Mn-doped Li3V2(PO4)3 nanocrystal with enhanced electrochemical properties based on aerosol synthesis method
Source abstract
Abstract
Mn-doped Li3V2−x Mn x (PO4)3 nanocrystals with enhanced electrochemical properties for lithium-ion batteries were synthesized by aerosol process successfully. The nanocrystals synthesized from aerosol-assisted spray process have an average particle size smaller than 500 nm, with some initial particle size of about 100 nm. The Mn-doped Li3V2(PO4)3 cathode materials show higher capacity and coulombic efficiency than pure Li3V2(PO4)3 materials. Especially, the Mn-doped Li3V1.94Mn0.06(PO4)3 shows a capacity of 130 mAh/g in the voltage range of 3.0–4.4 V and a coulombic efficiency of 99.5 % at 1C. The results from XRD, SEM, HRTEM, and EIS suggested that lattice changes of Li3V2(PO4)3 due to Mn doping and the fine particles enabled by aerosol-assisted spray process can significantly reduce the charge-transfer resistance and improve the apparent Li+ diffusion coefficient of insertion/desertion in the electrodes, which were the critical reason of better electrochemical performance of Mn-doped Li3V2(PO4)3 cathode materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
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References (37)
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