Dendrite-free lithium deposition by coating a lithiophilic heterogeneous metal layer on lithium metal anode

Guo, Feihu; Wu, Chen; Chen, Hui; Zhong, Faping; Ai, Xinping; Yang, Hanxi; Qian, Jiangfeng

doi:10.1016/j.ensm.2019.06.010

Cited by 161 publications

(97 citation statements)

References 43 publications

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“…The other peaks were attributed to the lattice planes of (200) and (220) of the Cu substrate. X‐ray photoelectron spectroscopy (XPS) pattern is given in Figure g, two peaks at 373.6 and 367.9 eV were attributed to the binding energies of Ag 3d3/2 and Ag 3d5/2, respectively, and the distance between these two peaks was about 5.7 eV, indicating the existence of metallic Ag . The other peaks at 952.0 and 932.1 eV were associated with the binding energies of Cu 2p1/2 and Cu 2p3/2, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Herein, we developed a simple and commercially viable strategy for large‐scale preparation of modified Cu foil with Ag nanoparticles by a green and simple substitution reaction between pure Cu and Ag + . These Ag nanoparticles were uniformly anchored on planar Cu substrate (labeled as Cu‐Ag), which can not only homogenize the electric field and ion distribution on the surface but also be used as the Li metal seeds for inducing the Li deposition due to the prominent affinity of Ag for Li, realizing evenly Li plating . Consequently, even at a very high lithium capacity of 5.0 mAh cm −2 , the Cu‐Ag collector could still ensure the uniform plating morphology.…”

Section: Introductionmentioning

confidence: 99%

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Large‐Scale Modification of Commercial Copper Foil with Lithiophilic Metal Layer for Li Metal Battery

Cui

Zhai

Yang

et al. 2020

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and long cycle life are urgently pursued. [1][2][3][4] However, current lithium-ion batteries (LIBs) have almost reached their theoretical limitation. [5][6][7][8] So, developing novel electrode materials with high energy and power densities as well as long cycle life is of great significance. Li metal electrodes, hailed as "Holy Grail" electrode, show incomparable advantages including high specific capacity (3860 mAh g −1 ) and low electrochemical potential (−3.040 V vs standard hydrogen electrode) and have been considered as the most promising next-generation electrode materials for Li-S, Li-air batteries, and so on. [9][10][11] However, the lithium metal batteries (LMBs) always suffer dendritic Li during the repeated plating/stripping process, which not only causes the formation of lots of "dead Li" and blocks the Li + / electron transportation between the bulk Li and the electrolyte and furtherly results in the low coulombic efficiency (CE) but also is the main culprit in piercing the separator, giving rise to the internal short circuits and finally leading to the serious security risks. [12][13][14] In addition, the unstable solid electrolyte interphase (SEI) is formed repeatedly on the surface of Li metal during the charge-discharge process, which leads to the nonuniform Li ionic flux and further aggravates the growth of dendritic Li as well as depletes the electrolyte. [15][16][17][18] All these disadvantages lead to low CE and poor cyclability and further impede the commercialization of LMBs.In recent years, many attempts have been exerted to eliminate the formation of Li dendrite and enhance the cyclability of LMBs. Fabricating stable intrinsic SEI layer by the liquid electrolyte additives can improve partly the electrochemical performance. [19][20][21][22][23] Similarly, preparing artificial SEI layer with high Young's Modulus on the surface of the Li metal is another common way to suppress the dendrite growth. [24][25][26][27] Modified separator with functional materials for LMBs is also adopted to inhibit the formation of dendritic Li and shows some progress. [28] Solid electrolytes with high Young's modulus have exhibited good resistance to lithium dendrites in previous reports. [29,30] Although some good results are achieved by these strategies, the complicated synthesis process, high cost, great weight or instability during long-term cycle limit their practical applications. More recently, designing 3D collectors with a lithiophilic surface as host for storing Li metal, such as modified 3D Cu foam or Ni foam, shows some progress since large specific area of 3D structure is beneficial to decreasing the local current density and regulating the distribution of electric fieldThe application and development of lithium metal battery are severely restricted by the uncontrolled growth of lithium dendrite and poor cycle stability. Uniform lithium deposition is the core to solve these problems, but it is difficult to be achieved on commercial Cu collectors. In this work, a simple and commercially viable stra...

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Large‐Scale Modification of Commercial Copper Foil with Lithiophilic Metal Layer for Li Metal Battery

Cui

Zhai

Yang

et al. 2020

Small

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“…Moreover, researchers have also developed various kinds of lithium-containing alloys artificial protective layers. The protective lithium alloy layers are generally thin films formed on the Li metal surface via chemical/electrochemical pre-treatment [85,[109][110][111][112][113][114][115][116][117][118][119][120], mechanical press [121,122], magnetron sputtering [60], etc., which are acceptable ionic conductivity for Li migration as well as suppress the dendrite growth via homogenous deposition of lithium [32]. For example, Li group reported a magnetron sputtering method to deposit a thin Al film on lithium surface [60].…”

Section: Artificial Protective Layers For Lithium Alloys Anodesmentioning

confidence: 99%

Li-containing alloys beneficial for stabilizing lithium anode: a review

Dong

Lai

2020

Preprint

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Due to the soaring growth of the electric vehicles and grid energy storage markets, the high-safety and high-energy-density battery storage systems are urgent needed. Lithium metal anode with highest theoretical specific capacity (3860 mA•h•g-1) and the lowest electrochemical potential (-3.04 V vs standard hydrogen electrode) is regarded as the ultimate choice for the high energy density batteries. However, its safety problems as well as the low Coulombic efficiency during the Li plating and stripping processes significantly limit the commercialization of lithium metal batteries. Recently, Li-containing alloys have demonstrated vital roles in inhibiting lithium dendrite growth, controlling interfacial reactions and enhancing the Coulombic efficiency as well as cycle life. Accordingly, in this perspective, the progresses of lithium alloys for robust, stable and dendrite free anode for rechargeable lithium metal batteries are summarized. The challenges and future focus research of lithium-containing alloys in lithium metal batteries are also discussed.

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“…Accompanying this electrodeposition process, some dendrites will be produced at the edge of the cathode plate, and they give rise to relatively low current efficiency in the electrolytic process . Various strategies have been developed to mitigate the negative impact of dendrites . For instance, Wang and co‐workers demonstrated the vital effect of plating residual stress on Li dendrite growth through depositing Li on the surface of 2D wrinkled copper .…”

Section: Introductionmentioning

confidence: 99%

“…5,6 Various strategies have been developed to mitigate the negative impact of dendrites. [7][8][9][10][11] For instance, Wang and co-workers demonstrated the vital effect of plating residual stress on Li dendrite growth through depositing Li on the surface of 2D wrinkled copper. 12 Lu et al reported that the CNT framework as the host material could afford lower Zn nucleation overpotential and homogeneous electric field distributions to prevent the formation of Zn dendrite.…”

Section: Introductionmentioning

confidence: 99%

Controllable constructing alloy dendrites with fractal structure as free‐standing electrode for enhanced oxygen evolution

Zhang

Liu

2020

Int J Energy Res

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Summary The design of non–noble metal binderless electrode for enhanced electrocatalytic oxygen evolution is an unremitting challenge. Herein, we first report the construction of fractal structural alloy electrodes using controllable electrodeposition. Meanwhile, we have explored the regulation and morphology transition of metal dendrites in the electrolytic process. The metal wire‐type “one‐body” electrode prepared in the full‐immersion reactor demonstrates the unique three‐dimensional fractal structure with high branching degree and surface area. Moreover, the compositional turning of metal crystal via element doping is beneficial to improving the conductivity and crystal structure. The Ni and Zn elements are introduced to form Ni‐Fe and Zn‐Fe alloy dendrites, showing a preferable electrochemical catalytic oxygen evolution performance. The as‐prepared Ni‐Fe dendrite demonstrates a lower overpotential about 248 mV (vs RHE) at 10 mA cm−2 and Tafel slope of 55 mV dec−1 in the alkaline condition.

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Dendrite-free lithium deposition by coating a lithiophilic heterogeneous metal layer on lithium metal anode

Cited by 161 publications

References 43 publications

Large‐Scale Modification of Commercial Copper Foil with Lithiophilic Metal Layer for Li Metal Battery

Large‐Scale Modification of Commercial Copper Foil with Lithiophilic Metal Layer for Li Metal Battery

Li-containing alloys beneficial for stabilizing lithium anode: a review

Controllable constructing alloy dendrites with fractal structure as free‐standing electrode for enhanced oxygen evolution

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