aid: sion-power
name: Sion Power
description: 'Sion Power Corporation is a Tucson, Arizona lithium-metal battery developer
  and manufacturer, spun out of Brookhaven National Laboratory in 1989. Its Licerion
  platform pairs a protected lithium-metal anode with proprietary electrolyte and cell
  engineering to deliver rechargeable cells with roughly double the gravimetric energy
  density of conventional lithium-ion, targeting defense and aerospace systems, uncrewed
  aircraft, and electrified mobility. The company operates a 115,000-square-foot R&D
  and pilot manufacturing facility, holds more than 430 international patents and
  applications, and has raised over $230 million from investors including LG Energy
  Solution. Sion Power sells physical battery cells under development agreements with
  OEMs; it publishes no developer program, public API, SDK, or machine-readable API
  contract of any kind.'
url: https://raw.githubusercontent.com/api-evangelist/sion-power/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
specificationVersion: '0.20'
created: '2026-08-27'
modified: '2026-08-27'
tags:
- Company
- Batteries
- Energy Storage
- Lithium Metal
- Manufacturing
- Advanced Materials
- Defense
- Aerospace
- Electric Vehicles
- Hardware
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/sion-power-domain-security.yml
- type: Website
  url: https://sionpower.com/
- type: About
  url: https://sionpower.com/company/
- type: Product
  url: https://sionpower.com/product/
- type: Technology
  url: https://sionpower.com/technology/
- type: Partners
  url: https://sionpower.com/partners/
- type: News
  url: https://sionpower.com/news/
- type: Careers
  url: https://sionpower.com/careers/
- type: Contact
  url: https://sionpower.com/contact/
- type: SecondaryMarket
  url: https://forgeglobal.com/sion-power_stock/
x-enrichment:
  date: '2026-08-27'
  status: minimal
  artifacts_added: 2
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: >-
    Sion Power manufactures physical lithium-metal battery cells under OEM development
    agreements; sionpower.com is an eight-page WordPress marketing site with no developer,
    docs or API section, and every contract-discovery probe (/openapi.json, /swagger.json,
    /api-docs, /graphql, /.well-known/*) returned the theme's 404 page, leaving the
    WordPress /wp-json/ CMS endpoint (401 rest_api_authentication_required) as the only
    API-shaped surface on the domain.
  evidence:
  - url: https://sionpower.com/openapi.json
    status: 404
  - url: https://sionpower.com/graphql
    status: 404
  - url: https://sionpower.com/.well-known/agent-card.json
    status: 404
  - url: https://sionpower.com/wp-json/
    status: 401
  - url: https://sionpower.com/sitemap.xml
    status: 200
  checked: '2026-08-27'