Research on Improving the Electrochemical Performance of Manganese Based Lithium Batteries by Ultrasonic Micro-Nano Processing of Manganese Source Precursors
This study delves into the application of micro-nano bubble water and ultrasonic stirring technology in the synthesis process of lithium manganese iron phosphate(LFMP),aiming to improve the electrochemical performance of manganese based lithium-ion batteries.In the experiment,LiOH,MnSO4·H2O,FeSO4·H2O,and H3PO4 were sequentially added tomicro-nano bubble water and deionized water,respectively.Two LFMP samples were prepared by ultrasonic stirring for 180 minutes.React the samples at 180℃ for 18 hours,and obtain the final product through steps such as centrifugation,cleaning,and drying.Electrochemical tests showed that the LFMP sample using micro-nano bubble water had a higher first cycle discharge specific capacity(149.82 mAh/g)and cycling stability at a current rate of 1 C,with a capacity retention rate of 81.66％ after 100 cycles.In contrast,the first cycle discharge specific capacity of the sample using deionized water is 57.03 mAh/g,and the capacity retention rate after cycling is 96.98％ .Research has shown that micro-nano bubble water and ultrasonic stirring technology can effectively reduce the aggregation and oxidation of precursors,improve the structural stability and electrochemical performance of materials,and provide an effective synthesis method for the improvement of manganese based battery precursors.
Manganese based lithium-ion batteriesMicro-Nano bubble waterUltrasonic stirring methodManganese based battery precursor
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