Are Polymer-Based Electrolytes Ready for High-Voltage Lithium Battery Applications? An Overview of Degradation Mechanisms and Battery Performance

Maria Angeles Cabanero Martinez; Nicola Boaretto; Andrew J. NaylorFrancisco AlcaideGirish D. SalianFlavia PalombariniElixabete AyerbeMateu Borrasand Montserrat Casas-Cabanas

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Are Polymer-Based Electrolytes Ready for High-Voltage Lithium Battery Applications? An Overview of Degradation Mechanisms and Battery Performance

机译：Are Polymer-Based Electrolytes Ready for High-Voltage Lithium Battery Applications? An Overview of Degradation Mechanisms and Battery Performance

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High-voltage lithium polymer cells are considered an attractive technologythat could out-perform commercial lithium-ion batteries in terms of safety,processability, and energy density. Although significant progress has beenachieved in the development of polymer electrolytes for high-voltage applications(> 4 V), the cell performance containing these materials still encounterscertain challenges. One of the major limitations is posed by poor cyclability,which is affected by the low oxidative stability of standard polyether-basedpolymer electrolytes. In addition, the high reactivity and structural instabilityof certain common high-voltage cathode chemistries further aggravatethe challenges. In this review, the oxidative stability of polymer electrolytesis comprehensively discussed, along with the key sources of cell degradation,and provides an overview of the fundamental strategies adopted forenhancing their cyclability. In this regard, a statistical analysis of the cellperformance is provided by analyzing 186 publications reported in the last17 years, to demonstrate the gap between the state-of-the-art and the requirementsfor high-energy density cells. Furthermore, the essential characterizationtechniques employed in prior research investigating the degradationof these systems are discussed to highlight their prospects and limitations.Based on the derived conclusions, new targets and guidelines are proposedfor further research.

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《Advanced energy materials》 |2022年第32期|2201264.1-2201264.35|共35页
作者
Maria Angeles Cabanero Martinez; Nicola Boaretto; Andrew J. NaylorFrancisco AlcaideGirish D. SalianFlavia PalombariniElixabete AyerbeMateu Borrasand Montserrat Casas-Cabanas;
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Center for Cooperative Research on Alternative Energies(CIC EnergiGUNE)Basque Research and Technology Alliance (BRTA)Parque Tecnológico de AlavaAlbert Einstein 48, Vitoria-Gasteiz 01510, Spain;

Department of Chemistry—?ngstr?m LaboratoryUppsala UniversityBox 538, Uppsala 75121, Sweden;

Materials for Energy UnitCIDETEC Basque Research and Technology Alliance (BRTA)Paseo Miramón 196, Donostia/San Sebastián, Guipuzcoa 20014, SpainEnergy StorageLEITAT Technological CentreC/ de la Innovació, 2, Terrassa, Barcelona 08225, SpainIKERBASQUEBasque Foundation for ScienceMaría Díaz de Haro 3, Bilbao 48013, Spain;

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degradation; high-voltage cathodes; lithium batteries; polymerelectrolytes; solid-state batteries;

Are Polymer-Based Electrolytes Ready for High-Voltage Lithium Battery Applications? An Overview of Degradation Mechanisms and Battery Performance

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