Co(OH)₂@MnO₂ nanosheet arrays were directly grown on nickel foam via two-step electrodeposition method with subsequent heat treatment at 170 °C.

Silica derived from algae was used as anode material in Li-ion batteries, giving a capacity of more than 700 mA h g⁻¹.

The commonly used polyvinylidene fluoride (PVDF) binder should be replaced with renewable and abundant binder materials to enable a sustainable aqueous processing route for LIB cathodes, by eliminating the energy-intensive N -methyl-2-pyrrolidone (NMP) recovery step.