Corrosion in Supercapacitors- An Overview

Abstract

Corrosion of metals and carbon in its numerous forms and of further functional materials like metal ox­ides used as active masses and auxiliary materials in supercapacitors, contributes to both ageing and degradation of supercapacitors of the various established types. Examples, symptoms and mechanisms of the degradation on the material/electrode and the device level are presented and discussed. Remedies and suggestions are indicated to avoid this unwanted contribution to device ageing and failure.