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Method of measuring residual capacity of a Ni/MH cell

  • US 5,701,078 A
  • Filed: 07/13/1995
  • Issued: 12/23/1997
  • Est. Priority Date: 07/13/1994
  • Status: Expired due to Fees
First Claim
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1. A method of measuring residual capacity of a nickel/metal hydride (Ni/MH) cell comprising the steps of:

  • (i) measuring electrical resistivity of a first Ni/MH cell; and

    (ii) determining the residual capacity of said first Ni/MH cell from said electrical resistivity of said first Ni/MH cell based on a predetermined functional relationship between the electrical resistivity and residual capacity of a second Ni/MH cell which has substantially the same composition as the composition of said first Ni/MH cell, wherein said predetermined functional relationship represents substantially a linear proportionality between the resistivity and the logarithmic value of the residual capacity.

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