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Title page for ETD etd-05072018-101237


Type of Document Dissertation
Author Share, Keith Edward
Author's Email Address kshare01@gmail.com
URN etd-05072018-101237
Title Engineering High Capacity Alternative Ion Battery Electrodes Through Mechanistic Insight
Degree PhD
Department Interdisciplinary Materials Science
Advisory Committee
Advisor Name Title
Cary Pint Committee Chair
David Cliffel Committee Member
Greg Walker Committee Member
Richard Haglund Committee Member
Sharon Weiss Committee Member
Keywords
  • energy storage
  • Raman spectroscopy
  • desalination battery
  • potassium ion battery
  • alternative ion batteries
  • sodium ion battery
Date of Defense 2018-05-01
Availability unrestricted
Abstract
Renewable energy from wind and solar are no longer solely motivated by their environmental benefits but are now also economically competitive. Batteries are a key component in both the renewable grid infrastructure and in electric vehicles but with increased demand comes amplified concern of limited lithium resources leading to increased costs. Responding to this challenge, researchers have investigated alternative ion batteries from abundant elements such as sodium and potassium that can offer low cost alternatives to lithium ion batteries. In this dissertation, I present my research tackling the major challenges in sodium ion and potassium ion batteries. I demonstrate the first use of WSe2 as a high capacity, low overpotential sodium ion battery electrode. Using in-situ techniques I characterize the staging of K+ in few layer graphene and use that knowledge to produce the highest performance potassium ion battery anode to date, with capacities on par with lithium ion batteries. Finally, I apply knowledge gained from my battery research to another crucial field, water desalination, by using battery electrodes to remove ions from salt water. I was able to reduce energy consumption by 40% by studying the relationship between particle size and the resistive and kinetic limitations of silver electrodes during chloride ion removal.
Files
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  KShare.pdf 6.23 Mb 00:28:50 00:14:50 00:12:58 00:06:29 00:00:33

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