Technologies
Energy storage systems come in many forms, leveraging different technology types. A class of electrochemical storage, lithium-ion batteries have established themselves as the industry standard.
But there are many new technologies vying for their market share.
Sodium-ion batteries are widely considered a sustainable and resource-saving answer to future energy storage, while flow batteries offer a viable alternative in long-duration storage applications.
However, the path to commercialization is not a straightforward one.
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Latest News
Sodium-ion batteries: Unigrid begins commercial-scale deliveries; Altris and Draslovka partner to scale Europe’s supply chain
With lithium prices reaching a two-year high in early 2026, sodium-ion batteries are once again in the spotlight, as innovators on both sides of the Atlantic announce major milestones.
6 hours ago
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Australia’s national science agency puts battery chemistries to test in tropical conditions
Researchers from Australia’s national science agency have teamed with Malaysian authorities to explore how different battery chemistries perform under tropical stressors like heat, humidity and corrosion, and what this means for durability, safety and cost-effectiveness.
GES rolls out manganese-hydrogen battery with significant cost edge over lithium-ion
According to GES, the manganese-hydrogen battery it has developed represents an advanced solution for long-duration energy storage. The technology enables energy to be stored for many hours or even days, overcoming the structural limitations of lithium-ion batteries, which are primarily designed for short-duration applications.
Why sodium-ion can’t yet challenge lithium-ion’s reign
A new generation of sodium-ion (Na-ion) battery cells has been launched as an alternative to the virtual monopoly of lithium-ion (Li-ion). Although the technology is unlikely to displace significant Li-ion market share, recent improvements make Na-ion a viable solution for certain niche applications, with potential for wider usage if cost becomes competitive.
Dutch long-duration energy storage project targets sub-€50/kWh costs with innovative technologies
The SLDBatt project brings together TRL 7 battery technologies – including molten sodium‑salt, saltwater acid–base flow, and hydrogen–iron flow batteries – to deliver an innovative and cost-effective long-duration energy storage solution.
Grid-forming inverters significantly enhance grid stability, US national lab finds
The Kauaʻi Island Utility Cooperative in Hawaii, which deployed storage before grid-forming inverters became available, became a test case for diagnosing grid issues that can arise with older grid-following inverters, and how grid-forming inverters can stabilize a grid.
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Thermal batteries offer alternative to lithium-ion storage
Jaicky Kumar, co-founder and CEO of Voltanova – a deep-tech firm incubated by the Foundation for Science, Innovation and Development (FSID) at the Indian Institute of Science (IISc) – speaks to pv magazine about the company’s thermal battery system and how it compares to lithium-based energy storage.
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Sumitomo Electric supplies flow battery for AI-led smart energy trial in Japan
Sumitomo Electric Industries has installed a vanadium redox flow battery at Osaka Metropolitan University as part of a trial to optimize solar use and energy storage with AI. The project combines the battery with Kansai Electric Power’s cloud-based control platform.
New real-time measurement process can determine State of Charge and battery operational safety
A method developed at Fraunhofer IFAM, known as "dynamic impedance spectroscopy," provides real-time data on a battery's safety status and more, all while it's in operation. This breakthrough is set to enable optimized battery management in electric vehicles and is also intended for applications like photovoltaic storage systems.
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