Good question, thanks. I’ve now been and done some further reading.
It does look like adding some compression could increase the number of available cycles. But I’m not sure how tangible that will be. If can increase the life by 1.6X which sounds a lot, but this is based on higher C rates. And whilst the system is all geared around producing 270A without an issue, I’m not sure that this will happen very often (I’ll have to try and think this through).
So I will look into it, but the cost/benefit of replacing the cells after 10 years rather than 15 years may not be there. Especially since a lot of what I was reading looked at adding spring systems, these soon add up in price.
As far as I have read there any no short term risks with having little/no compression, so this is a gradual thing, like changing the oil on your car after 10000 miles, rather than 7000 miles.