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Published on: February 5, 2019
Enhancement of electrochemical properties by polysulfide trapping in a graphene-coated sulfur cathode on patterned
Seung-Ho Yu1, Bora Lee2, Sinho Choi3
1Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 151-742, Republic of Korea and School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Republic of Korea. ysung@snu.ac.kr.
Abstract:
A sulfur cathode on a honeycomb-shape-patterned Al current collector was prepared and successfully sealed using triple-layered graphene. Graphene layers on the sulfur cathode well confined the dissolved polysulfide in the electrode, leading to significantly enhanced electrochemical properties including cycle retention and Coulombic efficiency.
