THERMAL BATTERY CORPORATION
Thermal battery system that stores electricity as heat in graphite blocks and converts it back to electricity using thermophotovoltaics
- Sector
- Energy
- Headquarters
- Cambridge, MA
- Founded
- 2021
- Total capital
- $275K
- Federal grants
- $275K
- 1 award · 2023
- Rank in peer group#4 of 47
- Private capital raised
- None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 0
- 2 pending
Capital timeline
Latest events
- Federal grantNSF · Phase I · SBIR Phase I: Delivering Confidence and Reliability in Thermal Batteries for Utilities Using an Aggressively Cycled Test Loop for Pumps, Pipes, Joints and Valves$275K
Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.
Standing among 47 peers
Line = medianEnergy · Device
- Federal grants#4 · top 9%
Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.
Founders and team
No founders are linked to this company yet.
Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.
Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026
Claim this profile to add your teamWhat it has protected
USPTO · 0 granted of 2- PendingDynamically Sealed Expansion Joints For Brittle MaterialsUSPTOApplication 63440358
- PendingBrittle Material ValvesUSPTOApplication 63440327
Related companies, and why
- FOURTH POWER, INC.Shares a founder: Michael Hvasta
- GbatteriesSimilar federal contract value in Energy · null in contracts
- ETC Solar, Inc.Similar federal contract value in Energy · null in contracts
- STRANGE DEVELOPMENT, INC.Similar federal contract value in Energy · null in contracts
- Gary MillerSimilar federal contract value in Energy · null in contracts
- Realta Fusion Inc.Similar federal contract value in Energy · null in contracts
Regulatory activity · Energy
- Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP ProvisionsEnvironmental Protection Agency
- List of Approved Spent Fuel Storage Casks: NAC International, Inc., MAGNASTOR® Storage System, Certificate of Compliance No. 1031, Amendment Nos. 16 and 17 and Revisions to Amendment Nos. 0 Through 16Nuclear Regulatory Commission
- Epyrifenacil; Pesticide TolerancesEnvironmental Protection Agency
- Fluoxapiprolin; Pesticide TolerancesEnvironmental Protection Agency
Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.
Sources
Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.
How to read this page
Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.
Data freshness
SEC Form D filings through . SBIR and STTR awards through .