Zinc Battery Market, By Chemistry Type, By Application, By End Use, By Region
Market Synopsis
The global zinc battery market size was USD 0.78 Billion in 2025 and is expected to register a revenue CAGR of 28.0% during the forecast period. Market revenue growth is supported by zinc chemistry's fundamental safety advantage over lithium-ion for stationary storage: Eos Energy Enterprises' zinc-bromine batteries are non-flammable and do not require active cooling to function, a property that underpinned the U.S. Department of Energy's decision to close a loan guarantee of up to USD 305.3 million in November 2024 to finance manufacturing lines expected to produce over 8 gigawatt-hours of storage capacity annually. Eos reported record second quarter 2026 revenue of USD 68.8 million, up 351% year over year, with a backlog expanding to USD 807 million. Zinc-bromine flow and hybrid batteries, zinc-ion batteries, and zinc-air batteries are the chemistry categories through which zinc battery demand is expressed, serving utility and grid-scale long-duration storage, defense and critical infrastructure, residential and behind-the-meter storage, and microgrid and commercial backup applications. These are some of the key factors driving revenue growth of the market.
Eos Energy Enterprises, Salient Energy, Zinc8 Energy Solutions, eZinc, and Urban Electric Power are among the commercial suppliers that constitute the zinc battery market, spanning zinc-bromine flow systems, zinc-ion residential and grid batteries, and zinc-air long-duration storage. For instance, in July 2026, Eos Energy Enterprises was awarded a Golden Dome for America contract by the U.S. Department of War to deploy its Eos Z3 zinc-based long-duration energy storage technology at a critical defense installation, an award highlighted by President Trump at a defense summit in Carlisle, Pennsylvania. Salient Energy's zinc-ion battery became the first of its kind tested by Underwriters Laboratories, with results showing the cells do not experience thermal runaway or produce toxic or explosive gases even under extreme heat, puncture, or overcharging conditions.
However, zinc battery manufacturers continue to report substantial per-unit losses even as revenue scales rapidly, with Eos posting a gross loss of USD 48.8 million against USD 68.8 million in second quarter 2026 revenue, a negative 71% gross margin that, while improving 132 percentage points year over year, illustrates how far zinc battery manufacturing costs remain from profitability at current production volumes. Zinc metal and electrolyte feedstock pricing has also moved higher, driven by base metal demand growth and refining capacity constraints, adding cost pressure at the same time manufacturers are trying to bring unit economics down through production scale. These factors substantially limit zinc battery market growth over the forecast period.
Segment Insights
Zinc-bromine flow and hybrid batteries segment is expected to account for a significantly large revenue share in the global zinc battery market during the forecast period
Based on chemistry type, the global zinc battery market is segmented into zinc-bromine flow and hybrid batteries, zinc-ion batteries, and zinc-air batteries. The zinc-bromine flow and hybrid batteries segment commands the largest revenue share because Eos Energy Enterprises has scaled zinc-bromine manufacturing furthest among zinc chemistry developers, supported by a USD 305.3 million Department of Energy loan guarantee and a backlog that reached USD 807 million as of the second quarter of 2026.
The zinc-ion batteries segment is expected to register a rapid revenue growth rate in the global zinc battery market over the forecast period. Salient Energy's completion of Underwriters Laboratories safety testing, confirming its zinc-ion cells do not experience thermal runaway or produce toxic or explosive gases under extreme conditions, represents the first UL validation of a zinc-ion chemistry, a milestone the company needed before its cells could move into residential energy storage products at commercial scale.
Regional Insights
Asia Pacific
The Asia Pacific zinc battery market is expected to register rapid revenue growth over the forecast period, though from a smaller base than North America given the region's continued concentration on lithium-ion manufacturing scale for both electric vehicle and grid storage applications. China's dominant position in zinc mining and refining, supplying a significant share of the high-purity zinc and electrolytic manganese dioxide used globally in zinc battery cell manufacturing, gives the region an upstream supply chain role even where dedicated zinc battery cell assembly remains limited relative to North America. Japanese and South Korean battery makers have demonstrated zinc-ion pouch cell prototypes, though large-scale commercial production in the region has not yet reached the manufacturing scale achieved by North American zinc-bromine producers.
Europe
The European zinc battery market is expected to register rapid revenue growth over the forecast period, supported by Eos Energy's binding Master Supply Agreement with CAPAC Energy establishing an exclusive distribution partnership across Germany, Austria, and Switzerland with an initial 750 megawatt-hour commitment and potential to scale to 2 gigawatt-hours through 2031. Germany's target of reaching 80% renewable electricity generation by 2030 continues to anchor demand for long-duration storage technologies, including non-lithium chemistries such as zinc-bromine and zinc-air, that can provide multi-hour discharge duration without the fire suppression infrastructure lithium-ion installations require under expanding European safety codes.
Cell Chemistry North America — Largest Revenue Share, 2025
Based on regional analysis, the zinc battery market in North America accounted for the largest revenue share in 2025. The United States is the dominant country, home to Eos Energy Enterprises' Pittsburgh headquarters and Turtle Creek and Thorn Hill, Pennsylvania manufacturing facilities, financed in part by a U.S. Department of Energy loan guarantee of up to USD 305.3 million closed in November 2024. Eos was awarded a Golden Dome for America contract by the U.S. Department of War in July 2026 to deploy its Eos Z3 zinc-based long-duration energy storage technology at a critical defense installation, and the company reported record second quarter 2026 revenue of USD 68.8 million, up 351% year over year. Canada hosts Salient Energy, Zinc8 Energy Solutions, and eZinc, all members of the Zinc Battery Initiative founded under the International Zinc Association, giving the country a concentrated cluster of zinc-ion and zinc-air battery developers alongside the United States' zinc-bromine manufacturing scale.
Latin America
The zinc battery market in Latin America is expected to register limited revenue growth from a low base, with Peru's significant zinc mining and refining capacity representing the region's primary connection to the global zinc battery supply chain rather than domestic cell manufacturing or deployment. Regional zinc battery demand for grid storage and microgrid applications remains dependent on imported systems from North American manufacturers, with no domestic zinc battery cell assembly capacity currently established in the region.
Middle East and Africa
The zinc battery market in the Middle East and Africa is expected to register limited revenue growth from a low base, with the region's involvement currently limited to potential future grid storage and microgrid deployment rather than any domestic zinc battery manufacturing capacity. Regional demand for zinc-based long-duration storage systems remains dependent on imports from North American and European suppliers, with early-stage interest concentrated in microgrid applications for areas with limited grid reliability.
Indicative Price Trends
| Product / Grade | Q2 2025 | Q2 2026 | Direction | Key Driver |
|---|---|---|---|---|
| Zinc-bromine flow battery system (USD/kWh) | 285 | 245 | â–¼ Declining | Thorn Hill Line 2 production ramp and manufacturing scale |
| Zinc-ion residential battery pack (USD/kWh) | 420 | 365 | â–¼ Declining | UL9540A-certified product entering early commercial scale |
| Zinc-air long-duration storage system (USD/kWh) | 195 | 168 | â–¼ Declining | Modular system manufacturing scale |
| Zinc metal/electrolyte feedstock (USD/kg) | 2.85 | 3.10 | â–² Rising | Base metal demand growth and refining capacity constraints |
| UL9540A certification & testing (USD/model) | 145000 | 128000 | â–¼ Declining | Established test protocol and repeat-certification efficiency |
Strategic Developments
Competitive Landscape
| Company | Country | Specialisation | Position / Scale | Faradex Assessment |
|---|---|---|---|---|
| Eos Energy Enterprises | USA | Zinc-bromine long-duration energy storage (Eos Z3) | Q2 2026 revenue USD 68.8M; DOE USD 305.3M loan guarantee | HIGH |
| Salient Energy | Canada | Zinc-ion batteries for residential/grid storage | First UL-tested zinc-ion chemistry; non-flammable | MEDIUM-HIGH |
| Zinc8 Energy Solutions | Canada | Zinc-air long-duration storage for microgrids | Modular systems for backup and microgrid applications | MEDIUM |
| eZinc | Canada | Zinc-air batteries for behind-the-meter storage | Zinc Battery Initiative founding member | MEDIUM |
| Urban Electric Power | USA | Rechargeable zinc-manganese dioxide batteries | Stationary storage battery developer | LOWER |
| EnZinc | USA | Zinc anode technology for grid/backup storage | Zinc anode materials developer | LOWER |
| Energizer Holdings | USA | Traditional zinc-carbon/alkaline primary batteries | Legacy zinc chemistry consumer battery scale | LOWER |
Key Questions Answered
- 01What is the global zinc battery market size in 2025 and what CAGR is expected during 2026-2035?
- 02What U.S. Department of Energy loan guarantee did Eos Energy Enterprises receive and what does it finance?
- 03What Golden Dome for America contract did Eos Energy win in July 2026 and what technology does it deploy?
- 04What UL safety testing milestone did Salient Energy's zinc-ion battery achieve?
- 05Which zinc battery chemistry segment is expected to register the fastest revenue growth rate and why?
- 06Why is North America the leading region for zinc battery revenue and which companies drive that share?
- 07How does Eos Energy's gross margin trend reflect the maturity of zinc-bromine battery manufacturing costs?
- 08What safety advantages does zinc battery chemistry offer over lithium-ion for stationary and defense applications?
- 09How does rising zinc metal and electrolyte feedstock pricing affect zinc battery manufacturers' unit economics across chemistries?
- 10Why does defense procurement validation matter differently for zinc battery adoption than a utility power purchase agreement?
Table of Contents
Scope of Research
This report covers the global zinc battery market across all major segments and geographic regions. Primary research combines panel conversations with industry experts and is cross-referenced against company annual reports and government agency data. All market size figures use 2025 as the base year with a 2026-2035 forecast period.
