One-pot solution coating of high quality LiF layer to stabilize Li metal anode

Lang, Jialiang; Long, Yuanzheng; Qu, Jiale; Luo, Xingfang; Wei, Hehe; Huang, Kai; Zhang, Haitian; Liu, Qi; Zhang, Qianfan; Li, Zhengcao; Wu, Hui

doi:10.1016/j.ensm.2018.04.024

Cited by 262 publications

(168 citation statements)

References 34 publications

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“…One method is to construct compact and stable interface by adjusting the composition of liquid electrolytes, such as adding Cs + , ﬂuoroethylene carbonate (FEC), AlCl 3 , copper acetate, and boron nitride (BN), thus inducing a strong SEI layer. Alternatively, we can also employ an artificial physical protective layer, such as LiF layer, Li 3 PO 4 film, lithiated Nafion/LiCl interface, hollow carbon nanosphere layer, and nitrogen doped graphene, etc. Although, several stable interfaces have been demonstrated to effectively stabilize the Li metal anode, yet the SEI layer has not been strong enough to overcome the inevitable volume change in Li metal foil during the Li plating and stripping.…”

Section: Introductionmentioning

confidence: 99%

3D Porous Cu Current Collectors Derived by Hydrogen Bubble Dynamic Template for Enhanced Li Metal Anode Performance

Qiu

Tang

Asif

et al. 2019

Adv Funct Materials

139

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Section: Introductionmentioning

confidence: 99%

3D Porous Cu Current Collectors Derived by Hydrogen Bubble Dynamic Template for Enhanced Li Metal Anode Performance

Qiu

Tang

Asif

et al. 2019

Adv Funct Materials

139

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“…To overcome the lithium dendrites and volume change issues, some strategies including artificial solid electrolyte interface (SEI) (Li 3 PO 4 , Li 3 N, and LiF‐containing SEI layers), advanced electrolytes (solid electrolytes, hybrid electrolytes) and 3D hosts (nickel foams, graphene oxide foams, etc.) have been exploited.…”

Section: Introductionmentioning

confidence: 99%

Perpendicular MXene Arrays with Periodic Interspaces toward Dendrite‐Free Lithium Metal Anodes with High‐Rate Capabilities

Cao

Zhu

Wang

et al. 2019

Adv Funct Materials

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Although lithium metal is an ultimate anode material for lithium-based batteries owing to its high theoretical capacity, the uncontrollable dendrites and infinite volume change associated with poor rate capabilities are stagnating its practical applications. Here, a new type of perpendicular MXene-Li array is developed with tunable MXene walls and constant space in between as anodes for lithium metal batteries. Such perpendicular MXene arrays possess dual periodic interspaces, i.e., nanometer-scale interspaces in MXene walls and micrometer-scale interspaces between MXene walls. The former interspaces are favorable for the fast transfer of lithium ions upon stripping and plating, and the latter enables efficiently homogenization of the electric field, leading to a good high-rate capability up to 20 mA cm −2 . More importantly, the notorious lightning rod effect and volume change are efficiently inhibited in such perpendicular MXene arrays, giving rise to a dendrite-free lithium anode with a low potential of 25 mV, a high capacity of 2056 mAh g −1 , and good cycle stability up to 1700 h. layers [10,11] ), advanced electrolytes (solid electrolytes, [12] hybrid electrolytes [13,14] ) and 3D hosts (nickel foams, [15,16] graphene oxide foams, [17][18][19][20] etc.) have been exploited. In particular, 3D hosts enable to significantly promote the transfer of lithium ions or electrons, dramatically improving the cycle life and inhibiting the volume change during repeated stripping and plating processes. To date, 3D hosts can be simply divided into two categories: insulated hosts and electrically conductive hosts. The insulated 3D hosts commonly include glass fiber (GF) cloths, [21] ZnO coated polyimide matrix, [22] and oxidized polyacrylonitrile nanofiber networks, [23] which can homogenize the lithium flux and enhance the transportation of lithium ions. In comparison, electrically conductive 3D hosts are common carbon nanotube sponges, [24] Cu frameworks, [25] reduced graphene oxide foams, [26] 3D graphitic carbon foams, [27] which enable to homogenize both electrical field and lithium ion flux. However, for above 3D hosts, their pores were usually disordered, far from the ideal ordered structures. Very recently, some hosts with periodic and uniform pores or channels have been explored, including vertically aligned 3D hosts including porous polyimide/lithium arrays, [28] glass fiber/ lithium arrays, [29] Cu microchannels, [30] and vertically oriented lithium-copper-lithium arrays. [31] These periodic upright structures are not only favorable for the fast transfer of both lithium ion and electron, but providing abundant interior spaces for lithium plating. Thus, these vertically aligned hosts show improved high-rate capabilities as applied for lithium-based batteries. Unfortunately, in such 3D hosts, the lightning rod effect becomes more severe, causing substantial lithium dendrites growing at the top end of the aligned walls. [30,31] Moreover, upon deep stripping and plating, lithium is still prone to mainly grow on the ...

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“…This is in agreement with literature reports indicating that a higher amount of LiF on the surface of the lithium-metal electrodes results in a stable electrodissolution and electrodeposition of lithium, occurring also with reduced overvoltages. [114] Further, we can conclude that the presence of the M3FSI monomer results in the formation of passivation layer that stabilizes the cycling performances of Li-metal anodes in LiÀS cells (Figure 10e) even if the overvoltages are higher due to the resistive nature of the passivation layer. The advantage of using monomers that are reductively polymerizing when in contact with the surface of the Li-metal anodes, is represented by the fact that the polymerization process occurs independently of an applied potential.…”

Section: Lithium Surface Passivation Using Polymerized Ilsmentioning

confidence: 85%

“…From an electrochemical performance point of view, the main difference observed between FSI‐ and TFSI‐based M3 monomers, is that the FSI‐based components build up a better protective layer. This is in agreement with literature reports indicating that a higher amount of LiF on the surface of the lithium‐metal electrodes results in a stable electrodissolution and electrodeposition of lithium, occurring also with reduced overvoltages . Further, we can conclude that the presence of the M3FSI monomer results in the formation of passivation layer that stabilizes the cycling performances of Li‐metal anodes in Li−S cells (Figure e) even if the overvoltages are higher due to the resistive nature of the passivation layer.…”

Section: Examples Of Ils and Pilsmentioning

confidence: 99%

Ionic Liquids and their Polymers in Lithium‐Sulfur Batteries

Josef

Yan

Stan

et al. 2019

Israel Journal of Chemistry

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Future optimized lithium‐sulfur batteries may promise higher energy densities than the current standard. However, there are many barriers which hinder their commercialization. In this review we describe how ionic liquids (ILs) and their polymers are utilized in different components of the battery to address some of these issues. For example, IL‐based electrolytes have the potential to reduce the solubility of polysulfides compared to conventional organic electrolytes. Polymerizing ILs directly on the surface of the Li‐metal anode is suggested as an approach to protect the surface of this electrode. Finally, using poly(ionic liquids) (PILs) as binders for the cathode active material may increase the performance of the cathode as compared to polyvinylidene difluoride (PVdF) and could inhibit swelling‐induced degradation. These results demonstrate the advantages of ILs and their polymers for improving the performance of Li−S batteries.

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One-pot solution coating of high quality LiF layer to stabilize Li metal anode

Cited by 262 publications

References 34 publications

3D Porous Cu Current Collectors Derived by Hydrogen Bubble Dynamic Template for Enhanced Li Metal Anode Performance

3D Porous Cu Current Collectors Derived by Hydrogen Bubble Dynamic Template for Enhanced Li Metal Anode Performance

Perpendicular MXene Arrays with Periodic Interspaces toward Dendrite‐Free Lithium Metal Anodes with High‐Rate Capabilities

Ionic Liquids and their Polymers in Lithium‐Sulfur Batteries

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