Top 10 Ultracapacitor Battery Manufacturers 2026

The global ultracapacitor market is experiencing robust growth, driven by rising demand for energy-efficient storage solutions across automotive, industrial, and renewable energy sectors. According to Mordor Intelligence, the ultracapacitor market was valued at USD 562.4 million in 2024 and is projected to reach USD 1.13 billion by 2029, growing at a CAGR of 15.00% during the forecast period. This expansion is fueled by the increasing adoption of hybrid and electric vehicles, growing deployment of regenerative braking systems, and the integration of ultracapacitors in grid and backup power applications due to their high power density and rapid charge-discharge capabilities. As industries prioritize reliable, long-life energy storage with low maintenance, ultracapacitors are emerging as a critical technology—positioning leading manufacturers at the forefront of innovation and market share. The following list highlights the top 10 ultracapacitor battery manufacturers shaping this dynamic landscape.

Top 10 Ultracapacitor Battery Manufacturers 2026

(Ranked by Factory Capability & Trust Score)

#1 Ultracapacitor Overview

Trust Score: 65/100
Domain Est. 1994

Ultracapacitor Overview

Website: maxwell.com

Key Highlights: A rapidly emerging and increasingly applied technology, ultracapacitors are capable of storing and discharging energy very quickly and effectively….

#2 High power energy storage solutions

Trust Score: 65/100
Domain Est. 2009

High power energy storage solutions

Website: skeletontech.com

Key Highlights: Skeleton Technologies is the world’s leading manufacturer of graphene-based supercapacitors. Rebuilding industry for a net-zero future….

#3 LiCAP Technologies, Inc.

Trust Score: 65/100
Domain Est. 2018

LiCAP Technologies, Inc.

Website: licaptech.com

Key Highlights: The Activated Dry Electrode® process enables cost-effective and environmentally friendly manufacturing of batteries and capacitors with superior performance….

#4 Tecate Group

Trust Score: 60/100
Domain Est. 1997

Tecate Group

Website: tecategroup.com

Key Highlights: Find high power energy storage solutions with Tecate Group. We offer various ultracapacitors, capacitors & custom power solutions for any application….

#5 IOXUS

Trust Score: 60/100
Domain Est. 2002

IOXUS

Website: ioxus.com

Key Highlights: The Industry Leader in Ultra Capacitor Cell and Module Manufacturing. ISO 9001:2015 Certified Manufacturing ; Systematically Powering Our World. Reliable Energy ……

#6 Ultracapacitor Cells

Trust Score: 60/100
Domain Est. 2009 | Founded: 2005

Ultracapacitor Cells

Website: 4xspower.com

Key Highlights: 3-day delivery 30-day returnsXS Power Batteries was established in 2005 on the east coast of the US with a passion for powering the impossible….

#7 Supercapacitor Automotive Batteries

Trust Score: 60/100
Domain Est. 2013

Supercapacitor Automotive Batteries

Website: clarios.com

Key Highlights: We manufacture advanced supercapacitors—also known as ultracapacitors, supercaps, or ultracaps—that deliver rapid bursts of power essential for today’s ……

#8 Sechsa

Trust Score: 60/100
Domain Est. 2016

Sechsa

Website: sechsa.com

Key Highlights: SECH designs, develops and supplies customized energy storage and power delivery solutions based on ultracapacitors, also known as supercapacitors for ……

#9 UCAP Power™

Trust Score: 60/100
Domain Est. 2019

UCAP Power™

Website: ucappower.com

Key Highlights: UCAP Power™ is an exciting new startup that provides ultracapacitor-based solutions across a wide range of renewable markets….

#10

Trust Score: 60/100
Domain Est. 2022

Website: musashienergysolutions.com

Key Highlights: Musashi’s Hybrid SuperCapacitor (HSCs) products deliver unparalleled high-power density energy storage to meet the diverse needs of an electrified world….


Expert Sourcing Insights for Ultracapacitor Battery

Ultracapacitor Battery industry insight

H2: 2026 Market Trends for Ultracapacitor Batteries

As the global energy storage landscape evolves rapidly, ultracapacitor batteries (also known as supercapacitors or electrochemical capacitors) are poised to play a pivotal role in the transition toward efficient, sustainable, and high-performance energy systems by 2026. Driven by advancements in materials science, increasing demand for energy efficiency, and supportive regulatory frameworks, the ultracapacitor market is expected to witness significant growth and transformation in the coming years. This analysis outlines key market trends expected to shape the ultracapacitor battery industry in 2026.

1. Accelerated Adoption in Transportation and EVs

By 2026, ultracapacitors will see expanded use in the transportation sector, particularly in hybrid and electric vehicles (EVs), public transit, and rail systems. Their ability to deliver rapid charge/discharge cycles, high power density, and long cycle life makes them ideal for regenerative braking systems, cold-start assistance, and peak power support. Integration with lithium-ion batteries in hybrid energy storage systems (HESS) will enhance overall efficiency and extend battery lifespan, driving demand from automakers seeking improved performance and durability.

2. Growth in Renewable Energy Integration

Ultracapacitors are increasingly being deployed in renewable energy systems—especially solar and wind—to address intermittency and stabilize power grids. In 2026, they will be critical components in grid-level energy storage and microgrid applications, where fast response times are essential for frequency regulation and load leveling. Their reliability in extreme temperatures and low maintenance requirements make them well-suited for remote and harsh environments.

3. Advancements in Materials and Hybrid Technologies

By 2026, breakthroughs in electrode materials—such as graphene, carbon nanotubes, and metal oxides—will significantly enhance energy density and reduce costs. Hybrid ultracapacitors, which combine the high energy density of batteries with the high power density of capacitors, are expected to gain commercial traction. These innovations will bridge the performance gap between traditional batteries and ultracapacitors, opening new applications in consumer electronics, industrial equipment, and defense systems.

4. Expansion into Industrial and Smart Infrastructure

Ultracapacitors will see growing adoption in industrial automation, backup power systems, and smart infrastructure. Applications such as uninterruptible power supplies (UPS), automated guided vehicles (AGVs), and IoT-enabled sensors will benefit from the long lifecycle and reliability of ultracapacitors. In smart cities, they will power traffic signals, emergency lighting, and communication networks with minimal maintenance.

5. Regional Market Growth and Investment

Asia-Pacific—led by China, Japan, and South Korea—will remain the dominant market for ultracapacitors in 2026, driven by strong government support for clean energy and electric mobility. North America and Europe will also experience robust growth, fueled by green energy policies, EV proliferation, and investments in grid modernization. Strategic partnerships between ultracapacitor manufacturers and automotive or energy firms are expected to increase, accelerating commercialization.

6. Sustainability and Circular Economy Focus

Environmental regulations and the push for sustainable technologies will influence ultracapacitor design and manufacturing. By 2026, producers will emphasize recyclable materials, reduced use of hazardous substances, and energy-efficient production processes. The long operational life and high recyclability of ultracapacitors will enhance their appeal in circular economy models, differentiating them from conventional batteries.

7. Cost Reduction and Market Competition

Economies of scale, improved manufacturing techniques, and rising competition will contribute to declining ultracapacitor prices by 2026. This cost reduction, coupled with performance improvements, will make ultracapacitors more accessible across diverse sectors, including consumer electronics and residential energy storage.


Conclusion:
By 2026, the ultracapacitor battery market will be characterized by technological innovation, expanding applications, and strong growth across transportation, energy, and industrial sectors. While they will not fully replace batteries, ultracapacitors will increasingly complement them in hybrid systems, offering unmatched power performance and durability. As global decarbonization goals intensify, ultracapacitors are set to become a cornerstone of next-generation energy storage solutions.

Ultracapacitor Battery industry insight

Common Pitfalls When Sourcing Ultracapacitor Batteries: Quality and Intellectual Property Risks

Sourcing ultracapacitor batteries—especially hybrid systems combining ultracapacitors with battery technology—presents unique challenges. Buyers must navigate both technical quality concerns and intellectual property (IP) vulnerabilities that can impact performance, compliance, and long-term business viability. Below are key pitfalls to avoid.

Quality-Related Pitfalls

1. Inaccurate Performance Specifications

Many suppliers exaggerate key performance metrics such as capacitance, energy density, power density, or cycle life. Ultracapacitors sold with inflated ratings may degrade rapidly under real-world conditions, leading to system failure. Always request independent test reports (e.g., from third-party labs) and verify performance claims against industry standards like IEC 62576.

2. Poor Manufacturing Consistency

Low-cost or unqualified manufacturers may lack rigorous quality control, resulting in batch-to-batch variability. This inconsistency affects system reliability, especially in applications requiring tight tolerance, such as regenerative braking or power backup systems. Audit suppliers’ manufacturing processes and request statistical process control (SPC) data.

3. Substandard Materials and Cell Construction

Counterfeit or low-grade materials (e.g., impure activated carbon, inferior electrolytes, or weak separators) directly impact safety, lifespan, and thermal stability. Inferior construction increases risks of swelling, leakage, or thermal runaway. Conduct material certification reviews and on-site factory inspections when possible.

4. Inadequate Safety and Certification Compliance

Some ultracapacitor modules fail to meet essential safety standards (e.g., UL, CE, UN 38.3). Non-compliant products may not undergo proper safety testing for overvoltage, short circuits, or thermal stress. Always verify certifications and ensure compliance with regional regulatory requirements.

5. Lack of Long-Term Reliability Data

Ultracapacitors are often marketed with theoretical cycle life (e.g., 500,000+ cycles), but real-world performance under variable temperature, voltage, and load conditions may fall short. Demand accelerated life testing data and field performance history before scaling procurement.

Intellectual Property (IP) Pitfalls

1. Risk of Infringing Patented Technologies

The ultracapacitor space is heavily patented, especially in electrode design, cell architecture, and hybrid energy management systems. Sourcing from manufacturers using unlicensed or copied designs risks IP litigation. Conduct due diligence on the supplier’s IP portfolio and freedom-to-operate (FTO) analysis.

2. Lack of Transparency in Technology Origin

Some suppliers mask the true origin of their technology, potentially reselling rebranded or reverse-engineered products. This opacity increases exposure to IP disputes and limits technical support or customization. Require full disclosure of technology lineage and development history.

3. Unclear or Restrictive IP Ownership in Custom Designs

When co-developing or customizing ultracapacitor solutions, unclear agreements on IP ownership can lead to disputes. Ensure contracts explicitly define who owns newly developed IP, rights to use, and obligations for future improvements.

4. Inadequate Protection of Sourced Designs

If your company develops proprietary integration methods or control algorithms, sourcing from a manufacturer with weak IP safeguards risks trade secret leakage. Evaluate the supplier’s confidentiality practices, NDAs, and cybersecurity measures.

Mitigation Strategies

  • Perform Supplier Vetting: Audit technical capabilities, quality systems (e.g., ISO 9001), and IP compliance.
  • Require Certification and Testing: Insist on test reports, safety certifications, and independent validation.
  • Engage Legal Counsel: Review contracts for IP clauses and ensure FTO analysis is conducted.
  • Start with Pilot Orders: Test performance and reliability before large-scale procurement.
  • Establish Long-Term Partnerships: Work with transparent, innovative suppliers invested in mutual IP and quality standards.

Avoiding these pitfalls ensures reliable, high-performance ultracapacitor solutions while minimizing legal and operational risks.

Ultracapacitor Battery industry insight

Logistics & Compliance Guide for Ultracapacitor Batteries

Ultracapacitor batteries (also known as supercapacitors or electrochemical capacitors) offer high power density, rapid charge/discharge cycles, and long lifespans, making them valuable in industries such as renewable energy, transportation, and industrial equipment. However, their transportation, storage, and handling are subject to specific logistics and regulatory compliance requirements due to their electrical and chemical characteristics. This guide outlines key considerations under the H2 classification framework.


H2: Classification and Regulatory Framework

Under international transport regulations, ultracapacitor batteries fall under specific hazard classifications depending on design, chemistry, and packaging. Although ultracapacitors are generally less hazardous than lithium-ion batteries, they must still be evaluated for compliance.

1. UN Classification and Proper Shipping Name:

  • Ultracapacitors are typically not classified as dangerous goods under the UN Model Regulations (UN Recommendations on the Transport of Dangerous Goods) if they contain no hazardous electrolytes and cannot deliver enough energy to pose a significant short-circuit hazard.
  • However, if the device contains hazardous materials (e.g., organic solvents) or is combined with other power sources (e.g., hybrid systems with lithium batteries), it may require classification under:
  • UN 3499 – Lithium ion batteries contained in equipment
  • UN 3171 – Battery-powered vehicles or battery-powered equipment (if installed)
  • UN 3480 – Lithium ion batteries (if hybrid configuration applies)

Note: Always verify the specific product’s Safety Data Sheet (SDS) and manufacturer documentation to confirm classification.

2. IATA DGR (Air Transport):

  • Most standalone ultracapacitors do not meet the definition of a dangerous good under IATA Dangerous Goods Regulations (DGR) Section 2, provided:
  • Voltage is below thresholds that could cause ignition (typically < 60V for DC).
  • No hazardous electrolyte (e.g., non-flammable solid or aqueous electrolyte).
  • Not packaged with or part of a lithium battery system.
  • If compliant with PI 966/PI 967 (for lithium batteries contained in/equipment), apply those provisions accordingly.
  • Documentation: Shipper’s Declaration for Dangerous Goods is not required unless classified as such.

3. IMDG Code (Sea Transport):

  • Under the International Maritime Dangerous Goods (IMDG) Code:
  • Ultracapacitors without hazardous components are generally not regulated as dangerous goods.
  • If classified (e.g., due to hybrid design), must comply with Packing Instructions P903, P908, or LP904.
  • Marking and documentation must align with IMDG Chapter 3.3 and 5.2.

4. ADR (Road Transport in Europe):

  • According to ADR (European Agreement concerning the International Carriage of Dangerous Goods by Road):
  • Ultracapacitors with non-hazardous electrolytes and low energy output are exempt from ADR regulations.
  • If classified as dangerous goods, must adhere to Chapter 3.2 (classification) and Chapter 5.4 (documentation).
  • Exemptions may apply under Limited Quantities (LQ) or Excepted Quantities (EQ) provisions.

5. DOT 49 CFR (US Domestic Transport):

  • Under US Department of Transportation (DOT) regulations:
  • Ultracapacitors are generally not regulated as hazardous materials if they do not contain hazardous substances and meet voltage/energy thresholds.
  • If combined with lithium batteries, apply 49 CFR §173.185 requirements.
  • Proper packaging, handling, and labeling per manufacturer instructions are mandatory.

Key Compliance Considerations

  • Testing & Certification: Perform electrical safety testing (e.g., IEC 62576) and ensure compliance with regional standards (e.g., UL 2947 for energy storage systems).
  • Labeling: Even if not classified as dangerous goods, label with:
  • Manufacturer name and contact
  • Voltage and capacitance ratings
  • “Caution: High Voltage” if applicable
  • RoHS, REACH, or WEEE compliance marks (if applicable)
  • Packaging: Use anti-static, shock-resistant packaging. Prevent short circuits via terminal protection (e.g., caps, tape).
  • Storage: Store in dry, temperature-controlled environments (typically -20°C to +60°C). Avoid conductive contaminants.

Best Practices for Logistics

  • Pre-shipment Verification: Confirm classification with manufacturer and third-party testing labs.
  • Training: Ensure staff are trained in battery handling and regulatory updates (e.g., IATA annual training).
  • Documentation: Maintain SDS, test reports, and compliance certificates.
  • Reverse Logistics: Follow WEEE (Waste Electrical and Electronic Equipment) directives for end-of-life returns.

Summary

While most ultracapacitor batteries are not classified as dangerous goods under H2 and related frameworks, compliance depends on specific design, chemistry, and integration. Always:
– Consult the manufacturer’s technical and safety data.
– Classify based on UN test results and transport standards.
– Apply appropriate labeling, packaging, and documentation.
– Stay updated with revisions to IATA, IMDG, ADR, and DOT regulations.

By adhering to this H2-aligned compliance framework, organizations can ensure safe, legal, and efficient global logistics for ultracapacitor batteries.

Declaration: Companies listed are verified based on web presence, factory images, and manufacturing DNA matching. Scores are algorithmically calculated.

Conclusion for Sourcing Ultracapacitor Batteries

Sourcing ultracapacitor batteries requires a strategic approach that balances performance requirements, cost-effectiveness, reliability, and long-term supply chain sustainability. Ultracapacitors offer distinct advantages over traditional batteries—such as high power density, rapid charge/discharge cycles, longer cycle life, and superior performance in extreme temperatures—making them ideal for applications in renewable energy systems, electric vehicles, industrial machinery, and backup power solutions.

When selecting a supplier, it is essential to consider technical specifications, quality certifications, scalability, and after-sales support. Prioritizing manufacturers with proven experience, robust R&D capabilities, and compliance with international standards (e.g., ISO, CE, RoHS) ensures product reliability and longevity. Additionally, evaluating total cost of ownership—not just initial purchase price—reveals the long-term value ultracapacitors bring through reduced maintenance and replacement costs.

Emerging markets and technological advancements are expanding the availability of ultracapacitors, enabling more competitive pricing and innovation. However, conducting thorough due diligence, requesting samples, and establishing strong partnerships with reputable suppliers remain critical steps.

In conclusion, successful sourcing of ultracapacitor batteries hinges on aligning technical needs with supplier capabilities, emphasizing quality and sustainability, and staying informed about industry trends. With the right strategy, organizations can leverage ultracapacitor technology to enhance system efficiency, reliability, and environmental performance.

Top 10 Ultracapacitor Battery Manufacturers 2026

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