BBDF 2025: Flexible grid access opens up new paths for battery storage in Germany
Flexible connections, better optimization, and theneed for better cooperation between parties for grid connections were all hot topics in the German-focused second session of the event.
BBDF 2025: Europe’s battery market is still immature
From the floor of the Battery Business & Development Forum 2025, the first session delivered insights around investment strategies in battery energy storage systems across Europe and the UK.
Wireless EV charging based on PV, three-port DC–DC converter
Scientists have developed a wireless charging system for electric vehicles, with a three-port DC–DC converter at its core. They have simulated the system and tested a prototype in their lab and have found it achieved an improved efficiency of 88%.
What’s behind the aging mechanism of sodium-ion batteries
Researchers in China have used electrochemical impedance spectroscopy to analyze the state of health of sodium-ion batteries. Extracting four features from the measurements, they were able to create a machine learning model for a temperature-resistant state of health estimation method.
German court upholds grid connection charges for battery projects
Germany’s top court has ruled that distribution network operators may require battery storage projects to pay grid connection fees, calling the charges fair as they help prevent overbuilding and shield consumers from excess system costs.
Enva unveils certified battery safe box to combat lithium battery fire risks
New fire-resistant container aims to enhance the safe transport of waste lithium-ion batteries across the United Kingdom and Ireland.
Worldwide battery storage installations up 54% in first half of 2025, June sets monthly record
New data from Rho Motion shows that over half of June’s installations were concentrated in China, maintaining the country’s dominance in the global energy storage market.
Photovoltaics for cargo ships
Wattlab has installed a PV system capable of delivering up to 35 kW to a cargo ship’s high-voltage propulsion system, allowing it to temporarily replace one of four diesel generators under optimal conditions.
Upcycling solar glass waste to use in solid-state lithium batteries
Nanyang Technological University researchers have milled solar panel glass waste for use in cathodes used in solid state lithium metal batteries. When used as a functional filler in solid polymer electrolyte (SPE) material, the resulting battery performance was maintained over 80 charge cycles with an 8.3 % improvement over the reference device.
CATL, Sungrow and CRRC Zhuzhou lead Chinese energy storage rankings
The China Energy Storage Alliance (CNESA) has released its 2024 rankings of Chinese energy storage companies, with CATL, Sungrow, and CRRC Zhuzhou Institute securing top positions across key segments.
