Login | Register
The Engineer's Place for News and Discussion®

Previous in Forum: Details of Fiber Glass Reinforced Polyamide Required   Next in Forum: Calibration
Close

Comments Format:






Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







11 comments
Guru
Hobbies - Target Shooting - New Member Hobbies - Fishing - New Member

Join Date: Jan 2006
Posts: 1035
Good Answers: 12

Making Alkaline Batteries Out of Old Lead Acid Batteries

02/06/2008 11:22 PM

Freeenergynews.com just published a short article from Yahoo Tech Groups about battery reconditioning using alum in water. Does anyone have any knowledge of this process. The writer says it produces more electricity and the batteries last longer. He says a company in China is using the process also. He says alum is cheap, and that there is no corrosion. One of you engineers could be a big help to him, he sounds to be more of a handyman. A lot of poor folks, could sure benefit from such a process, even if it is not as good as presented.

Register to Reply
Pathfinder Tags: alum batteries cars electricity recharging recycling
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
Guru

Join Date: Jun 2007
Posts: 620
Good Answers: 24
#1

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/08/2008 9:19 AM

chucklechuckle, har - har... "He says"... they are making corrosion cells (that's what lead-acid batteries, carbon-zinc batteries, alkaline batteries, etc ARE!) ... but exhibiting NO corrosion, eh...?!

Of course, to be PRECISE, an individual anode-cathode (with electrolyte) combination is a "Cell"... and, a "Battery" is a combination of 2 or more such cells producing current in unison. ... "OK", enuf lafter. Sure, there are ways to design such animals so that they can be regenerated (or recharged) by pumping electrons back INTO the unit following a period of discharge, which in effect reverses the corrosion process that released the electrons (current flow) in the first place. Hybrid car designers and multitudes of other interested businesses are racing in the search for that holy grail of batteries, that will outperform all others. This guy (in what you read) claims to have found a material that consists of nothing but 100% free / unlimited / self-regenerating bottomless-pit of electrons. Aluminum...? [don't think so...] Check-out other CR4 discussions on the topic, such as:

http://cr4.globalspec.com/thread/12947#newcomments and others...

I, for one, am not even *tempted* to seek-out the article which you reference (no link provided, tsk-tsk)... just seeing the address: "Freeenergynews..." was enough to provide my morning chuckle!

Register to Reply
Guru
Hobbies - Target Shooting - New Member Hobbies - Fishing - New Member

Join Date: Jan 2006
Posts: 1035
Good Answers: 12
#2
In reply to #1

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/08/2008 9:33 AM

The referenced electrolyte was alum in water ,not aluminum.

Freeenergynews.com is a truly great site, although I can understand how you might be put off by the name. Most of the articles relate to genuine technologies that are in use now. The other stuff is over my head, and some of it is a joke. Please take a look at it though.

I found that Edison initially used alkaline batteries. Jaylenosgarage.com has a video of an antique electric car that Jay owns. It even came with its own charging apparatus. I believe it still uses the original batteries!

Thanks for the reply.

Register to Reply
Guru
United States - US - Statue of Liberty - New Member Hobbies - Fishing - New Member

Join Date: Nov 2007
Location: Gone to Alabama with my banjo on my knee...
Posts: 5754
Good Answers: 20
#3
In reply to #2

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/08/2008 9:56 AM

"I believe it still uses the original batteries!"

Not so hard to believe, so does the one pictured below, owned/driven by a friend of mine. It's a 1916 Rausch & Lang.

__________________
Veni, vidi, video - I came, I saw, I got it on film.
Register to Reply
Guru
Hobbies - Target Shooting - New Member Hobbies - Fishing - New Member

Join Date: Jan 2006
Posts: 1035
Good Answers: 12
#4
In reply to #3

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/08/2008 11:17 AM

Pretty great! In looking at the time line of automotive technology, I can see us using some very neat electric cars in the near future.

Thanks,

Ron

Register to Reply
Guru

Join Date: Jun 2007
Posts: 620
Good Answers: 24
#5
In reply to #2

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/08/2008 12:12 PM

"OOoooppps!"... my 'bad'. Rarely do I jump to conclusions ~ this was certainly such a doosey! Prematurity-aside, there are countless combinations from which to effect a current flow from corrosion-cell design. The 'trick' is to achieve economic viability, along with safety and environmental friendliness. The original post here stated "no corrosion", NEGLECTING to mention that the article SPECIFIES (strictly) "no corrosion on the terminals". Therin laid the root of initial disbelief.

As a matter-of-fact, I have a 12V lawn-tractor battery sitting in my garage, awaiting disposal. I highly suspect that after appropriate cleaning, neutralizing and other such checks & preparations, the addition of the (sodium aluminum silicate) electrolyte will, in fact, produce a potential across the cells ... and, it will be interesting to perform a load test to see how much (if any) additional life can be extracted from an otherwise "1/2 dead" battery.

Being that it's Friday ... I still enjoyed the morning chuckle...

Register to Reply
Guru
Hobbies - Target Shooting - New Member Hobbies - Fishing - New Member

Join Date: Jan 2006
Posts: 1035
Good Answers: 12
#6
In reply to #5

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/08/2008 5:58 PM

I did not notice the difference about the lack of corrosion being on the terminals, but doesn't it stand to reason that if there is no corrosion on the terminals, that there is less corrosion internally? Otherwise why are the batteries still good after 90+ years. I am a novice at this stuff. Not trying to compete with anybody. Maybe these batteries have been reconditioned many times, but I have not seen that mentioned.

Register to Reply
2
Guru

Join Date: Jun 2007
Posts: 620
Good Answers: 24
#7
In reply to #6

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/08/2008 7:25 PM

Regardless of which way we define the ampere, it equates to 6.25 x 1018 electrons flowing past a given point over a period of one second. These electrons have to come from SOMEWHERE... and, in any corrosion cell battery, those electrons are the result of REDOX reactions taking place within the cell: Reduction reactions1 at the cathode, and Oxidation reactions2 at the anode. [Both have to happen simultaneously, or NO current flows, because no corrosion is taking place.] It matters not whether the electrolyte is acidic or alkaline ... so long as there are plenty of positive ions within it to "piggy-back" the electrons through it.

Older lead-acid batteries suffered severe corrosion on their terminals due in large part to the corrosivity of the escaping gas during operation... sealing them up in recent years has all but eliminated that problem. Admittedly, it is possible that the off-gassing during operation of the alkaline-version (lead battery) exhibits less corrosivity itself. BUT... that won't in any way-shape-or-form detract from the quantity of corrosion reactions taking place WITHIN the cell(s) in order to effect a given flow of current.

It's Friday; "tractor battery, here I come, camera-and-meter-in-hand!"

1 & 2 → Lest we forget: Oxidation has nothing to do with oxygen, here... oxidation reactions involve the losing, or 'giving-up' of an electron, whilest reduction reactions involve the gaining, or picking-up of an electron.

Register to Reply Good Answer (Score 2)
Guru
Hobbies - Target Shooting - New Member Hobbies - Fishing - New Member

Join Date: Jan 2006
Posts: 1035
Good Answers: 12
#8
In reply to #7

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/09/2008 7:17 AM

Thanks for the education. I remember using soda pop to clean the oxidation off of batteries, or a baking soda solution. Looking forward to your experiment.

Register to Reply
Guru

Join Date: Jun 2007
Posts: 620
Good Answers: 24
#9

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/12/2008 9:20 AM

Follow-up to my previous post ~ on my way out (shopping), I visited a neighbor, and acquired 2 additional "test-beds". I now have 3 contenders for acid-to-alkaline conversions.

Upon scouring the Wal-Mart shelves, I did, in fact, find the Alum ... However, it was not exactly (as the article had stated) "SOooo Cheap!". Wal-Mart only had little 1oz jars (in the spices section) for $2.38+tax per ounce! I wasn't ready to spend $30 on this quite-uncertain experiment ... I'm sure that with a little patience I will find a bulk-rate quantity of the powder, and then procede.

"Until then"...

Register to Reply
Guru
United States - US - Statue of Liberty - New Member Hobbies - Fishing - New Member

Join Date: Nov 2007
Location: Gone to Alabama with my banjo on my knee...
Posts: 5754
Good Answers: 20
#10
In reply to #9

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

02/12/2008 6:24 PM

Amazon.com has HUMCO alum powder at 12 oz. for $19.08 which works out a bunch cheaper...

__________________
Veni, vidi, video - I came, I saw, I got it on film.
Register to Reply
Guru
Hobbies - Target Shooting - New Member Hobbies - Fishing - New Member

Join Date: Jan 2006
Posts: 1035
Good Answers: 12
#11
In reply to #9

Re: Making Alkaline Batteries Out of Old Lead Acid Batteries

04/29/2008 11:32 AM

Did you ever try the experiment? Would love to know the results.

All the best,

Ron

Register to Reply
Register to Reply 11 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Comments rated to be Good Answers:

These comments received enough positive ratings to make them "good answers".
Copy to Clipboard

Users who posted comments:

EnviroMan (2); ndt-tom (4); ronwagn (5)

Previous in Forum: Details of Fiber Glass Reinforced Polyamide Required   Next in Forum: Calibration
You might be interested in: Industrial Batteries, Rechargeable (Secondary) Batteries, Lithium Batteries