Toshiba SCIB 20Ah - ballooning

[jcamp34]

Have some Toshiba 20Ah SCIB arriving soon for an initial play with them with little hard information. Seen video of them being glued together and put in a box


With the LTO pouch cells I have they need ~15psi pressure (flat side to flat side) to avoid ballooning and presumably the same with these.

The question is does the case take care of the ballooning forces. Anyone have any experience which will reduce my learning curve?

 

[amberwolf]

If it helps in information searches, the term most commonly used for this is "puffing", rather than "ballooning".

While I don't have the specific info you need, there are some threads here about the SCIB cells; they may have the info you need (I have not read them, at least not in a long while).

These all contain the word SCIB in them
https://endless-sphere.com/forums/search.php?keywords=SCIB&terms=all&author=&sc=1&sf=all&sr=topics&sk=t&sd=d&st=0&ch=300&t=0&submit=Search
but you can refine the search further, or look at the topic titles to see if they apply.

 

[jcamp34]

Searches with puffing come up with nothing for the Toshiba SCIB on this and other sources.

The only thing I have seen was a paper which included material on pressure with LTO pouches, reference now lost and I can't refind it and while it doesn't mention puffing or ballooning the spec's on the pouches used in OP of this https://endless-sphere.com/forums/viewtopic.php?f=14&t=91976&hilit=lto+commuter#p1341369. These plus some experiments suggested ~15 psi - they were OK charging at 0.1C unconstrained (for a few cycles anyway) not at 5C

The hope is someone has had experience with them