Membranes for rechargeable lithium sulphur semi-flow batteries

摘要: The aim of achieving high-energy, long-life, safe and low cast storage batteries has brought tremendous scientific attention in the last decade, resulting significant improvements stored energy cathodes anodes particularly lithium-based battery technology. However, presently available lithium-ion technology cannot satisfy increasing demand for density. Li–S is a typical example, which can offer theoretically fivefold increase density compared with conventional lithium rechargeable batteries. Despite advances, there are challenges to its wide-scale implementation, include dissolution intermediate polysulphide reaction species into electrolyte when liquid used as cathodes. Another problem preparation polysulphides. Here we report novel approach replace solid conducting membranes, Argyrodite (Li6PS5X(X = Cl,Br)) Li10GeP2S12 electrolytes mitigate problem. Among three membranes exhibited high first discharge specific capacity 1435 (±3) mAh g−1 at 0.5 C rate.