Narada, in collaboration with Tailan New Energy, has announced a breakthrough in fast-charging and thermal management technology for lithium batteries powering light electric vehicles (LEVs). Their jointly developed ultra-fast charging battery enables 6C super-fast charging, reaching 80% state of charge in just 9 minutes.
This innovation is built on Tailan New Energy's next-generation large cylindrical cell platform: the Cold-Core Battery. Through coordinated advancements in structure, materials, and manufacturing, the technology delivers a significant leap in fast-charging performance.
Structure: Features a unique axial and bottom dual-zone thermal conduction design, dramatically improving heat management for large cylindrical cells.
Materials: Enhances electron and ion transport speeds within the cathode and anode, boosting charge/discharge rates.
Manufacturing: Employs a modular design that increases production line compatibility, facilitating large-scale commercialization.
This holistic approach resolves the traditional conflict between fast-charging performance and heat dissipation. Combined with an operational temperature range of -30°C to 55°C and protection by over 30 core patents, the Cold-Core Battery positions Chinese companies as global rule-makers in the cylindrical battery market.
Effective thermal management is critical for high-rate charging. Cylindrical cells inherently limit contact area with cooling plates, and dense packing for maximum energy density further complicates heat dissipation. Narada addressed these challenges with breakthroughs in pack design and engineering:
Thermal Contact: The pack structure is tailored to the Cold-Core cell casing. High-thermal-conductivity interface materials fill microscopic gaps, ensuring zero-gap, tight coupling between cells and cooling plates for rapid heat extraction during fast charging.
Thermal Network: Computational Fluid Dynamics (CFD)-optimized pack layout, combined with heat-spreading plates, creates a highly efficient 3D thermal conduction network. This maintains temperature variation below 3°C, preventing hot spots, enhancing safety under fast-charging and extreme conditions, and extending cycle life.
Safety Design: Continuous thermal conduction air channels and directional vent structures ensure rapid, targeted gas discharge in the rare event of thermal runaway.
Intelligent Management: Beyond hardware, Narada developed a proprietary Battery Management System (BMS) specifically for LEVs. This system features comprehensive upgrades in hardware functionality, reliability, software platformization, and intelligent applications. It significantly enhances the battery's ability to detect issues, perform diagnostics, and enable remote troubleshooting, ensuring safety and efficiency throughout operation.
The collaboration between Narada and Tailan New Energy redefines the performance boundaries of light-duty lithium batteries with Cold-Core technology. Through full-chain innovation in thermal management, it establishes a new industry benchmark for safe ultra-fast charging.
With the commercial rollout of this battery, the electric two- and three-wheeler market is poised for transformation. The benefits of green mobility are set to reach more users worldwide, accelerating the shift towards safer, faster, and more efficient electric transportation.
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