Performance and discharge characteristics of doped β-MnO2 in ZnCl2 electrolytes

✍ Scribed by Buqui D. Desai; Fernando S. Lobo; V.N. Kamat Dalal

• Book ID: 103899948
• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 995 KB
• Volume: 51
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(94)80103-7

✦ Synopsis

The electrochemical performance of a number of doped MnOz samples was evaluated in the following electrolytes: (i) LeclanchC; (ii) 25% &Cl,, and (iii) 25% ZnCI, with additives i.e., 2% LiCl and 1% NH,SO$I. Some of the molybdenum-doped MnOz samples perform well as cathode materials. The discharge duration appears to be better than that of the International Common Sample I.C-8 (chemical MnO,) which was used as reference sample. Distinct improvement in the discharge duration is observed when both the additives are added simultaneously. Attempts were made to correlate the electrochemical reactivity of MnOz and the presence of cation vacancies, but no clear-cut conclusions could be drawn. The internal correlation of Ruetschi's parameters was satisfactory.