Precise in-situ and ex-situ study on thermal behavior of LiNi1/3Co1/3Mn1/3O2/graphite coin cell: From part to the whole cell

Liang, Chen; Jiang, Lihua; Ye, Shuliang; Wang, Zhaoyu; Wei, Zhiguo; Wang, Qingsong; Sun, Jinhua

doi:10.1016/j.jechem.2020.06.008

Cited by 32 publications

(15 citation statements)

References 36 publications

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“…In addition, the research on the formation mechanism of SEI film is also an important direction. For example, Xu et al − used the systematic control of current density to characterize the detailed structure and chemical distribution of EDLi and SEI layers to establish the correlation between electrochemical performance and current density induction, and finally established deposition conditions and lithium dendrites. There is correlation between growth kinetics and SEI formation mechanism.…”

Section: Characterization Of Seimentioning

confidence: 99%

Review on Action Mechanism and Characterization of Natural/Artificial Solid Electrolyte Interphase of Lithium Battery: Latest Progress and Future Directions

et al. 2023

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At present, the basic structure and mechanism of solid electrolyte interface (SEI) have been studied based on different models. Although many researchers have observed the characteristics and properties of SEI through various characterization methods, it is still unable to explain its dynamic mechanism of action from the very small microscopic level. Among them, most researchers change the electrochemical performance of batteries by adding additives or material coating. Traditional research methods only state the performance of batteries from the appearance but lack detailed analysis of the electrochemical reaction of batteries during the research process. Based on the analysis of some models established by SEI, this study summarized the analysis of the research angle of SEI film through various characterization methods. The present traditional SEI and artificial SEI are introduced. Finally, the methods to improve the chemical performance of lithium battery and the challenges to solve the problems are summarized and prospected.

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Section: Characterization Of Seimentioning

confidence: 99%

Review on Action Mechanism and Characterization of Natural/Artificial Solid Electrolyte Interphase of Lithium Battery: Latest Progress and Future Directions

et al. 2023

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“…During the use of the battery, the heat generation of the cathode is the largest. 18 In addition, when the internal materials of the battery are heated and decomposed, the oxygen released by cathode will undergo a series of complex reactions with the electrolyte, releasing a large amount of heat, and its thermal risk increases rapidly. [19][20][21][22] Therefore, the cathode material can be regarded as an important factor affecting the overall safety of the lithium ion battery.…”

Section: List Of Symbols Amentioning

confidence: 99%

Experimental Study on Pyrolysis Kinetics and Thermal Stability of Li (Ni_1/3Co_1/3Mn_1/3)O₂ Cathode Material at Different State of Charge

Wei

Cao

Liang

et al. 2021

J. Electrochem. Soc.

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The combination of thermogravimetric analysis, fourier transform infrared spectroscopy analysis and mass spectrometry (TG-IR-MS) are used to explore the kinetic characteristics and thermal stabilities of Li(Ni1/3Co1/3Mn1/3)O2 (NCM111) cathode under different states of charge (SOC). The sequence and amount of gas products generated during the thermal decomposition of cathode material are identified through thermogravimetric analysis combined with the FTIR spectrum and mass spectrometry. It is found that the amount of oxygen generation is proportional to SOC. In addition, Fraser-Suzuki function is used as a deconvolution method to separate the overlapped reaction process. The kinetic analysis of the major reaction stage is carried out. Results show the higher the SOC, the lower the activation energy. X-ray diffraction tests reveals that the structural stability of the cathode is weaken by the increase of SOC. The micro-calorimeter tests indicate that the thermal stability of coexist system decreases with the increase of SOC. This research can provide valuable information for the research on the thermal runaway mechanism of lithium-ion batteries and battery safety design.

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“…To address this challenge, researchers often employ ion doping, morphology regulation, or surface coating with conductive materials to improve the conductivity of LNCM material. [43][44][45][46][47][48][49] Although the above strategies can improve the electrochemical performance of LNCM to some extent, they also pose new challenges, such as the easy peeling of coating materials, the potential structural instability caused by doped ions, the risk of micro/nano structural collapse in LNCM materials. Therefore, it is crucial to explore new strategies and methods to improve the electrochemical performance of LNCM electrode materials.…”

Section: Introductionmentioning

confidence: 99%

“…The fourth issue is the poor electrical conductivity of LNCM, which results in poor first‐cycle coulombic efficiency and inferior rate capability of LIBs. To address this challenge, researchers often employ ion doping, morphology regulation, or surface coating with conductive materials to improve the conductivity of LNCM material [43–49] …”

Section: Introductionmentioning

confidence: 99%

A Novel and Convenient Sol‐Gel Approach for the Synthesis of High‐Performance LiNi_1/3Co_1/3Mn_1/3O₂ Cathode Materials in Lithium‐Ion Batteries

Han,

Bao,

et al. 2023

ChemistrySelect

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The development of high‐performance cathode materials for next‐generation lithium‐ion batteries (LIBs) is urgently needed. Among the potential cathode candidates, ternary layer oxide LiNi1/3Co1/3Mn1/3O2 (LNCM) has attracted considerable attention due to its high voltage discharge, large theoretical specific capacity, stable chemical structure and low cost. However, Li+/Ni2+ cation mixing and low conductivity have resulted in poor long‐term cyclability, voltage drop and capacity degradation during high‐rate charging. To address these issues, a sol‐gel technique together with an annealing treatment was used to prepare LNCM with well‐defined structure and good morphology. The material obtained by heating the LNCM precursor at 850 °C for 12 h (LNCM‐850/12) exhibited an initial discharge specific capacity of 217.9 mAh g−1 at 0.2 C and maintained a high reversible capacity of 116.1 mAh g−1 after 200 cycles. The LNCM‐850/12 electrode also demonstrated superior rate capacity and exceptional cycling stability due to its well‐defined structure, low Li+/Ni2+ cation mixing and good morphology. These characteristics improve the electrical/ionic conductivity, reduce the charge transfer resistance and shorten the Li+ diffusion distance, ultimately accelerating the Li+ insertion and extraction. Overall, the careful control of calcination time in LNCM synthesis provides valuable insights for the development of advanced cathodes for LIBs.

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Precise in-situ and ex-situ study on thermal behavior of LiNi1/3Co1/3Mn1/3O2/graphite coin cell: From part to the whole cell

Cited by 32 publications

References 36 publications

Review on Action Mechanism and Characterization of Natural/Artificial Solid Electrolyte Interphase of Lithium Battery: Latest Progress and Future Directions

Review on Action Mechanism and Characterization of Natural/Artificial Solid Electrolyte Interphase of Lithium Battery: Latest Progress and Future Directions

Experimental Study on Pyrolysis Kinetics and Thermal Stability of Li (Ni_1/3Co_1/3Mn_1/3)O₂ Cathode Material at Different State of Charge

A Novel and Convenient Sol‐Gel Approach for the Synthesis of High‐Performance LiNi_1/3Co_1/3Mn_1/3O₂ Cathode Materials in Lithium‐Ion Batteries

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Precise in-situ and ex-situ study on thermal behavior of LiNi1/3Co1/3Mn1/3O2/graphite coin cell: From part to the whole cell

Cited by 32 publications

References 36 publications

Review on Action Mechanism and Characterization of Natural/Artificial Solid Electrolyte Interphase of Lithium Battery: Latest Progress and Future Directions

Review on Action Mechanism and Characterization of Natural/Artificial Solid Electrolyte Interphase of Lithium Battery: Latest Progress and Future Directions

Experimental Study on Pyrolysis Kinetics and Thermal Stability of Li (Ni1/3Co1/3Mn1/3)O2 Cathode Material at Different State of Charge

A Novel and Convenient Sol‐Gel Approach for the Synthesis of High‐Performance LiNi1/3Co1/3Mn1/3O2 Cathode Materials in Lithium‐Ion Batteries

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Product

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About

Experimental Study on Pyrolysis Kinetics and Thermal Stability of Li (Ni_1/3Co_1/3Mn_1/3)O₂ Cathode Material at Different State of Charge

A Novel and Convenient Sol‐Gel Approach for the Synthesis of High‐Performance LiNi_1/3Co_1/3Mn_1/3O₂ Cathode Materials in Lithium‐Ion Batteries