Journal Article lithium-ion batteries 3D supercapacitors Li-ion batteries aerobic-annealing black phosphorus cathode materials dielectric polarization dual-ion batteries energy density expandable honeycomb structures flexibility flexible electronics guest ions heterogeneous substrates initial coulombic efficiency intercalation materials interfacial lattice strain irreversible capacity loss lithium trapping mechano-graded electrodes mechanocombinatorics oxygen release oxygen vacancy polypyrrole pseudocapacitive charge storage rocking-chair cycling process sensitivity screening solid-state reconversion reactivity strain redistribution