With the rapid adoption of start-stop systems and hybrid/electric vehicles (HEVs/EVs), there is an escalating demand for 12V auxiliary energy storage systems that can operate reliably under dynamic conditions.
In the energy storage space, lead-acid batteries (LABs) remain a cost-effective and scalable solution, provided their performance is optimized in three key areas: Pulse Power Characterisation (PP), Charge Acceptance (CA), and Charge Recovery (CR). These parameters are critical to supporting high-current, short-duration loads from systems like Electric Power Steering (EPS) and Heating, Ventilation, and Air Conditioning (HVAC), while maintaining voltage stability for sensitive electronic control units (ECUs) under dynamic driving conditions.
In this context, we present our advances focusing on engineering the negative active mass (NAM) with conductive additives and pore-forming agents to improve internal conductivity, reduce resistance and voltage drop. These modifications enhance charge transfer kinetics, lower sulfation rates, and improve electrochemical reversibility.
Furthermore, structural innovations such as continuous rolled thin grid technology to improve current distribution, reduce corrosion, enhance mechanical durability and active surface area. These improvements, combined with next-generation material additives, contribute to significantly improved battery performance.
These developments not only extend the cycle life and dynamic responsiveness of LABs but also reinforce their viability as a competitive and environmentally sustainable solution for modern automotive applications.