CAP-XX
CAP-XX is an Australian energy-storage technology company specializing in thin-form-factor supercapacitors and related energy-storage systems.
Last updated October 14, 2026
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Overview
CAP-XX Limited is an Australian energy-storage technology company focused on supercapacitors, a class of electrochemical devices that can absorb and release electrical energy rapidly and withstand frequent charge-discharge cycles. Its principal specialization is the development and manufacture of thin, compact supercapacitors for applications where limited space, rapid power delivery, long service life, and automated assembly are important. The company serves or targets industrial Internet of Things equipment, smart meters, connected and wearable devices, robotics, automotive systems, electric and hybrid vehicles, electrical-grid equipment, data centers, aerospace, defense, renewable-energy systems, and other industrial applications. The company’s origins are connected with Australian research into energy storage. Anthony Kongats was associated in the mid-1990s with Energy Storage Systems Pty Ltd, an enterprise founded in 1990 that worked with Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) on supercapacitor research and commercialization. CAP-XX was founded in 1997 at Seven Hills in New South Wales, using intellectual property and research developed through that relationship. Its early technical focus was energy-dense double-layer capacitance for small electronic products. The business subsequently moved from research and development into commercial supply, licensing, manufacturing partnerships, and the sale of its own supercapacitor products. CAP-XX became more visible internationally during the 2000s. It was selected for the World Economic Forum’s 2005 Technology Pioneers list and was admitted to London’s AIM market in 2006. The company entered a 2008 licensing arrangement with Murata for Murata-branded prismatic supercapacitors made using CAP-XX patents, followed by a 2009 manufacturing agreement with Nationwide Technologies in Penang, Malaysia. It has also licensed or supplied technology associated with major electronics manufacturers, including Murata and AVX, according to the company’s historical materials. Its product portfolio has included ultra-thin prismatic devices, cylindrical supercapacitors, coin-cell formats, and lithium-ion hybrid supercapacitors. Prismatic families identified in company and reference materials include DMV, DMH, DMF, and DMT products, with different voltage, capacitance, and dimensional combinations. Larger cylindrical products and modules address higher-power requirements, including vehicle starting, microgrid stabilization, renewable-energy support, and other industrial uses. CAP-XX has also pursued surface-mount technology intended to allow supercapacitors to be placed on printed circuit boards through automated assembly and reflow-compatible processes. The company has continued to invest in higher-energy-density technologies. In 2023 it entered a joint venture with Australian graphene specialist Ionic Industries to develop reduced graphite oxide electrodes, building on research undertaken with Monash University. The objective is to improve the energy density of supercapacitors while retaining their rapid power characteristics. CAP-XX has also described work on cylindrical surface-mount products and other next-generation formats. Commercial development has included automotive and industrial supply opportunities. In 2022, CAP-XX was selected as a Tier 1 supplier for Continental AG’s DMT220 prismatic supercapacitors, with sourcing expected to run from late 2024 through 2030 under the reported arrangement. In 2020, CAP-XX acquired a Murata supercapacitor production line and transferred it to its Seven Hills facility, expanding its control over manufacturing capacity. In 2024, it announced a memorandum of understanding with Schurter to explore a joint venture for ultra-thin prismatic supercapacitors under a unified brand. CAP-XX is headquartered in Australia but operates through an international customer, licensing, manufacturing, partnership, and distribution network. It remains principally positioned as a specialist component and technology supplier rather than a mass-market consumer brand. Its competitive proposition rests on compact geometries, high power density, rapid charge and discharge, durability under repeated cycling, and the ability to integrate energy storage into constrained electronic and industrial designs.
History
CAP-XX’s history is rooted in Australian supercapacitor research and commercialization. Energy Storage Systems Pty Ltd, founded in 1990, worked with CSIRO on energy-storage technology. Anthony Kongats was associated with that work during the 1990s, and the resulting research and intellectual property later provided an important foundation for CAP-XX. Kongats founded CAP-XX in 1997 at Seven Hills, New South Wales, with an initial emphasis on energy-dense double-layer capacitors for compact electronic devices. During its early development, CAP-XX received Australian government support and seed investment, although detailed financial figures are not included here because they require independently attributable financial sources. The company moved toward commercial activity in the early 2000s, supplying or licensing supercapacitor technology for consumer electronics and wearable applications. In 2005, it was named a World Economic Forum Technology Pioneer. In 2006, CAP-XX was admitted to the London Stock Exchange’s AIM market, giving the Australian technology company access to public capital and an international investor base. The company expanded through licensing and manufacturing relationships. In 2008, it entered into an agreement under which Murata could manufacture Murata-branded prismatic supercapacitors using CAP-XX patents. In 2009, it agreed a manufacturing arrangement with Nationwide Technologies in Penang, Malaysia. CAP-XX’s technology was also associated with licensing or supply relationships involving other electronics businesses, including AVX. These relationships supported the company’s attempt to commercialize thin and compact energy-storage components beyond its Australian base. Its technology portfolio developed around several form factors. Ultra-thin prismatic products targeted small electronic and embedded applications, while cylindrical devices, coin-cell products, hybrid supercapacitors, and larger modules addressed higher-capacity or higher-power requirements. Potential applications included smart meters, IoT equipment, wearable devices, automotive systems, regenerative braking, renewable-energy installations, grid support, marine propulsion, and backup or power-smoothing systems for data centers. CAP-XX also pursued surface-mount technology intended to make supercapacitors compatible with automated printed-circuit-board assembly and reflow soldering. Manufacturing capacity became a strategic focus. In 2020, CAP-XX acquired a Murata supercapacitor production line and transferred it to its Seven Hills headquarters. The move was intended to expand production capability and improve control over manufacturing. In 2022, the company was selected as a Tier 1 supplier for Continental AG’s DMT220 prismatic supercapacitors. The reported sourcing period was expected to begin in late 2024 and continue through 2030. Patent disputes became a significant part of the company’s later history. In 2019, CAP-XX sued Maxwell Technologies over alleged infringement involving supercapacitor electrodes. Maxwell was owned by Tesla at that time and was later sold to UCAP Power. In 2023, Tesla initiated separate litigation against CAP-XX over related electrode technology. The legal action was settled in March 2024, according to the cited reference material. Leadership and corporate strategy changed in 2023. Founder and longtime CEO Anthony Kongats left the CEO position effective May 2023, and Lars Stegmann became chief executive. CAP-XX also announced a discounted placing during that period. Later in 2023, the company established a joint venture with Ionic Industries, an Australian graphene-technology specialist, to develop reduced graphite oxide electrodes. The technology had been developed over several years with Monash University and was intended to increase supercapacitor energy density. In 2024, CAP-XX appointed additional non-executive directors, including Graham Cooley, formerly CEO of ITM Power. In July, it signed a memorandum of understanding with Schurter, a company majority owned by Capvis, to explore a joint venture focused on ultra-thin prismatic supercapacitors under a unified brand. By the end of 2024, CAP-XX remained focused on supercapacitor research and development, new product partnerships, manufacturing capacity, and international distribution. Its identity continued to be that of a specialist energy-storage technology company serving industrial and embedded applications rather than a consumer-facing electronics brand.
- 2024
Tesla litigation settled
[1]The patent action between CAP-XX and Tesla was settled in March.
- 2024
Schurter collaboration announced
[1]CAP-XX and Schurter signed an MoU concerning a potential ultra-thin prismatic supercapacitor joint venture.
- 2023
CEO transition and Ionic Industries joint venture
[1]Anthony Kongats left the CEO role, Lars Stegmann became CEO, and CAP-XX partnered with Ionic Industries on reduced graphite oxide electrodes.
- 2022
Continental supplier selection
[1]CAP-XX was selected as a Tier 1 supplier for Continental’s DMT220 supercapacitors.
- 2020
Murata production line acquired
[1]CAP-XX acquired and transferred a Murata supercapacitor production line to Seven Hills.
- 2019
Maxwell Technologies patent lawsuit
[1]CAP-XX initiated patent litigation concerning supercapacitor electrode technology.
- 2009
Nationwide Technologies manufacturing agreement
[1]CAP-XX entered a manufacturing agreement with Nationwide Technologies in Malaysia.
- 2008
Murata licensing agreement
[1]CAP-XX licensed technology to Murata for Murata-branded prismatic supercapacitors.
- 2006
AIM admission
[1]CAP-XX became publicly traded on the London Stock Exchange AIM market.
- 2005
Named a Technology Pioneer
[1]CAP-XX was selected for the World Economic Forum’s Technology Pioneers list.
Products and positioning
A specialist developer and manufacturer of compact, high-power energy-storage components, emphasizing thin-form-factor supercapacitors, industrial integration, and next-generation electrode and assembly technologies.
Prismatic supercapacitor
DMV
The DMV family comprises compact prismatic supercapacitors designed for embedded electronics and other applications requiring rapid charge and discharge in a constrained space. A referenced example is a 3-volt, 750-millifarad device measuring approximately 21 by 14 by 2.2 millimeters.
Ultra-thin prismatic supercapacitor
DMH
DMH products are exceptionally thin prismatic supercapacitors for space-constrained electronic designs. Referenced configurations include a 4.5-volt, 35-millifarad version and a 2.25-volt, 140-millifarad version, with a cited form factor of about 20 by 20 by 0.4 millimeters.
Prismatic supercapacitor
DMF
The DMF range provides higher capacitance in a still-compact prismatic package. A cited configuration is rated at 5 volts and up to 1 farad, with dimensions of approximately 30 by 14 by 3.7 millimeters. It is intended for electronic systems needing brief bursts of power or backup energy.
Prismatic supercapacitor
DMT
DMT devices are prismatic supercapacitors developed for compact industrial and automotive electronics. Referenced products reach approximately 4.2 volts and up to 470 millifarads. The DMT220 product was identified in materials concerning CAP-XX’s planned supply relationship with Continental AG.
Cylindrical supercapacitor
Cylindrical supercapacitors
CAP-XX’s cylindrical products address applications requiring more capacitance or power than the thinnest prismatic formats can provide. The referenced range extends from approximately 0.5 farad to 3,000 farads and can support industrial power buffering, vehicle systems, and energy-management equipment.
Coin-cell supercapacitor
Coin-cell supercapacitors
Coin-cell supercapacitors provide a compact, circular package for embedded electronics and backup-power functions. The referenced CAP-XX range spans approximately 0.5 to 1.5 farads, making it suitable for small devices where a battery alternative or short-duration energy buffer is required.
Hybrid energy-storage device
Lithium-ion hybrid supercapacitors
These devices combine features of lithium-ion energy storage with the rapid power delivery and cycling characteristics associated with supercapacitors. The referenced range is approximately 10 to 220 farads, targeting systems that need more stored energy than a conventional supercapacitor while retaining high-power performance.
Supercapacitor electrode technology · 2023
Reduced graphite oxide electrode technology
CAP-XX and Ionic Industries are developing reduced graphite oxide electrodes intended to raise the energy density of supercapacitors. The work builds on research conducted with Monash University and seeks to improve electrode performance without abandoning the rapid charge-discharge behavior central to supercapacitor applications.
Controversies
2023
Tesla patent litigation
Tesla sued CAP-XX over alleged infringement involving supercapacitor electrode technology. The matter was settled in March 2024.
2019
Patent litigation involving Maxwell Technologies
CAP-XX sued Maxwell Technologies, alleging infringement of patents relating to electrodes used in supercapacitors. Maxwell was owned by Tesla at the time.
Brand decisions
2024
Explore ultra-thin prismatic supercapacitor joint venture with SchurterStrategyBackground
CAP-XX and Schurter identified an opportunity to collaborate on a unified ultra-thin prismatic supercapacitor offering.
Action taken
The companies signed a memorandum of understanding to explore a joint venture.
Aftermath
The MoU established a framework for evaluating cooperation but did not by itself confirm completion of a joint venture.
2023
Appoint Lars Stegmann as CEOOtherBackground
Founder and CEO Anthony Kongats exited the chief executive role in a period of corporate and financing changes.
Action taken
CAP-XX appointed Lars Stegmann as CEO in May 2023.
Aftermath
The company continued under new executive leadership while maintaining its focus on supercapacitor development and commercialization.
2023
Develop reduced graphite oxide electrodes with Ionic IndustriesStrategyBackground
CAP-XX sought to improve the energy density of its supercapacitor technology.
Action taken
It formed a joint venture with Ionic Industries to combine Ionic’s graphene-related electrode technology with CAP-XX supercapacitors.
Aftermath
The rGO technology remained under development, with the aim of producing higher-energy-density supercapacitors.
2020
Acquire Murata supercapacitor production lineM&ABackground
CAP-XX pursued greater manufacturing capacity and control over production.
Action taken
It acquired a Murata supercapacitor production line and transferred it to the company’s Seven Hills headquarters.
Aftermath
The transaction increased the production assets available at CAP-XX’s Australian facility.
2008
License prismatic supercapacitor patents to MurataStrategyBackground
CAP-XX sought to commercialize its thin-form-factor technology through an established electronics manufacturer.
Action taken
It entered a licensing agreement allowing Murata to manufacture Murata-branded prismatic supercapacitors using CAP-XX patents.
Aftermath
The agreement expanded the commercial reach of CAP-XX-derived technology through a major electronics supplier.
Recent events
- 2024
New non-executive directors appointed[1]
Leadership change
CAP-XX appointed additional non-executive directors, including former ITM Power CEO Graham Cooley.
- 2024
Schurter memorandum of understanding[1]
M&A · Product launch
Schurter and CAP-XX signed an MoU to explore a joint venture for ultra-thin prismatic supercapacitors under a unified brand.
- 2023
Founder and CEO Anthony Kongats departed[1]
Leadership change
Anthony Kongats left the chief executive role, effective May 2023, and Lars Stegmann was appointed CEO.
- 2023
CAP-XX and Ionic Industries formed development joint venture[1]
M&A · Product launch
The companies partnered to develop reduced graphite oxide electrode technology for higher-energy-density supercapacitors.
- 2022
Continental Tier 1 supplier selection[1]
Other
CAP-XX was selected as a Tier 1 supplier to Continental for DMT220 prismatic supercapacitors.
- 2020
CAP-XX acquired Murata production line[1]
M&A
CAP-XX acquired a Murata supercapacitor production line and moved it to its Seven Hills facility in Sydney.
- 2009
Manufacturing agreement with Nationwide Technologies[1]
Other
CAP-XX entered a manufacturing arrangement with Nationwide Technologies in Penang, Malaysia.
- 2008
Murata licensing agreement[1]
M&A
CAP-XX agreed to license patents to Murata for production of Murata-branded prismatic supercapacitors.
- 2006
CAP-XX admitted to London Stock Exchange AIM[1]
Other
The company became publicly traded on London’s AIM market under ticker CPX.
- 2005
CAP-XX selected for World Economic Forum Technology Pioneers[1]
Other
CAP-XX was included in the World Economic Forum’s Technology Pioneers selection, highlighting its supercapacitor technology.
Sources3 sources
- 1CAP-XXen.wikipedia.org
- 2CAP-XX acquires Murata's supercapacitor production lines, will produce Murata's three supercapacitor families and serve its customers from Sydneyprweb.com
- 3CAP-XX Launches Full-Scale Production of Murata Supercapacitors after Successfully Commissioning Murata Production Lines at new CAP-XX Facility in Sydneyprweb.com
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