Rational Design of Nanostructured Polymer Electrolytes and SolidLiquid Interphas

Description: Rational Design of Nanostructured Polymer Electrolytes and SolidLiquid Interphases for Lithium Batteries by Snehashis Choudhury This thesis makes significant advances in the design of electrolytes and interfaces in electrochemical cells that utilize reactive metals as anodes. FORMAT Paperback LANGUAGE English CONDITION Brand New Publisher Description This thesis makes significant advances in the design of electrolytes and interfaces in electrochemical cells that utilize reactive metals as anodes. Such cells are of contemporary interest because they offer substantially higher charge storage capacity than state-of-the-art lithium-ion battery technology. Batteries based on metallic anodes are currently considered impractical and unsafe because recharge of the anode causes physical and chemical instabilities that produce dendritic deposition of the metal leading to catastrophic failure via thermal runaway. This thesis utilizes a combination of chemical synthesis, physical & electrochemical analysis, and materials theory to investigate structure, ion transport properties, and electrochemical behaviors of hybrid electrolytes and interfacial phases designed to prevent such instabilities. In particular, it demonstrates that relatively low-modulus electrolytes composed of cross-linked networks of polymer-grafted nanoparticles stabilize electrodeposition of reactive metals by multiple processes, including screening electrode electrolyte interactions at electrochemical interfaces and by regulating ion transport in tortuous nanopores. This discovery is significant because it overturns a longstanding perception in the field of nanoparticle-polymer hybrid electrolytes that only solid electrolytes with mechanical modulus higher than that of the metal electrode are able to stabilize electrodeposition of reactive metals. Back Cover This thesis makes significant advances in the design of electrolytes and interfaces in electrochemical cells that utilize reactive metals as anodes. Such cells are of contemporary interest because they offer substantially higher charge storage capacity than state-of-the-art lithium-ion battery technology. Batteries based on metallic anodes are currently considered impractical and unsafe because recharge of the anode causes physical and chemical instabilities that produce dendritic deposition of the metal leading to catastrophic failure via thermal runaway. This thesis utilizes a combination of chemical synthesis, physical & electrochemical analysis, and materials theory to investigate structure, ion transport properties, and electrochemical behaviors of hybrid electrolytes and interfacial phases designed to prevent such instabilities. In particular, it demonstrates that relatively low-modulus electrolytes composed of cross-linked networks of polymer-grafted nanoparticles stabilize electrodeposition of reactive metals by multiple processes, including screening electrode electrolyte interactions at electrochemical interfaces and by regulating ion transport in tortuous nanopores. This discovery is significant because it overturns a longstanding perception in the field of nanoparticle-polymer hybrid electrolytes that only solid electrolytes with mechanical modulus higher than that of the metal electrode are able to stabilize electrodeposition of reactive metals. Author Biography Snehashis Choudhury is a postdoctoral researcher in the Department of Chemical Engineering at Stanford University. He received his PhD from Cornell University in 2018. Table of Contents Chapter 1. Introduction.- Chapter 2. Self-Suspended Suspensions of Covalently Grafted Hairy Nanoparticles.- Chapter 3. A Highly Conductive, Non-flammable Polymernanoparticle Hybrid Electrolyte.- Chapter 4. Hybrid Hairy Nanoparticle Electrolytes Stabilize Lithium Metal Batteries.- Chapter 5. A Highly Reversible Room Temperature Lithium Metal Battery Based on Cross-linked Hairy Nanoparticles.- Chapter 6. Confining Electrodeposition of Metals in Structured Electrolytes.- Chapter 7. Soft Colloidal Glasses as Solid-State.- Chapter 8. Solid Polymer Interphases for Lithium Metal Batteries.- Chapter 9. Stabilizing Polymer Electrolytes in High-Voltage Lithium Batteries.- Chapter 10. Lithium Fluoride Additives for Stable Cycling of Lithium Batteries at High Current Densities.- Chapter 11. Designing Solid-Liquid Interphases for Sodium Batteries.- Chapter 12. Electroless Formation of Hybrid Lithium Anodes for High Interfacial Ion Transport.- Chapter 13. Designer Interphases For the Lithium-Oxygen Electrochemical Cell. Feature Nominated as an outstanding PhD thesis by Cornell University Provides an introduction to lithium battery science and related design principles Proposes new criteria to stabilize dendrite growth along with experimental confirmation Presents and experimentally verifies new designs for nanostructured polymer electrolytes Details ISBN3030289451 Author Snehashis Choudhury Pages 230 Series Springer Theses Language English Year 2020 ISBN-10 3030289451 ISBN-13 9783030289454 Format Paperback Publication Date 2020-10-05 Publisher Springer Nature Switzerland AG Edition 1st Imprint Springer Nature Switzerland AG Place of Publication Cham Country of Publication Switzerland UK Release Date 2020-10-05 Edition Description 1st ed. 2019 Alternative 9783030289423 DEWEY 541.2254 Audience Professional & Vocational Illustrations 99 Illustrations, color; 17 Illustrations, black and white; XVII, 230 p. 116 illus., 99 illus. in color. We've got this At The Nile, if you're looking for it, we've got it. 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