✦ LIBER ✦

Study of the rechargeable manganese dioxide electrode

✍ Scribed by B. Sajdl; K. Micka; P. Krtil

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 794 KB
Volume: 40
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(94)e0163-t

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✦ Synopsis

Manganese dioxide electrode doped with Bi or Pb compounds and containing a conductive component can be reversibly cycled with exploitation of 5040% of the theoretical two-electron capacity; however, after 10 or more cycles there is a negative effect of structural changes consisting in dissolution of Mn oxides, blocking of pores, and impairment of the pore electrolyte conductance. The electrode porosity can be increased by adding a powdered, little soluble compound as pore former, which is gradually leached out, leaving pores.

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