Journal Article Review electrolytes Li batteries Li metal compatibility Li-ion batteries Mg‐based borohydride all solid‐state Li metal battery capacity retention defective N heteroatoms desolvation energy fast-charging graphite anodes high‐throughput material design hydrogen storage materials intermediate evolution low-temperature batteries machine learning mechanism mining porous carbon scaffold solid electrolyte interface solid‐state electrolyte stable oxyhalide‐nitride fast ionic conductor