Natural Science Forum / Chemistry / Electrochemistry / July 2009

In those batteries in the cmos circuits in computers. You know those big
round ones?
Brian

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Observing proper safety (ie, not using it inside the home), is there any
reason using a car-sized 12v gel-cell (eg, Optima*) would be a Bad Idea (tm)?
Form-factor is not an issue; the battery would be outboard, of course.
Charging time would be much longer considering the modest ...

What is the likely shelf life of a SLA gel-cell? Could it last 8 years? 10?
Thanks.

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Hydrogen oxidation to hydronium ion is done with a platinum catalyst.
Is platinum necessary or does it just make it faster?  Does water and
oxygen require a catalyst to be reduced to hydroxide ion or
can it be done with a graphite electrode?

Here's a question I've never seen mentioned, much less answered, about the
lead-acid cell:  Why don't we get lead hydrogen sulfate instead of lead
sulfate crystals after a partial discharge?
Has anybody tried phosphoric acid instead of sulfuric as the electrolyte?