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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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
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UNIGRID completes Hyundai accelerator test of sodium-ion cells UNIGRID has completed technology validation of its sodium chromium oxide (NCO) sodium-ion cells through Hyundai Motor Group's ZER01NE Accelerator program, with Hyundai planning to jointly develop a sodium-ion battery energy storage system (BESS).
Brian Publicover
Sep 02, 2026
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Texas Instruments introduces chip-level diagnostics to improve grid-scale battery cell safety Active monitoring via EIS results in a new approach to monitoring battery cell health, resulting in a step-change in understanding, safety, and bankability.
Tristan Rayner
Sep 02, 2026

All Technologies news

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Energy storage finance fell 41%, year-to-June, despite rebound in project deals Political uncertainty and new trade tariffs have been cited by Mercom Capital Group as dampening activity.
Luis Ini
Aug 20, 2025
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Spain’s CIUDEN tests sodium-sulfur battery in conjunction with solar, hydrogen production The 5.8 MWh battery storage system is integrated with a 2.1 MW solar plant and two electrolyzers to produce green hydrogen.
Pilar Sanchez Molina
Aug 19, 2025
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South Korean researchers develop nanoscale zinc-anode coating to boost stability in water-based zinc-ion batteries A thin polymer coating improves zinc-ion battery lifespan by preventing dendrites and harmful side reactions.
Tristan Rayner
Aug 13, 2025
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UCB Power and FAS launch sodium battery solar project in Amazon community It's Brazil’s first photovoltaic power plant with sodium battery storage, using 16 batteries for 38.40 kWh of overall storage.
Lívia Neves
Aug 12, 2025
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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.
Uma Gupta
Aug 08, 2025
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Lyten steps up again to buy Northvolt’s $5 billion battery empire in Sweden and Germany After a series of acquisitions, US startup Lyten has furthered its Northvolt acquisitions, buying the failed company's Swedish and German assets, marking a major shift in Europe’s battery landscape.
Tristan Rayner
Aug 08, 2025
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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.
Brian Publicover
Aug 06, 2025
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Battery recycling centre launched at University of Adelaide, Australia The federal government’s Australian Research Council has launched a new center in South Australia that will seek to provide industry-led solutions for the recovery, reuse and recycling of battery waste in Australia.
David Carroll
Aug 06, 2025
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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.
Jochen Siemer
Aug 04, 2025

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