I wish batteries and the energy pumped into them were environmentally friendly and they lasted a lifetime and didnt rely on countries like China to do it all.

*if* is the operative word here. Energy is a ladder, places that can't reliably produce their own energy supply should use the most economical fuel supply, and its unlikely this could be better than an LNG freighter. When economic development reaches the point that those places want a longer term investment in a source of energy that's cheaper in the long term then they can commit to the higher upfront cost. The idea of a tanker carrying batteries though, I can't imagine how expensive that will be, it seems ripe for a situation where the poor are completely cut off from access and electricity is a luxury only the government and elite can afford.

Batteries store energy to be used at another time or another place. Nat gas, oil, and nuclear are the densest batteries humanity has discovered. Traditional electric batteries will never achieve this energy density, IMO. And certainly aren't there today. Tanker ships running on electric batteries is a step backward with today's tech, and probably will be even on tomorrow's tech. The hunt for energy dense batteries starts and ends with combustibles and nuclear.