Lead dioxides as cathodic materials for lithium polymer cells

✍ Scribed by N. Chelali; J. Guitton

• Book ID: 103899726
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 497 KB
• Volume: 45
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(93)87010-z

✦ Synopsis

The cathodic behaviour of both varieties a-and /3-Pb02 in the presence of lithium ion was studied. The chemical lithiation was obtained by reaction with n-butyllithium. The chromatographic analysis of the chemical products revealed both octane and butane. The presence of butane as coproduct could be due to the hydrogen substitution reaction with n-butyllithium. The electrochemical behaviour was studied with deposited PbOz cathodes on stainless steel with a LiClO,/polyethylene oxide electrolyte. By using slow scan voltammetry, the cathodic reduction process results in the peak reduction at potential 2.4 V versus Li/ Li+ for a-Pb02 and 2.74 V versus Li/Li+ for &PbOz. The present work suggests that cathodic reduction is lithium intercalation in surface-layered PbO, molecules.