The world is witnessing a significant surge in electricity usage, particularly during the summer months. Heat-driven adsorption cooling devices seems to be a promising alternative to conventional compressor-based cooling systems. Yet, to further enhance the efficiency of sorption chillers, it is important to develop and scrutinize new adsorbents with heightened sorption capacity and thermal conductivity coefficients. In this study, silica gels and composite adsorbents of metal salts on a silica gel matrix were tested and compared. Silica gel type A, B and C which differs in specific surface area, mean pore diameter and thermal conductivity coefficient were analysed and further impregnated to obtain composite materials. Inorganic salts: MgCl2, ZnCl2 and LiBr were used in wet-impregnation method. Composite materials composition and their thermal stability were determined. The utilization of obtained material in adsorption chillers was analysed and discussed. Due to both chemical and physical adsorption composite materials are characterized by high adsorption capacity towards water, exceeding 100%, but their long-term stability is unclear. Therefore, degradation of the impregnated silica gels during cyclic adsorption and desorption was determined. Composite materials are promising bed materials for adsorption chillers, but their degradation is observed with time. Therefore, innovative technologies including for example glue beds are studied.