Method of determining a frequency interval containing a resonance frequency of a rechargeable battery
First Claim
1. A method of determining a resonance frequency interval containing a resonance frequency of a rechargeable battery, the method comprising:
- applying periodic current or voltage signals of different frequencies in succession to at least one battery cell of the battery;
measuring the temperatures of the at least one battery cell occurring for the different frequencies; and
comparing the temperatures, and subsequent selection of a first frequency of the different frequencies as a first interval value of the resonance frequency interval and a second frequency of the different frequencies as a second interval value of the resonance frequency interval based on the comparison of the temperatures.
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Abstract
Disclosed is a method of determining a resonance frequency interval containing the resonance frequency of a rechargeable battery. The method comprises applying periodic current or voltage signals of different frequencies in succession to a battery cell of the battery. The method also comprises measuring of the temperatures of the battery cell occurring for the different frequencies. In addition, the method comprises comparing of the temperatures, and subsequent selection of an initial frequency of the different frequencies as a first interval value of the resonance frequency interval and a second frequency of the different frequencies as a second interval value of the resonance frequency interval based on the comparison of the temperatures.
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Citations
18 Claims
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1. A method of determining a resonance frequency interval containing a resonance frequency of a rechargeable battery, the method comprising:
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applying periodic current or voltage signals of different frequencies in succession to at least one battery cell of the battery; measuring the temperatures of the at least one battery cell occurring for the different frequencies; and comparing the temperatures, and subsequent selection of a first frequency of the different frequencies as a first interval value of the resonance frequency interval and a second frequency of the different frequencies as a second interval value of the resonance frequency interval based on the comparison of the temperatures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of determining a resonance frequency interval containing a resonance frequency of a rechargeable battery, the method comprising:
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a) applying a first signal of a first frequency to at least one battery cell of the battery; b) applying a second signal of a second frequency to the at least one battery cell of the battery, the second frequency different than the first frequency; c) measuring a first temperature of the at least one battery cell after the first signal is applied to the at least one battery cell; d) measuring a second temperature of the at least one battery cell after the second signal is applied to the at least one battery cell; e) comparing the first temperature and the second temperature; and f) selecting a resonance frequency interval based on the comparison of the first temperature and the second temperature. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification