A review on 1D materials for all-solid-state lithium-ion batteries and all-solid-state lithium-sulfur batteries

Replacing liquid electrolytes with all-solid-state electrolytes has emerged as one of the most promising approaches to address the safety issues and energy degradation in lithium-ion batteries and lithium-sulfur batteries. However, all-solid-state electrolytes will bring problems such as unsatisfactory ionic conductivity and large interfacial impedance between electrolyte and electrodes. One-dimensional (1D) materials have excellent effects on the enhancement of the ionic conductivity of electrolyte and the improvement of the interfacial contact between electrolytes and electrodes and the solution of other problems of all-solid-state lithium-ion batteries (ASSLIBs) and all-solid-state lithium-sulfur batteries (ASSLSBs). In this review, an extensive generalization about the preparation methods of 1D materials including electrospinning method, hydrothermal method, physical vapor deposition, calcination method and their combinations for electrolytes and electrodes are presented. For ASSLIBs, 1D inorganic (including Al2O3, SiO2, TiO2, perovskite ceramics and garnet ceramics) and organic materials (such as PVDF and PEO et al.) are revealed to improve ionic conductivity and reduce lithium dendrite growth in electrolytes and increase electrode-electrolyte contact area in electrodes. Especially for ASSLSBs, the suppression of the "shuttle effect" of polysulfides, the inhibition of lithium dendrite and the settlement to the problems resulted from the non-conductivity and volume expansion of sulfur by 1D materials are also described in detail. In addition, the mechanism of action of 1D materials in both ASSLIBs and ASSLSBs is described. Finally, we conclude with an outlook section to provide some insights on the future prospects of 1D materials in ASSLIBs and ASSLSBs. These discussions and proposed recommendations will offer more approaches to the practical application ASSLIBs and ASSLSBs with high electrochemical performance and safety in the future.