A rechargeable battery of the type polyaniline/propylene carbonate-LiClO4/Li-Al |
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| Authors: | E M Genies P Hany Ch Santier |
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| Affiliation: | (1) Electrochimie Moléculaire, Laboratoires de Chimie, Centre d'Etudes Nucléaires, 85X, 38041 Grenoble, France;(2) Dynamique de Spins et Propriètés Electroniques, Département de Recherche Fondamentale, Centre d'Etudes Nucléaires, 85X, 38041 Grenoble, France |
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| Abstract: | A secondary battery of the type polyaniline/propylene carbonate-LiClO4/Li–Al is described. The polymer is made by aniline oxidation with ammonium persulphate in NH4F, 2.3 HF as solvent. The discharge capacity of the polymer is 100 Ah kg–1 at 25°C and 140 Ah kg–1 at 40°C for current densities of 0.5 mA cm–2 and for an amount of material giving a capacity of 10 mAh. The voltage in open circuit for the fully charged battery is 3.6 V. The average usable potential is 2.8–3 V. The energy density for the polymer lies between 280 and 420 Wh kg–1. The ratio of the amounts of electricity in discharge and charge is one for several hundred deep cycles. The behaviour with regard to self discharge and to constant applied voltage (floating life) is excellent. |
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