Anthro Energy
Anthro Energy is a U.S. battery materials company that develops proprietary polymer electrolytes (Anthro Proteus) enabling safer, higher energy density lithium-ion cells for consumer electronics, automotive, defense, and robotics customers, with dual manufacturing sites in California and Kentucky.
- Company typePrivate
- Founded2021
- HeadquartersSan Jose, United States
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Anthro Energy does
Anthro Energy is a U.S.-based battery materials company developing advanced polymer electrolytes for next-generation lithium-ion cells. Founded in 2021 as a spinout of Stanford University (with co-founders David Mackanic, PhD, and Joe Papp, PhD) and headquartered in Alameda, California, the company's flagship technology, Anthro Proteus, is a polymer electrolyte platform that converts liquid-phase precursors into solid and semi-solid state electrolytes during the battery formation step. The platform is engineered as a 100% drop-in replacement for conventional liquid electrolytes, claiming up to 10x improved toughness, resistance to swell, short circuit, impact, and fire, and up to 35% improved energy density by enabling silicon-anode chemistries, while requiring no changes to existing giga-scale manufacturing lines.
The company operates two product lines: (1) electrolyte solutions sold to battery cell manufacturers, and (2) proprietary battery cells marketed under three sub-brands — Anthro Protect (rugged/safety-focused), Anthro Outlast (high silicon content for energy density), and Anthro Adapt (flexible and structural form factors). An internal AI/ML platform called Anthro Atlas accelerates electrolyte discovery and battery design. Anthro's go-to-market is enterprise field sales targeting defense contractors, automotive OEMs, consumer electronics manufacturers, and robotics/physical AI customers, complemented by a strategic partnership with EnPower, Inc. for U.S. cell manufacturing.
Anthro has raised approximately $27.2 million in equity across seed and Series A rounds and secured approximately $48.8 million in non-dilutive federal and state support, including a $24.9 million DOE Bipartisan Infrastructure Law grant, $18.4 million in IRA Section 48C investment tax credits, and a $5.5 million California Energy Commission PowerForward grant. It is building a 25 GWh, 12,000-metric-ton-per-year electrolyte production facility in Louisville, Kentucky, alongside its Alameda headquarters/production site, positioning as the first U.S.-owned large-scale advanced electrolyte manufacturer with IRA/30D-compliant domestic supply chain.
Anthro Energy firmographics
Firmographics- Name
- Anthro Energy
- Legal name
- Anthro Energy, Inc.
- Website
- https://anthroenergy.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Anthro Energy is a U.S. battery materials company that develops proprietary polymer electrolytes (Anthro Proteus) enabling safer, higher energy density lithium-ion cells for consumer electronics, automotive, defense, and robotics customers, with dual manufacturing sites in California and Kentucky.
- Ownership category
- akta.pro rank
Anthro Energy industry classification
Industry- Product category
- Advanced Battery Materials & Cells
- NAICS
- Battery Manufacturing (33591), Electrical Equipment, Appliance, and Component Manufacturing (335), Other Electrical Equipment and Component Manufacturing (3359)
- SIC
- Electronic Components & Accessories (3670), Electronic & Other Electrical Equipment (No Computer Equip) (3600)
- akta.pro primary industry
- Electrolytes & Additives Manufacturing (Liquid, Gel, Solid-State) (EUAFABAD)
- akta.pro secondary industries
- Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH) (IMAGAHAA), Solid-State Battery Materials & Cell Manufacturing (EUAFABAH), Battery & Energy Storage High-Purity Chemicals (Electrolyte salts/solvents, additives) (IMAEAKAM), Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)
Keywords
Where Anthro Energy is headquartered
LocationHeadquarters
- HQ city
- San Jose
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Anthro Energy business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Technology or R&D, Infrastructure, Personnel, Marketing or Sales
Revenue model
- Electrolyte Solutions: Sale of advanced polymer electrolytes to battery cell manufacturers. Anthro Proteus electrolytes replace conventional liquid electrolytes and are sold as a drop-in solution to cell manufacturers for integration into their production processes.
- Battery Cells: Sale of proprietary battery cells incorporating Anthro Proteus technology. Product lines include Anthro Protect (rugged applications), Anthro Outlast (high energy density), and Anthro Adapt (flexible/structural).
Go-to-market motion1 record
Distribution channels1 record
Marketing channels6 records
Anthro Energy product offering
Product offeringCore offering
Anthro Energy develops and sells advanced polymer electrolytes and finished lithium-ion battery cells built around its proprietary Anthro Proteus platform. Electrolyte solutions are sold as drop-in replacements for liquid electrolytes to battery cell manufacturers, while finished cells are offered under three product lines (Anthro Protect, Anthro Outlast, Anthro Adapt) for defense, automotive, consumer electronics, and micromobility applications.
Differentiator
Problem solved
Functional benefit
Brands
- Anthro Protect: Ultra rugged, high-performance battery cells for improved safety and stability even in extreme operating conditions.
- Anthro Outlast
- Anthro Adapt
- Anthro Atlas
Products and services
- Anthro Proteus Electrolyte Solutions Advanced drop-in polymer electrolytes built on the Anthro Proteus platform that replace conventional liquid electrolytes in lithium-ion cells. Compatible with giga-scale manufacturing lines, enabling solid/semi-solid state safety benefits, up to 35% higher energy density, and next-generation chemistries such as silicon anodes. Sold to battery cell manufacturers for integration into their production processes.
- Anthro Protect Battery Cells Ultra rugged, high-performance battery cells incorporating Anthro Proteus technology, designed for improved safety and stability in extreme operating conditions. Targeted at defense and other mission-critical applications.
- Anthro Outlast Battery Cells High silicon-content battery cells incorporating Anthro Proteus technology that deliver unprecedented energy density without sacrificing safety, stability, or cycle life. Targeted at applications requiring maximum runtime such as EVs, consumer electronics, and high-energy defense systems.
- Anthro Adapt Battery Cells Novel flexible and structural battery cells incorporating Anthro Proteus technology that deliver previously unattainable form factors for innovative device designs. Targeted at wearables, medical devices, and structurally integrated battery applications.
Quantifiable outcome
- Up to 35% improved energy density enabling next-gen chemistries like silicon anodes
- +3 more outcomes
Companies that use Anthro Energy
Customer profileSegments1 record
Ideal customer profiles3 records
Anthro Energy technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability3 records
Feature5 records
Anthro Energy partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- EnPower Inc.coreLong-term, multi-phase partnership to develop and manufacture high-performance lithium-ion cells in the U.S. for defense applications, robotics, autonomous systems, and physical AI. Aims to create a fully domestic battery supply chain with capacity scaling beyond 750 MWh, targeting cells exceeding 350 Wh/kg for high-energy applications.
- Stanford UniversitycoreAnthro Energy spun out of Stanford University research in 2021. Co-founders David Mackanic and Joe Papp developed core technology through academic research at Stanford and UC Berkeley
- US ArmycorexTech Program participant achieving Finalist status in 2022. Company developing batteries for defense applications including mission critical operations
Scale indicators16 records
Recent moves8 records
Expansion highlights6 records
Anthro Energy competitors and assessment
Company assessmentDirect peers
- Sila Nanotechnologies: Sila Nanotechnologies develops silicon-anode battery materials that boost energy density in lithium-ion cells. Highly comparable to Anthro's Anthro Outlast high-silicon product line and its material-as-drop-in business model selling into cell manufacturers.
- Solid Power: Solid Power develops sulfide-based solid-state batteries and electrolyte materials. Anthro Energy's VP Manufacturing previously led electrolyte operations at Solid Power, and both target next-gen battery chemistries with electrolyte innovation as the core moat.
- QuantumScape: QuantumScape develops solid-state lithium-metal batteries targeting automotive OEMs. Comparable as a next-generation battery technology company pursuing safety and energy density improvements through novel electrolyte/cell architecture.
- Factorial Energy: Factorial Energy develops lithium-metal solid-state battery cells. Anthro's Manager of Electrolytes (Jia Du) previously led R&D at Factorial, and both target similar automotive and consumer applications with next-gen chemistries enabled by novel electrolyte formulations.
- EnPower Inc. EnPower is a U.S.-based lithium-ion cell manufacturer specializing in high-energy-density cells for defense and specialty applications. Anthro's announced multi-phase MOU partnership targets 750+ MWh of jointly developed cell production, making them both partners and direct competitors in advanced cell manufacturing.
- Amprius Technologies: Amprius manufactures silicon-anode lithium-ion batteries delivering high energy density for aviation, defense, and EV applications. Directly comparable to Anthro Outlast on silicon-anode chemistry and shared defense end-market focus.
- 24M Technologies: 24M develops semi-solid-state battery technology with novel electrolyte and electrode architecture. Comparable to Anthro's polymer electrolyte approach in targeting safer, higher-energy-density cells without requiring full solid-state manufacturing overhauls.
Emerging players
- Nanoramic Laboratories: Nanoramic develops advanced electrode coatings and electrolyte additives for lithium-ion batteries. Comparable as a materials-focused battery innovator targeting drop-in improvements to existing cell manufacturing — overlapping with Anthro's electrolyte-as-drop-in model.
- Group14 Technologies: Group14 manufactures silicon battery anode materials (silanodes) enabling higher energy density in lithium-ion cells. Comparable as a battery-materials-as-drop-in supplier targeting the same silicon-anode upgrade cycle that Anthro Outlast addresses.
- Mitra Chem: Mitra Chem uses AI-driven materials discovery to develop cathode and electrolyte materials for lithium-ion batteries. Comparable to Anthro Energy through its parallel use of machine learning (Anthro Atlas) to accelerate battery materials development, and as a U.S.-based, IRA-aligned battery materials startup.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Anthro Energy social profiles
Digital presenceAnthro Energy compliance and trust
Trust signalCompliance1 record
Anthro Energy financial estimates
Financial estimateRevenue estimate
Valuation estimate
Anthro Energy leadership team
Management profileNumber of profiles
Profiles12 records
Anthro Energy funding detail
Funding detailFunding overview
Funding rounds6 records
Investors12 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Anthro Energy M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Anthro Energy
What does Anthro Energy do?
Anthro Energy develops and sells advanced polymer electrolytes and finished lithium-ion battery cells built around its proprietary Anthro Proteus platform. Electrolyte solutions are sold as drop-in replacements for liquid electrolytes to battery cell manufacturers, while finished cells are offered under three product lines (Anthro Protect, Anthro Outlast, Anthro Adapt) for defense, automotive, consumer electronics, and micromobility applications.
Is Anthro Energy a public or private company?
Anthro Energy is a private company. It is classified as venture growth investor backed and is currently operating.
When was Anthro Energy founded?
Anthro Energy was founded in 2021. It employs 51 to 100 people.
Where is Anthro Energy based?
Anthro Energy is headquartered in San Jose, United States, in the North America region.
How does Anthro Energy make money?
Two revenue lines are on record. Electrolyte Solutions are the primary driver. The others are battery Cells.
Who are Anthro Energy's main competitors?
Direct peers on record are Sila Nanotechnologies, Solid Power, QuantumScape, Factorial Energy, EnPower Inc., Amprius Technologies and 24M Technologies. Emerging players are Nanoramic Laboratories, Group14 Technologies and Mitra Chem.
Does Anthro Energy have an API?
No public API is recorded for Anthro Energy.
What industry is Anthro Energy in?
Anthro Energy's product category is Advanced Battery Materials & Cells. Its primary akta.pro industry code is EUAFABAD, Electrolytes & Additives Manufacturing (Liquid, Gel, Solid-State), with a secondary code of IMAGAHAA, Battery Cells (Li-ion, LFP, Sodium-ion, Lead-acid, NiMH). Its NAICS code is 33591 and its SIC code is 3670.