Regrettably, current methods for conversion of bio-materials to conductive carbon for functional applications, namely LIBs , make extensive use of energy-intensive methods for inducing carbonization . Employment of such methods are fundamentally counter-productive to the overarching objective of developing a fully sustainable approach to energy-storage, spanning from the origin of the carbon source to the ultimate stages of product refinement. In order to have industrial potential and be truly sustainable, the use of jellyfish biomass as a carbon precursor also requires a cheap, scalable, low-energy and additive-free synthesis process that is ecologically and economically viable. Such a process for the synthesis of conductive carbon structures that has emerged in recent years is use of laser irradiation (IR, UV, visible) on insulating carbon precursors. In short, laser irradiation under ambient conditions is used to induce a photochemical and photothermal reaction of a carbon precursor that transforms the material into a three-dimensional structure with controllable properties such as porosity and conductivity using different lasing parameters . Building on this innovation, this work pioneers this technique as a unique sustainable solution for LIBs. Through the integration of an electrochemically active substance, like silicon, embedded into a carbon precursor, a similar method can be used to produce an additive-free conductive 3D porous composite structure for use in LIBs.