2022
DOI: 10.1016/j.est.2021.103533
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What drives capacity degradation in utility-scale battery energy storage systems? The impact of operating strategy and temperature in different grid applications

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Cited by 22 publications
(7 citation statements)
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“…342,344,[393][394][395] The main degradation mechanism for LIBs is the growth the solid electrolyte interface (SEI) on the negative electrode, which results in the increase in the negode's electric resistance and in the decrease of the amount of cyclable Li + ions. 396,397 The SEI thickness grows as a square root of time in the charged state, as expected for a process limited by the diffusion of Li + through the SEI. This degradation pathway gets faster at higher temperatures, when storing at higher state-of-charge, and at higher charging rates.…”
Section: Vanadium Rfbs-the Technology Frontrunnersmentioning
confidence: 79%
“…342,344,[393][394][395] The main degradation mechanism for LIBs is the growth the solid electrolyte interface (SEI) on the negative electrode, which results in the increase in the negode's electric resistance and in the decrease of the amount of cyclable Li + ions. 396,397 The SEI thickness grows as a square root of time in the charged state, as expected for a process limited by the diffusion of Li + through the SEI. This degradation pathway gets faster at higher temperatures, when storing at higher state-of-charge, and at higher charging rates.…”
Section: Vanadium Rfbs-the Technology Frontrunnersmentioning
confidence: 79%
“…Determining the power and energy capacity of ESSs without considering battery degradation can lead to inflated revenues and drastically reduce reliability. The use of accurate models that take into account battery aging factors show that the predicted degradation rate is several times [70,108] higher than that which is stated by the manufacturers in stationary systems of use, such as RES-based power systems, EV2G. Aging prediction models allow one to develop a strategy for operating batteries in such applications, thus reducing the strain on them through a variety of approaches.…”
Section: Discussionmentioning
confidence: 99%
“…In order to test the efficacy of the marginal aging costs of the BESS in the optimization model, different operating strategies were used under different seasons, taking into account the characteristics of traffic, traffic congestion, and ambient temperature, and those accounting for the marginal aging costs. In [70], the degradation process is modeled by a semi-empirical method including thermal stress factors and charge and discharge rates. The study analyzes a 7.2 MW/7.12 MWh electrical energy storage system operating in the frequency regulation market in Germany.…”
Section: Consideration Of Stress Factors In Modeling the Battery Degr...mentioning
confidence: 99%
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