicon-carbon composite material includes a carbon substrate, a silicon material attached to a surface of the carbon substrate and/or an inner portion of the carbon substrate, and a nonmetal element doped on the carbon substrate. Covalent bond energy formed by the nonmetal element and a carbon element in is 180 eV ≦ E1 ≦ 700 eV or 130 eV ≦ E2 ≦ 210 eV.
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公开(公告)号：EP4364849A3
公开(公告)日：2024-10-02
申请号：EP24163995.4
申请日：2012-07-24
申请人： OneD Material, Inc.
发明人： CAO, Wanqing , ROBBINS, Virginia , ZHU, Yimin
CPC分类号： H01M4/134 , C01B33/02 , C01B33/029 , C01P2004/1620130101 , C01P2004/6420130101 , B01J21/18 , B01J23/72 , B01J37/0211 , C30B11/12 , C30B29/60 , C01B33/021 , C30B29/06 , Y02E60/10
摘要： Methods for producing nanostructures from copper-based catalysts on porous substrates, particularly silicon nanowires on carbon-based substrates for use as battery active materials, are provided. Related compositions are also described. In addition, novel methods for production of copper-based catalyst particles are provided. Methods for producing nanostructures from catalyst particles that comprise a gold shell and a core that does not include gold are also provided.
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公开(公告)号：EP4145561B1
公开(公告)日：2024-09-11
申请号：EP21797917.8
申请日：2021-04-22
IPC分类号： H01M4/13 , H01M4/62 , H01M10/42 , H01M4/66 , H01M4/139 , H01M4/04 , H01M10/052 , H01M10/0585 , H01M4/02 , H01M4/134 , H01M4/1395 , H01M4/36 , H01M4/38 , H01M4/485 , H01M10/0525
CPC分类号： H01M4/13 , H01M4/02 , H01M10/052 , H01M4/04 , H01M4/139 , H01M4/62 , H01M10/42 , H01M10/0585 , H01M4/66 , Y02P70/50 , Y02E60/10 , H01M4/366 , H01M4/134 , H01M4/36 , H01M4/1395 , H01M10/0525 , H01M4/485 , H01M4/382 , H01M4/667 , H01M4/0404 , H01M2004/02720130101 , H01M10/4235 , H01M4/0471 , H01M4/661
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公开(公告)号：EP4418385A2
公开(公告)日：2024-08-21
申请号：EP23219570.1
申请日：2023-12-21
申请人： SK On Co., Ltd.
发明人： KIM, In Ha , PARK, Sung Jun , JO, Byoung Wook , JO, Yeong Min
IPC分类号： H01M10/04 , H01M4/133 , H01M4/134 , H01M4/1391 , H01M4/1393 , H01M4/1395
CPC分类号： H01M4/139 , H01M10/0404 , H01M4/133 , H01M4/134 , H01M4/1395 , H01M4/1391 , H01M4/1393
摘要： A negative electrode, and a method and apparatus for manufacturing a negative electrode, are provided. The apparatus for manufacturing a negative electrode includes a pair of magnet plates including an upper magnet plate and a lower magnet plate respectively disposed above and below a plane (e.g., X-Y plane) in which the negative electrode moves in a direction (e.g., X-axis direction). In the magnet plate, first and second vertical unit magnets and first and second horizontal unit magnets with magnetic force lines having different directions are arranged, and a direction of magnetic force lines of the unit magnets changes by 90 degrees in a second direction (e.g., Y-axis direction) . The upper and lower magnet plates have opposite polarities, and the upper and lower magnet plates have constant magnetic force in the first direction and a magnetic force changing in the second direction.
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