Synthesis of LiFePO4 by one-step annealing under the vacuum condition

It is universally known that two methods could be utilized to avoid oxidation: one is by the inert gas protection that is used by researchers in producing LiFePO4, and the other by use of vacuum. This gave us the hint that LiFePO4 might be synthesized under vacuum conditions and the decomposing step might also be removed. In this paper, we used one-step annealing under vacuum conditions as our route in which the traditional decomposing step is removed and the inert gas protection is cancelled simultaneously. We also investigated the phyiscal and electrical properties of our product to test our route.