Niigata Si Anode Plant

Shin-Etsu Chemical · Niigata, Japan · Silicon-carbon

Anode material plant operated by Shin-Etsu Chemical in Niigata, Japan. Status: operational.

Niigata Si Anode Plant: anode plant illustration with graphitization furnace and spheroidizing mill; Silicon-carbon, status operational, Japan Silicon-carbon Operational Japan
Capacity
10.0 kt/yr
Product
SiOx-graphite composite
Start year
2020
Hub
Supply Chain

Status

Operational: status carried from the legacy record

Product: SiOx-graphite composite. Capacity: 10.0 kt/yr (Legacy figure; not re-verified).

Shin-Etsu SiOx-graphite composite; partial silicon replacement (~5% Si); lower expansion than pure Si; Panasonic 2170 cells use SiOx; most commercially mature silicon anode approach.

Customers and offtakers: Panasonic / Toyota / LGES.

Plant record

Plant record

Niigata Si Anode Plant (Shin-Etsu Chemical)
CompanyShin-Etsu Chemical
PlantNiigata Si Anode Plant
CityNiigata
State or provinceNiigata
CountryJapan
Materialsilicon-carbon
ProductSiOx-graphite composite
Capacity (kt/yr)10.0
Capacity basisLegacy figure; not re-verified
Statusoperational
Status noteStatus carried from the legacy record; not re-verified
Scalecommercial
Start year2020
Investment (US$ billion)0.
Customers and offtakersPanasonic / Toyota / LGES
Carbon or silicon sourceMetallurgical silicon (SiOx)
Geopolitical exposureLOW
Record updated2026-10

Official site: shinetsu.co.jp/en

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 Shin-Etsu Chemical and other plants in Japan
PlantCountryStatus
Osaka Hard Carbon Plant (Kuraray)Japanoperational
Iwaki Hard Carbon Plant (Kureha Corporation)Japanoperational
Anode Material Lines (Mitsubishi Chemical)Japanoperational
Osaka SiOx Anode Plant (Osaka Titanium Technologies)Japanoperational
Graphite Anode Plants (Resonac)Japanoperational
Tokai Synthetic Graphite (Tokai Carbon)Japanoperational
Kashiwazaki SCiB Plant (Toshiba)Japanoperational

Sources

Sources and scope

Scope
Niigata Si Anode Plant (Shin-Etsu Chemical)
Sources
ElectronsX anode dataset; company disclosures and filings
Updated
2026-10