Method for determining the aging of a battery storage device, apparatus, and computer program product

A method for determining an aging of a battery storage device by means of at least partial use of the “high-precision coulometry” (HPC) method, the method comprising:

• a) running through at least two cycles of a cycling process for determining the aging of the battery storage device for the purpose of measuring parameters within the cycles in a temporally first phase;
• b) manipulating measurement data formed by the parameters measured over the cycles in a second phase in such a way that at least one part of the measurement data from at least one part of the cycles is changed within the cycles with respect to parameters at least partially correlating with an upper voltage limit and a lower voltage limit in such a way that, over all cycles of the part of the cycles, a first value of the upper voltage limit is almost never exceeded and a second value of the lower voltage limit is almost never undershot;
• c) forming a generated measurement data set for the part of the cycles in such a way that modified at least partially correlating parameters of the manipulated part of the measurement data and the unmanipulated part of the measurement data from the part of the cycles are merged;
• d) generating signals representing the values of the generated measurement data for processing using the HPC method;
• and
• e) determining the aging on a basis of the processing of at least the signals representing the values of the generated measurement data.