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PLANCK POWER CORPORATION
Membrane-Controlled Ion Battery (MCIB) · Advanced Energy Storage and Transmission
A Delaware Corporation May 2026 v5.2
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The Grid Stability Platform That Changes Everything.

MCIB SLM-X — Sovereign · Safe · Reliable · Affordable · Clean · Efficient · Scalable · Flexible
About Planck Power

Pioneering the Next Era of Safe, High-Performance Energy Storage and Transmission Platforms

Energy storage and transmission has become sovereign infrastructure. AI-driven load growth, fragile global supply chains, and a stressed grid have made domestic, high-performance storage a national-interest asset — not a climate accessory.

Planck Power is building the platform that meets that requirement. The SLM-X™ system — the first realized member of a new battery category, the Membrane-Controlled Ion Battery (MCIB) — runs 20,000 cycles, lasts 25 years, responds in under 20 milliseconds, and operates from −40 °C to +85 °C without active thermal management. The architecture eliminates flammable liquid electrolytes and suppresses dendrite formation, removing the failure class that constrains lithium-ion siting in dense, urban, and near-load environments.

Every cell, component, and gram of material and machinery can be sourced and manufactured in the United States. FEOC-compliant by construction.

What We're Building
Planck Pack: BESS · LDES · SATA — An integrated BESS, long-duration energy storage, and storage as a transmission asset platform for grid stability, power-quality control, capacity expansion, and rapid deployment at the point of load
Offshore Oil and Gas Platforms — Designed for offshore oil and gas platforms where power instability directly impacts production, equipment life, and safety, the Planck Pack provides sub-20 millisecond response to stabilize frequency and voltage excursions before they propagate through critical systems. This reduces equipment stress on turbines, compressors, and electrical systems, extends asset life, and minimizes unplanned downtime. By maintaining stable power conditions and reducing trip events, the system has the potential to preserve significant daily production value and lower operating costs in high-throughput offshore environments
The SLM-X MCIB Battery: Energy infrastructure at the boundary of physics

Membrane-Controlled Ion Battery

Dual-Ion Architecture · Aqueous Electrolyte · 2 dimensional polymer bridge
Dual-Channel Ion Architecture
H⁺ Channel
SoC_H
Grotthuss Relay
<3 ms
Polymer
Bridge
Li⁺ Channel
SoC_Li
Intercalation
<17 ms
Multi-layer membrane architecture · Selective ion transport · 2 dimensional bipolar materials
Performance Characteristics
Response
<20 ms
FFR / Grid qualification
Peak C-Rate
50C
FFR burst
Temperature
−40 to +85 °C
Full performance range
Cycle Life
>20,000
25-yr design life
Energy Density
3500 Wh/L
Volumetric (cell)
815 Wh/kg
Gravimetric (cell)
Why MCIB is Different
Non-flammable electrolyte
SLM-confined NH₃·H₂O electrolyte (no free liquid phase) eliminates thermal runaway. No fire suppression required.
True dual-ion power delivery
H⁺ Grotthuss handles bursts; Li⁺ intercalation delivers sustained energy.
IRA §45X Manufacturing Ready · FEOC Compliant · 100% Made in the USA
Vertically integrated U.S. cell-and-module manufacturing qualifies for up to $45/kWh in §45X production credits at full value through 2029, with statutory phase-down across 2030 to 2032.
Tour the Planck Pack
Launch Tour