Nickel-hydrogen accumulators: technology for extreme temperatures
Никель-Водородные аккумуляторы
EverVenue startup created in 2020 to develop energy storage technologies signed the agreement with Green Energy Renewable Solutions, the renewable energy equipment manufacturer, for supplying nickel-hydrogen accumulators of 250 megawatt-hour (MWh) total capacity. The project is implemented with participation of Nicon Industries A/S, the parent company of Green Energy Renewable Solutions, which will be using the accumulators to energise forklifts operating on fossil fuel.

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Nickel-hydrogen accumulators are using nickel and hydrogen electrodes (the electric current conductors); their key feature is the extreme conditions resistance: according to EverVenue, they may operate in the ambient temperature range from minus 40 to plus 60 degrees Celsius. Another advantage is their durability: they are capable of 30 thou recharging cycles without loss of efficiency and their rated lifespan exceeds 30 years. Due to the above-described advantages, nickel-hydrogen accumulators are widely used at manned spacecrafts and orbital space stations (including the International Space Station), where they have performed over 200 mln hours and had over 100 thou recharging cycles.

Green Energy Renewable Solutions states: “By 2024, Nicon’s forklifts will be converted from fossil fuel to electric power and will be charged with Green Energy battery containers”, Jens Yuul, the Chief Operating Officer of Nicon said in his press release. According to him, in future nickel-hydrogen accumulators also will be used to supply energy to the vessels installing offshore wind turbines.

The project will contribute to increasing the number of alternatives for lithium-ion batteries, the weak point of which is the high risk of overheating and the need to use specialised cooling systems. The pool of such alternatives will be expanding in near future, Yi Cui, one of the founders of EverVenue, the professor of material science and engineering in Stanford University, believes. “We cannot exclude that other types of batteries will be used for storing energy in future, and they will have much better performance parameters than the lithium-ion ones. Innovations in battery chemistry will be required for such alternatives to appear providing for the possibility to store energy at much lesser costs and much longer lifespan”, he said.


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September 2022