Polymer/MOF composites for metal-ion batteries: A mini review

The rising demand for mobile power supply for smart gadgets, portable electronics, and electric vehicles has fueled interest in high-performance electrochemical energy storage systems (EES). EESs, in general, relate to the transportation of ions between two electrodes in conjunction with the external flow of electrons. In assessing an energy storage device, energy density and power density are crucial. Metal-ion battery systems have poor specific capacity and energy density, as well as safety problems, high ionic radii, metal ion diffusion barriers, and sluggish electrochemical kinetics. Their sluggish ionic diffusion, on the other hand, limits the charging current and induces significant volume changes during cycling, resulting in mechanical fragility. New high-tech energy storage materials are being found in response to these disadvantages. Consequently, novel material designs and chemical compositions with the necessary physical and electrochemical properties, such as ionic conductivity and electronic, redox abilities, capacity, and catalytic activity, are required. To overcome these difficulties in each battery system, new electrochemically superior materials have been created. Metal-organic frameworks (MOFs) and their polymer hybridizations, such as Polymer/MOF composites, are desirable for the construction of metal-ion batteries because they restrict leakage and combustion, prevent short circuits, and permit high energy deposition density.