Effects of amorphous AlPO4 coating on the electrochemical performance of BiF3 cathode materials for lithium-ion batteries

► The BiF3/AlPO4 composite coated with AlPO4 is prepared by solid state method. ► The addition of amorphous AlPO4 improves the electrochemical performance of BiF3. ► The effect of BiF3/AlPO4 composite on solid electrolyte interface film is discussed.