Battery materials, engineered in Grenoble

More energy in your battery.

Enwires builds silicon-graphite composites that raise the energy density of lithium-ion batteries — without changing how they're manufactured.

Who we are

Enwires is a team of around ten people, working alongside experts from the battery industry. We focus on one problem: how far a graphite-based anode can be pushed before it needs to be replaced.

Lithium-ion batteries are one of the most widely used technologies of modern life, and one of the most constrained. We build materials that extend what's already in production, rather than asking manufacturers to start over.

1.1–4×
the energy density of standard graphite, from our SiBoost composite

What we offer

Built at pilot scale

SiBoost is produced on real production equipment, not lab glassware — so what works in testing is what ships.

A technician in a respirator mask adjusts a valve on a stainless steel pilot reactor Close-up of gloved hands adjusting a fitting on the pilot reactor, lit in purple A scoop of graphite powder being measured and added into a mixing vessel

From powder to particle

Every batch is verified under electron microscopy before it leaves the lab.

Raw graphite powder, before treatment Raw graphite powder next to silicon-doped SiBoost powder, side by side Single graphite particle under electron microscope Particle surface texture under microscope Close-up of coated particle surface A row of small sample trays holding different powder formulations, from dark raw material to fine light powders