Advertisement

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

  • Snehashis Choudhury
Book

Part of the Springer Theses book series (Springer Theses)

About this book

Introduction

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.


Keywords

lithium-ion battery nanoparticle-polymer hybrid electrolyte dendrite growth multiscale modeling of ion transport hairy nanoparticle soft colloidal glasses electrode-electrolyte interphase dendrite-induced short circuit electrodeposition measurement

Authors and affiliations

  • Snehashis Choudhury
    • 1
  1. 1.Department of Chemical EngineeringStanford UniversityStanfordUSA

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-030-28943-0
  • Copyright Information Springer Nature Switzerland AG 2019
  • Publisher Name Springer, Cham
  • eBook Packages Chemistry and Materials Science
  • Print ISBN 978-3-030-28942-3
  • Online ISBN 978-3-030-28943-0
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site
Industry Sectors
Chemical Manufacturing
Engineering