Electrochemical properties of sulfur electrode containing nano Al2O3 for lithium/sulfur cell
To prevent the dissolution of lithium polysulfides into liquid electrolyte and to promote the lithium/sulfur redox reaction, nano-sized Al2O3 particles having large specific surface area were added into sulfur electrode. The effects of nano-sized Al2O3 particles on the electrochemical properties of sulfur electrode for lithium/sulfur battery were investigated using CV measurements, charge/discharge tests and ionic conductivity measurements of liquid electrolyte. From the results, the sulfur electrode containing nano Al2O3 particles showed good cycle performance and higher discharge capacity of 660mAhg-1-sulfur than that of the sulfur electrode without nano Al2O3. It is therefore concluded that the addition of nano-sized Al2O3 particles gives the beneficial effects of preventing the dissolution of lithium polysulfides into liquid electrolyte.
Y J Choi B S Jung D J Lee J H Jeong K W Kim H J Ahn K K Cho H B Gu
i-Cube Center, ITRC for Energy Storage and Conversion, Gyeongsang National University 900 Gajwa-dong Enerland Co. Ltd, 254-1, Maekok-Ri, Hobup-Myun, Ichon 467-820, Korea Department of Electrical Engineering, College of Engineering, Chonnam National University 300 Yongbo
国际会议
第二届功能原料国际研讨会(The 2rd International Symposium on Functional Materials)
杭州
英文
62-65
2007-05-16（万方平台首次上网日期，不代表论文的发表时间）