Advanced silicon-graphite composite materials engineered for the next generation of high-performance lithium-ion batteries.
Conventional graphite anodes have nearly reached their theoretical capacity limits. The energy transition demands a step-change in battery performance.
Graphite anodes — the industry standard for thirty years — have a theoretical specific capacity of only 372 mAh/g. As electric vehicles, grid storage, and portable electronics demand ever-greater energy density, graphite is no longer sufficient.
Silicon offers a theoretical capacity of over 3,500 mAh/g — nearly ten times that of graphite. However, silicon expands up to 300% volumetrically during lithiation, causing mechanical degradation, capacity fade, and electrode failure over repeated cycles.
ErgCell's approach addresses this core challenge directly: engineering silicon-graphite composite anodes that harness silicon's extraordinary capacity while controlling the deleterious expansion effects that have historically limited its commercial viability.
Silicon-graphite composites capture a significant portion of silicon's capacity advantage while maintaining the structural stability needed for commercial cycle life.
A multi-scale engineering strategy addressing silicon's fundamental limitations at the material, electrode, and cell levels.
Silicon particles are engineered at the nanoscale to reduce absolute volume change per particle and minimize mechanical stress during lithiation and delithiation cycles.
Conductive carbon matrices buffer silicon expansion, maintain electrical contact, and stabilize the solid-electrolyte interphase (SEI) — the key to long-term cycle stability.
Advanced synthesis routes — including microwave-assisted and hydrothermal methods — enable precise control of particle morphology, porosity, and surface chemistry.
Whether you are a cell manufacturer, research institution, or a program manager looking for advanced anode materials expertise — we would like to hear from you.
Contact ErgCell