Not for standard US 120/240 split phase though..
You don't technically need 120/240 split phase if you are going to go off grid and disconnect the incoming supply. If you are willing to sacrifice the few 240 V circuits you can make the whole house 120 V and use other fuels for the high energy demands.
Oh absolutely. I didn't mean to imply otherwise - I should have stated that explicitly. It's just that the inverters linked to which could handle these battery packs were not for either 120V inverters nor 120/240V inverters.
Non of the major off grid or grid interactive inverter makers (Outback, Schnieder, Magnum, Victron) make inverters compatible with these packs. And as far as I know no one makes a compatible inverter for use with 120V or 120V/240V split phase power standard in the US.
I suspect, if Lithium battery packs (likely LiFePO4) become standard for home RE systems, the major inverter manufacturers will come out with inverters that accept more varied battery bank voltages. It's only the legacy of 12, 24, 48V lead acid battery banks that are responsible for their current offerings.