In Situ Formed Shields Enabling Li2CO3-Free Solid Electrolytes: A New Route to Uncover the Intrinsic Lithiophilicity of Garnet Electrolytes for Dendrite-Free Li-Metal Batteries

2018 ◽  
Vol 11 (1) ◽  
pp. 898-905 ◽  
Author(s):  
Jian-Fang Wu ◽  
Bo-Wei Pu ◽  
Da Wang ◽  
Si-Qi Shi ◽  
Ning Zhao ◽  
...  
Keyword(s):  
Solid Electrolytes

scholarly journals In Situ Investigation of Interphase and Microstructure Effects on the Chemo-Mechanics of Thiophosphate Solid Electrolytes

2020 ◽  
Author(s):  
Marm Dixit ◽  
Nikhilendra Singh ◽  
James Horwath ◽  
Pavel Shevchenko ◽  
Eric Stach ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Mechanical Performance ◽  
Iodine Doping ◽  
Fracture Region ◽  
In Situ Investigation ◽  
Electrochemical Cycling ◽  
Solid State Batteries ◽  
Processing Techniques

<p>Lithium thiophosphates (Li3PS4, LPS) are promising solid electrolytes for safe, energy dense solid-state batteries. However, chemo-mechanical transformations within the bulk solid electrolyte and at solidjsolid interfaces can lead to lithium filament formation and fracture-induced failure. The interdependent role of kinetically stable interphases and electrolyte microstructures on the onset and propagation of fracture is not clearly understood. Here, we investigate the effect of interphase chemistry and microstructure on the chemo-mechanical performance of LPS electrolytes. Kinetically metastable interphases are engineered with iodine doping and microstructural control is achieved using milling and annealing processing techniques. In situ transmission electron microscopy reveals how iodine diffuses to the interphase and upon electrochemical cycling pores are formed in the interphase region. Pores/voids formed in the interphase are chemo-mechanically driven via directed ion transport. In situ synchrotron tomography reveals that interphase pore formation drives edge fracture events which are the origin of through-plane fracture failure. Active Li metal has a tendency to fill the fracture region. Cycling lithium in fracture sites leads to localized stress within the solid electrolyte which accumulates and ultimately leads to catastrophic failure. Fractures in thiophosphate electrolytes actively grow toward regions of higher porosity and are impacted by heterogenity in solid electrolyte microstructure (e.g. porosity factor).</p>

In-situ formation of Li3N-rich interface between lithium and argyrodite solid electrolyte enabled by nitrogen doping

2021 ◽  
Author(s):  
Yu Liu ◽  
Han Su ◽  
Min Li ◽  
Jiayuan Xiang ◽  
Xianzhang Wu ◽  
...  
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Solid Electrolyte ◽  
Solid Electrolytes ◽  
Nitrogen Doping ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Metal ◽  
In Situ Formation

All-solid-state Li metal batteries (ASSLMBs) have been regarded as the next generation batteries due to their high energy density and safety. However, catastrophic interface between lithium metal and solid electrolytes...

ChemInform Abstract: Solid Electrolytes for in situ Promotion of Catalyst Surfaces: The NEMCA Effect

ChemInform ◽  
2010 ◽  
Vol 24 (49) ◽  
pp. no-no ◽  
Author(s):  
C. G. VAYENAS ◽  
S. BEBELIS ◽  
I. V. YENTEKAKIS ◽  
P. TSIAKARAS ◽  
H. KARASALI ◽  
...  
Keyword(s):  
Solid Electrolytes ◽  
Nemca Effect ◽  
Catalyst Surfaces

High Conductivity, High Strength Solid Electrolytes Formed by in Situ Encapsulation of Ionic Liquids in Nanofibrillar Methyl Cellulose Networks

2016 ◽  
Vol 8 (21) ◽  
pp. 13426-13436 ◽  
Author(s):  
Ramya Mantravadi ◽  
Parameswara Rao Chinnam ◽  
Dmitriy A. Dikin ◽  
Stephanie L. Wunder
Keyword(s):  
Ionic Liquids ◽  
Solid Electrolytes ◽  
Methyl Cellulose ◽  
High Strength ◽  
High Conductivity

In Situ Controlled Promotion of Catalyst Surfaces Via Solid Electrolytes: The NEMCA Effect

1995 ◽  
Vol 99 (11) ◽  
pp. 1393-1401 ◽  
Author(s):  
Constantinos G. Vayenas ◽  
Ioannis V. Yentekakis ◽  
Symeon I. Bebelis ◽  
Stylianos G. Neophytides
Keyword(s):  
Solid Electrolytes ◽  
Nemca Effect ◽  
Catalyst Surfaces

Functional polyethylene glycol based solid electrolytes with enhanced interfacial compatibility for room-temperature lithium metal batteries

2021 ◽  
Author(s):  
Yuhang Zhang ◽  
Shimou Chen ◽  
Yong Chen ◽  
Lingdong Li
Keyword(s):  
Polyethylene Glycol ◽  
Solid State ◽  
Solid Electrolytes ◽  
Room Temperature ◽  
In Situ Polymerization ◽  
Lithium Metal ◽  
Lithium Metal Batteries ◽  
Interfacial Compatibility ◽  
Solid State Electrolytes

The interface issues of electrodes/solid-state electrolytes have been limiting the application for room-temperature lithium metal batteries. In-situ polymerization technology achieved the establishment of solid-solid ultra-conformal interface contacts. However, few considerations...

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