| Beyond Li-Ion Batteries: Future Prospects for Li-S Batteries Vasant Kumar1; 1UNIVERSITY OF CAMBRIDGE, Cambridge, United Kingdom; PAPER: 457/Battery/Plenary (Oral) SCHEDULED: 11:55/Mon. 28 Nov. 2022/Similan 2 ABSTRACT: Li-S batteries are likely to have a promising role to play in the next generation of energy storage technology. The interest arises from several favorable factors: high specific capacity of sulfur at 1670 mAh g-1; abundance in nature and from desulfurised waste dumps; low-cost; and non-toxicity. The practical applications are still hampered by several issues: extremely low conductivity of S and the final discharge product Li2S; shuttling of soluble intermediate polysulfides between electrodes; poor utilization of S; low coulombic efficiency; large volume change of S upon lithiation; and low cycle life from fast capacity fade. Strategies that promise to offer solutions to deal with the above technical barriers are presented. |
