Some problems of the cycleability of lithium electrodes

✍ Scribed by K. Wiesener; U. Eckoldt; D. Rahner

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 411 KB
• Volume: 26
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(89)80179-x

✦ Synopsis

Lithium electrode cycleability is influenced by electrochemical and chemical processes occurring during the cathodic deposition and anodic dissolution of lithium. These processes involve the reduction or formation of surface layers, the reduction of the electrolyte, and chemical side reactions.

Dynamic alterations of the protective surface layer properties occur during polarization, and repetitive destruction and formation process takes place. Independently of the electrolyte solution used, during cathodic polarization a sharp decrease in the measured resistance, R, was observed. Distinct differences in the properties of the lithium surface are also obvious during anodic polarization.

Cycling on inert and alloy-forming supports shows remarkable efficiency differences due to the decreased side reactions when using an alloy support.