The role of lead batteries in future automotive power trains

Future vehicle power net applications, like mild-Hybrids, PHEV and BEV, will have new requirements for the low voltage power net architecture. For instance, the engine cranking function will be less important or disappear from the 14V power net. As result the classical starting battery function will be less important or even obsolete. Energy throughput and power pulse capability, also at low temperatures, becomes key to serve new targeted features. Therefore, the 12V battery must be designed for the new requirements and application. Clarios is following consequently this new demand. The battery AGM xEV battery series is designed to meet those new OEM requirements and applications. During the presentation key applications changes, the new requirements and the corresponding battery designs will be highlighted.
As a second trend impacting 12V battery design besides the electrification of the power train, the implementation of additional advanced-driver-assist-functionalitiy up to full autonomous drive functions will bear new requirements for the low voltage power net architecture. One key element will be stability of the low voltage power net for autonomies driving functions. In emergency cases a redundant energy source must be available for safe operation of the vehicle. This presentation give a quick outlook on the advantages of lead-based batteries as redundant energy source for those functions.