BATTERY TESTING METHOD EMPLOYING CAPACITANCE AND DISSIPATION FACTOR MEASUREMENTS

  • US 3,750,011 A
  • Filed: 03/20/1972
  • Issued: 07/31/1973
  • Est. Priority Date: 03/20/1972
  • Status: Expired due to Term
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First Claim
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1. A non-destructive method of testing a fully assembled, but electrolyte-free, electrical storage battery having a hollow casing, a pair of electrically conductive terminal posts extending through the casing from the interior to the exterior thereof in spaced, electrically insulated relationship to each other, a pair of pluralities of electrode plates within the casing, means for normally supporting the plates of one plurality thereof in spaced, interleaved, electrically insulated relationship with the plates of the other plurality thereof, and means for normally electrically connecting the plates of each respective plurality thereof together and with a corresponding terminal post, said method comprising the initial steps of:

  • a. providing means for measurIng the electrical capacitance between a pair of electrical terminal points; and

    b. electrically coupling said capacitance measuring means with said terminal posts of said battery to measure the electrical capacitance therebetween as an indication of the constructional quality of the battery; and

    then the further steps of;

    i. providing means for measuring the amount of dissipation in an electrical capacitance connected between a pair of electrical terminal points; and

    ii. electrically coupling said dissipation measuring means with said terminal posts of said battery to measure the dissipation of the capacitance therebetween as an indication of the oxidation condition of said plates.

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