Study on Blended Terpolymer Electrolyte Membrane for Enhanced Safety and Performance in Lithium-Ion Batteries

The persistent emphasis on safety issues in lithium-ion batteries (LIBs) with organic liquid electrolytes revolves around thermal runaway and dendrite formation. The high thermal stability and non-leakage properties of polymer electrolytes (PEs) make them attractive as next-generation electrolytes f...

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Main Authors: Wansu Bae, Sabuj Chandra Sutradhar, Subeen Song, Kijong Joo, Doyul Lee, Donghoon Kang, Hyewon Na, Jiye Lee, Whangi Kim, Hohyoun Jang
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Batteries
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Online Access:https://www.mdpi.com/2313-0105/11/3/103
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author Wansu Bae
Sabuj Chandra Sutradhar
Subeen Song
Kijong Joo
Doyul Lee
Donghoon Kang
Hyewon Na
Jiye Lee
Whangi Kim
Hohyoun Jang
author_facet Wansu Bae
Sabuj Chandra Sutradhar
Subeen Song
Kijong Joo
Doyul Lee
Donghoon Kang
Hyewon Na
Jiye Lee
Whangi Kim
Hohyoun Jang
author_sort Wansu Bae
collection DOAJ
description The persistent emphasis on safety issues in lithium-ion batteries (LIBs) with organic liquid electrolytes revolves around thermal runaway and dendrite formation. The high thermal stability and non-leakage properties of polymer electrolytes (PEs) make them attractive as next-generation electrolytes for LIBs. This study presents a blended terpolymer electrolyte (BTPE) membrane, integrating the high ionic conductivity of dual ion conducting polymer electrolytes (DICPEs) with the elevated lithium transference number (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>t</mi></mrow><mrow><mo>+</mo></mrow></msub></mrow></semantics></math></inline-formula>) of single-ion conducting polymer electrolytes (SICPEs). The BTPE was synthesized by blending PAA–PVA with lithiated acrylic acid (LiAA), lithiated 2–acrylamido–2–methylpropane sulfonic acid (LiAMPS), and a 2–hydroxyethyl methacrylate (HEMA)–based terpolymer, using lithium bis(fluorosulfonyl)imide (LiFSI) as the lithium salt. The synthesized BTPE showed excellent physical and electrochemical stability; it also exhibited an enhanced lithium transference number (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>t</mi></mrow><mrow><mo>+</mo></mrow></msub></mrow></semantics></math></inline-formula> = 0.47) and high ionic conductivity (5.21 × 10<sup>−4</sup> S cm<sup>−1</sup> at 30 °C), attributed to the interaction between the FSI anion and the NH group of AMPS. This research presents an innovative strategy for the design of next-generation LIB electrolytes by integrating polymer electrolytes.
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series Batteries
spelling doaj-art-4f0ff63849e84cb39996b1fc2ad962982025-08-20T03:43:01ZengMDPI AGBatteries2313-01052025-03-0111310310.3390/batteries11030103Study on Blended Terpolymer Electrolyte Membrane for Enhanced Safety and Performance in Lithium-Ion BatteriesWansu Bae0Sabuj Chandra Sutradhar1Subeen Song2Kijong Joo3Doyul Lee4Donghoon Kang5Hyewon Na6Jiye Lee7Whangi Kim8Hohyoun Jang9Department of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaDepartment of Energy Material Science, Konkuk University, 268 Chungwon-daero, Chungju 27478, Republic of KoreaThe persistent emphasis on safety issues in lithium-ion batteries (LIBs) with organic liquid electrolytes revolves around thermal runaway and dendrite formation. The high thermal stability and non-leakage properties of polymer electrolytes (PEs) make them attractive as next-generation electrolytes for LIBs. This study presents a blended terpolymer electrolyte (BTPE) membrane, integrating the high ionic conductivity of dual ion conducting polymer electrolytes (DICPEs) with the elevated lithium transference number (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>t</mi></mrow><mrow><mo>+</mo></mrow></msub></mrow></semantics></math></inline-formula>) of single-ion conducting polymer electrolytes (SICPEs). The BTPE was synthesized by blending PAA–PVA with lithiated acrylic acid (LiAA), lithiated 2–acrylamido–2–methylpropane sulfonic acid (LiAMPS), and a 2–hydroxyethyl methacrylate (HEMA)–based terpolymer, using lithium bis(fluorosulfonyl)imide (LiFSI) as the lithium salt. The synthesized BTPE showed excellent physical and electrochemical stability; it also exhibited an enhanced lithium transference number (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>t</mi></mrow><mrow><mo>+</mo></mrow></msub></mrow></semantics></math></inline-formula> = 0.47) and high ionic conductivity (5.21 × 10<sup>−4</sup> S cm<sup>−1</sup> at 30 °C), attributed to the interaction between the FSI anion and the NH group of AMPS. This research presents an innovative strategy for the design of next-generation LIB electrolytes by integrating polymer electrolytes.https://www.mdpi.com/2313-0105/11/3/103polymerpolymer electrolytelithium metal batteries
spellingShingle Wansu Bae
Sabuj Chandra Sutradhar
Subeen Song
Kijong Joo
Doyul Lee
Donghoon Kang
Hyewon Na
Jiye Lee
Whangi Kim
Hohyoun Jang
Study on Blended Terpolymer Electrolyte Membrane for Enhanced Safety and Performance in Lithium-Ion Batteries
Batteries
polymer
polymer electrolyte
lithium metal batteries
title Study on Blended Terpolymer Electrolyte Membrane for Enhanced Safety and Performance in Lithium-Ion Batteries
title_full Study on Blended Terpolymer Electrolyte Membrane for Enhanced Safety and Performance in Lithium-Ion Batteries
title_fullStr Study on Blended Terpolymer Electrolyte Membrane for Enhanced Safety and Performance in Lithium-Ion Batteries
title_full_unstemmed Study on Blended Terpolymer Electrolyte Membrane for Enhanced Safety and Performance in Lithium-Ion Batteries
title_short Study on Blended Terpolymer Electrolyte Membrane for Enhanced Safety and Performance in Lithium-Ion Batteries
title_sort study on blended terpolymer electrolyte membrane for enhanced safety and performance in lithium ion batteries
topic polymer
polymer electrolyte
lithium metal batteries
url https://www.mdpi.com/2313-0105/11/3/103
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