Physical Sciences and Mathematics Commons^™

Synthesis Of Cose2-Snse2 Nanocube-Coated Nitrogen-Doped Carbon (Nc) As Anode For Lithium And Sodium Ion Batteries, Jin Bai, Huimin Wu, Shiquan Wang, Guangxue Zhang, Chuanqi Feng, Hua-Kun Liu

Australian Institute for Innovative Materials - Papers

CoSe2-SnSe2/NC nanocubes (CSNC@NC) coated by nitrogen-doped carbon (NC) were synthesized successfully by an ordinary pyrazole polymerization and carbonization process. In comparison with bare CSNC, the CSNC@NC composite exhibited good structural stability and improved electrical conductivity when used as anode. The CSNC@NC electrode showed a stable Li storage capacity (730.41 mAh g−1 over 100 cycles at 0.2 A g−1) and excellent rate performance (402.10 mAh g−1 at 2 A g−1). For Na storage, the discharge capacity could be maintained 279.3 mAh g−1 over 100 cycles at 0.2 A g−1; the lower capacity than that for Li storage maybe caused by the …