Li, J.-F.J.-F.LiLin, Y.-S.Y.-S.LinLin, C.-H.C.-H.LinChen, K.-C.K.-C.ChenKUO-CHING CHEN2020-04-282020-04-282017https://scholars.lib.ntu.edu.tw/handle/123456789/486668Existing methods for predicting the capacity fade of lithium ion batteries (LIBs) are typically limited to the description of cells under fixed charge/discharge (C/D) cycling conditions. The prediction requires a large amount of experimental data for various cycling environments to construct empirical equations or to obtain parameters in physical-based models. Based on the porous electrode theory, a semi-empirical model with three constant parameters is developed here. It is found that fading data at various temperatures collapse into a single curve on a newly proposed plot. This finding enables us to use a much smaller amount of cycle-life data to determine the values of these parameters, which sufficiently characterize the fading response under a broad range of cycling conditions. The prediction yielded from the model is confirmed by several scenarios with varying cycling conditions, such as temperature, depth of discharge, and C/D rate. A further prediction shows that different average C/D rates, which give rise to different cell-temperature histories, have a strong influence on the capacity degradation of an LIB. By introducing the average C/D rate, we analyze the capacity loss after 1500 cycles with the use of two types of charging protocols, from which two operational treatments are suggested. © 2017 The Electrochemical Society. All rights reserved.[SDGs]SDG7Battery management systems; Charging (batteries); Electric batteries; Electrodes; Forecasting; Secondary batteries; Capacity degradation; Constant parameters; Depth of discharges; Empirical equations; Physical-based models; Porous electrode theory; Semi-empirical modeling; Three-parameter models; Lithium-ion batteriesjournal article10.1149/2.1801712jes2-s2.0-85032681740https://www.scopus.com/inward/record.uri?eid=2-s2.0-85032681740&doi=10.1149%2f2.1801712jes&partnerID=40&md5=b82fb75fb41663b1c3a2a2b5d6b7e4fd