| 摘要： |
High-performance electrolyte is necessary to improve safety issues and electrochemical performance of rechargeable lithium batteries. Sandwich-structured electrolyte, a novel class of electrolyte system, possess special two, three or more layers of symmetrical or asymmetrical structures, which can complement the performance advantages of different materials, effectively improving the performance of rechargeable lithium batteries. Based on this, this paper combs the multi-functional applications exhibited by sandwich-structured electrolytes in high-voltage lithium batteries, solid-state lithium batteries, lithium metal batteries and high-energy lithium-sulfur batteries: (1) enhancing ionic conductivity; (2) improving compatibility of the lithium/electrolyte interface to inhibit lithium dendrite growth; (3) improving the oxidation resistance of the electrolyte at the cathode interface; (4) preventing dissolution of transition metal ions in the cathode; (5) suppressing the shuttling of polysulfides to improve the electrochemical performance of lithium-sulfur batteries. And from the specific application of sandwich-structured electrolytes, we mainly summary the types, preparation process and research advances of sandwich-structured electrolytes in high-performance rechargeable lithium batteries. At the end of the review, we also discuss the challenges and future development of sandwich-structured electrolytes. It will undoubtedly act as a great reference and theoretical guidance for researchers engaged in high-performance electrolytes for rechargeable lithium batteries. |
