-
公开(公告)号：US20220246906A1
公开(公告)日：2022-08-04
申请号：US17621731
申请日：2020-06-24
IPC分类号： H01M4/134 , H01M10/0525 , H01M4/133 , H01M4/1393 , H01M4/1395
摘要： Electrical energy storage device (22) comprising an anode (24), a cathode (26) and electrolyte (28), whereby the anode (24) comprises particles (10, 20, 30, 40) comprising an amorphous and/or crystalline silicon-based core (12), a continuous or non-continuous first carbon-containing shell (14, 14a), and a continuous or non-continuous second carbon-containing shell (16, 16a). The second carbon-containing shell (16, 16a) has a higher density and/or a higher atomic percentage of carbon than the first carbon-containing shell (14, 16a).
-
公开(公告)号：US20230077180A1
公开(公告)日：2023-03-09
申请号：US17799304
申请日：2021-02-12
IPC分类号： H01M4/134 , H01M10/0525 , H01M4/1395 , H01M10/0567 , H01M4/04
摘要： Electrode for an energy storage device which comprises a powder of particles (26) comprising amorphous, micro- or nano-crystalline coated or uncoated silicon oxynitride having a chemical formula SiNxOy, where 0.03≤x+y
-
公开(公告)号：US20220246932A1
公开(公告)日：2022-08-04
申请号：US17621730
申请日：2020-06-24
摘要： Electrode (24) for an electrical energy storage device, which electrode (24) comprises an electrode active material layer (10) containing a plurality of particles of modified electrode active material comprising amorphous or crystalline, micro- or nano-sized stoichiometric or non-stochiometric silicon nitride each having a chemical formula of SiNx whereby 0 to 30% of said particles (12) contain one or more modifying elements selected from the group: phosphorus (P), boron (B), carbon (C), oxygen (O), sulphur (S), selenium (Se), arsenic (As), tin (Sn), magnesium (Mg), aluminium (Al), iron (Fe), germanium (Ge) or antimony (Sb), and arranged in a conductive electrode matrix (14) so as to exhibit at least one of the following: a) a chemical composition gradient, whereby the nitrogen content within the particles (12) increases or decreases with distance from a surface (16) of the electrode active material layer (10), and/or b) a particle size gradient, whereby the average particle size of the particles of modified electrode active material (12) increases or decreases with distance from a surface (16) of the modified electrode active material (10) and/or c) a chemical composition gradient, whereby said modifying element content changes through the thickness of the modified electrode active material (10).
-
-
搜索结果
3 条记录 (耗时 0.011 秒)
