Inherently Safe Energy Storage
SLM-X™ Membrane-Controlled Ion Battery
A dual-ion, non-flammable energy storage platform designed from first principles. Built on a 100% domestic supply chain. Patent pending.
The Problem
Energy storage has a structural problem. The dominant battery chemistries powering critical infrastructure carry two risks that no amount of engineering optimization can fully resolve.
Thermal runaway is a chemistry problem, not a design flaw. Lithium-ion batteries use flammable organic solvents. When cells fail, they can generate their own oxygen and sustain fires that are extremely difficult to suppress. This is not a manufacturing defect. It is the physics of the chemistry. Fire suppression systems, blast walls, and setback requirements are expensive consequences of building around a fundamental hazard.
The supply chain is a geopolitical chokepoint. China controls over 70% of global lithium refining and over 80% of cathode and anode production. The U.S. Department of Defense has identified lithium battery supply chain dependence as a national security risk. FEOC restrictions are phasing in. The underlying dependency remains unresolved.
These are not problems that can be solved by making lithium-ion batteries incrementally better. They require a different chemistry.
Our Approach
Planck Power is developing the SLM-X Membrane-Controlled Ion Battery (MCIB), a new battery category built on dual-ion electrochemistry and supported liquid membrane technology.
The SLM-X architecture replaces the flammable organic electrolytes used in conventional lithium-ion batteries with a proprietary, non-flammable electrolyte system. It uses a multi-membrane stack to manage dual-ion transport, targeting response speeds suitable for the most demanding energy storage applications.
The result, if validated, is an energy storage platform designed to eliminate thermal runaway at the chemical level, operate on a fully domestic supply chain free of foreign entity of concern dependencies, and be manufactured using scalable roll-to-roll processes.
All SLM-X performance specifications represent design targets based on physics modeling and electrochemical analysis. Third-party validation and university research partnerships are in progress.
Why This Matters
Safety Changes the Economics
A non-flammable battery changes the insurance equation, the siting equation, and the permitting equation. Reduced setback requirements. Elimination of fire suppression infrastructure. Every avoided fire system is recovered capital. For operators in environments where fire risk is existential, inherent safety is not a feature. It is a requirement.
Sovereignty Is a Design Constraint
The DoD Lithium Battery Strategy identifies supply chain sovereignty as a strategic priority. SLM-X is being designed from the ground up for 100% FEOC compliance, using domestically available ammonium salts, U.S.-sourced membrane polymers, and American manufacturing. True energy security cannot depend on a supply chain that a single geopolitical event could disrupt.
Scaling with the American Energy Buildout
The United States is planning the largest expansion of energy infrastructure in a generation. Meeting that demand with batteries manufactured overseas, priced at import-dependent landing costs, and built on constrained supply chains is not a scalable strategy. SLM-X is being designed for domestic manufacturing at production costs below the landed cost of competing imports, using abundant, domestically sourced materials and scalable roll-to-roll processes.
Planck Power Corporation | Delaware C-Corp | Patent Pending
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