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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.
3 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%.
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.
UNSW launches grid protection project for grid-forming BESS and inverters
Researchers at the University of New South Wales have launched a three-and-a-half-year project to examine how inverter-based resources interact with grid protection systems. The AUD 12.9 million initiative will use modeling, simulation and hardware-in-the-loop testing to assess fault-current behavior and protection requirements.
Stackelberg game framework optimizes distributed energy storage allocation
Researchers have developed a game-theory-based method for optimizing the location, capacity and operation of distributed energy storage. Simulations on a 33-node distribution network reportedly reduced load fluctuations from 25.98% to 14.25% while requiring around 85% less storage capacity than conventional methods.
New framework optimizes energy storage for worst-case grid outages
Researchers have developed a framework that simultaneously determines the optimal siting and sizing of energy storage while identifying worst-case grid component failures. They said the framework analyzed power networks with up to 116 buses in less than 100 seconds.
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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.
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%.
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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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Evaluating the profitability of vanadium flow batteries
Researchers in Italy have estimated the profitability of future vanadium redox flow batteries based on real device and market parameters and found that market evolutions are heading to much more competitive systems, with capital costs down to €260/kWh at a storage duration of 10 hours.
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