Technologies
Technologies pv magazine
Technologies pv magazine

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

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Biwatt releases sodium-ion storage system for C&I applications Biwatt launched the modular PowerLake I3 sodium-ion storage system for C&I applications, offering 43.6 kWh–2.09 MWh configurations using NFPP cells. Available as indoor racks or IP55 outdoor cabinets, it delivers up to 65.5 kW per 130.8 kWh unit and is rated for 8,000 cycles.
Emiliano Bellini
5 hours ago
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UL Solutions launches certification program for bidirectional EV storage UL Solutions has launched a certification program for bidirectional electric vehicle supply equipment (BEVSE), opening formal compliance testing for AC-based vehicle-to-grid systems under the UL 1741 Supplement SC standard.
Ben Zientara
9 hours ago
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Iron-mediated cathode enables 206 Wh/kg sodium-ion pouch cell Chinese researchers have developed an iron-mediated strategy that improves the reversibility and stability of lattice-oxygen redox reactions in sodium-ion battery cathodes. A 15.8 Ah pouch cell using the cathode achieved an energy density of 206 Wh/kg, with lattice-oxygen redox reversibility reaching 99%.
Lior Kahana
Sep 11, 2026
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NTPC invites bids for sodium-ion battery pilot in India India’s NTPC plans to set up a sodium-ion battery energy storage system (BESS) pilot to assess the technology’s performance, safety, and commercial viability under local grid and climate conditions.
Uma Gupta
Sep 10, 2026
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New electrode design by German institutes increases battery energy density by up to 15% Fraunhofer ISE and its partners have developed thicker electrodes that could increase battery cell energy density by 10% to 15% without adding weight. The PFAS-free, solvent-free concept has been demonstrated in lithium-ion, sodium-ion, and zinc-ion cells and is designed for cost-effective mass production.
Lior Kahana
Sep 09, 2026
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HiNa Battery scales Korean sodium-ion partnership from 15 MWh to 10 GWh The agreement follows a 15 MWh validation program covering utility-scale, commercial and residential storage applications.
Vincent Shaw
Sep 08, 2026
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Interview with ESS Inc CEO Drew Buckley ESS Inc President and CEO Drew Buckley tells ESS News the company has pivoted its strategy in 2026 around sodium-ion storage, citing nearly $1 billion in early-stage opportunities and a more measured approach to its iron flow technology amid tight liquidity.
Tristan Rayner
Sep 04, 2026

All Technologies news

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Rechargeable zinc batteries: Overcoming challenges and finding opportunities   Josef Daniel-Ivad from the Zinc Battery Initiative updates the current scaling of zinc battery manufacturers and technology.
Josef Daniel-Ivad
May 18, 2026
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Alsym and Juniper to deploy 500 MWh of US sodium-ion battery storage Strategic agreement will see California-based renewables developer ramp up sodium-ion battery deployment. Deal follows Alsym Energy entering 8.5 GWh partnership with iron flow battery business ESS.
Matthew Lynas
May 12, 2026
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SoftBank to make next-gen zinc-halogen battery cells in Japan for AI data centers SoftBank's mobile arm is gearing up to scale the intriguing zinc-halogen battery cell chemistry to 1 GWh annual production.
Tristan Rayner
May 11, 2026
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BloombergNEF confirms energy storage has reached the 100 GW era A record year, and an incredibly strong outlook for the energy storage sector.
Tristan Rayner
May 11, 2026
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New electrolyte tech enables stable operation of high-voltage sodium-ion batteries U.S. researchers developed a meta-weakly solvating electrolyte that optimizes sodium-ion solvation structure, enabling faster ion transport, reduced side reactions, and improved interfacial stability in high-voltage sodium-ion batteries. This design significantly extends cycle life and outperforms conventional and localized high-concentration electrolytes by promoting more uniform and stable electrode–electrolyte interfaces.
Emiliano Bellini
May 08, 2026
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ESS Tech to add 8.5 GWh of US-made sodium‑ion batteries to its portfolio ESS Tech is complementing its iron flow storage offering, which is engeeneered for the 8–24 hour long-duration segment, with sodium-ion battery products aimed at short and medium-duration applications.
Marija Maisch
Apr 30, 2026
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New partnership advances sodium-ion manufacturing in Spain In a week marked by the largest sodium-ion battery order to date, widely seen as a watershed moment for the technology’s commercialization at scale, one of Europe’s emerging players, Spain’s Bihar Batteries, is strengthening the outlook for European-made sodium-ion batteries.
Marija Maisch
Apr 29, 2026
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CATL secures world’s largest sodium-ion battery order with Hyperstrong The two companies announced a 60 GWh supply agreement on Monday, marking a pivotal step in the commercialization of sodium-ion battery technology.
Marija Maisch
Apr 27, 2026
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Control, not capacity, could be the next driver of US residential storage investment Investors are shifting focus from deployment growth to platforms that can orchestrate and monetize battery fleets.
Phoebe Skok
Apr 17, 2026

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