The charging accessory brand Arun has a new travel product that can charge both mobile devices and full notebooks. This "power station" has variants with 22000mAh or 30000mAh capacities, both of which has a full AC outlet, as well as USB type A and C ports. The latter can charge a mobile device at up to 45 watts (W), whereas the former can deliver up to 100W.
https://www.notebookcheck.net/The-new-Arun-power-station-has-both-USB-and-AC-outputs-to-charge-a-laptop-at-up-to-100W.434483.0.html
100W for an AC outlet hardly makes sense, USB-C w/ PD itself delivers 100W, even slightly higher with proprietary specs as another commenter once pointed out. Beyond that it doesn't board planes. I see a few niche cases like supporting a medium sized soundbar that doesn't have its own battery for outdoor use...within driving distance. For people with sub-100W notebooks that still don't charge with the C port...I wonder if the price would be reasonable for them.