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Entity 2 four non-lithium cell chemistries — SSSB, Mg-Air, Bio and QSSMg
Solid-State Sodium Silicate Battery cell with 208.48 mAh/g capacity by Entity 2

Entity 2's cell intellectual property is built on earth-abundant, non-lithium chemistries — eliminating critical mineral dependencies while delivering competitive energy density and exceptional cycle life. The foundation of every battery product, every Pinakin HPFC pack, every Rudra SMR conversion chain.

The Cell
Architecture.

MgAir · Fuel Cell Architecture

Magnesium-Air
Fuel Cell.

Hydroxyl-ion-doped cathode eliminates the oxygen reduction reaction (ORR), which is the main performance bottleneck in conventional Mg-Air cells.

Like removing the throttle restriction from a race engine — the same chemical reactions, but with no parasitic internal resistance draining performance. Natural phyllosilicate soaked in Mg-enriched alkaline medium serves as solid-state electrolyte.

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Biodegradable Architecture

Bio-Battery
Cell.

Non-enzymatic biodegradable electrochemical cathode using Microtubules (MTs) isolated from plant sources. The world's only fully biodegradable high-performance cell.

Analogous to a compostable circuit board — same electrical function, zero end-of-life burden. Suitable for biomedical implantables and single-use IoT sensors where conventional cells become permanent environmental liabilities.

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QSSMg · Hybrid Cell

Quasi-Solid
State Magnesium.

Bridges the gap between liquid-electrolyte Mg batteries (high capacity, safety risk) and true solid-state (safe, lower rate capability). A hybrid architecture that recovers performance without sacrificing safety.

Like run-flat tyres that retain structural integrity under pressure while maintaining performance in normal conditions. Ideal for stationary energy storage and low-power electronics applications.

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SSSB · Flagship Cell

Solid-State
Sodium Silicate.

Phyllosilicate-based solid electrolyte using sodium meta silicate as cathode active material (CAM) and carbon black as anode. No liquid electrolyte — no thermal runaway risk.

Think of it as replacing copper wiring with optical fibre: same function, fundamentally safer medium, orders-of-magnitude better durability. The anchor chemistry behind every SSSB-based Entity 2 battery product.

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3.25V

Nominal voltage

Magnesium Enriched Phyllosilicate Soaked in Mg(OH)2

Membrane    

Magnesium  Rich Phyllosilicate

Cathode   

Magnesium Metal

Operating Window

25 to 50° C

Operating temperature

63.20 mAh/g

Specific Capacity

13.53 Wh/kg

Energy Density

10000  cycle life@0.1 C -2 to 2V

Operating Window

Liquid ionic salt

Electrolyte

Microtubules

CAM

0.0632 A/g

Discharge @ 0.1 C

700mAh/g.

Specific Capacity

0.888 kWh/kg.

Gravimetric Energy

10000

Cycle stability @1C

Magnesium

Anode Options

Mg-rich phyllosilicate

Cathode Source

Mg- enriched phyllosilicate

Quasi solid state electrolyte

210 mAh/g

Specific Capacity

1.703 kWh/g  

Gravimetric energy density

10000 

Cycle stability @3C

Sodium Meta Silicate

Cathode

Hard Carbon

Anode Options

Na-enriched phyllosilicate.

Solid State Electrolyte

Four chemistries.
One cell roadmap.

Each Entity 2 cell chemistry is engineered to address a distinct performance envelope. Together they form a complete non-lithium portfolio spanning industrial baseload, mobility, biomedical and stationary storage.

Frequently asked questions

Discuss deployment
at your site

Industrial captive power. Data centre critical infrastructure. Off-grid baseload. Speak with the Entity 2 team for site assessment and commercial parameters.

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