Publication in Nature Communication

Thu, 02 Jun 2022 16:01:42 +0200
RSS-News, Teaser

Data-driven capacity estimation of commercial lithium-ion batteries from voltage relaxation (Article was selected as one of Editors' Highlights in section Energy: https://www.nature.com/collections/dmmhtcypsc) Accurate capacity estimation is crucial for the reliable and safe operation of lithium-ion Batteries. Researchers from Tongji University and KIT in cooperation with other institutes have investigated the possibility to use relaxation voltage curves of commercial cells to estimate the capacity. This way no additional cycling information and no complete charge/discharge cycle is required to determine the residual capacity. Statistical features derived from relaxation curves were compared with three different models and then used to estimate residual capacity of the cells.