Rational Design of Nanostructured Polymer Electrolytes and Solid-Liquid Interphases for Lithium Batteries

Rational Design of Nanostructured Polymer Electrolytes and Solid-Liquid Interphases for Lithium Batteries - Springer Theses

1st Edition 2019

Hardback (05 Oct 2019) | English

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Synopsis

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.


Book information

ISBN: 9783030289423
Publisher: Springer International Publishing
Imprint: Springer
Pub date:
Edition: 1st Edition 2019
Language: English
Number of pages: 230
Weight: 541g
Height: 235mm
Width: 155mm