Inhibition of lithium dendrite growth by forming rich polyethylene oxide-like species in a solid-electrolyte interphase in a polysulfide/carbonate electrolyte

2018 ◽  
Vol 6 (35) ◽  
pp. 16818-16823 ◽  
Author(s):  
JunNian Zhao ◽  
HaiLong Yu ◽  
LiuBin Ben ◽  
YuanJie Zhan ◽  
YiDa Wu ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Polyethylene Oxide ◽  
Solid Electrolyte Interphase ◽  
Dendrite Growth ◽  
Lithium Dendrite ◽  
Polysulfide Ions

Polyethylene oxide-like polymers form in solid-electrolyte interphase films with the addition of polysulfide ions into a carbonate electrolyte.

K+ Reduces Lithium Dendrite Growth by Forming a Thin, Less-Resistive Solid Electrolyte Interphase

2016 ◽  
Vol 1 (2) ◽  
pp. 414-419 ◽  
Author(s):  
Sean M. Wood ◽  
Codey H. Pham ◽  
Rodrigo Rodriguez ◽  
Sindhu S. Nathan ◽  
Andrei D. Dolocan ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Dendrite Growth ◽  
Lithium Dendrite

scholarly journals Fluorinated hybrid solid-electrolyte-interphase for dendrite-free lithium deposition

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Rajesh Pathak ◽  
Ke Chen ◽  
Ashim Gurung ◽  
Khan Mamun Reza ◽  
Behzad Bahrami ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Dendrite Growth ◽  
Alloy Formation ◽  
Lithium Metal ◽  
Practical Applications ◽  
Lithium Alloy ◽  
Lithium Dendrite

AbstractLithium metal anodes have attracted extensive attention owing to their high theoretical specific capacity. However, the notorious reactivity of lithium prevents their practical applications, as evidenced by the undesired lithium dendrite growth and unstable solid electrolyte interphase formation. Here, we develop a facile, cost-effective and one-step approach to create an artificial lithium metal/electrolyte interphase by treating the lithium anode with a tin-containing electrolyte. As a result, an artificial solid electrolyte interphase composed of lithium fluoride, tin, and the tin-lithium alloy is formed, which not only ensures fast lithium-ion diffusion and suppresses lithium dendrite growth but also brings a synergistic effect of storing lithium via a reversible tin-lithium alloy formation and enabling lithium plating underneath it. With such an artificial solid electrolyte interphase, lithium symmetrical cells show outstanding plating/stripping cycles, and the full cell exhibits remarkably better cycling stability and capacity retention as well as capacity utilization at high rates compared to bare lithium.

The role of the solid electrolyte interphase layer in preventing Li dendrite growth in solid-state batteries

2018 ◽  
Vol 11 (7) ◽  
pp. 1803-1810 ◽  
Author(s):  
Bingbin Wu ◽  
Shanyu Wang ◽  
Joshua Lochala ◽  
David Desrochers ◽  
Bo Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Dendrite Growth ◽  
Interphase Layer ◽  
Sei Layer ◽  
Solid State Batteries

The fundamental role of the solid electrolyte interphase (SEI) layer in preventing dendritic Li growth has been investigated in solid-state batteries.

scholarly journals In situ observation of cracking and self-healing of solid electrolyte interphases during lithium deposition

2020 ◽  
Author(s):  
Tingting Yang ◽  
Hui Li ◽  
Yongfu Tang ◽  
Jingzhao Chen ◽  
Hongjun Ye ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Dendrite Growth ◽  
In Situ Observation ◽  
Self Healing ◽  
Directional Growth ◽  
Transmission Electron ◽  
In Situ Observations ◽  
Li Batteries

Abstract The growth of lithium (Li) whiskers is detrimental to Li batteries. However, it remains a challenge to directly track Li whisker growth. Here we report in situ observations of electrochemically induced Li deposition under a CO2 atmosphere inside an environmental transmission electron microscope. We find that the morphology of individual Li deposits is strongly influenced by the competing processes of cracking and self-healing of the solid electrolyte interphase (SEI). When cracking overwhelms self-healing, the directional growth of Li whiskers predominates. In contrast, when self-healing dominates over cracking, the isotropic growth of round Li particles prevails. The Li deposition rate and SEI constituent can be tuned to control the Li morphologies. We reveal a new “weak-spot” mode of Li dendrite growth, which is attributed to the operation of the Bardeen-Herring growth mechanism in the whisker’s cross section. This work has implications for the control of Li dendrite growth in Li batteries.

The effect of local lithium surface chemistry and topography on solid electrolyte interphase composition and dendrite nucleation

2019 ◽  
Vol 7 (24) ◽  
pp. 14882-14894 ◽  
Author(s):  
Melissa L. Meyerson ◽  
Jonathan K. Sheavly ◽  
Andrei Dolocan ◽  
Monroe P. Griffin ◽  
Anish H. Pandit ◽  
...  
Keyword(s):  
High Resolution ◽  
Surface Chemistry ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Dendrite Growth ◽  
Lithium Deposition ◽  
High Resolution Analysis ◽  
Resolution Analysis

High resolution analysis shows localized organic-rich impurities in the native Li surface that promote preferential lithium deposition, leading to dendrite growth.

Stable lithium metal anodes enabled by inorganic/organic double-layered alloy and polymer coating

2019 ◽  
Vol 7 (44) ◽  
pp. 25369-25376 ◽  
Author(s):  
Yuanjun Zhang ◽  
Guanyao Wang ◽  
Liang Tang ◽  
Jiajie Wu ◽  
Bingkun Guo ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Protective Coating ◽  
Polymer Coating ◽  
Solid Electrolyte Interphase ◽  
Dendrite Growth ◽  
Lithium Metal ◽  
Cycling Process ◽  
Lithium Metal Anodes ◽  
Metal Anodes

We develop an alloy/polymer double-layered protective coating as an artificial solid electrolyte interphase (SEI) to mitigate immoderate dendrite growth during the cycling process for lithium metal anodes (LMAs).

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