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Specialty Chemistry Forums => Citizen Chemist => Topic started by: Viper3k on April 24, 2005, 03:55:59 AM

Title: Alkaline Batteries
Post by: Viper3k on April 24, 2005, 03:55:59 AM

Hey all

I was wondering what the black powder in alkaline batteries is. Anyone know?

thanks

Title: Re:Alkaline Batteries
Post by: Borek on April 24, 2005, 05:05:02 AM

MnO2. Google for Leclanche cell.

Title: Re:Alkaline Batteries
Post by: Viper3k on April 24, 2005, 07:57:53 AM

Thanks for that :)

Title: Re:Alkaline Batteries
Post by: billnotgatez on April 24, 2005, 10:24:12 AM

I think that it depends on the kind of battery
Could be a powder of manganese dioxide or powder of zinc depending on type and location in structure

This site has two pages of interest

http://micro.magnet.fsu.edu/electromag/electricity/batteries/index.html


Alkaline-Manganese Battery
http://micro.magnet.fsu.edu/electromag/electricity/batteries/alkaline.html

Zinc-Carbon Batteries
http://micro.magnet.fsu.edu/electromag/electricity/batteries/zinccarbon.html