Electrochemical properties of sulfur electrode containing nano Al2O3 for lithium/sulfur cell
Year: 2007
Type: article
Abstract: To prevent the dissolution of lithium polysulfides into liquid electrolyte and to promote the lithium/sulfur redox reaction, nano-sized Al 2 O 3 particles having large specific surface area were added into sulfur electrode. The effects of nano-sized Al 2 O 3 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 Al 2 O 3 particles showed good cycle performance and higher discharge capacity of 660 mAh g −1 -sulfur than that of the sulfur electrode without nano Al 2 O 3 . It is therefore concluded that the addition of nano-sized Al 2 O 3 particles gives the beneficial effects of preventing the dissolution of lithium polysulfides into liquid electrolyte.
Source: Physica Scripta
Institutions: Gyeongsang National University, Chonnam National University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2083557455