Stabilization of lithium anode with ceramic-rich interlayer for all solid-state batteries

Delaporte, Nicolas; Lajoie, Gilles; Darwiche, Ali; Vigeant, Marie-Josée; Collin-Martin, Steve; Clément, Daniel

doi:10.1039/d2ra01856j

Cited by 4 publications

(3 citation statements)

References 46 publications

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“…Coin‐cells were assembled with a LFP cathode (the same described in the Experimental section), a self‐standing PEO‐based solid polymer electrolyte without plasticizer and the bare or modified lithium anodes. The preparation of the SPE as well as the coin‐cells assembly is well explained in a recent study [59] . LiZn‐protected Li metal electrodes with various Zn thicknesses from 8 to 114 nm were prepared.…”

Section: Resultsmentioning

confidence: 99%

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High Performance Lithium Metal Anode with a Nanolayer of LiZn Alloy for All‐Solid‐State Batteries

Delaporte

Péréa

Collin-Martin

et al. 2022

Batteries & Supercaps

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All‐solid‐state batteries (ASSB) require stable and safe lithium (Li) metal anode, which needs surface preparation to increase lithium diffusion and impede the formation of dendrites. In this work, the formation of a thin LiZn layer on lithium metal using sputter deposition is reported. This method was selected due to the absence of solvents and by‐products generated during the modification, for its rapidity and because the formation of the alloy is performed in a clean and controlled atmosphere. Zinc has been chosen for its low cost and high Li+ ion diffusion coefficient of the corresponding LiZn alloy that is 1000 times higher than Li. Different parameters for the Zn deposition were investigated such as the distance between the Zn target and Li foil, the effect of substrate tilt and the direct current applied to the target. Electrochemical performance of LiFePO4/solid polymer electrolyte/Li ASSB demonstrated the superiority of the LiZn anodes and the clear influence of deposition parameters on the durability and performance at high C‐rates. Scanning electron microscopy images of the cross‐sectional view of LFP/SPE/Li stackings extracted from pouch cells after cycling showed an evident migration of Zn into the bulk Li metal anode as well as the formation of AlZn nanoparticles.

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Section: Resultsmentioning

confidence: 99%

“…The preparation of the SPE as well as the coin-cells assembly is well explained in a recent study. [59] LiZn-protected Li metal electrodes with various Zn thicknesses from 8 to 114 nm were prepared. The galvanostatic cycling at C/3 at 50 °C for these batteries is presented in the Figure S2.…”

Section: Optimal Lizn Coating Thicknessmentioning

confidence: 99%

High Performance Lithium Metal Anode with a Nanolayer of LiZn Alloy for All‐Solid‐State Batteries

Delaporte

Péréa

Collin-Martin

et al. 2022

Batteries & Supercaps

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“…However, an excessive ceramic content can also deteriorate the self-supporting and film-forming ability of polymer-inceramic electrolytes, leading to the risk of cracking or brittle fracture [17]. Several approaches have been proposed to overcome the difficulties encountered in fabricating polymerin-ceramic electrolyte films, such as creating sandwich structures with better film-forming properties [2,24,25], employing high-strength polymer films as internal support structures [26][27][28], or applying polymer-coated pressed electrolyte pellets [29][30][31][32][33]. However, these approaches have drawbacks such as complicated fabrication and high costs.…”

Section: Introductionmentioning

confidence: 99%

Enhancing mechanical properties of composite solid electrolyte by ultra-high molecular weight polymers

Deng,

He,

Liu

et al. 2024

Nanotechnology

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Composite solid electrolytes combining the advantages of inorganic and polymer electrolytes are considered as one of the promising candidates for solid-state lithium metal batteries. Compared with ceramic-in-polymer electrolyte, polymer-in-ceramic electrolyte displays excellent mechanical strength to inhibit lithium dendrite. However, polymer-in-ceramic electrolyte faces the challenges of lack of flexibility and severely blocked Li+ transport. In this study, we prepared polymer-in-ceramic film utilizing ultra-high molecular weight polymers and ceramic particles to combine flexibility and mechanical strength. Meanwhile, the ionic conductivity of polymer-in-ceramic electrolytes was improved by adding excess lithium salt in polymer matrix to form polymer-in-salt structure. The obtained film shows high stiffness (10.5 MPa), acceptable ionic conductivity (0.18 mS cm-1) and high flexibility. As a result, the corresponding lithium symmetric cell stably cycles over 800 h and the corresponding LiFePO4 cell provides a discharge capacity of 147.7 mAh g-1 at 0.1 C without obvious capacity decay after 145 cycles.

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Adsorbents for lithium extraction from salt lake brine with high magnesium/lithium ratio: From structure-performance relationship to industrial applications

Zhang,

et al. 2024

Desalination

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Stabilization of lithium anode with ceramic-rich interlayer for all solid-state batteries

Abstract: Significant electrochemical performance improvement of symmetric Li/Li polymer cells at C/4 by using ceramic-rich coated lithium anodes.

Cited by 4 publications

References 46 publications

High Performance Lithium Metal Anode with a Nanolayer of LiZn Alloy for All‐Solid‐State Batteries

High Performance Lithium Metal Anode with a Nanolayer of LiZn Alloy for All‐Solid‐State Batteries

Enhancing mechanical properties of composite solid electrolyte by ultra-high molecular weight polymers

Adsorbents for lithium extraction from salt lake brine with high magnesium/lithium ratio: From structure-performance relationship to industrial applications

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