SP3 BORON SINGLE ION ELECTROLYTES FOR LITHIUM ION BATTERY APPLICATION

Abstract

Rechargeable Li-ion batteries have been employed to power various portable electronics, such as mobile phones, digital cameras, laptops and iPads that have changed our communication in the modern society. Despite the continuously impressive development of Li-ion battery technique, it still can?t fully satisfy the industrial demand. The use of LiPF6 in a large amount of organic solvents coupled with large battery packs for high power applications raise severe safety concerns. Besides, the polarization issue inherently associated with dual-ion electrolytes is detrimental to batteries, lowering the output voltage, and ultimately reducing battery performances. And the metallic lithium is very attracting as the anode material due to its outstanding energy density. With the development of appropriate single-ion polymer electrolytes, we may kill two birds with one stone. Here, we propose to synthesize new sp3 boron-based single-ion polymer electrolytes with high ionic conductivity, high lithium ion transference number and good battery performances.