Electrochemical behaviour of α- and β-PbO2: Part II: lithium diffusion from non-aqueous electrolyte

✍ Scribed by N. Chelali; L. Zerroual; A. Hammouche; A. Kahoul; J. Guitton

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 319 KB
• Volume: 91
• Category: Article
• ISSN: 0167-2738
• DOI: 10.1016/s0167-2738(96)83032-3

✦ Synopsis

The cathodic behaviour of et-and [3-PbO 2 was studied in the presence of lithium ions using slow-scan voltametry. The [3-PbO 2 shows two peaks at 2.95 V and 2.45 V versus Li/Li +. However, in the case of et-PbO 2, similar peaks appear at 2.74 V and 2.35 V versus Li/Li +. The values of/~Li + calculated for both samples were 5 × 10 ~3 cm 2 S-i for ~-PbO 2 and 10-'4 cm 2 s ~ for [3-PbO 2. The tx phase seems to be a better lithium conductor than the [3 phase.