Lessons from CellVision: Battery Materials to Final Cell Cost and Today’s Sodium Ion Batteries

Abstract

CellVision is a material to cell performance and cost model that was built in excel to test the theory that cheaper sodium raw materials result in cheaper sodium-ion batteries compared to today’s lithium-ion batteries. CellVision version 2.3 is now available to the public and the present work covers the methodology and assumptions that went into building the model. The most important variables that influence upfront cell costs are discussed, and commercially relevant sodium-ion battery materials are reviewed for their potential against lithium-ion incumbents.