▎ 摘　　要

NOVELTY - Preparing a microporous transformation alloying material, comprises (1) ball milling, blending and compounding the active material, polymer micro powder and conductive filler, and mechanically molding the mixture to obtain a polymer/active material compounding system, (2) foaming the polymer/active material compound system obtained in the resultant step via supercritical carbon dioxide intermittent micropore foaming, and (3) placing the foaming composite material obtained in the resultant step into a quartz grinding tool, heating and carbonizing by microwave. In the step (1) the active material is GeP, GeS2, Sn2S3 and Sn4P3. USE - The alloying material is useful as battery cathode electrode (claimed). ADVANTAGE - The material: has high efficiency; improves the internal stress of the active particles caused by large volume change in the process of converting and alloying cathode electrode and conversion and alloying the cathode electrode; and realize the energy storage of lithium/sodium battery.