Caplyzer AB

To carry business of manufacturing, selling of electrochemical equipment’s and their integrated systems for gas or liquid products, including production. Water electrolysis is one of the most promising technology for green hydrogen production using renewable power and is an important part of the energy sector, shifting away from fossil-based fuels. The global electrolyser market size is expected to reach USD 467.39 million by 2027 with a CAGR of 6.3% between 2020 and 2027. Hydrogen and oxygen evolution reactions in conventional electrolysers utilising the “same pot”, i.e. have an electrolyte in one vessel separated by a membrane, presents some critical challenges that is circumvented by this invention. Safety under partial-load operation conditions (typical for intermittent power sources like solar and wind), often leading to potentially hazardous H2/O2 mixing. This mixing also reduces the electrolyser efficiency as hydrogen and oxygen recombine to form water as well as it leads to membrane degradation by reactive oxygen species that form in H2/O2 mixtures in the presence of catalysts. Today, less than 5 % of world’s hydrogen is produced by electrolysis. Replacing 95 % blue hydrogen with fossil-free hydrogen from electrolysis would require about 4000 TWh of fossil-free electricity production and result in an emission reduction of approximately 800 million tonnes of CO2/year (2% of global emissions). “The development of a truly disruptive electrolysis technology is required” to achieve cost-competitive production of green hydrogen from renewable sources that has been identified. In Sweden alone, rapid industrialisation of electrolysers are needed to meet just the needs of the HYBRIT’s initiative (1200 kton H2, growing to 7 GW by 2045).

The Caplyzer principle concept of decoupled water splitting was proposed a decade back (Symes et. al. Nat. Chem. 5, 403–409 (2013)), but the present invention of electrochemical - chemical cycle wherein redox/capacitive mediator is integrated to allow discharge of highly capacitive electrode or spontaneous chemical oxidation back to its initial state in the presence of a catalyst while releasing hydrogen makes the system very efficient and scalable. The invention also allows oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) to be undertaken in basic and acidic conditions as the two systems that are decoupled.

Thus the “electrocatalytic supercapacitor” water electrolyzers will be stackable configuration to be integrated to decentralized hydrogen production (windmills, PV installations) utilizing gas pressurizers from suppliers for energy storage and cost-effective energy transportation. It is envisaged that at the initial stages, lower-cost highly efficient water electrolyzers will be produced following which the business could develop using other partners and channels to offer complete solution. Preliminary discussions have been started with Stockholmwater Technology AB to source electronic control boards and integrate into the electrolyzers through SWT’s custom embedded design.


Address: Funäsgatan 24, 16274 Vällingby, Stockholm

Contact person: Joydeep Dutta, CEO

Phone: 0737652186

E-mail: [email protected]

Homepage: www.caplyzer.com (under construction)

Year of foundation: 2022

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