High-temperature endurance test for automotive 12V batteries

Agenda for
5-9 September

Eckhard Karden
Technical Expert Battery & Energy Storage Technology, Ford Research & Innovation Center
ELBC Technical Session presentation:
High-temperature endurance test for automotive 12V batteries

Durability at high temperature is very important for automotive batteries, and several test methods have been established in standards and specifications to assess, in particular, robustness against corrosion and water loss. For micro-hybrid vehicles, it has been shown that these tests are not necessarily representative of field conditions, and would - in particular - prohibit several technologies (e.g., negative mass additives) that would enhance dynamic charge acceptance and rechargeability. Within the framework of CENELEC TC 21X, the European battery standardization group, a new test procedure has been developed that should better represent field life in modern vehicles. The paper will present extensive validation data and suggest levels of durability criteria.

Progress in development of test procedures for European Standards of EN 50342 family – New Version of Micro Hybrid Test (MHT).


Eckhard Karden received a PhD in Electrical Engineering and a diploma in Physics from RWTH Aachen University of Technology, Germany. Currently, he is the Technical Expert for Battery & Energy Storage Technology at Ford's Corporate Research and Advanced Engineering Centre in Aachen, Germany. In this role, Eckhard has been responsible for numerous projects in the fields of powertrain electrification, battery modelling and monitoring, and storage technology assessment, all with a main focus on micro-hybridization in 14-V systems.