Study of the electro-oxidation of CoO and Co(OH)2 at 90°C in alkaline medium
作者： Frédéric Tronel , Liliane Guerlou-Demourgues , Lionel Goubault , Patrick Bernard , Claude Delmas
DOI: 10.1016/J.JPOWSOUR.2008.01.005
关键词:
摘要: Cobalt is usually post-added as CoO or Co(OH)2 to nickel hydroxide at the positive electrode (nickel oxide electrode) of alkaline batteries, form a conductive network. In present work, we focus on transformation and phases when oxidized 90 °C. The Co3O4 phase majority product such reaction, with CoOOH secondary product. It shown that results from reaction phase, formed by electrochemical oxidation Co(OH)2, Co2+ species in electrolyte, which made possible temperature. This process requires global migration cobalt towards current collector.
harvard.edu
archives-ouvertes.fr
elsevier.com
sci-hub.se 参考文章(13)
A. H. Zimmerman, R. Seaver, Cobalt Segregation in Nickel Electrodes during Nickel Hydrogen Cell Storage Journal of The Electrochemical Society. ,vol. 137, pp. 2662- 2667 ,(1990) , 10.1149/1.2087006
S. Aravamuthan, C.V. Annamma, N.R. Pillai, M.J. Nair, Studies on the storage of electrochemically impregnated nickel/cadmium cells Journal of Power Sources. ,vol. 50, pp. 81- 87 ,(1994) , 10.1016/0378-7753(93)01885-L
M Butel, L Gautier, C Delmas, None, Cobalt oxyhydroxides obtained by 'chimie douce' reactions: structure and electronic conductivity properties Solid State Ionics. ,vol. 122, pp. 271- 284 ,(1999) , 10.1016/S0167-2738(99)00076-4
M. Oshitani, H. Yufu, K. Takashima, S. Tsuji, Y. Matsumaru, Development of a Pasted Nickel Electrode with High Active Material Utilization Journal of The Electrochemical Society. ,vol. 136, pp. 1590- 1593 ,(1989) , 10.1149/1.2096974
V. Pralong, A. Delahaye-Vidal, B. Beaudoin, B. Gérand, J-M. Tarascon, Oxidation mechanism of cobalt hydroxide to cobalt oxyhydroxide Journal of Materials Chemistry. ,vol. 9, pp. 955- 960 ,(1999) , 10.1039/A807689H
P. Benson, G.W.D. Briggs, W.F.K. Wynne-Jones, The cobalt hydroxide electrode—II. Electrochemical behaviour☆ Electrochimica Acta. ,vol. 9, pp. 281- 288 ,(1964) , 10.1016/0013-4686(64)80017-7
Liliane Demourgues‐Guerlou, Claude Delmas, None, Effect of Iron on the Electrochemical Properties of the Nickel Hydroxide Electrode Journal of The Electrochemical Society. ,vol. 141, pp. 713- 717 ,(1994) , 10.1149/1.2054797
Frédéric Tronel, Liliane Guerlou-Demourgues, Michel Ménétrier, Laurence Croguennec, Lionel Goubault, Patrick Bernard, Claude Delmas, None, New Spinel Cobalt Oxides, Potential Conductive Additives for the Positive Electrode of Ni−MH Batteries Chemistry of Materials. ,vol. 18, pp. 5840- 5851 ,(2006) , 10.1021/CM060175T
Angèle Cressent, Valérie Pralong, Albane Audemer, Jean-Bernard Leriche, Agnès Delahaye-Vidal, Jean-Marie Tarascon, Electrochemical performance comparison between β-type mixed nickel cobalt hydroxides prepared by various synthesis routes Solid State Sciences. ,vol. 3, pp. 65- 80 ,(2001) , 10.1016/S1293-2558(00)01125-0
P Oliva, J Leonardi, JF Laurent, C Delmas, JJ Braconnier, M Figlarz, F Fievet, A De Guibert, None, Review of the structure and the electrochemistry of nickel hydroxides and oxy-hydroxides Journal of Power Sources. ,vol. 8, pp. 229- 255 ,(1982) , 10.1016/0378-7753(82)80057-8