METHOD FOR DETERMINING AN AGING CONDITION OF A BATTERY CELL BY MEANS OF IMPEDANCE SPECTROSCOPY
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a method for determining an aging condition of a battery cell. The method has the following steps of a) providing a battery cell, b) recording an impedance spectrum of the battery cell, c) determining an evaluation quantity based on the measured impedance spectrum, and d) determining an aging condition of the battery cell based on a comparison of the evaluation quantity to a reference value.
28 Citations
30 Claims
-
1-10. -10. (canceled)
-
11. A method for determining an aging condition of a battery cell, including the steps of:
-
a) furnishing a battery cell; b) recording an impedance spectrum of the battery cell; c) ascertaining an evaluation variable based on a measured impedance spectrum; and d) determining an aging condition of the battery cell based on a comparison of the evaluation variable with a reference value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A use of an impedance spectrum of a battery cell for determining an aging condition of a rechargeable battery which includes the battery cell.
Specification