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The National Centre for Research and Development

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Electricity storage – “Battery Stream”

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square with tentacles  Project title

Electricity storage – “Battery Stream”

outline of the upper man silhouette  Name of Beneficiary/Beneficiaries

InnBat Sp. z o.o.

briefcase icon  Name of programme

Operational Program “Smart Growth”

newspaper icon  Competition

Electricity storage

two heaps of coins icon  Project value

PLN 4,988,650.00

hand icon with two circles above it  Funding value

PLN 4,988,650.00

clock icon  Project delivery period

01.08.2021 – 31.12.2023

Our team

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Materials

Attachment: presentation and article about the achievement

Issues addressed

Good conditions for the generation of wind or solar energy do not always coincide with high energy demand – for example, during reduced industrial demand on holidays or when home consumers are at work during the day. Then these surpluses could be saved in energy storage facilities for later use.

The KLAB technology for carbon-acid batteries developed by InnBAT involves replacing some of their components made of lead with specially developed conductive porous carbon. Thanks to this, the lead content in the battery is reduced by approximately 40%, the density of stored energy (Wh/kg) is approximately 50% higher, and production costs are lower compared to regular lead-acid batteries (approx. USD 50/kWh). These costs are several times lower than for lithium-ion batteries. The KLAB batteries are also characterized by high operational durability (e.g. eight years of continuous operation with photovoltaic panels) and low energy loss when stored in a charged state (approx. 2% per month). They can operate in a wide temperature range (from -35 to +55 °C). All he KLAB materials and structural elements are manufactured and available in Poland. The batteries can be recycled with a material recovery rate of almost 100%, in parallel to conventional lead-acid batteries, for which a collection and recycling system has been in place in Poland for several decades. At the beginning of 2024, a demonstrator of an energy storage system with a capacity of 15 kWh, powered by 10 kW photovoltaic panels, with the KLAB batteries installed, was built at the Faculty of Chemistry of the University of Warsaw.

Project beneficiaries

This battery made of primary materials available in Poland (including carbon, sulfur and lead) has a potential for use in home energy storage devices, warehouses, in industry or in balancing power grids. The invention is safe to use and environmentally friendly. It will strengthen the country’s energy independence and security, contribute to the development of the battery industry in Poland, and may become part of an extensive export offer.

Major implementation challenges

Finding a manufacturer and convincing it to cooperate within the project.

Our advice to other applicants

Establish this cooperation as early as possible.

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