I'm not sure what you're trying to say? The replaceable battery is either thicker, or it isn't. There's not much to accommodate.
This is already a thing for some [dedicated] cameras like the Canon EOS series.
A thicker battery would need a new back built with a hump or standoffs across the whole back to increase the overall thickness to match the new larger battery thickness...
A thicker battery would need a new back built with a hump or standoffs across the whole back to increase the overall thickness to match the new larger battery thickness...