Surpassing lithium metal rechargeable batteries with self-supporting Li–Sn–Sb foil anode

Xu, Hui; Li, Sa; Chen, Xinlong; Zhang, Can; Tang, Zhuoqun; Fan, Hao; Yu, Yue; Liu, Wenjian; Liang, Na; Huang, Yunhui; Li, Ju

doi:10.1016/j.nanoen.2020.104815

Cited by 28 publications

(21 citation statements)

References 47 publications

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“…prepared a Li–Sb–Sn composite anode by metallurgically alloying 5 wt%Sb‐95 wt%Sn with Li foil, which shows various advantages such as less electrolyte decomposition, smaller volume expansion, and nonflammability. [ 171 ] The theoretical calculations and experimental results indicate that the existence of Sb significantly reduces the porosity and long cracking damage, granting the LCO/Li–Sb–Sn pouch cell a high initial volumetric energy density of 1073 Wg L −1 and an energy density of 909 Wh L −1 after 20 cycles. Furthermore, Cao et al.…”

Section: Current Strategies To Circumvent the Challenges Of Lithium Mmentioning

confidence: 99%

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Qin

Holguin

Mohammadiroudbari

et al. 2021

Adv Funct Materials

136

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Lithium metal is the “holy grail” anode for next‐generation high‐energy rechargeable batteries due to its high capacity and lowest redox potential among all reported anodes. However, the practical application of lithium metal batteries (LMBs) is hindered by safety concerns arising from uncontrollable Li dendrite growth and infinite volume change during the lithium plating and stripping process. The formation of stable solid electrolyte interphase (SEI) and the construction of robust 3D porous current collectors are effective approaches to overcoming the challenges of Li metal anode and promoting the practical application of LMBs. In this review, four strategies in structure and electrolyte design for high‐performance Li metal anode, including surface coating, porous current collector, liquid electrolyte, and solid‐state electrolyte are summarized. The challenges, opportunities, perspectives on future directions, and outlook for practical applications of Li metal anode, are also discussed.

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Section: Current Strategies To Circumvent the Challenges Of Lithium Mmentioning

confidence: 99%

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Qin

Holguin

Mohammadiroudbari

et al. 2021

Adv Funct Materials

136

View full text Add to dashboard Cite

show abstract

“…Inherently, the lattice mismatch between the traditional current collectors and lithium metals causes a huge interfacial energy barrier for lithium‐ion transmission, resulting in excessive deposition overpotential, which is harmful to plating metallic lithium. [ 66 ] In addition, the higher nucleation barrier will lead to forming massive dead lithium. Stabilizing lithium metal deposition by regulating the interface properties on the current collector is considered another feasible option.…”

Section: The Substrate Designmentioning

confidence: 99%

Challenges, Strategies, and Prospects of the Anode‐Free Lithium Metal Batteries

Shao

Tang

Zhang

et al. 2022

Adv Energy and Sustain Res

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The anode‐free lithium metal batteries (AF‐LMB), eliminating the use of host anode, can exploit the full potential of the lithium‐containing cathode system in terms of the highest retrievable gravimetric/volumetric energy densities, simplified processing of the anode coating, as well as the reduced cost of cell production and maintenance. However, the issues of interfacial contact resistance, curtailed ion pathway, as well as the dead lithium formation coherently lead to the unsatisfactory cation utilization upon repetitive cycling, which impairs the performance endurance of the practical relevance. Hitherto, a plethora of optimization strategies for the electrolyte and deposition substrate are proposed to extend the cell lifespan. Most of the methods, however, are still based on empirical attempts and lack of systematic diagnosis tools to elucidate the interplay between the structural evolution of the cathode and Li deposition behavior. Herein, the recent research process is summarized and the current development dilemma from multiple perspectives is probed, aiming to highlight the key features of the system that dedicate the cycling endurance. In addition, prospects of the operando characterizations that can be used to accelerate the mechanism elucidation of the AF‐LMB configuration are systematically commented.

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“…[ 6,7 ] However, direct MP on well‐annealed, commercial Al foils does not give as good results as other metal foils like Sn foils. [ 8,9 ]…”

Section: Introductionmentioning

confidence: 99%

Air‐Stable Li_xAl Foil as Free‐Standing Electrode with Improved Electrochemical Ductility by Shot‐Peening Treatment

Fan

et al. 2021

Adv Funct Materials

Self Cite

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A self-supporting Al foil anode should be attractive to the lithium-ion battery (LIB) industry. However, initial attempts at using thin Al foil directly as a LIB anode ends up with extremely large initial Coulombic inefficiency and gross mechanical failures in just a few cycles. This feels incongruent with the expectation that face-centered cubic Al should have good ductility. In this study, the discrepancy between "electrochemical ductility" and "mechanical ductility" is explained. Unlike "mechanical ductility" based on dislocation slip inside each grain, here it is proposed that "electrochemical ductility" of such high-capacity alloy foil electrodes should be related to grain boundaries (GB) activities. It is found that after reducing the grain size D > 50 µm of the starting Al foil by shot-peening treatment, higher GB density (e.g., smaller initial grain size D < 20 µm) greatly alleviates the initial porosity damage after the roll-to-roll mechanical prelithiation and significantly improves electrochemical ductility thereafter, with enhanced cycle life in various kinds of full cells. Li x Al foil also demonstrates surprising air stability with negligible capacity loss even after several hours' exposure to air. Such thin prelithiated metallic foil anodes are therefore highly competitive against pure Li metal foils.

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Surpassing lithium metal rechargeable batteries with self-supporting Li–Sn–Sb foil anode

Cited by 28 publications

References 47 publications

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Challenges, Strategies, and Prospects of the Anode‐Free Lithium Metal Batteries

Air‐Stable Li_xAl Foil as Free‐Standing Electrode with Improved Electrochemical Ductility by Shot‐Peening Treatment

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Surpassing lithium metal rechargeable batteries with self-supporting Li–Sn–Sb foil anode

Cited by 28 publications

References 47 publications

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Strategies in Structure and Electrolyte Design for High‐Performance Lithium Metal Batteries

Challenges, Strategies, and Prospects of the Anode‐Free Lithium Metal Batteries

Air‐Stable LixAl Foil as Free‐Standing Electrode with Improved Electrochemical Ductility by Shot‐Peening Treatment

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Product

Resources

About

Air‐Stable Li_xAl Foil as Free‐Standing Electrode with Improved Electrochemical Ductility by Shot‐Peening Treatment