Rational Design of Core-Shell-Structured Particles by a One-Step and Template-Free Process for High-Performance Lithium/Sodium-Ion Batteries

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Rational Design of Core-Shell-Structured Particles by a One-Step and Template-Free Process for High-Performance Lithium/Sodium-Ion Batteries
	Ehrman, Sheryl H.; Wang, Guoxiu; Liou, Sz-Chian; Luo, Chao; Zhang, Shunlong; Repac, Joseph; Liang, Yujia; Tian, Huajun; Han, Weiqiang
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2018
卷号	122 期号:39 页码:22232-22240
关键词	Anode Material Hollow Carbon Rechargeable Batteries Negative Electrodes Spray-pyrolysis Nanoparticles Spheres Storage Cu Nanofibers
英文摘要	Tin (Sn)-based materials are one of most promising candidates for rechargeable (Li+ and Na+ ion) batteries because of their high theoretical capacities (993 mAh/g for Li4.4Sn and 847 mAh/g for Na15Sn4) and reasonable working potentials. However, Sn-based anodes suffer from huge volume changes during cycling that hinder the applications in commercialized rechargeable batteries. Unique particle engineering to fabricate Sn-core-carbon(shell) (Sn@C) particles has been shown to address or circumvent these problems. In this work, a distinct core-shell-structured Sn@C anode material has been successfully developed by using a one-step and template-free process (colloidal spray pyrolysis). A comprehensive analysis of chemical reaction kinetics of core-shell particles assists the product design to control the particle composition and structure by tuning the process variables, such as reaction temperature and cosolvent concentration. The unique Sn@C anode delivers a high capacity of 720 mAh/g after 300 cycles at 0.5C for lithium-ion batteries and a high capacity of >500 mAh/g at 0.2C for sodium-ion batteries. More importantly, this work advances the design of high-performance Sn@C composites for lithium/sodium-ion batteries in scalable process development, particle engineering, and material innovation.
学科主题	Chemistry
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17137]
专题	2018专题
推荐引用方式 GB/T 7714	Ehrman, Sheryl H.,Wang, Guoxiu,Liou, Sz-Chian,et al. Rational Design of Core-Shell-Structured Particles by a One-Step and Template-Free Process for High-Performance Lithium/Sodium-Ion Batteries[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(39):22232-22240.
APA	Ehrman, Sheryl H..,Wang, Guoxiu.,Liou, Sz-Chian.,Luo, Chao.,Zhang, Shunlong.,...&Han, Weiqiang.(2018).Rational Design of Core-Shell-Structured Particles by a One-Step and Template-Free Process for High-Performance Lithium/Sodium-Ion Batteries.JOURNAL OF PHYSICAL CHEMISTRY C,122(39),22232-22240.
MLA	Ehrman, Sheryl H.,et al."Rational Design of Core-Shell-Structured Particles by a One-Step and Template-Free Process for High-Performance Lithium/Sodium-Ion Batteries".JOURNAL OF PHYSICAL CHEMISTRY C 122.39(2018):22232-22240.