 Lead acid improvement
|
|
|
Conundrum
|
|
Sun Aug 12 2012, 08:49AM
|
|
|
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062
|
Hi all.
I noticed something interesting the other day.
One suggestion for improving lead acid batteries was to replace the thick plates with thin glass sheets and vacuum coat them with titanium in place of the lead.
The problem with this is the expense, and titanium tends to misbehave when immersed in acid forming stable oxides which resist further charging.
So it got me thinking.
What about making the plates hollow in the centre, with a central core of copper/tin alloy?
Then, form nanosized "pores" on the surface using laser ablation leading down into the core and fill the resulting structure with the lead using MOCVD and oxidise one side.
Alternate method:- form the glass plates first with nanoholes and a thin copper wire mesh inside, then electroplate copper and tin "through" the holes.
Once formed correctly, dissolve away the excess copper on the surface using a strong acid and electroplate on the lead.
The plan here is that each electrode is doing double duty and as long as the edges are correctly sealed using UV activated methylacrylate the cell(s) are essentially sealed for the lifetime of the battery.
Adding the acid could be done at a later stage via a fill tube with the recombinator inside.
Using glass would have the advantage of thermal stability, and light could be shone down inside to measure the charge state using colorimetry to ensure cell balance.
Also the resultant assembly could be used up to 280V so ideal for electric vehicles as long as the glue was correctly dried.
Comments?
-A
|
|
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
|
