Your entire post is fiction. And not the good kind.

> Worldwide Li-ion battery production per year: 35GWh

This source: https://www.iea.org/data-and-statistics/charts/lithium-ion-b... tells me China alone manufactured 1200 GWh in 2022. You're at least an order of magnitude off.

> let's just say nobody would ever insure a grid scale Na-ion battery

Well they did.

https://energiesmedia.com/3-1-mwh-grid-battery-energized/

https://www.energy-storage.news/peak-energy-launches-first-g...