[sdiy] Lithium batteries & corrosion (Was: Retaining button state after power off?)

[Andre Majorel]

On 2014-02-03 20:03 -0500, Scott Nordlund wrote:

> I don't know of anything really corrosive that can leak out of
> a lithium battery. If you puncture one (which probably isn't a
> good idea for anything larger than a dead CR2032), the solvent
> (dimethoxyethane) evaporates almost immediately, leaving no
> liquid to speak of. The rest of it seems to be manganese
> dioxide, lithium perchlorate and propylene carbonate,
> according to Wikipedia. I don't think I've ever seen one leak.

Could humidity and the presence of a DC voltage conspire to
cause galvanic corrosion ? I don't know exactly *how* the
corrosion happens but I know that it does. :-/

-- 
André Majorel http://www.teaser.fr/~amajorel/