Optimizing the parameters of cell expansion in alkaline manganese dioxide button cells

✍ Scribed by K. Takeda

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 870 KB
• Volume: 32
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(90)80029-d

✦ Synopsis

The optimization of the parameters of cell expansion during discharge in alkaline manganese dioxide button cells is studied. The cell expansion after discharge and overdischarge is reduced by optimizing technological parameters, such as the type of MnOz, the amount and the size of graphite, the pressure for cathode pellets, and the amount of electrolyte in anode and cathode mixes. Other parameters, like the amount of anode and cathode mixes, concentration of electrolyte, the amount of binder in the cathode mix, the types of absorbent and separator are independent of the cell expansion. From studies of the morphology of the cathode mix after discharge, vacancy and agglomeration appeared in a more significant level than the cathode mix before discharge.