scholarly journals Solid–Electrolyte Interphase Evolution of Carbon‐Coated Silicon Nanoparticles for Lithium‐Ion Batteries Monitored by Transmission Electron Microscopy and Impedance Spectroscopy

2015 ◽  
Vol 3 (7) ◽  
pp. 699-708 ◽  
Author(s):  
Kristof Van Havenbergh ◽  
Stuart Turner ◽  
Kris Driesen ◽  
Jean‐Sébastien Bridel ◽  
Gustaaf Van Tendeloo
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Impedance Spectroscopy ◽  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Silicon Nanoparticles ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Transmission Electron ◽  
Carbon Coated

Direct Visualization of Solid Electrolyte Interphase Formation in Lithium-Ion Batteries with In Situ Electrochemical Transmission Electron Microscopy

2014 ◽  
Vol 20 (4) ◽  
pp. 1029-1037 ◽  
Author(s):  
Raymond R. Unocic ◽  
Xiao-Guang Sun ◽  
Robert L. Sacci ◽  
Leslie A. Adamczyk ◽  
Daan Hein Alsem ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Transport Processes ◽  
Self Healing ◽  
Transmission Electron ◽  
Li Ion

AbstractComplex, electrochemically driven transport processes form the basis of electrochemical energy storage devices. The direct imaging of electrochemical processes at high spatial resolution and within their native liquid electrolyte would significantly enhance our understanding of device functionality, but has remained elusive. In this work we use a recently developed liquid cell for in situ electrochemical transmission electron microscopy to obtain insight into the electrolyte decomposition mechanisms and kinetics in lithium-ion (Li-ion) batteries by characterizing the dynamics of solid electrolyte interphase (SEI) formation and evolution. Here we are able to visualize the detailed structure of the SEI that forms locally at the electrode/electrolyte interface during lithium intercalation into natural graphite from an organic Li-ion battery electrolyte. We quantify the SEI growth kinetics and observe the dynamic self-healing nature of the SEI with changes in cell potential.

In Situ Transmission Electron Microscopy Probing of Native Oxide and Artificial Layers on Silicon Nanoparticles for Lithium Ion Batteries

ACS Nano ◽  
2014 ◽  
Vol 8 (11) ◽  
pp. 11816-11823 ◽  
Author(s):  
Yang He ◽  
Daniela Molina Piper ◽  
Meng Gu ◽  
Jonathan J. Travis ◽  
Steven M. George ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Lithium Ion Batteries ◽  
Silicon Nanoparticles ◽  
Lithium Ion ◽  
Native Oxide ◽  
Transmission Electron

scholarly journals Probing the Na metal solid electrolyte interphase via cryo-transmission electron microscopy

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Bing Han ◽  
Yucheng Zou ◽  
Zhen Zhang ◽  
Xuming Yang ◽  
Xiaobo Shi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Metal Electrode ◽  
Liquid Electrolyte ◽  
Battery Materials ◽  
Cryogenic Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Fluoroethylene Carbonate

AbstractCryogenic transmission electron microscopy (cryo-TEM) is a valuable tool recently proposed to investigate battery electrodes. Despite being employed for Li-based battery materials, cryo-TEM measurements for Na-based electrochemical energy storage systems are not commonly reported. In particular, elucidating the chemical and morphological behavior of the Na-metal electrode in contact with a non-aqueous liquid electrolyte solution could provide useful insights that may lead to a better understanding of metal cells during operation. Here, using cryo-TEM, we investigate the effect of fluoroethylene carbonate (FEC) additive on the solid electrolyte interphase (SEI) structure of a Na-metal electrode. Without FEC, the NaPF6-containing carbonate-based electrolyte reacts with the metal electrode to produce an unstable SEI, rich in Na2CO3 and Na3PO4, which constantly consumes the sodium reservoir of the cell during cycling. When FEC is used, the Na-metal electrode forms a multilayer SEI structure comprising an outer NaF-rich amorphous phase and an inner Na3PO4 phase. This layered structure stabilizes the SEI and prevents further reactions between the electrolyte and the Na metal.

In situ transmission electron microscopy observations of rechargeable lithium ion batteries

Nano Energy ◽  
2019 ◽  
Vol 56 ◽  
pp. 619-640 ◽  
Author(s):  
Justin Woods ◽  
Nabraj Bhattarai ◽  
Puskar Chapagain ◽  
Yuehai Yang ◽  
Suman Neupane
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Transmission Electron

A novel tin hybrid nano-composite with double nets of carbon matrixes as a stable anode in lithium ion batteries

2017 ◽  
Vol 53 (98) ◽  
pp. 13125-13128 ◽  
Author(s):  
Jinyun Liu ◽  
Xirong Lin ◽  
Xi Chen ◽  
Zihan Shen ◽  
Miaofang Chi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Nano Composite ◽  
Transmission Electron

A novel hybrid anode consisting of tin encapsulated by double nets is presented, which is demonstrated via in situ transmission electron microscopy.

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