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

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

Bibliographic Details
Main Author: Shao, Yunfan
Language:English
Published: University of Akron / OhioLINK 2018
Subjects:
Polymers
Energy
Solid polymer electrolyte
Lithium metal batteries
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-akron15223325777855452021-08-03T07:05:42Z Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries Shao, Yunfan Polymers Energy Solid polymer electrolyte Lithium metal batteries 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/cm<sup>2</sup> to 0.5 mA/cm<sup>2</sup>. With a high room temperature conductivity of 7.8x10<sup>-4</sup> S/cm and an wide electrochemical window of 0-5.0 V (<i>vs.</i> Li<sup>+</sup>/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. 2018-06-08 English text University of Akron / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545 http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Polymers
Energy
Solid polymer electrolyte
Lithium metal batteries
spellingShingle Polymers
Energy
Solid polymer electrolyte
Lithium metal batteries
Shao, Yunfan
Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries
author Shao, Yunfan
author_facet Shao, Yunfan
author_sort Shao, Yunfan
title Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries
title_short Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries
title_full Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries
title_fullStr Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries
title_full_unstemmed Highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries
title_sort highly electrochemical stable quaternary solid polymer electrolyte for all-solid-state lithium metal batteries
publisher University of Akron / OhioLINK
publishDate 2018
url http://rave.ohiolink.edu/etdc/view?acc_num=akron1522332577785545
work_keys_str_mv AT shaoyunfan highlyelectrochemicalstablequaternarysolidpolymerelectrolyteforallsolidstatelithiummetalbatteries
_version_ 1719453391988457472

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