Brighton Colorado Si Anode Pilot

Amprius Technologies · Brighton, USA · Silicon

Anode material plant operated by Amprius Technologies in Brighton, USA. Status: cancelled.

Brighton Colorado Si Anode Pilot: anode plant illustration with graphitization furnace and spheroidizing mill; Silicon, status cancelled, USA Silicon Cancelled USA
Capacity
0.5 kt/yr
Product
100% Si nanowire
Start year
2022
Hub
Supply Chain

Status

Cancelled: Amprius dropped the Brighton factory plan in favor of contract manufacturing

Product: 100% Si nanowire. Capacity: 0.5 kt/yr (Legacy figure; not re-verified).

100% silicon nanowire anode (no graphite); highest energy density available >400 Wh/kg; defense and aviation primary; fast charge capability; scaling challenges remain; Airbus partnership for electric aviation.

Customers and offtakers: Defense / Aviation / Airbus.

Plant record

Plant record

Brighton Colorado Si Anode Pilot (Amprius Technologies)
CompanyAmprius Technologies
PlantBrighton Colorado Si Anode Pilot
CityBrighton
State or provinceColorado
CountryUSA
Materialsilicon
Product100% Si nanowire
Capacity (kt/yr)0.5
Capacity basisLegacy figure; not re-verified
Statuscancelled
Status noteAmprius dropped the Brighton factory plan in favor of contract manufacturing; verify
Scalepilot
Start year2022
Investment (US$ billion)0.
Customers and offtakersDefense / Aviation / Airbus
Carbon or silicon sourceSilicon nanowire (VLS process)
Geopolitical exposureLOW
Record updated2026-10

Official site: amprius.com

In context

Where it fits

Listed in Anode Active Materials. Anode plants are compared on route (natural or synthetic graphite, silicon, hard carbon), the step they own (mining, graphitization, spheroidizing, coating), capacity and cell qualification; purification, graphitization and coating are the bottlenecks, not graphite itself.

Other plants of Amprius Technologies and other plants in USA
PlantCountryStatus
Fremont Plant (Amprius Technologies)USAoperational
New Carlisle Silicon Anode Line (Alkegen)USAoperational
Anderson Indiana LTO Pilot (Altair Nanotechnologies)USAoperational
Sanborn Synthetic Graphite Plant (Anovion)USAoperational
Fab1 Fremont Silicon Anode (Enovix)USAoperational
Woodinville BAM-1 Plant (Group14 Technologies)USAoperational
Rochester Lithium Metal Anode Line (Li-Metal)USAoperational
Chicago Plant (NanoGraf)USAoperational
Michigan Si-C Development (One D Material (1DM))USAoperational
Michigan Si-C Plant (Paraclete Energy)USAoperational

Sources

Sources and scope

Scope
Brighton Colorado Si Anode Pilot (Amprius Technologies)
Sources
ElectronsX anode dataset; company disclosures and filings
Updated
2026-10