| 改进溶剂热法制备锂离子电池负极材料用多级孔Co3O4微球 |
| |
| 引用本文： | 冯艳,曹彩玉,曾婧,王日初,彭超群,王小锋.改进溶剂热法制备锂离子电池负极材料用多级孔Co3O4微球[J].中国有色金属学会会刊,2022,32(4):1253-1260. |
| |
| 作者姓名： | 冯艳 曹彩玉 曾婧 王日初 彭超群 王小锋 |
| |
| 摘 要： | 将溶剂热法与高温煅烧法相结合制备多级孔Co3O4微球,采用XRD、SEM、TEM和电化学测试等技术研究该多级孔Co3O4微球的结构和性能.结果表明:当煅烧温度为700℃时,所合成的Co3O4(Co3O4-700)是由丰富的纳米颗粒(50～200 nm)和大量孔洞(～100 nm)构成的微米级微球(1～2μm);该Co3...
|
| 关 键 词： | Co3O4 锂离子电池 多孔结构 微球 煅烧 |
| 收稿时间： | 7 February 2021 |
Hierarchical porous Co3O4 spheres fabricated by modified solvothermal method as anode material in Li-ion batteries |
| |
| Affiliation: | 1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;2. Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional Materials, Changsha 410083, China;3. School of Metallurgy and Environment, Central South University, Changsha 410083, China |
| |
| Abstract: | Hierarchical porous Co3O4 spheres were synthesized by a solvothermal method followed by high-temperature calcination. XRD, SEM, TEM and electrochemical tests were used to study the structure and performance of the hierarchical porous Co3O4 spheres. The results show that the Co3O4 synthesized at a calcination temperature of 700 °C (Co3O4-700) is micro-sized spheres (1–2 μm) consisting of plentiful nanoparticles (50–200 nm) and numerous pores (~100 nm). Due to its numerous porous morphology, the Co3O4-700 anode exhibits the highest cycling performance with excellent reversible discharge and charge specific capacities of 745 and 755 mA·h/g at the current density of 100 mA/g after 100 charge–discharge cycles, respectively. |
| |
| Keywords: | lithium-ion batteries porous structure spheres calcination |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
