Enabling reliable lithium metal batteries by a bifunctional anionic electrolyte additive

Ma, Yulin; Zhou, Zhenxin; Li, Changjin; Wang, Long; Yang, Wang; Cheng, Xinqun; Zuo, Pengjian; Gao, Yunzhi; Yin, Geping

doi:10.1016/j.ensm.2017.10.015

Cited by 136 publications

(68 citation statements)

References 46 publications

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“…The reason can be ascribed to the lower free energies in two steps of fracture of two C‐F bonds and a smaller Li···F distance (1.9 vs. 5.4 Å for 1,2‐dfBen and 1,3‐dfBen, respectively) in the intermediate after the first step for 1,2‐dfBen compared with those of 1,3‐dfBen. In addition to FEC and 2‐FP, other organic additives, such as vinylene carbonate (VC), [ 105 ] dimethyl sulfate (DMS), [ 106 ] poly(sulfur‐random‐1,3‐diisopropenylbenzene) (PSD), [ 107 ] N,N ‐dimethylethanolamine (DMEA), [ 108 ] trimethylsilyl(fluorosulfonyl)( n ‐nonafluorobut‐anesulfonyl)imide (TMS‐FNFSI), [ 109 ] tripropargyl phosphate (TPP), [ 110 ] and tris (2, 2, 2‐trifluoroethyl) borate (TTFEB), [ 111 ] as well as some organic salts (e.g., lithium bis(oxalato)borate (LiBOB), [ 33 ] lithium difluoro(oxalate)borate (LiDFOB) [ 112 ] ) etc. have also been developed to regulate the SEI layer (Figure 5).…”

Section: Regulation Of Solid Electrolyte Interphasementioning

confidence: 99%

“…have also been developed to regulate the SEI layer (Figure 5). Some of them could not only induce more LiF products but also introduce other inorganic and/or organic components, [ 100,111–113 ] even could form a stable cathode electrolyte interphase (CEI) at the cathode. [ 33 ] The CEI layer on the cathode side can also improve battery performance.…”

Section: Regulation Of Solid Electrolyte Interphasementioning

confidence: 99%

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Electrolyte additives: Adding the stability of lithium metal anodes

Dai

Wang

2020

Nano Select

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Lithium metal is regarded as the “holy grail” of anodes due to its highest theoretical specific capacity and lowest electrode potential, and hence is considered as a promising anode candidate to meet the growing demand for large scale energy storage devices. However, lithium metal anode is suffering the challenges in side reactions, volume change, and low Coulombic efficiency, and particularly the growth of lithium dendrites, which extremely limits its practical applications. To tackle these issues, many strategies have been developed. Among them, the addition of electrolyte additives is an effective and the simplest method. In this review, electrolyte additives for enhancing the stability of Li metal anodes are summarized, according to their different working mechanisms. The prospects of key challenges and future trends of such electrolyte additives are discussed.

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Section: Regulation Of Solid Electrolyte Interphasementioning

confidence: 99%

Section: Regulation Of Solid Electrolyte Interphasementioning

confidence: 99%

Electrolyte additives: Adding the stability of lithium metal anodes

Dai

Wang

2020

Nano Select

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“…Another representative method of stable SEI realization is the introduction of a functional electrolyte, which is both efficient and economical. [ 57,58,150–155 ] The functional electrolyte and small amounts of additives can easily form a uniform and robust SEI on the Li metal surface to prevent electrolyte decomposition and suppress Li dendrite formation during repeated charge/discharge. Jin et al fabricated a patterned Li metal electrode with a vinylene carbonate (VC) additive, [ 156 ] which secured high charge/discharge efficiency by promoting the formation of a dense SEI.…”

Section: Use Of LI Metal Powder and Micropatterning To Increase Surfamentioning

confidence: 99%

Structure‐Controlled Li Metal Electrodes for Post‐Li‐Ion Batteries: Recent Progress and Perspectives

Jin

Park

Ryou

et al. 2020

Adv Materials Inter

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more batteries, this approach fails to exceed the threshold of 500 km in view of the limited battery mounting space in EVs and the almost saturated energy density of state-of-the-art LIBs (Figure 1a).As demonstrated in the road map for the development of the eGolf (an EV from Volkswagen), a driving range of 420 km can be achieved by 2020 based on the currently available LIB chemistry, cell design techniques, and vehicle frame lightening.

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“…[ 25–28 ] These severe drawbacks significantly reduce the lifespan of lithium metal batteries (LMBs) and even result in hazardous safety issues. To date, tremendous efforts have been devoted to developing strategies to address the drawbacks of LMAs, such as electrolyte engineering, [ 29–38 ] interface modification, [ 39–48 ] composite anodes, [ 49–55 ] theoretical simulations, [ 53,56–59 ] and so on. [ 60 ] Therein, the composite Li anode that combines a porous host with Li metal has emerged as a promising candidate to circumvent the issues of planar Li metal as an anode.…”

Section: Introductionmentioning

confidence: 99%

The Insights of Lithium Metal Plating/Stripping in Porous Hosts: Progress and Perspectives

et al. 2021

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Lithium (Li) metal is strongly regarded as a promising anode for next‐generation secondary batteries. However, the nonuniform plating/stripping and volume fluctuation of the Li metal anode give rise to low Coulombic efficiency and short lifespan of Li metal batteries, which hinder practical applications of the Li metal anode. A composite Li metal anode that employs a stable porous host has been proposed as a promising strategy to regulate the behaviors of Li plating/stripping and relieve volume fluctuation. In a porous host, the basic building block is a pore. The pore structure affects the distribution of electric and Li‐ion concentration fields during Li plating/stripping, thus regulating Li plating/stripping and the lifespan of the composite Li metal anode. Therefore, herein, the recent progress in investigating the behavior of Li plating/stripping in a pore based on liquid electrolytes is summarized from the aspects of pore diameter, depth, and tortuosity. Furthermore, the perspectives of rational design of the pore structure for a composite Li metal anode are presented to promote the development of Li metal anodes.

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Enabling reliable lithium metal batteries by a bifunctional anionic electrolyte additive

Cited by 136 publications

References 46 publications

Electrolyte additives: Adding the stability of lithium metal anodes

Electrolyte additives: Adding the stability of lithium metal anodes

Structure‐Controlled Li Metal Electrodes for Post‐Li‐Ion Batteries: Recent Progress and Perspectives

The Insights of Lithium Metal Plating/Stripping in Porous Hosts: Progress and Perspectives

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