INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Trying to prevent ZnCl2 to react with steel

Trying to prevent ZnCl2 to react with steel

(OP)
Working on a battery with a steel casing.
Steel casing is lined with graphite paint but the zncl2 inside the battery still reacts with the steel.
Does Ag react with ZnCl2 ? is there a way to coat Pure graphite on steel (enough to prevent the reaction with ZnCl2)
I have tried to use 0.02mm pure graphite flake foil whoch seems to work but will be cost prohibitive in mass production.

Thanks

RE: Trying to prevent ZnCl2 to react with steel

(OP)
Well , the idea is a new technology we are working on.
Other chemistry batteries do not have the issue of zncl2 , in our research we are bound by zncl2 for other reasons.
Graphite does protect the steel but trying apply it to the inside of a can is still a challenge.

RE: Trying to prevent ZnCl2 to react with steel

ZnCl2 battery chemistry appears to have been around for a long time: http://en.wikipedia.org/wiki/Zinc%E2%80%93carbon_b... It looks like there's supposed to be metallic zinc electrode that would protect an external steel casing?

TTFN
FAQ731-376: Eng-Tips.com Forum Policies

Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers


Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com: http://www.engineering.com/AskForum/aff/32.aspx

RE: Trying to prevent ZnCl2 to react with steel

(OP)
Again , I am looking to prevent the zncl2 reacting with steel by means of a conductive barrier coating , I think I have passed the basic battery chemistry lessons.
Zinc acts as an anode in a conventional zinc-carbon battery and does not use a steel can for conductivity.
I am looking for insight as to how best apply a pure graphite coating or alternative coating such as Ag to prevent short circuiting as a result of zncl2 reacting.

RE: Trying to prevent ZnCl2 to react with steel

It would be best to electroplate Silver, I think. But, you may have to deal with oxidation of the silver. Have you thought about chrome/nickel steel: http://www.smt.sandvik.com/en/materials-center/cor...

TTFN
FAQ731-376: Eng-Tips.com Forum Policies

Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers


Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com: http://www.engineering.com/AskForum/aff/32.aspx

RE: Trying to prevent ZnCl2 to react with steel

(OP)
Thank you IRstuff , this is a big help.
I wil post updates soon.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close