@article{25320,
  keywords = {nickel, zinc, electrodes, nickel oxide},
  author = {Waltraud Taucher and Thomas C Adler and Frank R McLarnon and Elton J Cairns},
  title = {Development of lightweight nickel electrodes for zinc/nickel oxide cells},
  abstract = {<p>A method for fabricating lightweight nickel electrodes has been developed by electrochemical impregnation of two different nickel fiber substrates. The electrochemical impregnation technique was applied galvanostatically at 35–50 mA/cm<sup>2</sup> in acidic solutions of nickel and cobalt nitrates (pH = 3). The nickel and cobalt contents of impregnated and formed electrodes was analyzed with atomic absorption spectrometry (AAS) and the amount of active nickel hydroxide was calculated. NiOOH electrode cycle-life performance testing was carried out in alkaline electrolyte (4.2–6.9 M KOH, 1 M LiOH) at a ∼<em>C</em>/5 rate during charge and discharge. Electrodes based on substrate materials of high porosity (90%, FN 090 Nickel Felt, Sorapec) deliver excellent specific capacities of 133–145 mAh/g in moderately alkaline electrolyte (4.2 M KOH) with an active material utilization of 67–95% depending on the quantity of co-precipitated cobalt (1.3–8.3%). NiOOH electrodes using substrates with lower porosity (81%, Fibrex 50/50 = fiber/Ni powder, National Standard) obtain very stable specific capacities (400 cycles) of 91–93 mAh/g with a utilization rate of 110% in highly alkaline electrolytes (6.9 M KOH).</p>},
  year = {1996},
  journal = {Journal of Power Sources},
  volume = {58},
  pages = {93-97},
  month = {01/1996},
  doi = {10.1016/0378-7753(96)02327-0},
  language = {eng},
}