摘要:
A mesoporous silicon compound includes a mesoporous silicon phase, a metal silicide phase, and a carbon phase. The metal silicide is embedded in mesoporous silicon particles, the surfaces of which are coated with a carbon layer. A weight ratio of elemental silicon to the metal element is from 2:3 to 900:1. The pores of the mesoporous silicon particles have a size distribution from two nanometers to eighty nanometers.
摘要:
A silicon/carbon composite comprises mesoporous silicon particles and carbon coating provided on the silicon particles, wherein the silicon particles have two pore size distribution of 2-4 nm and 20-40 nm. A process of preparing the silicon/carbon composite comprises the steps of preparing mesoporous silicon particles via a mechanochemical reaction between SiCl4 and Li33Si4 under ball milling and subsequent thermal treatment and washing process, and coating the mesoporous silicon particles with carbon. An anode for lithium ion battery comprises the silicon/carbon composite. A lithium ion battery comprises the silicon/carbon composite.
摘要翻译:硅/碳复合材料包括在硅颗粒上提供的中孔硅颗粒和碳涂层,其中硅颗粒具有2-4nm和20-40nm的两个孔径分布。 制备硅/碳复合材料的方法包括以下步骤:在球磨和随后的热处理和洗涤过程之间通过SiCl 4和Li 33 Si 4之间的机械化学反应制备介孔硅颗粒,并用碳涂覆介孔硅颗粒。 锂离子电池的阳极包括硅/碳复合材料。 锂离子电池包括硅/碳复合材料。
摘要:
An electrode is formed of a ternary composite of silicon, carbon, and carbon filter foil, for lithium ion batteries. Also described is a method for manufacturing silicon/carbon/carbon fiber foil composite electrode for lithium batteries, including: mixing silicon and an organic substance capable of forming carbon after heat treatment, in a solvent, to form a slurry; immersing the carbon fiber foil in said slurry until the slurry coats on and penetrates into the carbon fiber foil; and heating the carbon fiber foil, which has been coated and penetrated with the slurry, in an inert gas atmosphere or all inert gas atmosphere mixed with a reductive gas at a temperature of at least 400° C. for at least 2 hours.
摘要:
The present invention relates to a sulfur-carbon composite made from microporous-carbon-coated carbon nanotube (CNT@MPC) composites, in particular a sulfur-carbon composite, which comprises a carbon-carbon composite substrate (CNT@MPC) and sulfur loaded into said carbon-carbon composite substrate (CNT@MPC); as well as a method for preparing said sulfur-carbon composite, an electrode material and a lithium-sulfur battery comprising said sulfur-carbon composite.
摘要:
A mesoporous silicon compound includes a mesoporous silicon phase, a metal silicide phase, and a carbon phase. The metal silicide is embedded in mesoporous silicon particles, the surfaces of which are coated with a carbon layer. A weight ratio of elemental silicon to the metal element is from 2:3 to 900:1. The pores of the mesoporous silicon particles have a size distribution from two nanometers to eighty nanometers.
摘要:
High corrosion resistant sintered NdFeB magnets are provided with a composition by mass % of NdxRx1Fe100-(x+x1+y+y1+z)TyMy1Bz, where 24≦x≦33, 0≦x1≦15, 1.43≦y≦16.43, 0.1≦y1≦0.6, 0.91≦z≦1.07, R is one or more selected from the group consisting of Dy, Tb, Pr, Ce and Gd, T is one or more selected from the group consisting of Co, Cu and Al, M is one or more selected from the group consisting of Nb, Zr, Ti, Cr and Mo, and M is distributed within the grain boundary phase of the NdFeB magnets.
摘要翻译:高耐腐蚀烧结钕铁硼磁体的质量分数为NdxRx1Fe100-(x + x1 + y + y1 + z)TyMy1Bz,其中24 @ x @ 33,0 @ x1 @ 15,1.43 @ y @ 16.43,0.1 @ y1 @ 0.6,0.91 @ z @ 1.07,R是选自Dy,Tb,Pr,Ce和Gd中的一种或多种,T是选自Co,Cu和Al中的一种或多种,M 是选自Nb,Zr,Ti,Cr和Mo中的一种以上,M分布在NdFeB磁体的晶界相内。
摘要:
A silicon/carbon composite comprises mesoporous silicon particles and carbon coating provided on the silicon particles, wherein the silicon particles have two pore size distribution of 2-4 nm and 20-40 nm. A process of preparing the silicon/carbon composite comprises the steps of preparing mesoporous silicon particles via a mechanochemical reaction between SiCl4 and Li33Si4 under ball milling and subsequent thermal treatment and washing process, and coating the mesoporous silicon particles with carbon. An anode for lithium ion battery comprises the silicon/carbon composite. A lithium ion battery comprises the silicon/carbon composite.
摘要翻译:硅/碳复合材料包括在硅颗粒上提供的介孔硅颗粒和碳涂层,其中硅颗粒具有2-4nm和20-40nm的两个孔径分布。 制备硅/碳复合材料的方法包括以下步骤:在球磨和随后的热处理和洗涤过程之间通过SiCl 4和Li 33 Si 4之间的机械化学反应制备介孔硅颗粒,并用碳涂覆介孔硅颗粒。 锂离子电池的阳极包括硅/碳复合材料。 锂离子电池包括硅/碳复合材料。
摘要:
The present invention relates to a sulfur-carbon composite, comprising a pyrolysis microporous carbon sphere (PMCS) substrate and sulfur loaded into said pyrolysis microporous carbon sphere (PMCS) substrate; as well as a method for preparing said sulfur-carbon composite, an electrode material and a lithium-sulfur battery comprising said sulfur-carbon composite.
摘要:
Provided is an all-solid-state lithium rechargeable cell, comprising: a) a cathode, wherein the cathode comprises: a1) a composite of VS4 and graphene; and a2) a solid catholyte; and b) a lithium-based anode. In particular, the all-solid-state lithium rechargeable cell of the present disclosure may exhibit high initial discharge capacities, high initial Coulombic efficiencies, good reversible capacities, excellent cycling stabilities, high energy densities as well as outstanding safeties.
摘要:
The present invention relates to a sulfur-carbon composite made from microporous-carbon-coated carbon nanotube (CNT@MPC) composites, in particular a sulfur-carbon composite, which comprises a carbon-carbon composite substrate (CNT@MPC) and sulfur loaded into said carbon-carbon composite substrate (CNT@MPC); as well as a method for preparing said sulfur-carbon composite, an electrode material and a lithium-sulfur battery comprising said sulfur-carbon composite.