Work

Boosting Li 3 V 2 (PO 4 ) 3 cathode stability using a concentrated aqueous electrolyte for high-voltage zinc batteries

Year: 2021

Type: article

Abstract: We demonstrate that the capacity decay and voltage drop issues of the Li3V2(PO4)3 cathode are significantly addressed by using a concentrated aqueous electrolyte based on Zn and Li salts. The resultant aqueous Zn//Li3V2(PO4)3 battery achieves a high output voltage of 1.75 V and a long lifespan with 82.3% capacity retention over 2000 cycles. Joint structural and spectroscopic characterizations reveal that this battery operates through Li+ (de)intercalation into the cathode along with Zn2+ plating/stripping at the anode.

Source: Chemical Communications

DOI: 10.1039/d0cc08115a