Aging data for commercial sodium-ion batteries, including Check-ups and degradation mode analysis.

This repository provides aging data for cycle and calndar aging of sodium ion batteries in the 18650 format. The data includes initial Check-Ups including the electrochemical impedance spectroscopy (EIS) measurments aswell as the continuous check-ups during calendar and cycle aging of the cells. In addition to this, degradation mode analysis was applied to the aging data to determin the impact of operation and storage to the cells. Herein the loss of active material on anode and cathode side aswell as loss of cyclable inventory material is calculated.