Segmental and interfacial dynamics quantitatively determine ion transport in solid polymer composite electrolytes

2022 ◽  
pp. 52143
Author(s):  
Yage Huang ◽  
Xintong Mei ◽  
Yunlong Guo
Keyword(s):  
Ion Transport ◽  
Polymer Composite ◽  
Solid Polymer ◽  
Composite Electrolytes ◽  
Interfacial Dynamics

scholarly journals A Critical Review for an Accurate Electrochemical Stability Window Measurement of Solid Polymer and Composite Electrolytes

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3840
Author(s):  
Adrien Méry ◽  
Steeve Rousselot ◽  
David Lepage ◽  
Mickaël Dollé
Keyword(s):  
Ionic Conductivity ◽  
Energy Density ◽  
High Performance ◽  
Mechanical Stability ◽  
Electrochemical Stability ◽  
Solid Polymer Electrolytes ◽  
Solid Polymer ◽  
Composite Electrolytes ◽  
Battery System ◽  
Electrochemical Stability Window

All-solid-state lithium batteries (ASSLB) are very promising for the future development of next generation lithium battery systems due to their increased energy density and improved safety. ASSLB employing Solid Polymer Electrolytes (SPE) and Solid Composite Electrolytes (SCE) in particular have attracted significant attention. Among the several expected requirements for a battery system (high ionic conductivity, safety, mechanical stability), increasing the energy density and the cycle life relies on the electrochemical stability window of the SPE or SCE. Most published works target the importance of ionic conductivity (undoubtedly a crucial parameter) and often identify the Electrochemical Stability Window (ESW) of the electrolyte as a secondary parameter. In this review, we first present a summary of recent publications on SPE and SCE with a particular focus on the analysis of their electrochemical stability. The goal of the second part is to propose a review of optimized and improved electrochemical methods, leading to a better understanding and a better evaluation of the ESW of the SPE and the SCE which is, once again, a critical parameter for high stability and high performance ASSLB applications.

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