Metal oxide modified zinc oxide tube composite negative electrode material for zinc secondary battery and preparation method thereof

The invention belongs to the field of battery materials, and particularly relates to a zinc oxide tube@metal oxide composite negative electrode material for a zinc secondary battery. The material comprises a zinc oxide tube and oxide of metal M1 and oxide of metal M2 loaded on the zinc oxide tube, wherein the metal M1 is at least one of Bi, Sb, Hg, Sn, Ag, Ti and In; and the metal M2 is at least one of Ga, Ni, La, Ba, Al and Ca. The invention also provides a preparation method of the negative electrode material. When the material is used as a zinc negative electrode active material of an alkaline zinc-air secondary battery, the material shows excellent electrochemical performance. The material is reasonable in structural design, the preparation process is simple, the obtained product is excellent in performance, and large-scale industrial application is facilitated. 本发明涉及属于电池材料领域，具体涉及一种锌二次电池用氧化锌管@金属氧化物复合负极材料；包括氧化锌管以及负载在氧化锌管上的金属M1的氧化物和金属M2的氧化物；所述的金属M1为Bi、Sb、Hg、Sn、Ag、Ti、In中的至少一种；金属M2为Ga、Ni、La、Ba、Al、Ca中的至少一种。本发明