Hydrogen on aluminum, held by a gel that doesn't need a separator.
A sealed electrochemical cell in which hydrogen is reversibly stored as electron-mediated surface bonds on aluminum nanoparticles dispersed in a continuous proton-conducting carbon gel, with charge retained by bulk-equipotential saturation rather than by an internal separator.
The separator, removed
Every conventional rechargeable cell — lithium-ion, sodium-ion, lead-acid, nickel-metal-hydride, redox-flow, metal-air — is built around the same load-bearing assumption. An anode and a cathode at distinct potentials are separated by an ion-conducting and electronically-insulating barrier whose integrity is the mechanism for charge retention. The separator's failure modes determine cell safety and cycle life across the entire incumbent industry.
The disclosed concept takes the opposite approach. The interior of the cell is a single continuous medium that is electronically conductive, ionically conductive, and mechanically continuous from one terminal to the other. There is no separator. There is no membrane. Charge is held by a different mechanism: bulk-equipotential saturation. When the cell is at rest, every storage site is at the same electrochemical potential. There is no internal gradient, so no internal current flows, so the charge stays where it is — not because something blocks it, but because no thermodynamic gradient exists for it to follow.
The active material is aluminum, dispersed as nanoparticles. The storage mechanism is published surface chemistry: atomic hydrogen chemisorbs onto aluminum surfaces with binding energies in the 50–80 kJ/mol range, forming an electron-mediated covalent bond between a surface aluminum atom and a hydrogen atom. The gel surrounding the particles is a sulfonated carbon framework with combined ionic and electronic conductivity — a property well-characterized in published research since approximately 2010. Like-charged colloidal repulsion (DLVO) keeps each particle's hydrogen population spatially isolated from its neighbors. None of the load-bearing mechanisms are speculative. The novelty is the combination.
Mechanism-grounded cell-level projection: 200–500 Wh/kg. Buildable from existing materials at near-ambient conditions. The full derivation, prior-art context, and open empirical questions are in the technical disclosure.
Building, evaluating, or partnering on next-generation electrochemical storage? The architecture is published openly to invite serious technical engagement.
The disclosed scope is sufficient to demonstrate the architecture's experimental credibility but does not exhaust the inventive content. Synthesis-route specifics, additive selection, conditioning protocols, and several architectural enhancements are retained as trade secret and are the subject of separate filings.
