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Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries

Shao, Yunfan
http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545

Abstract Details

2018, Master of Science, University of Akron, Polymer Science.
Lithium metal batteries are regarded as promising electrochemical energy storage solutions due to their high energy densities. However, the safety issues including lithium dendrite formation impede their practical uses. In this thesis, solid polymer electrolytes based on polyethylene glycol diacrylate and additional acrylate comonomer plasticized by an organic plasticizer (succinonitrile) were studied. The lithium stripping/plating experiments indicated that the polymer electrolyte can suppress the dendrite formation under current density from 0.05 mA/cm2 to 0.5 mA/cm2. With a high room temperature conductivity of 7.8x10-4 S/cm and an wide electrochemical window of 0-5.0 V (vs. Li+/Li), the solid polymer electrolyte was used to fabricate all-solid-state lithium batteries with NCA cathode and operated at cut-off voltage of 4.3 V and current density of 0.5 C (1 C= 180 mA/g). The solid-state battery exhibited capacity retention of 47.6 % after 450 cycles with an average coulombic efficiency of 99.80 %, indicating the long-term stability of the polymer electrolyte.
Yu Zhu (Advisor)
Steven Chuang (Committee Member)
41 p.
Energy; Polymers
Solid polymer electrolyte; Lithium metal batteries

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Citations

  • Shao, Y. (2018). Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545

    APA Style (7th edition)

  • Shao, Yunfan. Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries. 2018. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545.

    MLA Style (8th edition)

  • Shao, Yunfan. "Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries." Master's thesis, University of Akron, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545

    Chicago Manual of Style (17th edition)

akron1522332577785545
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© 2018, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.