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
for an overview of the electrochemistry = see http://www.dtic.mil/cgi-bin/GetTRDoc?AD=3DADD0= 19917&Location=3DU2&doc=3DGetTRDoc.pdf
Dale
 
----- Original Message -----
From:=20 meredith lamb
To: psn-l@..............
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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