caa a22 4500 477049907 CHVBK 20180405111338.0 cr unu---uuuuu 170330e19961201xx s 000 0 eng 10.1007/BF00249923 doi (NATIONALLICENCE)springer-10.1007/BF00249923 Aluminium alloys in sulfuric acid Part II: Aluminium-oxygen cells [Elektronische Daten] [S. Müller, F. Holzer, J. Desilvestro, O. Haas] Aluminium alloys were tested in Al/O2 cells with strongly acidic electrolytes containing minor amounts of chloride ions. The faradaic efficiency, the maximum discharge capacity and the peak power of various Al/O2 cells were evaluated. The temperature dependence of the faradaic efficiency was measured for an Al/O2 cell over the temperature range from 15 to 50°C. With a zinc-containing aluminium alloy, a faradaic efficiency of 84% and a cell voltage of 1.6 V at open circuit and 0.7 V at 100 mA cm−2 could be reached. The highest peak power 120 mW cm−2, was obtained with an Al-Zn/Sn alloy. On the basis of the solubility of the anode products in the electrolyte, a limiting specific energy of 70 Wh kg−1 was estimated. The cell voltage depends on the Al-alloys and on the catalyst used in the oxygen electrode. The cell voltage could be increased by about 200 mV when replacing the Pt-catalysed oxygen electrode with a noble-metal-free (CoCAA/DCD) electrode. Chapman & Hall, 1996 Müller S. Paul Scherrer Institut, Electrochemistry Section, CH-5232, Villigen PSI, Switzerland aut Holzer F. Paul Scherrer Institut, Electrochemistry Section, CH-5232, Villigen PSI, Switzerland aut Desilvestro J. Paul Scherrer Institut, Electrochemistry Section, CH-5232, Villigen PSI, Switzerland aut Haas O. Paul Scherrer Institut, Electrochemistry Section, CH-5232, Villigen PSI, Switzerland aut Journal of Applied Electrochemistry Kluwer Academic Publishers 26/12(1996-12-01), 1217-1223 0021-891X 26:12<1217 1996 26 10800 https://doi.org/10.1007/BF00249923 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00249923 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Müller S. Paul Scherrer Institut, Electrochemistry Section, CH-5232, Villigen PSI, Switzerland aut NATIONALLICENCE 700 1- Holzer F. Paul Scherrer Institut, Electrochemistry Section, CH-5232, Villigen PSI, Switzerland aut NATIONALLICENCE 700 1- Desilvestro J. Paul Scherrer Institut, Electrochemistry Section, CH-5232, Villigen PSI, Switzerland aut NATIONALLICENCE 700 1- Haas O. Paul Scherrer Institut, Electrochemistry Section, CH-5232, Villigen PSI, Switzerland aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 26/12(1996-12-01), 1217-1223 0021-891X 26:12<1217 1996 26 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer