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Battery pack assembled with recycled batteries and method of assembly

  • US 8,742,723 B2
  • Filed: 06/12/2008
  • Issued: 06/03/2014
  • Est. Priority Date: 06/20/2007
  • Status: Active Grant
First Claim
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1. A method of assembling a battery pack with reused batteries that have previously been used as power sources for electric vehicles or hybrid electric vehicles, the method comprising:

  • measuring a full charge capacity of each of a plurality of used secondary batteries;

    selecting at least two of the plurality of used secondary batteries, from which a first battery has a largest full charge capacity and a second battery has a smallest full charge capacity, so that a difference in full charge capacity between the largest full charge capacity and the smallest full charge capacity is within 10% of the smallest full charge capacity; and

    assembling only the selected at least two of the plurality of used secondary batteries to constitute the battery pack with only reused batteries selected by measurement of respective full charge capacity, whereinthe largest full charge capacity is different from the smallest full charge capacity.

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