Patent ID: 11949103
Assignee: DONGGUK UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC H

Claim 2:
3. An anode electrode active material for a sodium secondary battery, comprising the nickel cobalt molybdenum oxide prepared by a method comprising:
a step of preparing a precursor mixture by dissolving a nickel precursor, a cobalt precursor and a molybdenum precursor in a solvent (step 1);
a step of conducting hydrothermal reaction of the precursor mixture of the step 1 as a reactant (step 2), wherein the hydrothermal reaction is performed at a temperature of 130-180° C. for 4-9 hours and at a pressure of 0.4-0.6 MPa; and
a step of heat-treating the product of the step 2 (step 3), wherein the heat treatment is performed with a heating rate of 1-10° C./min at a temperature of 300-500° C. for 3-5 hours,
wherein the nickel cobalt molybdenum oxide is comprised of a single phase of Chemical Formula 1 and is in the form of a nanorod:

NixCo1-xMoO4  [Chemical Formula 1]

wherein x satisfies 0.45<x<0.55.