Abstract: 1. The specification relates to a carbonous composite particle made from pine tree needles or other natural leaves of composition CM for use in an energy cell. C is carbon, M is from a group of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Mo, Pd, Ag, W, Al, N, C, B, O, F, Si, P, Cl, Ga, Sn, Li, Na, K, Mg, Ca, Sr. Energy cell is lithium ion or sodium ion or lithium sulfur or lithium air or rechargeable cell or primary cell or electrochemical cell or fuel cell or magnesium cell or solar cell or capacitor or super-capacitor or hybrid cells or alkaline cell or lead acid cell or metal hydride or nickel cadmium or combination of thereof.