Synthesis of a fine LiNiCoAlO cathode material for lithium-ion batteries a solvothermal route and its improved high-temperature cyclic performance.

Nickel-Cobalt-Aluminum (NCA) cathode materials for lithium-ion batteries (LIBs) are conventionally synthesized by chemical co-precipitation. However, the co-precipitation of Ni, Co, and Al is difficult to control because the three ions have different solubility product constants. This study proposes a new synthetic route of NCA, which allows fabrication of fine and well-constructed NCA cathode materials by a high temperature solid-state reaction assisted by a fast solvothermal process.