Global Vanadium Redox Flow Battery (VRFB) Felt Market 2026 by Manufacturers, Regions, Type and Application, Forecast to 2032

According to our (Global Info Research) latest study, the global Vanadium Redox Flow Battery (VRFB) Felt market size was valued at US$ 75.11 million in 2025 and is forecast to a readjusted size of US$ 359 million by 2032 with a CAGR of 22.0% during review period.
Vanadium redox flow battery (VRFB) felt is a core electrode material used in VRFB systems, mainly comprising carbon felt and graphite felt. It is made from carbon fibers forming a porous structure, processed through needling, thermal treatment, or graphitization. The felt provides abundant electrochemical reaction sites, facilitates electron conduction, and ensures effective electrolyte penetration, while maintaining chemical stability and corrosion resistance. Carbon felt is flexible with high porosity, supporting efficient ion transport, whereas graphite felt, after high-temperature graphitization, offers higher electrical conductivity and durability. As a critical component of VRFBs, the felt significantly influences the efficiency, energy output, and long-term cycling stability of the battery.
Key Findings
Global VRFB felt output reached 2.91 million square meters in 2025
The average selling price reached US$25 per square meter in 2025
Graphite felt remained the principal electrode substrate in commercial vanadium redox flow battery stacks
Utility scale storage constituted the principal demand base for VRFB felt
Asia Pacific led production expansion and project driven demand for VRFB felt
Market Trends
VRFB felt is evolving from a general-purpose carbon textile into a stack-specific electrochemical component. Product development focuses on reducing through-plane and contact resistance, increasing vanadium-ion reaction activity, improving electrolyte wettability and maintaining sufficient permeability under compression. Graphitization improves conductivity, chemical purity and corrosion resistance, while subsequent activation introduces surface functional groups and additional reaction sites; the ability to balance these two processes increasingly differentiates high-performance products from conventional industrial felt. Suppliers are also developing thinner felts, narrower thickness tolerances, controlled fiber orientation, graded pore structures and hybrid felt-cloth electrodes to support higher current density and reduced stack volume. JNTG offers multiple graphite-felt thicknesses and is developing approximately 1 mm thin-film material, while SGL Carbon provides PAN-based, rayon-based and mixed-fiber felts with differentiated conductivity, surface area and compressibility. AvCarb has introduced activation and lot-level electrochemical quality assurance, and Toyobo continues to develop carbon-fiber electrode structures incorporating carbon particles and carbonized binders. Commercial demand is consequently shifting toward activated, prequalified and precision-cut products supported by batch-level measurements of electrical resistance, permeability, impurity content and electrochemical performance. Wider rolls and roll-to-roll processing are becoming increasingly important as stack manufacturers enlarge cell areas and move from pilot production to continuous project delivery.
Market Dynamics
Drivers
The expansion of long-duration stationary energy storage is the principal demand driver for VRFB felt. Increasing deployment of wind and solar power raises the need for storage systems capable of multi-hour discharge, frequent cycling, high operational safety and independent configuration of power and energy capacity. VRFBs are well suited to grid-side peak shifting, renewable-energy integration, capacity support, microgrids and industrial backup applications, creating direct demand for porous carbon electrodes in every cell of the stack. The U.S. Department of Energy continues to target substantial cost reductions for storage systems delivering ten or more hours, while China is advancing large-scale new energy storage construction and the standardization of vanadium flow battery systems. GB/T 32509-2025 and GB/T 33339-2025 entered into force on January 1, 2026, strengthening common technical and testing requirements for commercial systems. As project developers require higher stack efficiency and longer operating life, low-resistance and uniformly activated felt has become increasingly important to system performance and lifecycle economics.
Restraints
VRFB felt demand remains constrained by the smaller commercial installed base of flow batteries compared with lithium-ion storage and by the long development cycle of utility-scale energy projects. Project economics are sensitive to vanadium electrolyte costs, stack manufacturing costs, balance-of-system expenditure, financing conditions and annual utilization, and delays in project approval or grid connection can create uneven electrode procurement. Material qualification is another significant restraint. Changes in fiber precursor, graphitization degree, surface chemistry, thickness, permeability or compression response can affect voltage efficiency, pressure drop, pumping consumption and long-term degradation. Stack manufacturers therefore tend to retain electrode grades that have completed extended cell and stack testing, increasing the time required for new suppliers or new product specifications to enter mass production. The flow battery supply chain also remains less mature and less standardized than the lithium-ion supply chain, limiting economies of scale in carbon-felt manufacturing, activation and converting.
Opportunities
The strongest product opportunities are concentrated in electrodes that enable higher stack power density and lower lifecycle cost. Thin graphite felt, low-resistance activated felt, gradient-porosity electrodes, laser-perforated structures, woven carbon fabrics and felt-cloth hybrids can improve electrolyte distribution, reduce concentration polarization and decrease stack volume. Positive and negative electrodes may also adopt differentiated surface treatments because the two vanadium redox couples exhibit different reaction kinetics and degradation mechanisms. Additional value can be created through stack-specific dimensions, pre-compressed or shaped electrodes, surface functionalization, integrated quality certification and precision-cut electrode kits. Localization of PAN precursor, continuous carbonization, graphitization and activation provides further opportunities to reduce lead times and improve batch consistency. As the installed base expands, replacement felt, stack refurbishment and maintenance-related electrode demand will gradually supplement demand from newly manufactured stacks. Suppliers capable of linking material microstructure with cell-level pressure drop, voltage efficiency and cycling performance are positioned to capture a larger share of value than producers of untreated commodity felt.
Challenges
The central technical challenge is balancing conductivity, electrochemical activity, permeability and durability within one porous structure. Higher graphitization reduces electrical resistance and improves chemical stability but can decrease surface functional groups and electrolyte affinity. Strong activation increases active surface area and reaction kinetics but may weaken fibers, enlarge material variation or accelerate surface degradation. Greater compression lowers contact resistance but reduces pore volume and permeability, increasing pressure drop and pumping energy; insufficient compression produces poor electrical contact and nonuniform current distribution. Manufacturers must also control metallic impurities, fiber shedding, thickness deviation, areal-weight variation, activation depth and property uniformity across wide rolls. These requirements become more demanding as cell area and stack current increase. Long-term stability of wettability and surface functionality is particularly important because declining hydrophilicity or chemical aging can raise charge-transfer resistance during cycling. Continuous production therefore requires close integration of process control, physical-property testing and electrochemical verification.
Industry Chain Analysis
The upstream segment includes PAN fiber, oxidized PAN fiber, rayon fiber, pitch-based fiber, binders, carbon particles, treatment gases, activation chemicals and electricity for high-temperature processing. PAN-based fiber is the principal precursor for commercial VRFB felt because it combines mechanical strength, processability, availability and electrical performance, while rayon-based and mixed-fiber structures are used to obtain different surface areas, compressibility and pore characteristics. Midstream production covers fiber opening, web forming, needle punching, stabilization, carbonization, graphitization, purification, thermal or chemical activation, washing, heat setting, inspection, slitting and precision cutting. Graphitization, activation and electrochemical quality control are the principal value-creation stages because they determine conductivity, purity, wettability, reaction activity and production consistency. Downstream customers include electrode converters, cell and stack manufacturers, VRFB system integrators, utility and renewable-energy project developers, engineering contractors and maintenance providers. Cooperation between felt suppliers and stack developers is increasing as electrode thickness, compression ratio, permeability and surface treatment must be coordinated with flow-field geometry, membrane characteristics, electrolyte formulation and operating current density.
Segment Insights
Graphite felt is the principal product segment for commercial VRFB stacks. High-temperature graphitization gives the material lower electrical resistance, higher carbon purity and stronger chemical stability in acidic vanadium electrolyte. Commercial graphite felt is differentiated by precursor type, thickness, areal weight, bulk density, impurity concentration, compressibility, resistance and activation method. Untreated graphite felt provides conductivity and durability but generally requires surface activation to improve hydrophilicity and vanadium-ion reaction kinetics. Higher-performance grades combine a conductive graphitized fiber backbone with controlled thermal or chemical oxidation, enabling low internal resistance while retaining sufficient active surface area. Product development is moving toward thinner, more uniform and more highly engineered structures rather than simply increasing graphitization temperature.
Carbon felt retains an important position as a lower-temperature processed electrode material and as an intermediate substrate for subsequent graphitization or activation. It generally has higher electrical resistance than graphite felt but can retain more surface functional groups and may offer advantages in wettability, processing flexibility and cost. Selection between carbon felt and graphite felt depends on stack architecture, operating current density, compression design, target efficiency and customer qualification. Carbon cloth and other woven carbon-fiber structures remain smaller product categories but offer potential for thin cells, structured flow fields and higher-current-density designs. The market is therefore developing from a two-category material structure toward a broader portfolio of activated felt, hybrid electrodes and application-specific carbon-fiber architectures.
Downstream Market Opportunities
Utility-scale energy storage constitutes the primary downstream market for VRFB felt because centralized grid-side and generation-side projects require large electrode areas across multiple stacks. Renewable-energy integration is another important demand scenario, particularly for wind and solar projects requiring peak shifting, output smoothing, curtailment reduction and multi-hour energy transfer. Commercial and industrial facilities, data centers, remote microgrids, islands and critical infrastructure provide additional opportunities where operational safety, long service life and flexible discharge duration are more important than high gravimetric energy density. Larger cell areas and higher stack ratings increase demand for wide-roll material, precise cutting and consistent batch performance, while modular distributed systems can support standardized electrode dimensions. The long operating life of VRFB systems also creates a future market for stack refurbishment and electrode replacement, although new-system manufacturing currently represents the main source of consumption.
Regional Insights
Asia-Pacific is the principal production and demand region for VRFB felt. China has established a supply chain covering precursor fiber, carbon and graphite felt, activation, membranes, bipolar plates, electrolyte, stacks and system integration. Large-scale long-duration storage construction and the localization of critical stack components support demand for domestic electrode materials. Japan maintains long-standing capabilities in carbon-fiber electrode development, South Korea participates through specialized activated graphite-felt suppliers, and Taiwan supplies graphite electrodes and other electrochemical carbon materials. Regional competition increasingly combines production scale with stack-level validation, continuous-processing capability and close technical cooperation with VRFB system manufacturers.
Europe and North America retain established engineered-carbon suppliers with capabilities in high-purity felt, surface activation, wide-roll production and application engineering. Competition in these regions emphasizes validated electrochemical performance, product traceability, customized specifications and long-term supply reliability. Long-duration storage demonstrations, grid resilience, renewable-energy integration and domestic supply-chain programs provide continuing demand opportunities. However, the regional market remains project driven, and procurement volumes can fluctuate with demonstration funding, utility approval and construction schedules. International suppliers increasingly compete with Asian producers on total stack performance, qualification support and lifecycle value rather than only on material price.
Competitive Landscape Analysis
The competitive landscape includes JNTG, Sichuan Jiangyou Runsheng Graphite Felting, Shenyang Fulai Carbon Fiber, SGL Carbon, Jiangsu Mige New Material, Liaoning JinGu Carbon Materials, Hangzhou Woken New Material Technology, Shanghai Qijie New Materials, Zhejiang Huarong Technology, Toyobo, AvCarb, Chemshine Carbon, Shanghai Carbon Industry, CGT Carbon and CeTech. The market combines established international engineered-carbon suppliers, specialized Asian electrochemical-material manufacturers and Chinese carbon-felt producers expanding into VRFB-specific products. SGL Carbon, JNTG, AvCarb, CGT Carbon and CeTech offer dedicated redox-flow or vanadium-flow electrode materials, while several Chinese suppliers have established continuous carbonization, graphitization, activation and converting capabilities for domestic stack customers. Competitive differentiation is based on compressed through-plane resistance, activation uniformity, electrolyte wettability, impurity control, thickness consistency, permeability, roll width, precision converting and long-term electrochemical durability. International suppliers generally compete through mature material platforms, application engineering and international service, while Chinese suppliers benefit from integrated manufacturing, cost control, proximity to major VRFB projects and rapid customization. Liaoning Aoyida Advanced Materials, Inc. is another relevant regional manufacturer supplying carbon-felt electrodes for vanadium flow batteries.
Report Scope
This report is a detailed and comprehensive analysis for global Vanadium Redox Flow Battery (VRFB) Felt market. Both quantitative and qualitative analyses are presented by manufacturers, by region & country, by Type and by Application. As the market is constantly changing, this report explores the competition, supply and demand trends, as well as key factors that contribute to its changing demands across many markets. Company profiles and product examples of selected competitors, along with market share estimates of some of the selected leaders for the year 2025, are provided.
Key Features:
Global Vanadium Redox Flow Battery (VRFB) Felt market size and forecasts, in consumption value ($ Million), sales quantity (K Sqm), and average selling prices (US$/Sqm), 2021-2032
Global Vanadium Redox Flow Battery (VRFB) Felt market size and forecasts by region and country, in consumption value ($ Million), sales quantity (K Sqm), and average selling prices (US$/Sqm), 2021-2032
Global Vanadium Redox Flow Battery (VRFB) Felt market size and forecasts, by Type and by Application, in consumption value ($ Million), sales quantity (K Sqm), and average selling prices (US$/Sqm), 2021-2032
Global Vanadium Redox Flow Battery (VRFB) Felt market shares of main players, shipments in revenue ($ Million), sales quantity (K Sqm), and ASP (US$/Sqm), 2021-2026
The Primary Objectives in This Report Are:
To determine the size of the total market opportunity of global and key countries
To assess the growth potential for Vanadium Redox Flow Battery (VRFB) Felt
To forecast future growth in each product and end-use market
To assess competitive factors affecting the marketplace
This report profiles key players in the global Vanadium Redox Flow Battery (VRFB) Felt market based on the following parameters - company overview, sales quantity, revenue, price, gross margin, product portfolio, geographical presence, and key developments. Key companies covered as a part of this study include JNTG, Sichuan Jiangyou Runsheng Graphite Felting, Shenyang Fulai Carbon Fiber, SGL Carbon, Jiangsu Mige New Material, Liaoning JinGu Carbon Materials, Hangzhou Woken New Material Technology, Shanghai Qijie New Materials, Zhejiang Huarong Technology, Toyobo, etc.
This report also provides key insights about market drivers, restraints, opportunities, new product launches or approvals.
Vanadium Redox Flow Battery (VRFB) Felt market is split by Type and by Application. For the period 2021-2032, the growth among segments provides accurate calculations and forecasts for consumption value by Type, and by Application in terms of volume and value. This analysis can help you expand your business by targeting qualified niche markets.
Market Segmentation
Market segment by Type
Graphite Felt
Carbon Felt
Market segment by Base Material
PAN-based
Rayon-based
Others
Market segment by Thickness
Thickness <3mm
Thickness 3mm–6mm
Thickness >6mm
Market segment by Application
Utilities
Renewable Energy
Others
Major players covered
JNTG
Sichuan Jiangyou Runsheng Graphite Felting
Shenyang Fulai Carbon Fiber
SGL Carbon
Jiangsu Mige New Material
Liaoning JinGu Carbon Materials
Hangzhou Woken New Material Technology
Shanghai Qijie New Materials
Zhejiang Huarong Technology
Toyobo
AvCarb
Chemshine Carbon
Shanghai Carbon Industry
CGT Carbon
CeTech
Market segment by region, regional analysis covers
North America (United States, Canada, and Mexico)
Europe (Germany, France, United Kingdom, Russia, Italy, and Rest of Europe)
Asia-Pacific (China, Japan, Korea, India, Southeast Asia, and Australia)
South America (Brazil, Argentina, Colombia, and Rest of South America)
Middle East & Africa (Saudi Arabia, UAE, Egypt, South Africa, and Rest of Middle East & Africa)
Chapter Outline
Chapter 1, to describe Vanadium Redox Flow Battery (VRFB) Felt product scope, market overview, market estimation caveats and base year.
Chapter 2, to profile the top manufacturers of Vanadium Redox Flow Battery (VRFB) Felt, with price, sales quantity, revenue, and global market share of Vanadium Redox Flow Battery (VRFB) Felt from 2021 to 2026.
Chapter 3, the Vanadium Redox Flow Battery (VRFB) Felt competitive situation, sales quantity, revenue, and global market share of top manufacturers are analyzed emphatically by landscape contrast.
Chapter 4, the Vanadium Redox Flow Battery (VRFB) Felt breakdown data are shown at the regional level, to show the sales quantity, consumption value, and growth by regions, from 2021 to 2032.
Chapter 5 and 6, to segment the sales by Type and by Application, with sales market share and growth rate by Type, by Application, from 2021 to 2032.
Chapter 7, 8, 9, 10 and 11, to break the sales data at the country level, with sales quantity, consumption value, and market share for key countries in the world, from 2021 to 2026.and Vanadium Redox Flow Battery (VRFB) Felt market forecast, by regions, by Type, and by Application, with sales and revenue, from 2027 to 2032.
Chapter 12, market dynamics, drivers, restraints, trends, and Porters Five Forces analysis.
Chapter 13, the key raw materials and key suppliers, and industry chain of Vanadium Redox Flow Battery (VRFB) Felt.
Chapter 14 and 15, to describe Vanadium Redox Flow Battery (VRFB) Felt sales channel, distributors, customers, research findings and conclusion.