Effect of additives on the high-temperature performance of a sodium bis(oxalato)borate in trimethyl phosphate electrolyte in sodium-ion batteries.

ABSTRACT: Sodium-ion batteries are a promising alternative to lithium-ion batteries due to their potential for lower cost and greater sustainability. However, achieving stable cycling performance, particularly at high mass-loadings and elevated temperatures, remains a challenge. The stable cycling of high mass-loading sodium-ion battery cells is here made possible by addition of prop-1-ene-1,3-sultone (PES) to a non-flammable and fluorine-free electrolyte solution of sodium bis(oxalato)borate (NaBOB) salt in triethyl phosphate (TEP). This study investigates the thermal stability and electrochemical performance of such electrolyte at 40 °C and 55 °C, contrasting their performance with base NaBOB in TEP with and without ethylene sulfate (DTD) additive and with a reference carbonate electrolyte of NaPF

SUBMITTER: Welch J 

PROVIDER: S-EPMC12033342 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature