 Low cost conductive epoxy?
|
|
|
Sulaiman
|
|
Sat Sept 19 2009, 07:50PM
|
|
|
Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3141
|
I have soldered to all kinds of cells,
abrade the battery surface and you can solder with ordinary lead-tin solder.
Lithium batteries need very quick heat , too long and the seal will fail.
|
|
Back to top
|
|
|
IntraWinding
|
|
Registered Member #2261
Joined: Mon Aug 03 2009, 01:19AM
Location: London, UK
Posts: 581
|
Well I finally got back to this project.
I'd previously collected a small amount of very fine silver flakes by ball milling the result of a silver nitrate/ glycerol reaction. Mixing the silver flakes with minimal amounts of epoxy resin and using this to join lithium coin cells seems to have been a total success electrically. I found the internal resistance of the resulting batteries too low to measure, which is good enough for me  The cells needed further pure epoxy bonding to hold them together though as the very high proportion of silver to epoxy I used in the conductive joints took away most of the epoxies' adhesive properties.
I hope I find time to try some different silver precipitating reactions as the ball milling step makes this previous process impractical.
|
|
Back to top
|
|
Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob
|
|
Powered by e107 Forum System
|
