HELENA Project

⚡ 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? Fast charging performance depends heavily on how quickly ions can move through the electrolyte inside a battery. Within the #HELENAproject, advanced halide-based solid electrolytes are being developed with high ionic conductivity, helping enable safer and more efficient fast-charging solid-state batteries. 🔋 💡 Improving ion transport is a key step toward the next generation of high-performance energy storage technologies. #SolidStateBatteries #FastCharging #BatteryInnovation #HELENAProject

⚡ 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? One of the main challenges in conventional batteries is the formation of lithium dendrites; tiny needle-like structures that can grow over time and lead to short circuits and safety risks. Solid-state batteries offer a promising solution. By replacing liquid electrolytes with solid materials, they can limit or even prevent dendrite growth, improving both safety and lifetime. Within the #HELENAproject, advanced materials are being developed to better understand and control these phenomena, contributing to safer and more reliable battery technologies. 🔋 💡 Tackling dendrites is key to unlocking the full potential of next-generation energy storage. #SolidStateBatteries #BatterySafety #EnergyStorage #HELENAProject

🤝 𝗦𝘁𝗮𝘆𝗶𝗻𝗴 𝗮𝗹𝗶𝗴𝗻𝗲𝗱 𝘁𝗼 𝗺𝗼𝘃𝗲 𝗳𝗼𝗿𝘄𝗮𝗿𝗱 Yesterday, the #HELENAproject Work Package Leader Board held its latest meeting, bringing together partners to review ongoing progress and coordinate next steps. As we continue advancing our work on halide-based solid-state batteries, these regular exchanges are key to ensuring alignment across all work packages, addressing challenges early, and keeping momentum strong. 🔋 Collaboration remains at the core of HELENA as we work together towards more efficient, safe, and scalable energy storage solutions. #SolidStateBatteries #EnergyStorage #BatteryInnovation #HELENAProject

⚡ 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? The performance of a battery strongly depends on how fast ions can move through the electrolyte. This property, known as ionic conductivity, is key to enabling efficient charge and discharge processes. In solid-state batteries, halide-based electrolytes stand out for their high ionic conductivity, approaching that of liquid electrolytes while maintaining improved safety and stability. Within the #HELENAproject, advanced halide materials are being developed to unlock high-performance, safer, and more reliable energy storage solutions for applications such as electric mobility and beyond. 🔋 💡 Improving ionic transport is essential to achieving faster charging and better battery performance. #SolidStateBatteries #EnergyStorage #BatteryInnovation #HELENAProject

🔋 𝗙𝗿𝗼𝗺 𝗺𝗮𝘁𝗲𝗿𝗶𝗮𝗹𝘀 𝘁𝗼 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗰𝗲𝗹𝗹 𝗱𝗲𝘀𝗶𝗴𝗻: 𝗮𝗱𝘃𝗮𝗻𝗰𝗶𝗻𝗴 𝘀𝗼𝗹𝗶𝗱-𝘀𝘁𝗮𝘁𝗲 𝗽𝗼𝘂𝗰𝗵 𝗰𝗲𝗹𝗹 𝗮𝘀𝘀𝗲𝗺𝗯𝗹𝘆 Within the #HELENAproject, a key milestone has been achieved with the definition of a reference architecture and assembly methodology for 40 mAh monolayer solid-state pouch cells based on halide electrolyte technology. Led by AIT Austrian Institute of Technology, this work establishes a reproducible and scalable baseline configuration, paving the way toward the development of 1–10 Ah multilayer pouch cells. The deliverable provides a comprehensive framework covering: 📐 Standardized cell design and stack configuration ⚙️ A detailed, step-by-step assembly workflow ⚠️ Identification of critical process bottlenecks — particularly in densification 🧪 Optimized processing conditions to ensure performance and scalability By addressing key challenges such as interfacial contact, ionic conductivity, and mechanical integrity, this work bridges the gap between material innovation and manufacturable cell architectures. 🚀 A crucial step forward in bringing halide-based solid-state batteries closer to real-world applications. #SolidStateBatteries #BatteryManufacturing #EnergyStorage

🚀 𝗣𝘂𝘀𝗵𝗶𝗻𝗴 𝗳𝗼𝗿𝘄𝗮𝗿𝗱 𝗶𝗻 𝘁𝗵𝗲 𝗳𝗶𝗻𝗮𝗹 𝘀𝘁𝗮𝗴𝗲𝘀 𝗼𝗳 𝘁𝗵𝗲 𝗛𝗘𝗟𝗘𝗡𝗔 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 The #HELENAproject Work Package Leader Board has continued working intensively to drive progress across all technical areas. In our latest monthly meeting, partners reviewed recent achievements, aligned ongoing activities, and coordinated the next steps to address the key challenges ahead. This phase is critical to ensure the successful development and integration of our solid-state battery technologies, strengthening collaboration across the consortium and maintaining momentum toward our shared goals. 🔋 🤝 A big thank you to all partners for their continued commitment and dedication. #BatteryInnovation #SolidStateBatteries #Collaboration #HELENAProject

🌡️ 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? Solid-state batteries can operate across a wider temperature range than conventional lithium-ion batteries, making them suitable for demanding environments where performance and reliability are critical. Within the #HELENAproject, the development of advanced materials such as halide-based electrolytes supports stable battery operation under varying conditions, opening the door to applications in sectors like electric mobility and aviation. ✈️🔋 💡 Expanding the operating window of batteries is key to enabling safer and more robust energy storage solutions in real-world conditions. #SolidStateBatteries #EnergyStorage #BatteryInnovation #HELENAProject

🌍 𝗛𝗘𝗟𝗘𝗡𝗔 𝗮𝘁 𝗧𝗵𝗲 𝗕𝗮𝘁𝘁𝗲𝗿𝘆 𝗦𝗵𝗼𝘄 𝗔𝘀𝗶𝗮 𝟮𝟬𝟮𝟲 The HELENA Project was present at The Battery Show Asia 2026, one of the leading global events for battery technologies and energy storage, held in Hong Kong from March 10–12. Our partner FEV Group represented the project at the event, sharing insights into HELENA’s work on next-generation solid-state batteries based on halide electrolytes. The exhibition brought together hundreds of companies and thousands of professionals from across the global battery ecosystem, providing an excellent platform to showcase European research and foster international collaboration. Events like this are key to connecting cutting-edge research with industry and market stakeholders, helping accelerate the transition toward safer and more sustainable battery technologies. 🔋🌍 #BatteryShowAsia #SolidStateBatteries #BatteryInnovation #HELENAProject #EnergyStorage

🧪 𝗨𝗹𝘁𝗿𝗮-𝘁𝗵𝗶𝗻, 𝗹𝗼𝘄-𝗽𝗼𝗿𝗼𝘀𝗶𝘁𝘆 𝘀𝗲𝗽𝗮𝗿𝗮𝘁𝗼𝗿 𝗺𝗲𝗺𝗯𝗿𝗮𝗻𝗲𝘀 𝘃𝗶𝗮 𝗲𝘅𝘁𝗿𝘂𝘀𝗶𝗼𝗻 As part of the #HELENAproject, Fraunhofer IST has successfully demonstrated the extrusion-based fabrication of halide-based separator membranes for solid-state batteries. By fine-tuning the extrusion process — using moderate screw speed, medium throughput, and a processing temperature of 20 °C — Fraunhofer produced self-standing separator films with very low thickness and reduced porosity, key characteristics for high-performance battery operation. These results highlight the potential of extrusion processing to deliver uniform separator membranes that meet the requirements for solid-state battery assembly. 🔋 #SolidStateBatteries #SeparatorMembranes #BatteryInnovation #HELENAProject #FraunhoferIST

🚀 𝗛𝗶𝗴𝗵-𝗰𝗮𝗽𝗮𝗰𝗶𝘁𝘆 𝗰𝗮𝘁𝗵𝗼𝗱𝗲𝘀 𝗲𝗻𝗮𝗯𝗹𝗲𝗱 𝗯𝘆 𝗲𝘅𝘁𝗿𝘂𝘀𝗶𝗼𝗻 𝗽𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴 Within the #HELENAproject, our partner Fraunhofer IST has achieved a key milestone in the fabrication of halide-based cathodes using extrusion processing. By optimizing critical extrusion parameters — including screw speed, feeding rate, and processing temperature — Fraunhofer identified optimal conditions that ensure slurry homogeneity, controlled viscosity, and suitable particle size distribution. The selected process allows the production of high-capacity cathodes with mass loadings above 4 mAh/cm², a crucial requirement for next-generation solid-state batteries. This achievement represents an important step toward scalable manufacturing of high-performance battery electrodes. 🔋 #SolidStateBatteries #CathodeDevelopment #BatteryManufacturing #HELENAProject #FraunhoferIST