DE3216412

The actual charge state of accumulators having an electrolyte which takes part in the electrochemical conversion (e.g. a lead-acid accumulator) is determined in that the charge taken up to a specific point in time from the accumulator having the useful capacity (KN) is measured both in terms of elec...

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Bibliographic Details
Main Author WINSEL, AUGUST, .. DR., 6233 KELKHEIM, DE
Format Patent
LanguageEnglish
Published 17.01.1991
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TESTING
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Summary:The actual charge state of accumulators having an electrolyte which takes part in the electrochemical conversion (e.g. a lead-acid accumulator) is determined in that the charge taken up to a specific point in time from the accumulator having the useful capacity (KN) is measured both in terms of electron charge levels (= KC) as well as via the change in the electrolyte density (KD). The weakening of the electrolyte in the plate pores results in a difference KC-KD = DELTA K. The residual charge (KR) which is in reality still available - the current charge state - follows from the relationship KR = KN-KC- alpha DELTA K, in which the proportionality constant alpha , which is a function of the structure, has a value between 1 and 1.2. The charge values corresponding to the charges KC and KD removed and the current charge value KR corresponding to these values can be signalled on a three-row scale by means of measuring marks (1, 2, 3).
Bibliography:Application Number: DE19823216412