▎ 摘　　要

NOVELTY - Producing a porous metal matrix composite involves providing and stacking a first metal material and a layer including a multiple of spacing materials to form a stack, pressing the stack by applying a pressure, heating the stack under the pressure to melt a portion of the first metal material, cooling the stack to produce an MMC blank having a metal-spacing material interface, providing an electrolyte, and immersing the MMC blank into the electrolyte to form the porous MMC. USE - Method for producing a porous metal matrix composite (MMC) for electrodes used in an acid battery. ADVANTAGE - The method improves the issue of sulfurization of the negative electrode is to add a carbon material to the lead electrode to increase the effective electrical contact area between the lead sulfate and the conductive carbon material, can increase the cycle life of lead-acid batteries. However, without undergoing special high pressure (about 400 MPa) and high temperature (about 950° C.) treatment to form chemical bonds at the carbon-lead interface and can increase the cycle life of lead-acid batteries. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a porous metal matrix composite (MMC), which comprises a metal material, a spacing material forming an interconnected structure and embedded in the metal material to form an interface between the metal material and the interconnected structure and a first multiple of pores located at the interface.