Patent ID: 8084009

Claim:
A method for making a carbon composite material, the method comprising: (a) providing a 1,4-benzenedicarboxylate-metal complex in a vessel, wherein step (a) comprises; (a1) dissolving a metal salt in a first solvent to obtain a first solution; (a2) mixing terephthalic acid with alkaline solution in a second solvent to obtain a second solution, wherein a molar ratio of the terephthalic acid to the metal salt is about 1:1; (a3) mixing the first solution and the second solution together at room temperature to obtain a mixture; and (a4) filtrating the mixture to obtain a filter cake, and drying the filter cake (b) putting the vessel carrying the 1,4-benzenedicarboxylate-metal complex into an environment with a protective gas therein; and (c) heating the 1,4-benzenedicarboxylate-metal complex to a temperature in a range from about 500° C. to about 1300° C.