(Almost)Perfect

Silicon makes up almost a third of the Earth's crust by mass and is the second most abundant element next to oxygen. It’s the holy grail of energy storage – at a fraction of the cost of graphite.  

The catch is that metallurgical silicon anodes tend to swell and degrade quickly. Coreshell’s technology solves this problem. 

Coreshell Solution

Coreshell’s breakthrough technology acts both as an artificial SEI and as an encapsulant – reinforcing metallurgical silicon anodes during charge and discharge – while also preventing surface degradation.  

Silicon
SEI
Coreshell Coating
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Designing A Better Battery

Integrating a metallurgical silicon anode requires a cell-level solution. Coreshell has developed a comprehensive battery design that incorporates proprietary technology, binders, active materials, and electrolytes. 

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Built From The Source

Introducing Genesis

Longest range and lowest cost silicon anode: 30% more range. 25+% less cost/kWh

Activation of scaled supply chains: Using critical minerals that are already being produced at 100k tons per year domestically

Scalable production: Maximum performance and cost gain using existing battery manufacturing

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A Better Anode, Made in America

Nearly every lithium-ion battery cell in the world relies on graphite. This means that every EV, drone, and defense system running on lithium-ion batteries depends on a critical mineral that’s more than 90% controlled by China.

Coreshell’s exclusive, patented technology replaces graphite with metallurgical silicon (MGS) that’s sourced and processed in the US, delivering not only better performance but also a supply chain this country actually controls.

ANODE
MATERIAL
GraphiteOverseas supply

A supply chain at sea

ANODE
MATERIAL
Coreshell MGSDomestic supply

A supply chain at home

Metallurgical Silicon: Better Performance, Abundantly Available in the US

Metallurgical silicon

Coreshell's MGS anode offers two advantages over legacy graphite anodes.

Performance:MGS has 10x higher energy density than graphite, meaning more range per charge and more power and capacity at a lower weight. Silicon anodes also beat graphite in fast-charge, due to silicon’s voltage and volumetric properties.

Availability:MGS is inexpensive and already produced abundantly in the US. Coreshell sources its silicon domestically through a long-term partnership with Ferroglobe, eliminating the graphite’s mining and processing bottlenecks.

Legacy graphite anodes compared with Coreshell MGS anodes
PropertyLegacy Graphite AnodesCoreshellMGS Anodes
01Supply Chain ResiliencyDependent on Chinese critical minerals, exposed to export controls and geopolitical riskDomestic supply, NDAA and FEOC compliant, free of Chinese critical minerals
02Energy DensityWell-established capacity ceiling10x higher than graphite
03WeightRequires more active material by mass to deliver the same capacityHigher gravimetric capacity supports lighter anodes and longer vehicle range
04CostIncreasingly volatile pricing amid trade restrictionsCheaper to process than graphite, 20x cheaper than synthetic silicon

Other “Silicon Anodes” are Actually Expensive Synthetics

Other “silicon anodes” still rely on graphite. Their silane-derived silicon can cost up to 20x more than Coreshell’s MGS. The rest is graphite, keeping their supply chains dependent on China.

Competitors’ synthetic “silicon”

  • Energy intensive and unscalable
  • Metal converted to gas, then condensed back into solid structures
  • 10x - 20x more expensive than metallurgical silicon

Coreshell Metallurgical Silicon

  • Abundant and already mass-produced in U.S.
  • Mined in Alabama, refined in Ohio
  • Cheaper and more energy dense than Chinese graphite

Built for the lines you already run.

Coreshell integrates with existing lithium-ion manufacturing lines, with no redesign required.

For EV and mobility manufacturers, higher energy density means longer range without added weight or cost. For drone and UAV programs, it means more flight time and payload capacity in the same battery size. For defense platforms, it means a domestically sourced, NDAA-compliant anode that offers real supply chain resilience.

Every OEM carries supply chain risk from the moment they select legacy batteries with graphite anodes. In our age of geopolitical uncertainty, that risk is no longer theoretical. Coreshell liberates OEMs from that risk.

Coreshell battery cell with a horizontal pouch design

Build your next platform on an anode America controls.

Talk to Coreshell about integrating MGS technology into your next-generation battery program.

Contact our team