Temperature-dependent cycling performance and ageing mechanisms of C6/LiNi1/3Mn1/3Co1/3O2 batteries

Li, Dongjiang; Li, Hu; Danilov, Dmitri L.; Gao, Lu; Zhou, Jiang; Eichel, Rüdiger‐A.; Yang, Yong; Notten, Peter H. L.

doi:10.1016/j.jpowsour.2018.06.035

Cited by 63 publications

(49 citation statements)

References 54 publications

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“…40,41 These results agreed with the previous reports that the Ni and Co elements were concentrated in the inner layer of the SEI. 38,42 However, the Mn 2p 1/2 and 2p 3/2 peaks existed at the beginning and increased with etching (Figure 6e), indicating that the Mn element could be redissolved and deposited on the top surface of the anode SEI layers during the Li + deintercalation process so that the Mn element exhibited higher catalytic activity for the SEI growth. 43,44 Further XPS analysis of NCM622 cathodes after 100 cycling tests is presented in Figure S9.…”

Section: Resultsmentioning

confidence: 99%

Performance and Stability Improvement of Layered NCM Lithium-Ion Batteries at High Voltage by a Microporous Al₂O₃ Sol–Gel Coating

Wahyudi

et al. 2019

ACS Omega

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A simple and low-cost polymer-aided sol–gel method was developed to prepare γ-Al 2 O 3 protective layers for LiNi 0.6 Co 0.2 Mn 0.2 O 2 (NCM622) cathode materials. The selected polyvinyl alcohol polymer additive not only facilitates the formation of a uniform and thin γ-Al 2 O 3 layer on the irregular and rough cathode particle surface to protect it from corrosion but also serves as a pore-forming agent to generate micropores in the film after sintering to allow fast transport of lithium ions, which guaranteed the excellent and stable battery performance at high working voltage. Detailed studies in the full battery mode showed that the leached corrosion species from the cathode had a more profound harmful effect to the graphite anode, which seemed to be the dominating factor that caused the battery performance decay.

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Section: Resultsmentioning

confidence: 99%

Performance and Stability Improvement of Layered NCM Lithium-Ion Batteries at High Voltage by a Microporous Al₂O₃ Sol–Gel Coating

Wahyudi

et al. 2019

ACS Omega

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“…Moreover, maximum capacity fading plots based on EMF curves can be used to determine capacity loss (irreversible capacity loss ∆Q ir ) at different C-rates. Differential voltage curves can also be applied to EMF, and dV EMF dQ can be regarded as a nondestructive method in which peak shifting is indicative of cell degradation and can reveal anode material decay and voltage slippage effects [121].…”

Section: Maximum Capacitymentioning

confidence: 99%

Degradation Mechanisms and Mitigation Strategies of Nickel-Rich NMC-Based Lithium-Ion Batteries

Yuan

Zhang

et al. 2019

Electrochem. Energ. Rev.

484

383

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The demand for lithium-ion batteries (LIBs) with high mass-specific capacities, high rate capabilities and long-term cyclabilities is driving the research and development of LIBs with nickel-rich NMC (LiNi x Mn y Co 1−x−y O 2 , x ⩾ 0.5 ) cathodes and graphite (Li x C 6 ) anodes. Based on this, this review will summarize recently reported and widely recognized studies of the degradation mechanisms of Ni-rich NMC cathodes and graphite anodes. And with a broad collection of proposed mechanisms on both atomic and micrometer scales, this review can supplement previous degradation studies of Ni-rich NMC batteries. In addition, this review will categorize advanced mitigation strategies for both electrodes based on different modifications in which Ni-rich NMC cathode improvement strategies involve dopants, gradient layers, surface coatings, carbon matrixes and advanced synthesis methods, whereas graphite anode improvement strategies involve surface coatings, charge/discharge protocols and electrolyte volume estimations. Electrolyte components that can facilitate the stabilization of anodic solid electrolyte interfaces are also reviewed, and trade-offs between modification techniques as well as controversies are discussed for a deeper understanding of the mitigation strategies of Ni-rich NMC/graphite LIBs. Furthermore, this review will present various physical and electrochemical diagnostic tools that are vital in the elucidation of degradation mechanisms during operation to supplement future degradation studies. Finally, this review will summarize current research focuses and propose future research directions.

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“…Figure 4 shows SEM images of recovered cathode powder and leached residue. Compared with the recovered cathode powder (Figure 4a,b), the surface morphologies of leached residue (Figure 4c,d [51]. However, many literatures report ionic charges of manganese, nickel and cobalt in leaching solution from cathode materials are all +2.…”

Section: Removal Of Aluminum and Leaching Of Cathode Powder Materialsmentioning

confidence: 97%

High-Performance Recovery of Cobalt and Nickel from the Cathode Materials of NMC Type Li-Ion Battery by Complexation-Assisted Solvent Extraction

Wang

Yang

2020

Minerals

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The annual global volume of waste lithium-ion batteries (LIBs) has been increasing over years. Although solvent extraction method seems well developed, the separation factor between cobalt and nickel is still relatively low—only 72 when applying conventional continuous-countercurrent extraction. In this study, we improved the separation factor of cobalt and nickel by complexation-assisted solvent extraction. Before solvent extraction procedure, leaching kinetic of Li, Ni, Co and Mn was studied and can be explained by the Avrami equation. Leached residues were also investigated by SEM and XRD. Operation parameters of complexation-assisted solvent extraction were examined, including volume ratio of extractant to diluent, types of diluent, type of complexing reagent, extractant saponification percentage and volume ratio of organic phase to aqueous phase. The optimal separation factor of complexation-assisted solvent extraction could be improved to 372, which is five times that of conventional solvent extraction. The separation tendency would be interpreted by the relationship between extraction equilibrium pH and log distribution coefficient.

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Temperature-dependent cycling performance and ageing mechanisms of C6/LiNi1/3Mn1/3Co1/3O2 batteries

Abstract: This project has received funding from the European Union's Horizon research and innovation programme under grant agreement no. 769900 The contents of this publication are the sole responsibility of the authors and do not necessarily reflect the opinion of the European Union.

Cited by 63 publications

References 54 publications

Performance and Stability Improvement of Layered NCM Lithium-Ion Batteries at High Voltage by a Microporous Al₂O₃ Sol–Gel Coating

Performance and Stability Improvement of Layered NCM Lithium-Ion Batteries at High Voltage by a Microporous Al₂O₃ Sol–Gel Coating

Degradation Mechanisms and Mitigation Strategies of Nickel-Rich NMC-Based Lithium-Ion Batteries

High-Performance Recovery of Cobalt and Nickel from the Cathode Materials of NMC Type Li-Ion Battery by Complexation-Assisted Solvent Extraction

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Temperature-dependent cycling performance and ageing mechanisms of C6/LiNi1/3Mn1/3Co1/3O2 batteries

Abstract: This project has received funding from the European Union's Horizon research and innovation programme under grant agreement no. 769900 The contents of this publication are the sole responsibility of the authors and do not necessarily reflect the opinion of the European Union.

Cited by 63 publications

References 54 publications

Performance and Stability Improvement of Layered NCM Lithium-Ion Batteries at High Voltage by a Microporous Al2O3 Sol–Gel Coating

Performance and Stability Improvement of Layered NCM Lithium-Ion Batteries at High Voltage by a Microporous Al2O3 Sol–Gel Coating

Degradation Mechanisms and Mitigation Strategies of Nickel-Rich NMC-Based Lithium-Ion Batteries

High-Performance Recovery of Cobalt and Nickel from the Cathode Materials of NMC Type Li-Ion Battery by Complexation-Assisted Solvent Extraction

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Product

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Performance and Stability Improvement of Layered NCM Lithium-Ion Batteries at High Voltage by a Microporous Al₂O₃ Sol–Gel Coating

Performance and Stability Improvement of Layered NCM Lithium-Ion Batteries at High Voltage by a Microporous Al₂O₃ Sol–Gel Coating