Yes, sounds right. Quoting from the paper cited above "Thus, a device can be readily made by
sandwiching an ion porous separator [Celgard
3501 (Celgard, Charlotte, NC)] between two
identical LSG electrodes."
But the gel seperator they used was the standard industrial seperator gel for sCaps...there was a video on this, but it's too late tonight, i'll look for it tomorrow.