Mapping the Distribution and the Microstructural Dimensions of Metallic Lithium Deposits in an Anode-Free Battery by In Situ EPR Imaging

2021 ◽  
Author(s):  
Fushan Geng ◽  
Qi Yang ◽  
Chao Li ◽  
Ming Shen ◽  
Qun Chen ◽  
...  
Keyword(s):  
Metallic Lithium

Trace fluorinated-carbon-nanotube-induced lithium dendrite elimination for high-performance lithium–oxygen cells

Nanoscale ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 3424-3434 ◽  
Author(s):  
Hao Cheng ◽  
Yangjun Mao ◽  
Yunhao Lu ◽  
Peng Zhang ◽  
Jian Xie ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Dendrite Growth ◽  
Metallic Lithium ◽  
Lithium Dendrite ◽  
Fluorinated Carbon

Trace fluorinated-CNT-modified metallic lithium enables in situ LiF-rich SEI formation and effectively eliminates lithium dendrite growth.

In situ NMR observation of the formation of metallic lithium microstructures in lithium batteries

2010 ◽  
Vol 9 (6) ◽  
pp. 504-510 ◽  
Author(s):  
Rangeet Bhattacharyya ◽  
Baris Key ◽  
Hailong Chen ◽  
Adam S. Best ◽  
Anthony F. Hollenkamp ◽  
...  
Keyword(s):  
Lithium Batteries ◽  
Metallic Lithium ◽  
In Situ Nmr

scholarly journals Monitoring metallic sub-micrometric lithium structures in Li-ion batteries by in situ electron paramagnetic resonance correlated spectroscopy and imaging

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Charles-Emmanuel Dutoit ◽  
Mingxue Tang ◽  
Didier Gourier ◽  
Jean-Marie Tarascon ◽  
Hervé Vezin ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Resonance Field ◽  
Shape Resonance ◽  
Paramagnetic Resonance ◽  
In Situ Techniques ◽  
Metallic Lithium ◽  
Opposite Electrode ◽  
Solid State Batteries ◽  
Electron Paramagnetic

AbstractMonitoring the formation of dendrites or filaments of lithium is of paramount importance for Li-based battery technologies, hence the intense activities in designing in situ techniques to visualize their growth. Herein we report the benefit of correlating in situ electron paramagnetic resonance (EPR) spectroscopy and EPR imaging to analyze the morphology and location of metallic lithium in a symmetric Li/LiPF6/Li electrochemical cell during polarization. We exploit the variations in shape, resonance field and amplitude of the EPR spectra to follow, operando, the nucleation of sub-micrometric Li particles (narrow and symmetrical signal) that conjointly occurs with the fragmentation of bulk Li on the opposite electrode (asymmetrical signal). Moreover, in situ EPR correlated spectroscopy and imaging (spectral-spatial EPR imaging) allows the identification (spectral) and localization (spatial) of the sub-micrometric Li particles created by plating (deposition) or stripping (altered bulk Li surface). We finally demonstrate the possibility to visualize, via in situ EPR imaging, dendrites formed through the separator in the whole cell. Such a technique could be of great help in mastering the Li-electrolyte interface issues that plague the development of solid-state batteries.

scholarly journals In Situ Electron Paramagnetic Resonance Correlated Spectroscopy and Imaging: A Tool for Lithium-Ion Batteries to Investigate Metallic Lithium Sub-Micrometric Structures Created by Plating and Stripping

2020 ◽  
Author(s):  
Charles-Emmanuel Dutoit ◽  
Mingxue Tang ◽  
Didier Gourier ◽  
Jean-Marie Tarascon ◽  
Hervé Vezin ◽  
...  
Keyword(s):  
Resonance Field ◽  
Lithium Ion ◽  
Shape Resonance ◽  
Paramagnetic Resonance ◽  
In Situ Techniques ◽  
Metallic Lithium ◽  
Opposite Electrode ◽  
Solid State Batteries ◽  
Electron Paramagnetic

<div>Monitoring the formation of dendrites or filaments of lithium is of paramount importance</div><div>for Li-based battery technologies, hence the intense activities in designing in situ techniques</div><div>to visualize their growth. Herein we report the benefit of correlating in situ electron para4 magnetic resonance (EPR) spectroscopy and EPR imaging to analyze the morphology and</div><div>location of metallic lithium in a symmetric Li/LiPF6/Li electrochemical cell during polariza6 tion. We exploit the variations in shape, resonance field and amplitude of the EPR spectra</div><div>to follow, operando, the nucleation of sub-micrometric Li particles (narrow and symmetrical</div><div>signal) that conjointly occurs with the fragmentation of bulk Li on the opposite electrode</div><div>(asymmetrical signal). Moreover, in situ EPR correlated spectroscopy and imaging (spectral10 spatial EPR imaging) allows the identification (spectral) and localization (spatial) of the sub11 micrometric Li particles created by plating (deposition) or stripping (altered bulk Li surface).</div><div>We finally demonstrate the possibility to visualize, via in situ EPR imaging, dendrites formed</div><div>through the separator in the whole cell. Such a technique could be of great help in mastering</div><div>the Li-electrolyte interface issues that plague the development of solid-state batteries.</div>

scholarly journals In Situ Electron Paramagnetic Resonance Correlated Spectroscopy and Imaging: A Tool for Lithium-Ion Batteries to Investigate Metallic Lithium Sub-Micrometric Structures Created by Plating and Stripping

2020 ◽  
Author(s):  
Charles-Emmanuel Dutoit ◽  
Mingxue Tang ◽  
Didier Gourier ◽  
Jean-Marie Tarascon ◽  
Hervé Vezin ◽  
...  
Keyword(s):  
Resonance Field ◽  
Lithium Ion ◽  
Shape Resonance ◽  
Paramagnetic Resonance ◽  
In Situ Techniques ◽  
Metallic Lithium ◽  
Opposite Electrode ◽  
Solid State Batteries ◽  
Electron Paramagnetic

<div>Monitoring the formation of dendrites or filaments of lithium is of paramount importance</div><div>for Li-based battery technologies, hence the intense activities in designing in situ techniques</div><div>to visualize their growth. Herein we report the benefit of correlating in situ electron para4 magnetic resonance (EPR) spectroscopy and EPR imaging to analyze the morphology and</div><div>location of metallic lithium in a symmetric Li/LiPF6/Li electrochemical cell during polariza6 tion. We exploit the variations in shape, resonance field and amplitude of the EPR spectra</div><div>to follow, operando, the nucleation of sub-micrometric Li particles (narrow and symmetrical</div><div>signal) that conjointly occurs with the fragmentation of bulk Li on the opposite electrode</div><div>(asymmetrical signal). Moreover, in situ EPR correlated spectroscopy and imaging (spectral10 spatial EPR imaging) allows the identification (spectral) and localization (spatial) of the sub11 micrometric Li particles created by plating (deposition) or stripping (altered bulk Li surface).</div><div>We finally demonstrate the possibility to visualize, via in situ EPR imaging, dendrites formed</div><div>through the separator in the whole cell. Such a technique could be of great help in mastering</div><div>the Li-electrolyte interface issues that plague the development of solid-state batteries.</div>

In situ generation of soft-tough asymmetric composite electrolyte for dendrite-free lithium metal battery

2021 ◽  
Author(s):  
Ningyue Zhang ◽  
Guoxu Wang ◽  
Ming Feng ◽  
Li-Zhen Fan
Keyword(s):  
High Energy ◽  
Lithium Metal ◽  
Energy Storage Devices ◽  
Composite Electrolyte ◽  
Storage Devices ◽  
Metallic Lithium ◽  
Solid State Batteries ◽  
In Situ Generation ◽  
Power Densities

Solid-state batteries (SSBs) with metallic lithium (Li) anodes are regarded as the next-generation high energy and power densities energy storage devices. However, the issues of Li dendrite growth and the...

scholarly journals Rhombohedral Li1+xYxZr2-x(PO4)3 Solid Electrolyte Prepared by Hot-Pressing for All-Solid-State Li-Metal Batteries

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1719 ◽  
Author(s):  
Qinghui Li ◽  
Chang Xu ◽  
Bing Huang ◽  
Xin Yin
Keyword(s):  
Solid State ◽  
Hot Pressing ◽  
Rhombohedral Phase ◽  
Ion Conductivity ◽  
Lithium Metal ◽  
Interfacial Resistance ◽  
Metallic Lithium ◽  
Solid State Batteries ◽  
Li Ion

NASICON-type solid electrolytes with excellent stability in moisture are promising in all-solid-state batteries and redox flow batteries. However, NASIOCN LiZr2(PO4)3 (LZP), which is more stable with lithium metal than the commercial Li1.3Al0.3Ti1.7(PO4)3, exhibits a low Li-ion conductivity of 10−6 S cm−1 because the fast conducting rhombohedral phase only exists above 50 °C. In this paper, the high-ionic conductive rhombohedral phase is stabilized by Y3+ doping at room temperature, and the hot-pressing technique is employed to further improve the density of the pellet. The dense Li1.1Y0.1Zr1.9(PO4)3 pellet prepared by hot-pressing shows a high Li-ion conductivity of 9 × 10−5 S cm−1, which is two orders of magnitude higher than that of LiZr2(PO4)3. The in-situ formed Li3P layer on the surface of Li1.1Y0.1Zr1.9(PO4)3 after contact with the lithium metal increases the wettability of the pellet by the metallic lithium anode. Moreover, the Li1.1Y0.1Zr1.9(PO4)3 pellet shows a relatively small interfacial resistance in symmetric Li/Li and all-solid-state Li-metal cells, providing these cells a small overpotential and a long cycling life.

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