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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

R&D

Researchers make significant advancement into thermal runaway-free sodium-ion batteries The development of a Polymerizable Non-flammable Electrolyte appears to have helped sodium-ion batteries towards a eureka moment for safety.

Apr 10, 2026

R&D

Titanium emerges as a vanadium alternative for redox flow batteries A Japanese-Chinese team developed a titanium molten salt redox-flow battery using abundant titanium ions and molten salt electrolytes to enable high-voltage, fast, and stable grid-scale energy storage. The system demonstrates high efficiency of over 97%, strong cycling stability, and improved cost and scalability compared to vanadium-based batteries, with further optimization underway.

Emiliano Bellini

Apr 08, 2026

R&D

Conductive smart hydrogels as battery electrolytes: Promising for lithium, sodium, and zinc-ion chemistries Hydrogels offer promise in batteries as an electrolyte, including lithium and sodium chemistries, due to being inherently more safe.

Apr 02, 2026

R&D

Chinese team reports hydrofluorocarbon electrolyte for 700 Wh/kg lithium battery Nature paper shows lithium-metal pouch cells above 700 Wh/kg and operation down to -70 C.

Mar 30, 2026

R&D

Spain completes testing of Europe’s largest research vanadium BESS Spain’s Fundación Ciudad de la Energía (Ciuden), a government energy research foundation, has completed operational testing of a 1 MW/8 MWh vanadium redox flow battery (VRFB) system at its Cubillos del Sil technology center, which it says is the largest vanadium flow battery in Europe dedicated to applied research.

Pilar Sanchez Molina

Mar 24, 2026

R&D

New cost-saving copper welding technique for battery cells revealed by Fraunhofer Resistance projection welding technique could unlock cost-effective copper interconnection potential. Described as a major opportunity for German battery manufacturers, the new approach to copper interconnections will now be used in commercial production.

Mar 20, 2026

pv magazine Global May Edition 2026

New May issue – Now available

Mountains to climb

The May issue of pv magazine Global is out now! Available in print and digital – get your copy today!

pv magazine Focus 2026 announcement box

pv magazine Focus 2026

1-Day Conference

High-level discussions on solar and energy storage across Europe. Experts explore how to plan and execute bankable BESS projects, what quality and warranty factors matter, and how energy management systems optimize residential and C&I applications, including heat pumps, EV charging, and new market opportunities.

1:00 – 5:00 pm, CEST | June 24, 2026

The smarter E Europe, ICM Conference Center | Munich, Germany

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pv magazine Awards 2026

pv magazine Awards 2026

Window is open now!

Entries open in seven categories: Modules, Inverters, BoS, BESS, Manufacturing, Sustainability, Projects.

April 01 – August 31, 2026

SunRise Arabia Update Announcement Box

SunRise Arabia Clean Energy Conference 2026

Saudi Arabia is accelerating its clean energy transition. Join the third SunRise Arabia Clean Energy Conference in 2026 to explore how solar PV and energy storage are powering the Kingdom’s growing digital economy, including data centers. Policymakers, investors, and innovators will share insights on technology, deployment strategies, and long-term value creation in Saudi Arabia’s evolving energy landscape.

9:00 am – 6:00 pm, AST | September 30, 2026

Riyadh, Saudi Arabia

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All R&D news

R&D

Polar Night Energy plans second pilot sand-battery in Finland Polar Night Energy will build a second pilot plant in southern Finland to test its power-to-heat-to-power sand battery technology. The project aims to demonstrate the system’s ability to reconvert stored heat into electricity.

May 05, 2025

R&D

US’ Georgia Tech, Stryten Energy tap lead battery innovation A new battery energy storage system (BESS) will combine academic research and real-world deployment to create a living laboratory for energy storage experimentation.

Apr 28, 2025

R&D

E.ON partners with Superdielectrics to develop novel polymer-based energy storage E.ON is now working with a UK-based battery tech firm to advance more environmentally friendly energy storage for households.

Apr 17, 2025

R&D

South Korean research leads to new lith-ion hybrid anode material “This research offers a pathway to smaller, lighter, and more efficient energy storage for next-generation electronic devices,” said Dongguk University Professor Jae-Min Oh.

Apr 17, 2025

R&D

Unlocking underground energy storage with defunct fossil fuel infrastructure A new study found that housing compressed-air energy storage systems in abandoned oil and gas wells could improve system efficiency by 9.5%.

Apr 01, 2025

Manufacturing

Power electronics for customized battery energy storage Startup p&e power&energy is offering multilevel inverter technology to manufacturers and integrators of battery energy storage systems (BESS). Interconnecting individual cells enables cost savings and the service life and efficiency of the systems, which can be individually configured for each application, can be increased.

Cornelia Lichner

Mar 27, 2025

Technologies

Sulzer, Hyme Energy to commercialize novel molten salt energy storage Sulzer is developing advanced pumps for Hyme Energy’s patented molten hydroxide salt energy storage technology. Building on the success of the pioneering Molten Salts Storage (MOSS) project in Denmark, the partners now seek to commercilize the solution.

Mar 27, 2025

R&D

Pathway to commercialization of aqueous sulfur-based redox flow batteries Researchers in China have identified a series of engineering strategies to bring aqueous sulfur-based redox flow batteries closer to commercial production. Improving catalyst design, ion-selective membranes, and device integration will be key to solve this battery storage technology’s issues.

Emiliano Bellini

Mar 27, 2025

Sodium-ion batteries

China announces procurement of sodium-ion batteries with price ceiling at $150/kWh The innovative project located in a suburban district in the south of Shanghai will integrate five different energy storage technologies, including sodium-ion batteries. Its first phase will have a cumulative capacity of 40 MW/160 MWh.

Mar 24, 2025

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