Akaline cell with improved cathode

Year	Description
1999	Invention patented by Enoch I. Wang and Francis Wang on May 2nd, 1999. Abstract: A process is described whereby commercial manganese dioxide, for example, electrolytic manganese dioxide (EMD), is treated with ozone before it is utilized as cathode active material in an alkaline cell. The pretreatment of the manganese dioxide is accomplished by contacting manganese dioxide with ozone gas. Alternatively, the manganese dioxide may be treated with ozone while the cathode comprising said manganese dioxide is already in the cell casing. The treatment of the manganese dioxide improves the cell's open circuit voltage (OCV) and results in an increase in service life of the cell, particularly under high power application.
Source: selected by the editor from original sources.

Invention: Akaline cell with improved cathode