MnO2-coated sulfur-filled hollow carbon nanosphere-based cathode materials for enhancing electrochemical performance of Li-S cells Z Yue, H Dunya, K Kucuk, S Aryal, Q Ma, S Antonov, M Ashuri, B Alabbad, ... Journal of The Electrochemical Society 166 (8), A1355, 2019 | 23 | 2019 |