A Safer Sodium-Ion Battery Based on Nonflammable Organic Phosphate Electrolyte.

ABSTRACT: Sodium-ion batteries are now considered as a low-cost alternative to lithium-ion technologies for large-scale energy storage applications; however, their safety is still a matter of great concern for practical applications. In this paper, a safer sodium-ion battery is proposed by introducing a nonflammable phosphate electrolyte (trimethyl phosphate, TMP) coupled with NaNi_0.35Mn_0.35Fe_0.3O₂ cathode and Sb-based alloy anode. The physical and electrochemical compatibilities of the TMP electrolyte are investigated by igniting, ionic conductivity, cyclic voltammetry, and charge-discharge measurements. The results exhibit that the TMP electrolyte with FEC additive is completely nonflammable and has wide electrochemical window (0-4.5 V vs. Na/Na⁺

SUBMITTER: Zeng Z 

PROVIDER: S-EPMC5039966 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature