The Silicon Anode Platform
Built for Commercial Batteries.
Terra Silicon™ helps battery manufacturers build longer-lasting, faster-charging, and lower-cost lithium-ion cells on existing production lines.
The battery industry needs more than better materials.
Graphite has powered lithium-ion for three decades and is approaching its theoretical ceiling. The industry needs silicon, but silicon has never been ready for commercial batteries.
Graphite is at its limit
Existing anode chemistries cannot meet the range, charging, and cost requirements of next-generation vehicles and devices.
Silicon is the answer, in theory
Silicon stores up to 10× more lithium than graphite. In practice, most silicon technologies fail commercially due to expansion, cycle degradation, and process complexity.
Terra Silicon closes the gap
Engineered to solve both performance and manufacturability, the two barriers that have kept silicon out of commercial cells.
From laboratory promise to commercial reality.
Terra Silicon balances the six variables that determine whether a battery material actually reaches production.
Higher gravimetric and volumetric density per cell for longer range and runtime.
Fast-charge kinetics targeting 80% state of charge in under 10 minutes.
More than 1,000 cycles and more than 10 years of calendar life at high silicon content.
Drop-in compatible with existing lithium-ion lines, from pilot tonnes to thousands of tonnes per year.
Our team has led programs delivering more than 100 million cells into EVs, ESS, and portable devices worldwide without a single safety incident. That discipline extends to every Terra Silicon customer program.
Fewer cells for equivalent capacity and lower cost per kWh. Global procurement across our US, Korea, and Vietnam teams secures the best materials, equipment, and operating cost structure.
Why manufacturers choose Terra Silicon™.
Every capability is engineered against a commercial constraint.
Up to 40% Longer Battery Duration
Higher energy density enables longer driving range, extended runtime, and greater mission endurance across every form factor.
Ultra-Fast Charging
Targeting 80% state of charge in under 10 minutes.
Up to 50% Lower Material Cost
Fewer cells required for equivalent capacity, lower cost per kWh, and reduced pack complexity.
Long Cycle Life & Calendar Life
Proprietary particle architecture minimizes silicon expansion, sustaining thousands of cycles and more than 10 years of calendar life.
Manufacturable at Industrial Scale
Compatible with existing lithium-ion production lines. No exotic equipment required.
Integration Expertise
Through Joint Development Projects, we help customers build battery cells using Terra Silicon for different commercial applications, drawing on deep experience scaling lithium-ion development and production.
Commercial success depends on manufacturability.
Many silicon technologies achieve excellent laboratory performance and never reach commercial cells. Terra Silicon was designed for industrial manufacturing first, then validated against demanding performance requirements.
Existing Production Lines
Drop-in compatible with standard slurry, coating, and calendering equipment.
Scalable Manufacturing
Process designed for tonnes-per-year today and thousands of tonnes tomorrow.
Consistent Product Quality
Statistical process control across every batch, from pilot to gigafactory.
Manufacturing Support
Our engineers embed with your team through qualification and ramp.
Built by people who have already done it.
Battery commercialization requires expertise across chemistry, electrode formulation, cell engineering, manufacturing qualification, and industrial ramp. Our leadership has delivered this work for the world's largest automakers and consumer electronics companies.
Experience, revenue, program, and market-share figures reflect the team's leadership experience as chief designer and project leader in previous companies.
Industries we enable.
Terra Silicon shows up wherever lithium-ion cells define what a product can do.
Electric Vehicles
Extended range, faster charging, lower pack cost.
Consumer Electronics
Longer runtime in ever-thinner devices.
Robotics
Higher energy density for autonomous platforms.
Drones & Aviation
Extended flight time in weight-constrained systems.
Energy Storage Systems
Higher-density stationary storage at lower cost.
Defense
Mission-critical endurance in demanding environments.
Introducing the Customer Technical Support Program.
We work alongside customer engineering teams to create, optimize, and scale battery cell development using Terra Silicon, at silicon loadings from 6 weight percent up to 70 weight percent to meet application performance requirements.
The program covers electrode formulation, cell design, process qualification, and ramp support. Our engineers embed with customer teams to translate Terra Silicon capabilities into production-ready cells for EVs, consumer electronics, robotics, aviation, energy storage, and defense.
What's new at HKG Energy.
Let's build the next generation of batteries together.
HKG Energy partners with battery manufacturers and OEMs from technology evaluation through commercial deployment.