Recent studies have introduced innovative materials and methods enhancing lithium and zinc battery performance. Researchers from Helmholtz-Zentrum Berlin used neutron tomography to clarify lithium-sulfur battery electrolyte behavior, while Tokyo Institute of Science developed a quasi-solid electrolyte (3D-SLISE) improving safety and energy density. Additional work includes plasma-assisted recycling of polymetallic ore tailings to yield silica nanofillers for lithium-metal batteries. These strides aim to overcome performance and sustainability challenges, signaling a shift toward safer, higher-capacity energy storage solutions essential for portable electronics and electric vehicles.