Critical Safety.
Sovereign Supply.
Grid-Scale Physics.
SLM-X™ Dual-Ion Solid State Battery
Developing the first non-flammable, 100% FEOC-compliant ammonium-ion battery for critical infrastructure.
Our Three Pillars
An ammonium-ion architecture engineered to resolve the thermal instability and supply chain risks inherent in legacy lithium-ion systems.
Inherent Safety
Designed to eliminate thermal runaway at the chemical level. Our ammonium-ion electrolyte targets zero propagation, aiming to remove the need for complex fire suppression and reduce insurance costs.
Sovereign Supply
Engineered without lithium, cobalt, or nickel. Our supply chain utilizes domestic ammonium salts to ensure long-term immunity from foreign entity tariffs and supply shocks.
Precision Power
High-mobility ionic design modeled to meet ERCOT FFR (Fast Frequency Response) standards, protecting grid assets from frequency excursions.
Physics & Design
Note: Performance specifications represent design targets and physics-based modeling. Third-party validation and prototyping is currently in progress.
The SLM-X™ Difference
Unlike traditional Li-ion batteries that rely on slow intercalation of lithium into graphite, SLM-X™ utilizes a membrane-controlled dual-ion exchange. This physics-based approach is designed to decouple power density from degradation..
Design Targets
Chemistry: Ammonium-Ion Solid State
Electrolyte: Supercritical Ammonia (Non-Flammable)
Target Density: 400–600 Wh/kg (Modeled)
Target Response: <250ms (Grid-Following)
Cooling Architecture: Passive / Air Cooled (No Liquid Loops)
The Safety Dividend
We are engineering a chemistry that changes the insurance equation. By removing flammable organic solvents, SLM-X™ is designed to allow “In-Row” placement for data centers and reduced setbacks for urban utilities.
Our Mission
Planck Power was founded to solve the two existential risks facing the energy transition: Safety and Supply Chain Sovereignty. We are infrastructure veterans building specifically for the requirements of EPCs, ISOs, and Hyperscalers.
Engineering Out the “Liability Class”
For too long, the energy transition has accepted thermal risk as the price of storage. At Planck Power, we reject that compromise. Our mission is to transform energy storage from a dangerous liability into a stable infrastructure asset.
Energy Sovereignty by Design
True energy security cannot exist on a brittle supply chain. We are commercializing a chemistry that bypasses the geopolitical choke-points of lithium, cobalt, and nickel. By utilizing abundant, domestic ammonium salts, Planck Power is building a supply chain that is 100% FEOC (Foreign Entity of Concern) compliant—ensuring that American grid infrastructure remains independent of foreign resource monopolies.
Collaborative Commercialization
Grid transformation is a team sport. We do not aim to disrupt the grid; we aim to serve it. Our commercialization strategy is built on deep integration with the technical gatekeepers of the industry—EPC firms, FEED engineers, and equipment integrators. We are building our technology roadmap in lockstep with the people who actually build the grid.
First-Principles Physics
Incremental improvements to lithium-ion cannot solve the fundamental physics of thermal propagation or degradation. We chose a harder path: a ground-up architectural rethink. Leveraging the high ionic mobility of supercritical fluids and solid-state membranes, we are validating a dual-ion physics model designed to decouple power density from safety risk.
