A solid polymer electrolyte containing a novel lithium borate salt for all-solid-state lithium-ion batteries

Abstract

We prepared a solid polymer electrolyte (SPE) composed of a lithium borate salt and a polymer matrix, which can be employed for all-solid-state lithium-ion batteries. The lithium borate salt was made from lithium cations and bis (maleic acid) borate anions, and exhibits an excellent thermal stability as well as high ionic conductivity. The polymer matrix is an amorphous polymeric material having no crystalline regions, which is beneficial for the movement of lithium ions in the SPE. The polymer matrix also has good mechanical performance and thermal stability. Moreover, the SPE also has a relatively high ionic conductivity.

First-Principles Studies on Ultrafast Ionic Transport through van der Waals Solid Electrolytes of YX3 (X = Cl, Br, I) with Quasi-One-Dimensional Atomic Pore Channels

“…YX 3 materials are considered as the skeleton structures of solid electrolytes and provide uniquely 1D vdW atomic pore channels for ionic transport. Similar to polymer solid electrolytes and inorganic solid electrolytes, − the diffused ions would be introduced by solvated alkali metal salts. As long as the uniquely ordered 1D vdW ionic transport channels are well kept, YX 3 here possessing relatively larger channel sizes (4.76–7.58 Å) than those in LaCl 3 (4.6 Å) and MX 3 with 2D naturally atomic pores might guarantee superior ionic transport properties (see Figure S8), which is highly desirable to be examined by experimental experts.…”