Ultracapacitor Market Size, Share, Growth, Trends, and Global Industry Analysis: By Type (Double Layered Capacitors, Pseudocapacitors, and Hybrid Capacitors), By Power (Less than 10 Volts, 10 Volts to 25 Volts, 25 Volts to 50 Volts, 50 Volts to 100 Volts, and Above 100 Volts), By End-Use Industry (Automotive and Transportation, Consumer Electronics, Energy and Power, Industrial Manufacturing, Aerospace and Defence, and Others), and Region Forecast 2020-2031

Ultracapacitor Market size was valued at US$ 4,342.9 million in 2024and is expected to reach US$ 13,999.2 million by 2031, growing at a significant CAGR of 18.2% from 2025-2031. Moreover, the U.S. market is projected to grow significantly, reaching an estimated value of US$ 4,367.7 Million by 2031.

The global market is focused on the production, sale, and application of ultracapacitors, also known as supercapacitors. These are advanced energy storage devices that bridge the gap between conventional capacitors and rechargeable batteries. The global market is being primarily driven by the rising demand for energy-efficient, high-power storage in electric and hybrid vehicles. Ultracapacitors’ ability to support regenerative braking, engine start-stop functions, and power stabilization makes them ideal for mobility solutions aligned with decarbonization goals. Rising investments in renewable energy, smart grids, and backup power systems further fuel market growth. A key trend shaping this market is the hybridization of ultracapacitors with batteries, forming hybrid energy storage systems (HESS) that combine rapid power delivery with long-duration energy storage. These systems are gaining traction in automotive, industrial, and renewable energy applications, supported by growing R&D in power management and integration technologies.

An important opportunity lies in the integration of ultracapacitors within renewable energy infrastructures such as solar and wind, offering grid stabilization, reduced system wear, and improved efficiency. The technology is also expanding into electric public transport, aerospace, and automation. However, market growth is restrained by high initial costs and lower energy density compared to conventional batteries. Additional challenges include complex power management requirements, limited user awareness, and a lack of standardization. Despite these barriers, ultracapacitors remain a critical component in the transition to cleaner, smarter energy systems.

Facts & Figures 

• Electrification of the Automotive Sector: Ultracapacitors are gaining traction in electric and hybrid vehicles (EVs and HEVs) due to their fast charge-discharge cycles, excellent power density, and long lifecycle, ideal for regenerative braking and engine start-stop systems. For instance, Clarios secured a major contract to supply 12V and 48V ultracapacitors for advanced EV platforms, reflecting OEM adoption of ultracapacitor technology for power stabilization in modern vehicle architectures.
• Demand for Fast-Response Power in Data Centers and AI Infrastructure: Data centers and AI computing require instant, stable power delivery to prevent GPU crashes or lag. Ultracapacitors deliver microsecond-level response, ideal for backup and smoothing high loads. For instance, in June 2025, Skeleton Technologies launched Graphene GPU, a supercapacitor-based rack product designed to stabilize GPU power spikes in AI data centers, showing sectoral diversification.
• Increased Investment and Funding in Ultracapacitor Technologies: Ongoing capital influx from corporations and investors accelerates innovation, capacity expansion, and commercialization of graphene and rGO-based ultracapacitors. For instance, Skeleton raised €108 million in Oct 2023 from Siemens, CBMM, and others to scale its “superfactory” and enhance its proprietary curved graphene technology, indicating strong investor confidence.
• Military and Aerospace Applications Requiring High Reliability: Ultracapacitors offer extreme temperature resistance, fast energy bursts, and low maintenance, making them ideal for mission-critical systems in defence and aerospace. For instance, Legend Power Systems (Canada) secured a CAD 3 million LOI from the Department of National Defence to supply supercapacitor-powered SmartGATE systems, showing defence sector adoption.

key Developments 

• In June 2025, ABB's Electrification Ventures acquired a minority stake in Spain-based HESStec, specializing in hybrid energy storage systems combining ultracapacitors and batteries. This partnership aims to enhance ABB’s grid and microgrid offerings through optimized hybrid storage.
• In January 2025, Clarios announced a landmark agreement to supply advanced 12?V and 48?V supercapacitors to a leading automotive manufacturer. This contract, designed for stabilizing power in steer-by-wire and regenerative braking systems, underscores ultracapacitors' growing role in modern vehicle architectures.
• In July 2024, Skeleton Technologies entered a joint project with Honda Racing Corporation USA to develop a hybrid energy recovery system using its graphene ultracapacitors, debuting in the 2024 IndyCar season.

Ultracapacitor Market Segmentation

Based on the type 

• Double Layered Capacitors
• Pseudocapacitors
• Hybrid Capacitors

Double Layered Capacitors (EDLCs) hold the largest market share in the global ultracapacitor market. EDLCs are widely adopted due to their simple structure, high power density, rapid charge-discharge cycles, and long operational life. They are extensively used in regenerative braking, backup power, and grid stabilization applications across automotive, industrial, and consumer electronics sectors. Their relatively lower cost and mature manufacturing ecosystem further support their dominance. On the other hand, pseudocapacitors, despite offering higher energy density, currently hold the smallest market share due to their complex chemistry, shorter life cycle, and higher production costs, limiting large-scale adoption.

Based on the power 

• Less than 10 Volts
• 10 Volts to 25 Volts
• 25 Volts to 50 Volts
• 50 Volts to 100 Volts
• Above 100 Volts

Based on power rating, the 25 Volts to 50 Volts segment holds the largest market share in the global ultracapacitor market. This range offers an optimal balance between power output, compact size, and cost, making it ideal for applications in automotive systems, industrial automation, and consumer electronics. These capacitors are widely used in electric vehicles and power tools where mid-range voltage is sufficient for efficient energy discharge and recovery. In contrast, the less than 10 Volts segment holds the smallest market share, as it caters primarily to niche applications like small sensors and low-power circuits, limiting its scalability.

Based on the end-use industry

• Automotive and Transportation
• Consumer Electronics
• Energy and Power
• Industrial Manufacturing
• Aerospace and Defence
• Others

The automotive & transportation segment leads the global ultracapacitor market. This dominance stems from the industry's reliance on ultracapacitors for regenerative braking, start-stop systems, and burst-power support in EVs and HEVs. The energy and power sector follows closely, driven by the need for ultracapacitors in renewable grid stabilization and backup systems. Industrial manufacturing also plays a significant role, utilizing ultracapacitors for high-power machinery, motor drives, and power buffering. Consumer electronics, while growing, remain smaller segments, mainly due to niche applications like memory backups.