Improving the performance of lithium-ion battery through doping the conductive agent in porous LiFePO4

In this work, the acetylene black and ammonium bicarbonate are co-doped in LiFePO₄ by ball milling. When heating the sample in argon condition, the porous structure LiFePO₄ doped with conductive agent can obtain after ammonium bicarbonate is decomposed. The material shows excellent cycle performance when fabricated a Li-ion half-cell. Such a cathode material may be a good candidate for three dimensional Li-ion batteries developed in the future.