×

Method for restoring the lost capacity of nickel batteries and batteries formed thereby

  • US 4,680,241 A
  • Filed: 02/25/1985
  • Issued: 07/14/1987
  • Est. Priority Date: 11/29/1983
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for making a battery which includes a nickel positive electrode, a negative electrode, and an electrolyte, said nickel positive electrode having an initial capacity less than a theoretical capacity, C, of said battery, comprising the step ofcycling said battery at least 10 times, each cycle including both a discharging step during which the amount of charge withdrawn from the battery, qD, is greater than or equal to about 5 percent of the capacity achieved during the previous cycle, and a charging stepin which the charging rate is greater than C/10 per hour, the amount of charge delivered to said battery during said charging step, qC, is greater than qD and is chosen so that a temperature of said electrolyte does not exceed about 30 degrees Centigrade.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×