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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.
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.
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.
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New cathode material for high energy density sodium-ion batteries
Researchers at Karlsruhe Institute of Technology (KIT) in Germany have successfully synthesized, for the first time, a new cathode active material with a specific capacity of 190 mAh/g, potentially paving the way to high energy density sodium-ion batterieies.
Energy-storing carbon fibre composites pave the way to weightless batteries
Building on research work at Sweden's Chalmers University of Technology, Sinonus has developed carbon fiber-based structural batteries that not only store energy but also become an integral part of a product's structure. Their possible span of energy density is said to be around 25-50% of a conventional lithium-ion battery at current technology level.
Brazil’s strategic R&D initative helps learn about energy storage integration into the grid
A total of BRL 300 million ($ 55.5 million) has been allocated to 20 projects proposed by 13 companies. The Brazilian National Electric Energy Agency (ANEEL) announced the results of the winning projects, which should help inform future integration of energy storage projects.
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Interview with Trina Storage: We expect consolidation in the coming years
In a recent interview with pv magazine Italia, Gabriele Buccini, head of utility storage at Trina Solar, talked about the company's vertical integration and its forecasts for the storage market. “There is enough capacity available to drive prices down in 2024 in an anomalous way,” Buccini said when talking about global battery energy storage production levels.
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New solid state zinc battery with superb cycle performance
Researchers in Australia have developed a new class of solid electrolytes for rechargeable aqueous zinc-iodine batteries, which has allowed for extended lifespan and high-efficiency. Symmetric cells employing this electrolyte have demonstrated excellent cycle performance, maintaining stability for approximately 5,000 hours at room temperature, while all-solid-state ZnI2 batteries exhibit over 7,000 cycles with a capacity retention exceeding 72.2%.
High-efficiency, high-energy all-solid-state sodium-air battery
Researchers in South Korea have successfully demonstrated the use of free ambient air as a fuel leveraging a sodium-based solid electrolyte to tackle the carbonate issue that has been holding back the rollout of metal-air batteries. Their sodium-air battery cell has demonstrated high efficiency, incresed energy density, and a broad voltage range.
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