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Per first nom, a recent patent with Wikipedia being used for publicity. Way too many unsourced statements, promo and claims. Far WP:TOOSOON as well.
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Schematic diagram of a secondary carbon battery showing graphite current collectors, porous carbon electrodes, and brine electrolyte.
A secondary carbon battery[1] is a type of rechargeable battery that uses carbon-based materials as electrodes and water-based brine solutions as electrolytes.[2][3] These batteries are notable for their environmental friendliness, as they use only carbon electrodes without any metals, and employ non-toxic salt solutions as electrolytes.
Operating principle
Secondary carbon batteries operate through a combination of capacitive and faradaic processes. During charging, the battery stores energy through:
Electric double-layer capacitance at the electrode-electrolyte interface
Pseudo-capacitance from surface reactions
Faradic electrochemical processes including partial water dissociation
Above 1.23V (the thermodynamic stability limit of water), hydrogen accumulates on the negative electrode through physical and chemical sorption, while oxygen accumulates on the positive electrode. This process creates pH differences between the electrodes, which helps improve the maximum working voltage[4] according to the Nernst equation:
