Electrolytes enriched by potassium perfluorinated sulfonates for lithium metal batteries

Qi, Shihan; Wang, Huaping; He, Jian; Liu, Jiandong; Cui, Chunyu; Wu, Mingguang; Li, Fang; Feng, Yuezhan; Ma, Jianmin

doi:10.1016/j.scib.2020.09.018

Cited by 154 publications

(77 citation statements)

References 35 publications

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“…In LMBs, the uncontrollable growth of Li dendrites in commercial carbonate electrolytes can lead to poor cycle performance and low CE, and even pierce the separator and cause safety problems. [ 6,23 ] At present, it is well accepted that constructing a good electrode/electrolyte interface is an effective method, [ 3 ] and many strategies such as optimizing electrolyte compositions, [ 24 ] designing 3D porous collectors, [ 25 ] constructing artificial SEI, [ 26 ] and using solid‐state electrolytes have been proposed in recently published work. [ 27 ] Among them, HCEs have received intensive attention as an effective strategy, as high concentrations of Li + can promote Li electroplating/stripping uniformly and avoid the growth of Li dendrites.…”

Section: Advantages Of Hces For Lmbsmentioning

confidence: 99%

Perspective on High‐Concentration Electrolytes for Lithium Metal Batteries

Jiang

Wang

et al. 2021

Small Structures

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Nonaqueous electrolytes play important roles in determining the performance of lithium‐ion batteries. However, the high flammability, poor thermal stability, narrow electrochemical window, and slow electrode reaction kinetics seriously hinder the application of batteries. Compared with traditional electrolytes, high‐concentration electrolytes (HCEs) have a higher ion transfer number, wider electrochemical window, higher thermal stability, low volatility, good flame resistance, and passivation of Al current collector at high potential. The HCEs can effectively overcome the shortcomings of traditional electrolytes, and provide a new direction for the development of next‐generation batteries. Therefore, it is very timely to write a perspective on HCEs for directing future research. Herein, the recent development of HCEs is described.

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Section: Advantages Of Hces For Lmbsmentioning

confidence: 99%

Perspective on High‐Concentration Electrolytes for Lithium Metal Batteries

Jiang

Wang

et al. 2021

Small Structures

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“…These chemicals come from varieties of different elements (sodium, magnesium, and aluminum), and these materials can be classed as a metal-ion battery concept. Studies of the chemical composition of these new batteries have shown that, although some lessons can be drawn from lithium-based batteries, new insights are needed based on the chemical properties of the elements themselves to develop a commercializable technology [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Ionic Liquid-Based Electrolytes for Aluminum/Magnesium/Sodium-Ion Batteries

et al. 2021

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Developing post-lithium-ion battery technology featured with high raw material abundance and low cost is extremely important for the large-scale energy storage applications, especially for the metal-based battery systems such as aluminum, sodium, and magnesium ion batteries. However, their developments are still in early stages, and one of the major challenges is to explore a safe and reliable electrolyte. An ionic liquid-based electrolyte is attractive and promising for developing safe and nonflammable devices with wide temperature ranges owing to their several unique properties such as ultralow volatility, high ionic conductivity, good thermal stability, low flammability, a wide electrochemical window, and tunable polarity and basicity/acidity. In this review, the recent emerging limitations and strategies of ionic liquid-based electrolytes in the above battery systems are summarized. In particular, for aluminum-ion batteries, the interfacial reaction between ionic liquid-based electrolytes and the electrode, the mechanism of aluminum storage, and the optimization of electrolyte composition are fully discussed. Moreover, the strategies to solve the problems of electrolyte corrosion and battery system side reactions are also highlighted. Finally, a general conclusion and a perspective focusing on the current development limitations and directions of ionic liquid-based electrolytes are proposed along with an outlook. In order to develop novel high-performance ionic liquid electrolytes, we need in-depth understanding and research on their fundamentals, paving the way for designing next-generation products.

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“…The main advantage for lithium-ion batteries compared to other batteries like lead acid and Ni-MH is the high energy density [1][2][3][4][5] . Further improvement of the energy density calls for next-generation batteries [6][7][8][9][10] . Batteries with alkaline metals as the anode show a feasible approach for this purpose [11][12][13] .…”

Section: Introductionmentioning

confidence: 99%