Battery knowledge · Testing methods
Accelerated aging test
Aging cells faster than in service — at higher temperature, higher SOC or higher rate — and extrapolating to real conditions with a model such as Arrhenius. The extrapolation only holds if acceleration does not change which mechanism dominates.
Example
Temperature and reaction rate
At 25 °C: 1×. At 35 °C: 1.924×. At 45 °C: 3.554×.
The equation uses kelvin. One activated process is represented, not lifetime.
Explore the graph
Compare an activated process with its rate at 25 °C.
At 25 °C: 1×. At 35 °C: 1.924×. At 45 °C: 3.554×.
k(T)/k(T_ref) = exp[(Eₐ/R)(1/T_ref − 1/T)]
Illustrative model. The equation uses kelvin. One activated process is represented, not lifetime.
Use in Lemonergy
Record specimen, state, instrument, temperature and timing.
This is a reference concept. No executable Lemonergy block has been verified for this term.
References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- Battery Test Manual For Electric Vehicles, Revision 3
Jon P. Christopherson · Idaho National Laboratory · 2015
Topic background · Performance characterization, pulse resistance/power, life testing and reference performance tests; historical 2015 edition.