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Download or read book Development of Functional Polymeric Materials for Lithium-ion Based Energy Storage Devices written by Zhuo Li and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The ever-growing energy demand of modern society calls for application of renewable energy sources. Among various renewable energy sources, solid-state lithium-ion battery (SSLIB) has become a rising star due to its high intrinsic safety, high energy density and sustainability compared with traditional liquid lithium-ion batteries. In the development of SSLIBs, solid polymer materials have attracted intensive attention due to their many desirable properties such as processibility, sustainability and low cost. This dissertation focused on the understanding and development of novel polymer materials for SSLIBs. Chapter 2 discusses a new strategy of modifying the structure of polymer electrolyte to increase its ionic conductivity while preserving other desirable properties, such as oxidative stability by utilizing flexible, oxidatively stable aliphatic segments. Hydrogenated nitrile butadiene rubber (HNBR) and nitrile butadiene rubber (NBR) was blended with lithium bis(trifluoromethanesulfonyl) imide (LiTFSI) to create polymer electrolytes. Their physical and electrochemical properties were characterized in detail. It was found that HNBR:LiTFSI has 3.1×10-7 S/cm at room temperature. Compared with unplasticized PAN:LiTFSI and unsaturated NBR:LiTFSI, ionic conductivity of HNBR:LiTFSI is significantly improved, while the oxidative stability of PAN:LiTFSI is preserved. Chapter 3 focuses on developing a more reliable measure of oxidative stability in polymer electrolyte. Oxidative stability is an important and widely referenced property of battery electrolytes, yet its measurement is often poorly conducted. A capacity-based electrochemical method that measures the reversibility of the system was developed. The absolute stability threshold of PEO/LiTFSI (3.6V vs. Li/Li+) and HNBR/LiTFSI (3.7V vs. Li/Li+) was measured with reversibility test, and further verified by a non-electrochemical method. Chapter 4 explores the possibility of expanding the role of polymeric materials from electrolyte to cathode. Anew cathode chemistry for thin-film battery was proposed and examined. A vapor deposited polymeric charge transfer complex (CTC) cathode, P4VP-ICl was investigated. Spectroscopic, stoichiometric, and electrochemical properties of the CTC complex was collected and analyzed. P4VP-ICI LIPON Li thin film battery was demonstrated on both rigid and flexible substrates. The flexible P4VP-ICI LIPON Li battery can be bent 180ʻ without losing electrochemical performance"--Pages x-xi.