Heterogeneous structure for accumulating or dissipating energy, methods of using such a structure and associated devices

摘要: The invention relates to a heterogeneous structure for energy accumulation-dissipation (10), the being constituted by porous capillary solid matrix (11) of open porosity and controlled topology, with passages (12) varying section and/or mutually interconnected form labyrinths, liquid (13) surrounding defining liquid/solid separation surface, lyophobic relative said liquid. area surface then varies isothermally reversibly as function external pressure which (10) is subjected.