PSN-L Email List Message
Subject: Re: A interesting home brew battery
From: "Dale Hardy"  photon1@........... 
Date: Thu, 13 Nov 2008 09:07:24 +1100
Hi Meredith
your battery is an aluminium-hypochlorite battery, where the =
hypochlorite comes from the bleach. be aware you can get small amounts =
of chlorine from the carbon plates
for an overview of the electrochemistry see =
http://www.dtic.mil/cgi-bin/GetTRDoc?AD=3DADD019917&Location=3DU2&doc=3DG=
etTRDoc.pdf
Dale
  ----- Original Message -----=20
  From: meredith lamb=20
  To: psn-l@.................
  Sent: Thursday, November 13, 2008 7:47 AM
  Subject: A interesting home brew battery
  Hi all,
  I suppose its a little bit off of a seismometer topic; unless...you're =
a science experimenter or could=20
  even consider it a back up battery source for your seismometer =
amplifier....or just for pure fun=20
  confirmation or basic personal curiosity.
  http://seismometer.googlepages.com/makingahomebrewbattery
  It uses carbon graphite plate/s, un-coated aluminum plates, water, a =
little salt, and the key ingredient is...common
  liquid bleach (!).  The bleach more or less amplifies the current ~ =
10-13x; its a relatively strong oxidant.   My big
  shoebox size cell got up to ~ 1/8 ampere; which is considerably a lot =
more than other small web sourced home
  brew (1-2 mA ultra low current) batteries I've seen.  It could =
probably be more considered as a "reserve"
  type battery; unless one can do ~ frequent 2-3 day maintenance.  The =
web site above is like a log of experiments
  and comments over 4 days.  Its probably not really new so to =
speak....but....enjoy....
  Take care, Meredith
-------------------------------------------------------------------------=
-----
  No virus found in this incoming message.
  Checked by AVG - http://www.avg.com=20
  Version: 8.0.175 / Virus Database: 270.9.2/1783 - Release Date: =
11/12/2008 10:01 AM
Hi Meredith
your battery is an =
aluminium-hypochlorite battery,=20
where the hypochlorite comes from the bleach. be aware you can get small =
amounts=20
of chlorine from the carbon plates
Dale
 
  ----- Original Message ----- 
  
  
  Sent: Thursday, November 13, =
2008 7:47=20
  AM
  Subject: A interesting home =
brew=20
  battery
  
Hi all,
I suppose its a little bit off of a =
seismometer=20
  topic; unless...you're a science experimenter or could 
even =
consider it a=20
  back up battery source for your seismometer amplifier....or just for =
pure fun=20
  
confirmation or basic personal curiosity.
http:/=
/seismometer.googlepages.com/makingahomebrewbattery
It=20
  uses carbon graphite plate/s, un-coated aluminum plates, water, a =
little salt,=20
  and the key ingredient is...common
liquid bleach (!).  The =
bleach more=20
  or less amplifies the current ~ 10-13x; its a relatively strong =
oxidant.=20
    My big
shoebox size cell got up to ~ 1/8 ampere; which is=20
  considerably a lot more than other small web sourced home
brew (1-2 =
mA=20
  ultra low current) batteries I've seen.  It could probably be =
more=20
  considered as a "reserve"
type battery; unless one can do ~ =
frequent 2-3=20
  day maintenance.  The web site above is like a log of =
experiments
and=20
  comments over 4 days.  Its probably not really new so to=20
  speak....but....enjoy....
Take care, Meredith
  
  
  
No virus found in this incoming message.
Checked by AVG =
-=20
  http://www.avg.com 
Version: 8.0.175 / Virus Database: 270.9.2/1783 =
-=20
  Release Date: 11/12/2008 10:01 AM
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