Inner Lithium Fluoride (LiF)-Rich Solid Electrolyte Interphase Enabled by a Smaller Solvation Sheath for Fast-Charging Lithium Batteries

Guo, Hexin; Tian, Yao; Liu, Yuanming; Wu, Junru; Kang, Feiyu; Li, Baohua

doi:10.1021/acsami.2c17628

Cited by 5 publications

(2 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2023, Li et al have demonstrated that the size effect of solvent shell has a great influence on the fastcharging performance of Li batteries (Figure 14b). [116] The results showed that the stable and suitably sized terpolymer graphite intercalation compounds (GICs) in the graphite anode is formed in diethyl ether (DEE) /LiFSI electrolyte, and generate LiF-rich SEI internally.…”

Section: Electrolyte Improvementmentioning

confidence: 99%

Unveiling the Mystery of LiF within Solid Electrolyte Interphase in Lithium Batteries

Li,

Wang,

Huang

et al. 2023

Small

View full text Add to dashboard Cite

Over the past decades, significant advances have been made in lithium‐ion batteries. However, further requirement on the electrochemical performance is still a powerful motivator to improve battery technology. The solid electrolyte interphase (SEI) is considered as a key component on negative electrode, having been proven to be crucial for the performance, even in safety of batteries. Although numerous studies have focused on SEI in recent years, its specific properties, including structure and composition, remain largely unclear. Particularly, LiF, a common and important component in SEI, has sparked debates among researchers, resulting in divergent viewpoints. In this review, the recent research findings on SEI and delve into the characteristics of the LiF component is aim to consolidated. The cause of SEI formation and the evolution of SEI models is summarized. The distinctive properties of SEI generated on various negative electrodes is further discussed, the ongoing scholarly controversy surrounding the function of LiF within SEI, and the specific physicochemical properties about LiF and its synergistic effect in heterogeneous components. The objective is to facilitate better understanding of SEI and the role of the LiF component, ultimately contributing to the development of Li batteries with enhanced electrochemical performance and safety for battery communities.

show abstract

Section: Electrolyte Improvementmentioning

confidence: 99%

Unveiling the Mystery of LiF within Solid Electrolyte Interphase in Lithium Batteries

Li,

Wang,

Huang

et al. 2023

Small

View full text Add to dashboard Cite

show abstract

“…The Li-ion diffusion in LiF crystals is slow, which conflicts with the high ionic conductivity of LiF-rich SEI. [33,34] However, it claimed that the distribution of inorganic components in SEI is with nano-tiny grain and that there exists tremendous grain boundaries. The Li-ion diffuses much faster in the grain boundary than in the bulk of inorganic components.…”

Section: Introductionmentioning

confidence: 99%

Insight into uniform filming of LiF‐rich interphase via synergistic adsorption for high‐performance lithium metal anode

He,

Wang,

Wang

et al. 2023

Exploration

View full text Add to dashboard Cite

Multi‐scale simulation is an important basis for constructing digital batteries to improve battery design and application. LiF‐rich solid electrolyte interphase (SEI) is experimentally proven to be crucial for the electrochemical performance of lithium metal batteries. However, the LiF‐rich SEI is sensitive to various electrolyte formulas and the fundamental mechanism is still unclear. Herein, the structure and formation mechanism of LiF‐rich SEI in different electrolyte formulas have been reviewed. On this basis, it further discussed the possible filming mechanism of LiF‐rich SEI determined by the initial adsorption of the electrolyte‐derived species on the lithium metal anode (LMA). It proposed that individual LiF species follow the Volmer–Weber mode of film growth due to its poor wettability on LMA. Whereas, the synergistic adsorption of additive‐derived species with LiF promotes the Frank‐Vander Merwe mode of film growth, resulting in uniform LiF deposition on the LMA surface. This perspective provides new insight into the correlation between high LiF content, wettability of LiF, and highperformance of uniform LiF‐rich SEI. It disclosed the importance of additive assistant synergistic adsorption on the uniform growth of LiF‐rich SEI, contributing to the reasonable design of electrolyte formulas and high‐performance LMA, and enlightening the way for multi‐scale simulation of SEI.

show abstract

Advanced Ether‐Based Electrolytes for Lithium‐ion Batteries

Wang,

Shi,

Liu

et al. 2024

Advanced Energy Materials

View full text Add to dashboard Cite

Lithium‐ion batteries (LIBs) have emerged as vital elements of energy storage systems permeating every facet of modern living, particularly in portable electronic devices and electric vehicles. However, with the sustained economic and social development, new‐generation LIBs with high energy density, wide operating temperature range, fast charge, and high safety are eagerly expected, while conventional ethylene carbonate (EC)‐based carbonate electrolytes fail to satisfy corresponding requirements. Comparatively, ether‐based electrolyte systems with fascinating properties have recently been revived in LIBs fields, and many advanced LIBs with exciting performances under ether‐based electrolytes have been developed. This review provides an extensive overview of the latest breakthroughs concerning ether‐based electrolytes applied in LIBs with intercalation cathodes. To systematically outline the progression of ether‐based electrolytes, this review is categorized from the perspective of anodes as follows: i) graphite anode‐based LIBs; ii) silicon anode‐based LIBs; iii) lithium metal anode‐based LIBs.

show abstract

Inner Lithium Fluoride (LiF)-Rich Solid Electrolyte Interphase Enabled by a Smaller Solvation Sheath for Fast-Charging Lithium Batteries

Cited by 5 publications

References 42 publications

Unveiling the Mystery of LiF within Solid Electrolyte Interphase in Lithium Batteries

Unveiling the Mystery of LiF within Solid Electrolyte Interphase in Lithium Batteries

Insight into uniform filming of LiF‐rich interphase via synergistic adsorption for high‐performance lithium metal anode

Advanced Ether‐Based Electrolytes for Lithium‐ion Batteries

Contact Info

Product

Resources

About