Modelling the cycling degradation of Li-ion batteries: Chemistry influenced stress factors

Olmos, Josu; Saez-de-Ibarra, Andoni; Larrea, Xabier; Nieva, Txomin; Aizpuru, Iosu

doi:10.1016/j.est.2021.102765

Cited by 45 publications

(30 citation statements)

References 43 publications

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“…The fourth driver, SOC, is often considered for calendar aging, but it affects cycle aging too. The optimal average SOC for battery cycling is 50%: cycles passing symmetrically through SOC=50% cause the least damage [15], [20].…”

Section: B Cycle Degradation Mechanismsmentioning

confidence: 99%

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Battery degradation: impact on economic dispatch

Schade¹,

Egging-Bratseth²

2022

Preprint

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<p>Batteries are crucial to manage the rising share of intermittent energy sources and variability in demand. ost techno-economic models in the literature oversimplify battery degradation representation. Accounting properly for battery degradation allows for better cost tradeoffs and optimal battery usage, especially in dynamic settings. We propose a highly accurate and scalable formulation for battery degradation that considers the combined impact of cycle depth and state of charge on calendar and cycle aging. We test the consequences of battery degradation in a stylized price arbitrage model on battery operation and solution times. When ignoring battery degradation, ex-post calculations reveal hidden degradation costs that exceed revenues and hence turn seemingly profitable trades into losing trades. Considering battery degradation leads to smaller cycle depths and lower average states of charge. Overall, we show that a much-improved representation of battery degradation is possible at modest computational cost.</p>

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Section: B Cycle Degradation Mechanismsmentioning

confidence: 99%

“…We desire a degradation model usable in economic dispatch optimization that considers factors affected by operational decisions SOC, CD, and C-rate. Hence, we formulate degradation based on measurements of a specific battery cell [20], [25]. Total battery degradation equals the sum of calendar and cycle aging [7], [26]:…”

Section: Battery Degradationmentioning

confidence: 99%

Battery degradation: impact on economic dispatch

Schade¹,

Egging-Bratseth²

2022

Preprint

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“…Depending on the deployed anode and cathode material, different LIB technologies exist [5]. In the current study the following chemistries are considered (cathode/anode): Lithium Iron Phosphate/Graphite (LFP/G), Lithium Nickel Manganese Cobalt Oxide/Graphite (NMC/G) and Lithium NMC/Titanate (NMC/LTO).…”

Section: A Lib Technologiesmentioning

confidence: 99%

“…On the one hand, the LIB life estimation is obtained by an empirical degradation model developed by the authors in [5]. The model considers the differences between LIB technologies, and parametrizes the effect of the temperature (T ), depth-of-discharge (DOD), charge and discharge currents (C ch and C dch ) and middle SOC (mSOC), as Eq.…”

Section: Economic Evaluation (Lcc Model)mentioning

confidence: 99%

“…As this is one of its main tasks, the relevance of the Energy Management Strategy (EMS) can not be dismissed. In addition, the techno-economical influence of the selected Energy Storage System (ESS) technology has also been reported to be relevant [5]. Therefore, it is concluded that when trying to reduce the cost of a hybrid railway vehicle, the effects of the EMS and ESS technology cannot be ignored.…”

Section: Introductionmentioning

confidence: 99%

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In-depth Life Cycle Cost Analysis of a Hydrogen Electric Multiple Unit

Olmos

Saez-de-Ibarra

Gaztañaga

et al. 2021

2021 IEEE Vehicle Power and Propulsion Conference (VPPC)

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This paper analyses the life cycle costs of railway projects involving hydrogen electric multiple units. The analysis focuses on the interrelation between the selected lithium-ion battery technology, the designed energy management strategy, and the fuel cell and battery sizes. In particular, 3 lithium-ion battery technologies and 4 strategies are proposed, leading to a sensitivity analysis composed of 12 cases. For each case, an approach for the optimal sizing of the fuel cell and battery is proposed. A scenario based on a real railway line is introduced and the obtained results are compared with the performance of a traditional diesel-electric multiple unit. The results show that a reduction of the hydrogen price is required so as the hydrogenbased option becomes competitive compared to the diesel-based one. The best result of the sensitivity analysis is obtained with an off-line optimization-based strategy and LTO batteries.

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Rationally designed high‐conductivity Hydrangea macrophylla‐like Si@NiO@Ni/C composites as a high‐performance anode material for lithium‐ion batteries

Liu

Gong

et al. 2021

Electrochemical Science Adv

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Reasonable design of the core-shell structure with a high conductive stable substrate is an effective way to solve the huge volume expansion and low intrinsic conductivity of Si-based anode materials in Li-ion batteries (LIBs). In this work, the Hydrangea macrophylla-like composites (Si@NiO@Ni/C) have been successfully synthesized by staged calcination of the Si@Ni(OH) 2 @C precursor. This design achieved a stable loading of Si nanoparticles on the high conductive substrate by forming chemical bonds and provided enough space for the expansion of Si. Furthermore, the existence of a hybrid coating layer could stabilize the formation of the solid electrolyte layer and accelerate the migration of Li + and electrons, which greatly improved the kinetics performance on the electrode surface. As a consequence, the design showed excellent cycle stability (1265.5 mAh g -1 after 300 cycles at 0.5 A/g) and rate performance (982.2, 876.1, 766.6, 645.8, 572 mAh/g at 0.2, 0.5, 1, 2, 3 A/g, respectively), providing a simple and controllable method to synthesize Si-based anode materials for high-performance LIBs.

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Modelling the cycling degradation of Li-ion batteries: Chemistry influenced stress factors

Cited by 45 publications

References 43 publications

Battery degradation: impact on economic dispatch

Battery degradation: impact on economic dispatch

In-depth Life Cycle Cost Analysis of a Hydrogen Electric Multiple Unit

Rationally designed high‐conductivity Hydrangea macrophylla‐like Si@NiO@Ni/C composites as a high‐performance anode material for lithium‐ion batteries

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