Effect of overcharge on the electrochemical and thermal safety behaviors of LiNi0.5Mn0.3Co0.2O2/graphite lithium-ion batteries

Xie, Song; Gong, Yize; Ping, Xianke; Sun, Jinghua; Chen, Xiantao; He, Yuanhua

doi:10.1016/j.est.2021.103829

Cited by 18 publications

(2 citation statements)

References 43 publications

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“…The battery undergoes degradation and gradually thermal runaway, resulting in capacity loss and significant degradation of battery performance. And the oxygen released by its decomposition will react with electrolyte violently and may even cause the battery to explode. − During a normal charging process, the heat production is not significant and the battery temperature does not vary significantly. As charging continues, the redundant blank space at the anode is filled with lithium ions and the cathode is continuously forced to migrate lithium ions to anode under the action of external forces and produce CO 2 , CO, and other gases, and by this time the battery voltage has risen to a high level.…”

Section: Oxygen Release Mechanism Of Nickel-rich Lini1–x–y Co X Mn Y ...mentioning

confidence: 99%

Review on Oxygen Release Mechanism and Modification Strategy of Nickel-Rich NCM Cathode Materials for Lithium-Ion Batteries: Recent Advances and Future Directions

Duan,

Chen,

Zhang

et al. 2024

Energy Fuels

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With the commercialization of lithium-ion battery (LIB) powered electric vehicles, they have been recognized as an important green technology due to the merit of zero CO 2 emissions to mitigate global climate change. As for the cathode materials, nickel-rich LiNi x Co y Mn 1-x-y O 2 (NCM) stand out due to high energy density. However, key issues of cation migration, phase transition, formation of oxygen vacancies and battery overcharge would cause oxygen release problems when operating at high voltages, which seriously harms battery performance. When applied in large-scale battery packs, the problemes mentioned above of individual cells may affect the overall battery pack due to their close stack. Therefore, study to avoid the phenomenon of oxygen release generation is necessary, while, a systematic summary of its mechanism can help to improve the thermal stability of LIBs. Herein, this review initiates to systematically elucidate the mechanism of oxygen release in nickel-rich NCM followed by further summarizing the effective strategies to deal with the oxygen release phenomenon, and finally give an outlook on the future prospects of nickel-rich NCM.

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Section: Oxygen Release Mechanism Of Nickel-rich Lini1–x–y Co X Mn Y ...mentioning

confidence: 99%

Review on Oxygen Release Mechanism and Modification Strategy of Nickel-Rich NCM Cathode Materials for Lithium-Ion Batteries: Recent Advances and Future Directions

Duan,

Chen,

Zhang

et al. 2024

Energy Fuels

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“…Although there is a shortage of 5 + year-long studies in the operational environments in both cases, VRFBs are believed to have a substantially longer cycle and calendar life (13-25 years) than LIBs (<8 years). 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.…”

Section: Vanadium Rfbs-the Technology Frontrunnersmentioning

confidence: 99%

Review—Flow Batteries from 1879 to 2022 and Beyond

Tolmachev

2023

J. Electrochem. Soc.

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We present a quantitative bibliometric study of flow battery technology from the first zinc-bromine cells in the 1870s to megawatt vanadium redox flow battery (RFB) installations in the 2020s. We emphasize that the cost advantage of RFBs in multi-hour charge-discharge cycles is compromised by the inferior energy efficiency of these systems, and that there are limits on the efficiency improvement due to internal cross-over and the cost of power (at low current densities) and due to acceptable pressure drop (at high current densities). Differences between lithium-ion and vanadium redox flow batteries are discussed from the end-user perspective.

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Catalase‐Based Air‐Cathode for Biocompatible Zinc–Air Battery

García‐Caballero,

López‐León,

Abad

et al. 2024

ChemCatChem

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The use of catalase (CAT) from bovine liver as electrocatalyst in the air electrode of a primary zinc‐air battery (ZAB) with neutral electrolyte (pH 7.4) is reported. Firstly, the use of Nafion for immobilizing CAT onto electrode surface allowed to obtain long‐term stability of the catalytic activity of CAT. Besides, analysis of the CAT and CAT‐Nafion as catalysts for oxygen reduction reaction (ORR) was carried by lineal scan voltammetry (LSV) using a rotating ring‐disk electrode (RRDE), demonstrating a four‐electron ORR mechanism. Finally, CAT and CAT‐Nafion were tested as air electrodes in flooded ZAB and compared against Human Hemoglobin based‐ZAB. Our results demonstrated the significant influence of the protein coating of the heme groups on the ZAB performance, affecting greatly to the discharge capacity and to the power density.

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Effect of overcharge on the electrochemical and thermal safety behaviors of LiNi0.5Mn0.3Co0.2O2/graphite lithium-ion batteries

Cited by 18 publications

References 43 publications

Review on Oxygen Release Mechanism and Modification Strategy of Nickel-Rich NCM Cathode Materials for Lithium-Ion Batteries: Recent Advances and Future Directions

Review on Oxygen Release Mechanism and Modification Strategy of Nickel-Rich NCM Cathode Materials for Lithium-Ion Batteries: Recent Advances and Future Directions

Review—Flow Batteries from 1879 to 2022 and Beyond

Catalase‐Based Air‐Cathode for Biocompatible Zinc–Air Battery

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