• 专利标题:   Preparing porous structure black phosphorene self-supporting anode material useful for high-efficiency energy storage of lithium/sodium battery, ball milling and blending pretreated red phosphorus, mineralizer, conductive material, and polymer micropowder, adding foaming agent, and calcining.
  • 专利号:   CN114725362-A
  • 发明人:   XU H, WU F, XIE Y, XIE D, MEI Y, CHEN Q, FENG D
  • 专利权人:   UNIV KUNMING SCI TECHNOLOGY
  • 国际专利分类:   H01M010/0525, H01M004/36, H01M004/38, H01M004/62
  • 专利详细信息:   CN114725362-A 08 Jul 2022 H01M-004/36 202276 Chinese
  • 申请详细信息:   CN114725362-A CN10518791 12 May 2022
  • 优先权号:   CN10518791

▎ 摘  要

NOVELTY - Preparing porous structure black phosphorene self-supporting anode material comprises (i) ball milling and blending the pretreated red phosphorus, mineralizer, conductive material, and polymer micropowder to obtain a composite precursor, (ii) adding foaming agent into the composite precursor and mixing the powders by compression molding to prepare a sheet, (iii) performing microcellular foaming on the sheet by microwave foaming to obtain a polymer conductive foam composite material, and (iv) calcining the polymer conductive foam composite material. USE - The porous structure black phosphorene self-supporting anode material is useful for high-efficiency energy storage of lithium/sodium battery. ADVANTAGE - The method introduces polymer micropowder from a wide range to carry out microwave foaming, efficient constructs anode precursors with different porosity and pore structure, black phosphorus particles are embedded, encased in conductive carbon foam, the microporous conductive foam acts as a bumper bed, can effectively prevent the agglomeration of nano black phosphorus particles, effectively buffers the large volume expansion of phosphorus anode materials during charging and discharging, and obtains high-performance porous structure black phosphorene self-supporting anode with better comprehensive properties.