Recent development in lithium metal anodes of liquid-state rechargeable batteries

Liu, Sufu; Wang, X.L.; Xie, Dong; Xia, Xue; Gu, C.D.; Wu, Jianbo; Tu, J.P.

doi:10.1016/j.jallcom.2017.09.204

Cited by 48 publications

(18 citation statements)

References 126 publications

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“…The major intrinsic limitation of LIBs is the low theoretical specific capacity (372 mAh·g −1 ) of the traditional graphite anode, which does not allow the increase of practical LIB energy density to more than 300 Wh·kg −1 . Lithium metal represents the best alternative anode material to produce high energy density batteries because it possesses the lowest standard potential (E o = −3.04 V versus standard hydrogen electrode) and the highest theoretical capacity (3.860 mAh −1 ) [ 1 ]. Unfortunately, this technology is not ideal and presents several issues such as dendrite growth, instability of lithium metal with the most part of classical organic liquid electrolytes, low coulombic efficiency, poor cyclability, and poor safety due to leakage and high flammability of the liquid electrolyte based on a mixture of carbonate solvents [ 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

High Performance Polymer/Ionic Liquid Thermoplastic Solid Electrolyte Prepared by Solvent Free Processing for Solid State Lithium Metal Batteries

et al. 2018

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A polymer/ionic liquid thermoplastic solid electrolyte based on poly(ethylene oxide) (PEO), modified sepiolite (TPGS-S), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), and 1-Butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14TFSI) ionic liquid is prepared using solvent free extrusion method. Its physical-chemical, electrical, and electrochemical properties are comprehensively studied. The investigated solid electrolyte demonstrates high ionic conductivity together with excellent compatibility with lithium metal electrode. Finally, truly Li-LiFePO4 solid state coin cell with the developed thermoplastic solid electrolyte demonstrates promising electrochemical performance during cycling under 0.2 C/0.5 C protocol at 60 °C.

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Section: Introductionmentioning

confidence: 99%

High Performance Polymer/Ionic Liquid Thermoplastic Solid Electrolyte Prepared by Solvent Free Processing for Solid State Lithium Metal Batteries

et al. 2018

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“…In response to the growing energy demand, over the past decades, lithium takes the hold of world's attention because it possesses huge energy density due to light weight, low electrode potential (−3.04 V vs standard hydrogen electrode), and large theoretical‐specific capacity (3860 mAh g −1 ) . Stuck with the stagnation of traditional lithium‐ion batteries, the future electrochemical high‐energy storage systems rest heavily on the shoulders of postlithium batteries such as Li–S batteries and Li–air batteries .…”

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confidence: 99%

In Situ Solid Electrolyte Interphase from Spray Quenching on Molten Li: A New Way to Construct High‐Performance Lithium‐Metal Anodes

et al. 2018

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In response to the growing energy demand, over the past decades, lithium takes the hold of world's attention because it possesses huge energy density due to light weight, low electrode potential (−3.04 V vs standard hydrogen electrode), and large theoretical-specific capacity (3860 mAh g −1 ). [1][2][3][4] Stuck with the stagnation of traditional lithium-ion batteries, the future Uncontrollable growth of Li dendrites and low utilization of active Li severely hinder its practical application. Construction of an artificial solid electrolyte interphase (SEI) onLi is demonstrated as one of the most effective ways to circumvent the above problems. Herein, a novel spray quenching method is developed in situ to fabricate an organic-inorganic composite SEI on Li metal. By spray quenching molten Li in a modified ether-based solution, a homogeneous and dense SEI consisting of organic matrix embedded with inorganic LiF and Li 3 N nanocrystallines (denoted as OIFN) is constructed on Li metal.Arising from high ionic conductivity and strong mechanical stability, the OIFN can not only effectively minimize the corrosion reaction of Li, but also greatly suppresses the dendrite growth. Accordingly, the OIFN-Li anode presents prominent electrochemical performance with an enhanced Coulombic efficiency of 98.15% for 200 cycles and a small hysteresis of <450 mV even at ultrahigh current density up to 10 mA cm −2 . More importantly, during the full cell test with limited Li source, a high utilization of Li up to 40.5% is achieved for the OIFN-Li anode. The work provides a brand-new route to fabricate advanced SEI on alkali metal for high-performance alkali-metal batteries.

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“…[ 1 ] However, the low coulombic efficiency, short cycling lifespan and potential safety risks caused by the unstable electrode interface hinder its practical application. [ 2 ]…”

Section: Introductionmentioning

confidence: 99%

Li₄Ti₅O₁₂ Coating on Copper Foil as Ion Redistributor Layer for Stable Lithium Metal Anode

Xiong

Yan

Zhu

et al. 2022

Advanced Energy Materials

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energy density. Owing to the ultrahigh theoretical specific capacity (3860 mAh g −1 ) and the lowest electrochemical potential (−3.04 V vs standard hydrogen electrode), lithium metal has become the most promising anode material to support the development of advanced energy storage system. [1] However, the low coulombic efficiency, short cycling lifespan and potential safety risks caused by the unstable electrode interface hinder its practical application. [2] Under practical condition, owing to the side reactions between high reactive lithium metal and electrolyte, a solid electrolyte interface (SEI) forms on lithium metal surface spontaneously, which could passivate the lithium metal to prevent further troublesome side reactions and endure sharp potential drop at the electrode interface. [3] However, the actual SEI is characterized by inhomogeneous composition and low mechanical strength, which results in uneven Li + ions distribution at the electrode interface, leading to non-uniform lithium deposition/stripping behavior, irreversible consumption of active lithium and electrolyte and the growth of lithium dendrites. [4] Therefore, stabilizing the electrode interface to ensure the uniform lithium deposition is of great importance for the practical application of lithium metal anode. [5] Many approaches have been developed in attempts to solve the risky interface problems related to lithium metal anode, which can be divided into 4 aspects: (1) Constructing stable SEI by modifying liquid electrolyte, which mainly includes the application of novel solvent, lithium salt and concentrated electrolyte. [6] Nevertheless, the mechanical strength of the SEI formed in situ is not strong enough to inhibit the lithium dendrite owing to the unaltered heterogeneous structure. Furthermore, under continuous irreversible consumption, the limited additives are not enough to sustain a long stable cycling lifespan. (2) Solid electrolyte is characterized by high mechanical strength and could reduce the safety risk of lithium metal anode greatly by eliminating flammable liquid electrolyte. [7] However, the application of solid electrolyte is still challenged by their low ionic conductivity and poor interface contact with electrode. (3) Employing composite electrode by using conductive materials or three-dimensional current collector has received much attention. It can reduce the local current density via ultrahigh electrode specific surface area to suppress lithium Lithium metal is regarded as the most promising electrode material for the next generation of energy storage devices. However, low coulombic efficiency and short cycle lifespan caused by the unstable electrode interface have hindered its practical application. Constructing artificial coatings on the anode is one of the most effective approaches for remedying this, but the practical effects are still limited due to their poor regulation of Li + ions transport and complex construction engineering. Herein, an "inverse concentration gradient" concept is put forward to im...

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Recent development in lithium metal anodes of liquid-state rechargeable batteries

Cited by 48 publications

References 126 publications

High Performance Polymer/Ionic Liquid Thermoplastic Solid Electrolyte Prepared by Solvent Free Processing for Solid State Lithium Metal Batteries

High Performance Polymer/Ionic Liquid Thermoplastic Solid Electrolyte Prepared by Solvent Free Processing for Solid State Lithium Metal Batteries

In Situ Solid Electrolyte Interphase from Spray Quenching on Molten Li: A New Way to Construct High‐Performance Lithium‐Metal Anodes

Li₄Ti₅O₁₂ Coating on Copper Foil as Ion Redistributor Layer for Stable Lithium Metal Anode

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Recent development in lithium metal anodes of liquid-state rechargeable batteries

Cited by 48 publications

References 126 publications

High Performance Polymer/Ionic Liquid Thermoplastic Solid Electrolyte Prepared by Solvent Free Processing for Solid State Lithium Metal Batteries

High Performance Polymer/Ionic Liquid Thermoplastic Solid Electrolyte Prepared by Solvent Free Processing for Solid State Lithium Metal Batteries

In Situ Solid Electrolyte Interphase from Spray Quenching on Molten Li: A New Way to Construct High‐Performance Lithium‐Metal Anodes

Li4Ti5O12 Coating on Copper Foil as Ion Redistributor Layer for Stable Lithium Metal Anode

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Li₄Ti₅O₁₂ Coating on Copper Foil as Ion Redistributor Layer for Stable Lithium Metal Anode