Liquid electrolyte development for low-temperature lithium-ion batteries

Hubble, Dion; Brown, David E.; Zhao, Yinjian; Chen, Fang; Lau, Jonathan; McCloskey, Bryan D.; Liu, Gao

doi:10.1039/d1ee01789f

Cited by 259 publications

(178 citation statements)

References 142 publications

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“…The factor 1/T in pre-exponential factor ( ) f T should be attributed to the Nernst-Einstein equation [50] and ionic diffusion coefficient equation [51] as denoted in Eqs. (10) and (11). Note that the Nernst-Einstein equation works well only when ions in systems exhibit no interactions with each other [52].…”

Section: The Temperature Dependence Of Ionic Diffusionmentioning

confidence: 99%

“…Along with the development of battery technologies, battery applications at cold regions become a great challenge. Therefore, many studies have focused on improving the low temperature performance of aqueous [7,8] and non-aqueous [9][10][11] batteries. Aqueous batteries usually exhibit better rate capability than non-aqueous batteries especially at low temperature [12][13][14], suggesting their potential application prospect at cold regions.…”

Section: Introductionmentioning

confidence: 99%

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Design strategies for low temperature aqueous electrolytes

2022

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Low temperature aqueous batteries (LT-ABs) have attracted extensive attention recent years. The LT-ABs suffer from electrolyte freezing, slow ionic diffusion and sluggish interfacial redox kinetics at low temperature. In this review, we discuss physicochemical properties of aqueous electrolytes in terms of phase diagram, ion diffusion and interfacial redox kinetics to guide the design of low temperature aqueous electrolytes (LT-AEs). Firstly, the characteristics of equilibrium and nonequilibrium phase diagrams are introduced to analyze the antifreezing mechanisms and propose design strategies for LT-AEs. Then, the temperature/concentration/charge carrier dependence conductivity characteristics in aqueous electrolytes are reviewed to comprehend and regulate the ion diffusion kinetics. Moreover, we introduce interfacial studies in aqueous and non-aqueous batteries and propose potential improvement strategies for interfacial redox kinetics in LT-ABs. Finally, we summarize design strategies of LT-AEs for developing high performance LT-ABs.

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Section: The Temperature Dependence Of Ionic Diffusionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design strategies for low temperature aqueous electrolytes

2022

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“…When the operating temperature is decreased to − 20 °C, Li||LiCoO 2 cells can deliver an initial capacity of 135.0 mAh g −1 with 86% retention at 50 th cycle, indicating the fast Li + transport kinetics through interfaces and low energy barrier of ion diffusion in DFH electrolyte. In comparison, the cells using both baseline and DDH electrolytes present a fast capacity decline with fluctuating CE due to the decreased ionic conductivity and the sluggish interfacial charge transfer kinetics [43]. Benefiting from the superior Li + diffusion with DFH electrolyte, Li||LiCoO 2 cells also exhibit an improved rate performance (Fig.…”

Section: Electrochemical Performances Evaluationmentioning

confidence: 99%

Electrostatic Interaction Tailored Anion-Rich Solvation Sheath Stabilizing High-Voltage Lithium Metal Batteries

Gao

Wang

et al. 2022

Nano-Micro Lett.

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Through tailoring interfacial chemistry, electrolyte engineering is a facile yet effective strategy for high-performance lithium (Li) metal batteries, where the solvation structure is critical for interfacial chemistry. Herein, the effect of electrostatic interaction on regulating an anion-rich solvation is firstly proposed. The moderate electrostatic interaction between anion and solvent promotes anion to enter the solvation sheath, inducing stable solid electrolyte interphase with fast Li+ transport kinetics on the anode. This as-designed electrolyte exhibits excellent compatibility with Li metal anode (a Li deposition/stripping Coulombic efficiency of 99.3%) and high-voltage LiCoO2 cathode. Consequently, the 50 μm-thin Li||high-loading LiCoO2 cells achieve significantly improved cycling performance under stringent conditions of high voltage over 4.5 V, lean electrolyte, and wide temperature range (− 20 to 60 °C). This work inspires a groundbreaking strategy to manipulate the solvation structure through regulating the interactions of solvent and anion for high-performance Li metal batteries.

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“…Increased accuracy within the viscous regime could be critical for specic applications such as low-temperature electrolyte engineering. 39 Selected model: interpretations…”

Section: Selected Model: Accuracy and Overttingmentioning

confidence: 99%