Cycle life prediction of lithium-ion battery electrodes and cells, utilizing current-voltage response measurements (2021 – 2023)

Agreement No: Nr. lzp-2020/1-0425

Type: Fundamental and applied research project of the Latvian Council of Science

Duration: 2021 - 2023

Project Leader: Dr. phys. Gints Kučinskis

Total budget: 300 000 EUR

Project description:

The aim of this research project is to develop a novel electrochemical testing routine for speedy characterization of lithium-ion battery electrodes and cells. This will be achieved through establishing a combination of current-voltage response measurements and development of fundamental understanding on ageing processes in the battery cell, analysed by XRD (in-situ and ex-situ), SEM, ICP-AES, EDS and XPS. We will develop a predictive model that will be verified on LFP and NCM-based liquid laboratory scale half-cells, full-cells and commercial cells, capable of estimating: (a) state of health, (b) rate capability and (c) cycle life based on a set of short electrochemical measurements, quicker than the conventional charge-discharge cycling techniques.

The results will enable: (a) speedier testing of electrode materials and recipes for electrode preparation and (b) improved measurement speed when assessing cycle life and state of health of commercial cells.