Method of determining acid stratification in rechargeable batteries
First Claim
1. A method of determining a stratification of an electrolyte in an active mass of positive electrode plates in rechargeable batteries comprising:
- determining a variation of at least one of a charging current and a charging voltage of the rechargeable battery occurring during charging of the rechargeable battery; and
detecting a stratification of the electrolyte from an increased charging current consumption in the rechargeable battery as compared to an identical rechargeable battery without stratification when there is a fixed charging voltage variation or a reduced charging voltage when there is a fixed charging current variation.
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Abstract
A method of determining a stratification of an electrolyte in an active mass of positive electrode plates in rechargeable batteries includes determining a variation of at least one of a charging current and a charging voltage of the rechargeable battery occurring during charging of the rechargeable battery; and detecting a stratification of the electrolyte from an increased charging current consumption in the rechargeable battery as compared to an identical rechargeable battery without stratification when there is a fixed charging voltage variation or a reduced charging voltage when there is a fixed charging current variation.
16 Citations
18 Claims
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1. A method of determining a stratification of an electrolyte in an active mass of positive electrode plates in rechargeable batteries comprising:
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determining a variation of at least one of a charging current and a charging voltage of the rechargeable battery occurring during charging of the rechargeable battery; and
detecting a stratification of the electrolyte from an increased charging current consumption in the rechargeable battery as compared to an identical rechargeable battery without stratification when there is a fixed charging voltage variation or a reduced charging voltage when there is a fixed charging current variation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A charging device for rechargeable batteries comprising a temperature sensor for measuring the battery temperature and a charge controller for carrying out a method comprising:
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determining a variation of at least one of a charging current and a charging voltage occurring during charging of the rechargeable battery; and
detecting a stratification of the electrolyte from an increased charging current consumption in the rechargeable battery as compared to an identical rechargeable battery without stratification when there is a fixed charging voltage variation or a reduced charging voltage when there is a fixed charging current variation.
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Specification