Journal Article Li metal compatibility Li-ion batteries Mg‐based borohydride Review all solid‐state Li metal battery capacity retention defective N heteroatoms electrolytes fast-charging ferromagnetism graphite anodes half‐Heusler compounds high‐throughput material design hydrogen storage hydrogen storage materials intermediate evolution machine learning mechanism mining porous carbon scaffold solid‐state electrolyte stable oxyhalide‐nitride fast ionic conductor thermoelectrics transport properties vacancy short‐range order