Amprius Technologies, Inc.
Silicon nanowire anode lithium-ion batteries (SiCore®)
- Sector
- Energy
- Headquarters
- Fremont, CA
- Founded
- 2021
- Latest Form D
- $1M, Oct 2022
- Total capital
- $4.8M
- Federal grants
- $1.9M
- 1 award · 2024
- Rank in peer group#4 of 53
- Private capital raised
- $1M
- 1 Form D · last Oct 2022
- 49 months since last filing
- Federal contracts
- $1.9M
- 1 award · Defense
- Rank in Energy#89 of 998
- Granted patents
- 5
- first 2023
- Rank in peer group#5 of 53
Capital timeline
Latest events
- Federal contractDefense · SBIR Phase II Topic A234-P015. 873 Authority.$1.9M
- Federal grantDefense · Phase II · SBIR Phase II Topic A234-P015. 873 Authority.$1.9M
- Private capital raisedForm D · SEC · 1st filing$1M
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 53 peers
Line = medianEnergy · Material
- Federal grants#4 · top 8%
- Granted patents#5 · 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
From SEC Form D filings- Constantin Ionel StefanExecutive OfficerNamed in SEC Form D filings
- Donald R. DixonDirectorNamed in SEC Form D filings
- Jonathan BornsteinExecutive OfficerNamed in SEC Form D filings
- Justin R. MirroDirectorNamed in SEC Form D filings
- Kang SunExecutive Officer, DirectorNamed in SEC Form D filings
- Sandra WallachExecutive OfficerNamed in SEC Form D filings
Show all 8 people
- Steven R. ChuDirectorNamed in SEC Form D filings
- Wen R. HsiehDirectorNamed in SEC Form D filings
What it has protected
USPTO · 5 granted of 5- GrantedCompositionally Modified Silicon Coatings For Use In A Lithium Ion Battery AnodeUSPTOUS 12,176,526
- GrantedTemplate Electrode Structures For Depositing Active MaterialsUSPTOUS 11,996,550
- GrantedStructurally Controlled Deposition Of Silicon Onto NanowiresUSPTOUS 11,855,279
Show all 5 patent records
- Compositionally Modified Silicon Coatings For Use In A Lithium Ion Battery AnodeDec 24, 2024 · US 12,176,526Granted
- Template Electrode Structures For Depositing Active MaterialsMay 28, 2024 · US 11,996,550Granted
- Structurally Controlled Deposition Of Silicon Onto NanowiresDec 26, 2023 · US 11,855,279Granted
- Stabilized, Prelithiated Silicon Oxide Particles For Lithium Ion Battery AnodesOct 10, 2023 · US 11,784,307Granted
- Deposition On Two Sides Of A WebJul 4, 2023 · US 11,695,125Granted
Related companies, and why
- VIELETECH INCSimilar federal contract value in Energy · $2.2M in contracts
- Xendee CorpSimilar federal contract value in Energy · $2.1M in contracts
- FC RENEW, LLCSimilar federal contract value in Energy · $2M in contracts
- KULR Technology CorpSimilar federal contract value in Energy · $1.8M in contracts
- ANALYSIS AND MEASUREMENT SERVICES CORPORATIONSimilar federal contract value in Energy · $1.8M in contracts
- CERIUM LABORATORIES LLCSimilar federal contract value in Energy · $1.8M 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 .