BATTERY ANALYSIS DEVICE AND METHOD THEREOF
First Claim
1. A battery analysis device for a battery module having at least one battery cell, comprising:
- a power source supply unit for providing a variable-frequency voltage signal to the at least one battery cell, the variable-frequency voltage signal having a plurality of frequencies in a range between a first frequency and a second frequency;
a signal capturing unit for capturing a current signal generated by the at least one battery cell in response to the variable-frequency voltage signal;
a signal adjusting unit connected to the power source supply unit and the signal capturing unit for receiving and adjusting the variable-frequency voltage signal and the current signal to generate an adjusted variable-frequency voltage signal and an adjusted current signal;
a frequency domain analyzing unit connected to the signal capturing unit for receiving and analyzing in frequency domain the adjusted variable-frequency voltage signal and the adjusted current signal to obtain a frequency domain parameter;
a time domain analyzing unit connected to the signal capturing unit for receiving and analyzing in time domain the adjusted variable-frequency voltage signal and the adjusted current signal to obtain a time domain parameter; and
a processing unit connected to the frequency domain analyzing unit and the time domain analyzing unit for receiving the frequency domain parameter and the time domain parameter and obtaining electrochemistry characteristics of the at least one battery cell based on the frequency domain parameter and the time domain parameter.
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Abstract
A battery analysis device for a battery module having at least one battery cell includes a power source supply unit, a signal capturing unit, a signal adjusting unit, a frequency domain analyzing unit, a time domain analyzing unit, and a processing unit. The power source supply unit provides a variable-frequency voltage signal to a battery cell. The signal capturing unit captures a current signal generated by a battery cell in response to the variable-frequency voltage signal. The signal adjusting unit adjusts the variable-frequency voltage signal and the current signal. The frequency domain analyzing unit and time domain analyzing unit analyze both the adjusted variable-frequency voltage signal and the adjusted current signal in frequency domain and time domain respectively for obtaining a frequency domain parameter and a time domain parameter. The processing unit obtains electrochemistry characteristics of the battery cell according to the frequency and the time domain parameters.
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Citations
13 Claims
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1. A battery analysis device for a battery module having at least one battery cell, comprising:
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a power source supply unit for providing a variable-frequency voltage signal to the at least one battery cell, the variable-frequency voltage signal having a plurality of frequencies in a range between a first frequency and a second frequency; a signal capturing unit for capturing a current signal generated by the at least one battery cell in response to the variable-frequency voltage signal; a signal adjusting unit connected to the power source supply unit and the signal capturing unit for receiving and adjusting the variable-frequency voltage signal and the current signal to generate an adjusted variable-frequency voltage signal and an adjusted current signal; a frequency domain analyzing unit connected to the signal capturing unit for receiving and analyzing in frequency domain the adjusted variable-frequency voltage signal and the adjusted current signal to obtain a frequency domain parameter; a time domain analyzing unit connected to the signal capturing unit for receiving and analyzing in time domain the adjusted variable-frequency voltage signal and the adjusted current signal to obtain a time domain parameter; and a processing unit connected to the frequency domain analyzing unit and the time domain analyzing unit for receiving the frequency domain parameter and the time domain parameter and obtaining electrochemistry characteristics of the at least one battery cell based on the frequency domain parameter and the time domain parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A battery analysis method for a battery module having at least one battery cell, comprising:
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providing a variable-frequency voltage signal to the at least one battery cell, the variable-frequency voltage signal having a plurality of frequencies in a range between a first frequency and a second frequency; capturing a current signal generated by the at least one battery cell in response to the variable-frequency voltage signal; adjusting the variable-frequency voltage signal and the current signal to generate an adjusted variable-frequency voltage signal and an adjusted current signal; analyzing in frequency domain the adjusted variable-frequency voltage signal and the adjusted current signal to obtain a frequency domain parameter; analyzing in time domain the adjusted variable-frequency voltage signal and the adjusted current signal to obtain a time domain parameter; and obtaining electrochemistry characteristics of the at least one battery cell based on the frequency domain parameter and the time domain parameter. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification