Study on Mn Recycling in Zn-Mn Battery and its Reutilization in Lithium-Ion Batteries

Abstract

Wet recycling method was utilized for recycling manganese from waste Zn-Mn batteries to obtain MnCO3. It was indicated that soaking time, the concentration and volume of acid all have great effects on the yield of MnCO3. The productivity of MnCO3 can reach 64.65%, when the concentration of HCl acid is 5mol/L, and with a volume of 40ml, under 180min soaking time. The productivity of MnCO3 can also reach 63.36%, when the concentration of HNO3 is 6mol/L, with 60ml volume by soaking for 80min. Furthermore, LiMn2O4 was synthesized in air atmosphere with the recycled MnCO3and Li2CO3 under different calcination temperatures. The electrochemical performances of prepared LiMn2O4 were studied and the results present preferable electrochemical properties.