Stabilization of high-voltage lithium metal batteries using a sulfone-based electrolyte with bi-electrode affinity and LiSO2F-rich interphases

Dong, Liwei; Liu, Yuanpeng; Chen, Dongjiang; Han, Yupei; Ji, Ying; Liu, Jipeng; Yuan, Botao; Dong, Yachao; Li, Qun; Zhou, Shengyu; Zhong, Shun; Liang, Yonggan; Yang, Mingwei; Yang, Chunhui; He, Weidong

doi:10.1016/j.ensm.2021.10.045

Cited by 87 publications

(46 citation statements)

References 49 publications

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“…Mixing sulfones with other solvents is the most effective method to tackle the issue. By incorporating fluoroethylene carbonate into tetramethylene sulfone, the mixed electrolyte forms ultra-thin fluorine and sulfur-rich CEI layer [ 109 ].…”

Section: Robust Cei: From Electrolyte Designmentioning

confidence: 99%

Critical Review on cathode–electrolyte Interphase Toward High-Voltage Cathodes for Li-Ion Batteries

2022

Nano-Micro Lett.

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The thermal stability window of current commercial carbonate-based electrolytes is no longer sufficient to meet the ever-increasing cathode working voltage requirements of high energy density lithium-ion batteries. It is crucial to construct a robust cathode–electrolyte interphase (CEI) for high-voltage cathode electrodes to separate the electrolytes from the active cathode materials and thereby suppress the side reactions. Herein, this review presents a brief historic evolution of the mechanism of CEI formation and compositions, the state-of-art characterizations and modeling associated with CEI, and how to construct robust CEI from a practical electrolyte design perspective. The focus on electrolyte design is categorized into three parts: CEI-forming additives, anti-oxidation solvents, and lithium salts. Moreover, practical considerations for electrolyte design applications are proposed. This review will shed light on the future electrolyte design which enables aggressive high-voltage cathodes.

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Section: Robust Cei: From Electrolyte Designmentioning

confidence: 99%

Critical Review on cathode–electrolyte Interphase Toward High-Voltage Cathodes for Li-Ion Batteries

2022

Nano-Micro Lett.

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“…[4][5][6][7][8] Various exothermal side reactions give rise to the release of tremendous amount of thermal energy accompanied with explosion and even fire hazards. [5,9] As an important component of LIBs, separator is crucial to preventing internal short circuit, providing the channels for lithium ion (Li + ) and ensuring the safety of LIBs. Therefore, exploring the separator with high thermal stability has increasingly become essential to enhance the security for LIBs towards a wide range of applications.…”

Section: Doi: 101002/smll202107664mentioning

confidence: 99%

A Single‐Layer Composite Separator with 3D‐Reinforced Microstructure for Practical High‐Temperature Lithium Ion Batteries

Yuan

Liu

Dong

et al. 2022

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Incorporation of ceramic materials into separators has been frequently applied in both research and industry to improve the overall high‐temperature performances of lithium ion batteries. However, inorganic ceramic particles tend to form aggregation in separators and even fall off in the separator matrix due to the inferior combination between ceramic particles and polymer matrix, giving rise to a decrease in separator porosity and thus the degradation of battery performances. Herein, a single‐layer core‐shell architecture is designed to reinforce the polymer matrix through encircling Al2O3 particles by poly(vinylidene fluoride) with strong inter‐molecular interaction. The 3D‐reinforced microstructure effectively improves pore distribution and thermal stability to resist the dimensional deformation at high temperatures, thus giving rise to a high Coulombic efficiency of 99.16% and 87.5% capacity retention after 500 cycles at 80 °C for LiFePO4/Li batteries. In particular, the excellent performances of the proposed separator microstructure are confirmed with a thickness value of commercial separators. This work provides a promising strategy to fabricate a core‐shell structural composite separator for stable lithium ion batteries at high temperatures.

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“…Unfortunately, these anode materials have many issues such as large volume change, strong polarization and unstable structure, which lead to large voltage lag and poor cycle stability, thus also limiting their practical application. [27][28][29] 1.3. Electrolyte contributions to lithium batteries with high energy/power densities and cycle-life As is well known, electrolytes of LBs play a decisive function in lithium-ion (Li + ) transfer during the battery charge and discharge processes.…”

Section: Cathode and Anode Contributions To Lithium Batteries With Hi...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advanced electrolyte systems with additives for high-cell-voltage and high-energy-density lithium batteries

Liu

Wang

et al. 2022

J. Mater. Chem. A

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Stabilization of high-voltage lithium metal batteries using a sulfone-based electrolyte with bi-electrode affinity and LiSO2F-rich interphases

Cited by 87 publications

References 49 publications

Critical Review on cathode–electrolyte Interphase Toward High-Voltage Cathodes for Li-Ion Batteries

Critical Review on cathode–electrolyte Interphase Toward High-Voltage Cathodes for Li-Ion Batteries

A Single‐Layer Composite Separator with 3D‐Reinforced Microstructure for Practical High‐Temperature Lithium Ion Batteries

Advanced electrolyte systems with additives for high-cell-voltage and high-energy-density lithium batteries

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