Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations GregLocock on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Custom lithium polymer shapes 2

Status
Not open for further replies.

mveric

Computer
Nov 10, 2009
4
We have an application that requires a custom non-rectangular lithium polymer battery shape.
Are there any battery companies that specialize in custom shapes?
 
Replies continue below

Recommended for you

I would expect most companies that MANUFACTURE them to revel in a custom shape. This allows them to lock you in. However you better be wanting more than a few pieces.

Keith Cress
kcress -
 
I think most li poly mfrs will make non-standard size rectangular packs, but that's not exactly what I need.

The application is a mass marketed consumer electronics product, so the volumes could be very high, obviously depending on the success of the product.

What I'd like is to have a little lifesaver shaped battery about 60 mAh.
 
I came across this company back in '08 and contacted them but my project was put on hold and I didn't follow through. I know that they do provide samples at NRE costs and they'll give you a rough estimate based on a drawing you send.
 
Free Form Battery looks good. Thanks! They apparently use "Lithylene" technology.

Their website is down but Google displays an old version of the website:

"Free Form Battery solutions are made possible by Lithylene, a technology and trademark owned by Koninklijke Philips Electronics NV.

Lithylene technology enables precision battery construction using rivet assembly. This is a powerful technology that can be used to make free form factor batteries without sacrificing performance. Batteries produced through rivet assembly can be made to follow the contours of the host device product and be placed along the edges of the device. Device designers enthusiastically adopt Free Form Battery solutions when space and shape are of paramount consideration in device design.

Rivet assembly leverages the conventional idea of securing layered materials together using rivets. In battery assembly, electrodes (cathode and anode) are placed on top of each other with separators in between (Fig. 1). Each of these electrodes has already been punched with small holes (Fig. 2, Fig. 3). Holes on the separator are made after alignment with hot needles."
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor