Facile Generation of Polymer–Alloy Hybrid Layers for Dendrite‐Free Lithium‐Metal Anodes with Improved Moisture Stability

Jiang, Zhipeng; Liu, Jin; Han, Zhilong; Hu, Wei; Zeng, Ziqi; Sun, Yuhui; Xie, Jia

doi:10.1002/anie.201905712

Cited by 177 publications

(114 citation statements)

References 37 publications

(50 reference statements)

Supporting

Mentioning

113

Contrasting

Order By: Relevance

“…Meanwhile, the electronically insulating LiCl by product played an essential role in further preventing the reduction of the Li + on the surface ( Figure a). The superior humid air‐stability of the composite alloy‐protected Li was demonstrated by Liao et al [ 138b ] and Jiang et al, [ 143 ] where, however, the unique effect of the alloy component should be further understood. A novel concept of mixed conductor interphase (MCI) to protect Li metal anode was asserted by Yan et al [ 87 ] By pretreating the Li metal surface with a copper–fluoride based solution at room temperature, an armored LiF/Cu‐based protective MCI film was achieved through the facile displacement chemistry.…”

Section: Regulating a Desirable Interfacementioning

confidence: 99%

Toward Critical Electrode/Electrolyte Interfaces in Rechargeable Batteries

Yan

Xiao

et al. 2020

Adv Funct Materials

284

234

View full text Add to dashboard Cite

The electrode/electrolyte interface plays a critical role in stabilizing the cycling performance and prolonging the service life of rechargeable batteries to meet the sustainable energy requirements of the mobile society. The understanding of interfaces is still at the preliminary stage due to the limited research techniques and variable properties with time and potential. Herein, the latest developments focused on the interfaces in rechargeable systems including the cathode electrolyte interphase (CEI) and solid electrolyte interphase (SEI) are reviewed. The possible formation mechanisms of the electrode/electrolyte interface are discussed, followed by the introduction of two key influencing factors, specific adsorption and solvated coordinate structure, which will dominate the formation of the interface. Finally, the structure and chemical composition of the interface as well as the possible transport mechanism of lithium ions in the interface and the strategies to regulate the pathway through the interface are presented in detail. This work sheds light on the fundamental understanding of the interface and provides rational scientific principles in designing the electrode/electrolyte interface and inspires the rational design of long‐term cycling rechargeable batteries.

show abstract

Section: Regulating a Desirable Interfacementioning

confidence: 99%

Toward Critical Electrode/Electrolyte Interfaces in Rechargeable Batteries

Yan

Xiao

et al. 2020

Adv Funct Materials

284

234

View full text Add to dashboard Cite

show abstract

“…Moreover, alternative materials based on composite Li alloys, such as Li x Si and Li 13 In 3 , have attracted increasing attention owing to the strong bonding in Li alloys . Li is inclined to nucleate on the alloy sites and deposit evenly in the subsequent process ascribed to the admirable Li metal wettability.…”

Section: Host Materialsmentioning

confidence: 99%

A Review of Composite Lithium Metal Anode for Practical Applications

Shi

Zhang

Shen

et al. 2019

Adv Materials Technologies

127

View full text Add to dashboard Cite

potential (−3.040 V vs standard hydrogen electrode). [8][9][10] Objectively, the energy density of Li batteries should take all parts of a battery into considerations instead of only anode. In order to achieve high-energydensity Li batteries, practical conditions including limited Li (<10 mAh cm −2 ), low negative/positive capacity (N/P) ratio (<3), and lean electrolyte are necessary. [11,12] In addition, fast charge is imperative with the popularization of portable electronics and electrical vehicles. [13] Consequently, high charge current density (>3 mA cm −2 ) is a confronted issue.Nowadays, the practical applications of Li batteries are still hindered by the formation of Li dendrites, rapid pulverizations of Li metal, and volume fluctuation. [14][15][16] Tremendous efforts have been devoted to disclosing the mechanism of Li plating/stripping and developing strategies to regulate its behaviors thus extending the lifespan of Li batteries during the past half century, including electrolyte formulations, [17][18][19][20][21][22][23][24][25][26][27] interfacial modifications, [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] solid-state electrolytes, [45][46][47][48][49][50][51][52][53][54][55] composite anodes, [56][57][58][59][60][61][62][63] and so on. [64] Thereinto, composite Li anode emerges as a promising strategy to regulate Li plating/stripping behaviors and promote the advances of Li batteries.Generally, a composite Li anode is composed of a 3D host and fresh Li metal. The 3D host is endowed with the unique surface chemistry and interconnecting structure. [65] The superiorities contributed by composite Li anode mainly include:(1) improving electronic conductivity, such as decreasing areal current density and avoiding the generation of "dead Li." Conductive hosts with high specific surface area, such as carbon-based and metal-based hosts, can decrease areal current density to prolong the time for depletion of ion at the anode surface to induce dendritic Li according to Sand's time model. [66] Therefore, the formation of Li dendrites will be effectively inhibited at low areal current density and the cyclability can be improved effectively.(2) Homogenizing Li-ion flux over the surface of Li metal. The distribution of Li ions over the surface of Li anode impacts the subsequent Li plating/stripping behaviors significantly. Uniform Li plating/ stripping can be improved by regulating the interactions between lithiophilic sites on 3D host surface, such as polar functional groups, [67,68] and Li ion to homogenize Li-ion flux. [69] (3) Maintaining dimensional stability of anode. 3D hosts can confine plating Li in the inside pores to avoid the Lithium (Li) metal is considered as a promising anode candidate for nextgeneration batteries owing to its extremely high specific capacity and low reduction potential. However, Li metal anode is still hindered by uncontrolled Li dendrites and extreme volume fluctuation. Composite Li metal anode emerges as an attractive strategy to suppress Li dendrites and ...

show abstract

“…Therefore, the mechanical properties of the layer should also be considered as the layer material must be able to withstand the stress fluctuations generated by the plating and stripping process. To better accommodate the volume expansion, one strategy is to combine inorganic coating materials with various polymers to form a composite coating with increased elasticity 59,60 . Alternatively, the interfacial coating can be combined with a 3D porous Li-host structure to alleviate the volume changes during Li plating and stripping 20 .…”

Section: Desirable Features Of Coatingsmentioning

confidence: 99%

A Perspective on interfacial engineering of lithium metal anodes and beyond

Yan

Whang²,

Wei

et al. 2020

Applied Physics Letters

View full text Add to dashboard Cite

This perspective reviews interfacial engineering of lithium metal anodes. Critical issues and open scientific questions related to coatings on the lithium metal anode are discussed. Essential features for ideal coatings, especially those that can potentially enable lithium plating underneath the coating, are highlighted. While most existing approaches use kinetic control to regulate coating thickness, here we offer a new perspective on thermodynamically-controlled interfacial engineering, focusing on spontaneously-formed 2D interfacial phases (also known as "complexions"). This approach has been applied to other battery systems but has yet to be realized for the lithium metal anodes.

show abstract

Facile Generation of Polymer–Alloy Hybrid Layers for Dendrite‐Free Lithium‐Metal Anodes with Improved Moisture Stability

Cited by 177 publications

References 37 publications

Toward Critical Electrode/Electrolyte Interfaces in Rechargeable Batteries

Toward Critical Electrode/Electrolyte Interfaces in Rechargeable Batteries

A Review of Composite Lithium Metal Anode for Practical Applications

A Perspective on interfacial engineering of lithium metal anodes and beyond

Contact Info

Product

Resources

About