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 AMHi Meredithyour 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 platesfor an overview of the electrochemistry = see http://www.dtic.mil/cgi-bin/GetTRDoc?AD=3DADD0= 19917&Location=3DU2&doc=3DGetTRDoc.pdfDale----- Original Message -----From:=20 meredith lambSent: Thursday, November 13, = 2008 7:47=20 AMSubject: A interesting home = brew=20 batteryHi 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