Method for monitoring and controlling the charging of gastight alkaline rechargeable batteries
First Claim
1. A method of controlling charging of a gastight alkaline rechargeable battery comprising:
- determining characteristics of critical charging voltage (Ucrit) of the rechargeable battery as a function of charging current (I) at selected temperatures (T);
linearizing the critical charging voltage according to the follow formula;
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Abstract
In a method for monitoring the charging of gastight alkaline rechargeable batteries, the characteristics of the critical charging voltage (Ucrit) on a rechargeable battery are determined as a function of the charging current (I) for various temperatures (T) and are linearized by means of a function in the form A(I)×T+B(I). The value pairs A and B are stored as parameter arrays in a battery management system, and during operation of a physically identical rechargeable battery which is to be monitored, the associated critical charging voltage is calculated by measuring the temperature and charging current and is used to control the charging of the rechargeable battery. On reaching the critical charging voltage (Ucrit) which corresponds to the critical state of charge (LZcrit), the value of the critical state of charge can be calculated by measuring the current (I) and temperature (T).
29 Citations
5 Claims
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1. A method of controlling charging of a gastight alkaline rechargeable battery comprising:
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determining characteristics of critical charging voltage (Ucrit) of the rechargeable battery as a function of charging current (I) at selected temperatures (T);
linearizing the critical charging voltage according to the follow formula;
- View Dependent Claims (2, 3, 4, 5)
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Specification