| abstract |
The invention provides a porous electrode and a preparation method thereof. The method includes the following steps: dry mixing nano carbon powder, metal active precursor powder and polytetrafluoroethylene particles to obtain a mixed powder; compacting the mixed powder on a current collector to obtain a dense electrode; immersing the dense electrode The electrochemical reduction reaction is carried out in the electrolyte to reduce the metal active material precursor to metal and deposit on the surface of the conductive framework composed of nano-carbon in situ to obtain the porous electrode. The present invention also provides the porous electrode obtained by the above preparation method. The porous electrode obtained by the invention has the characteristics of large specific surface area of metal active substances, high activity utilization rate, small internal resistance and low dosage, and is a new type of porous electrode with low cost, high performance and long life. |