A Flame-Retardant Composite Polymer Electrolyte for Lithium-Ion Polymer Batteries

Seokwoo Kim; Taeyeong Han; Jiseon Jeong; Hoogil Lee; Myung Hyun Ryou; Yong Min Lee

doi:10.1016/j.electacta.2017.04.129

A Flame-Retardant Composite Polymer Electrolyte for Lithium-Ion Polymer Batteries

Seokwoo Kim
, Taeyeong Han
, Jiseon Jeong
, Hoogil Lee
, Myung Hyun Ryou
, Yong Min Lee

Department of Energy and Science and Engineering

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

A new composite polymer electrolyte (CPE) containing a flame-retardant material, Mg(OH)₂, is fabricated via a two-step process: porous poly(vinylidene-co-hexafluoropropylene) films composited with different Mg(OH)₂ contents are first prepared via casting and extraction steps, and they are then impregnated with a liquid electrolyte. As the Mg(OH)₂ content in the CPEs increases, their flame-retardant properties are greatly improved compared to those of the bare polymer electrolyte. Moreover, the better wettability of Mg(OH)₂ toward a liquid electrolyte leads to higher ionic conductivities of CPEs, thereby resulting in a better rate capability in LiCoO₂/graphite lithium-ion polymer batteries (LiPBs). However, the Mg(OH)₂ content must be limited to less than 40 wt% to maintain the mechanical properties of the corresponding CPEs.

Original language	English
Pages (from-to)	553-559
Number of pages	7
Journal	Electrochimica Acta
Volume	241
DOIs	https://doi.org/10.1016/j.electacta.2017.04.129
State	Published - 1 Jul 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Ltd

Keywords

composite polymer electrolyte
flame-retardant
lithium-ion polymer battery
magnesium hydroxide
safety

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10.1016/j.electacta.2017.04.129

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title = "A Flame-Retardant Composite Polymer Electrolyte for Lithium-Ion Polymer Batteries",

abstract = "A new composite polymer electrolyte (CPE) containing a flame-retardant material, Mg(OH)2, is fabricated via a two-step process: porous poly(vinylidene-co-hexafluoropropylene) films composited with different Mg(OH)2 contents are first prepared via casting and extraction steps, and they are then impregnated with a liquid electrolyte. As the Mg(OH)2 content in the CPEs increases, their flame-retardant properties are greatly improved compared to those of the bare polymer electrolyte. Moreover, the better wettability of Mg(OH)2 toward a liquid electrolyte leads to higher ionic conductivities of CPEs, thereby resulting in a better rate capability in LiCoO2/graphite lithium-ion polymer batteries (LiPBs). However, the Mg(OH)2 content must be limited to less than 40 wt\% to maintain the mechanical properties of the corresponding CPEs.",

keywords = "composite polymer electrolyte, flame-retardant, lithium-ion polymer battery, magnesium hydroxide, safety",

author = "Seokwoo Kim and Taeyeong Han and Jiseon Jeong and Hoogil Lee and Ryou, \{Myung Hyun\} and Lee, \{Yong Min\}",

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doi = "10.1016/j.electacta.2017.04.129",

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T1 - A Flame-Retardant Composite Polymer Electrolyte for Lithium-Ion Polymer Batteries

AU - Kim, Seokwoo

AU - Han, Taeyeong

AU - Jeong, Jiseon

AU - Lee, Hoogil

AU - Ryou, Myung Hyun

AU - Lee, Yong Min

PY - 2017/7/1

Y1 - 2017/7/1

N2 - A new composite polymer electrolyte (CPE) containing a flame-retardant material, Mg(OH)2, is fabricated via a two-step process: porous poly(vinylidene-co-hexafluoropropylene) films composited with different Mg(OH)2 contents are first prepared via casting and extraction steps, and they are then impregnated with a liquid electrolyte. As the Mg(OH)2 content in the CPEs increases, their flame-retardant properties are greatly improved compared to those of the bare polymer electrolyte. Moreover, the better wettability of Mg(OH)2 toward a liquid electrolyte leads to higher ionic conductivities of CPEs, thereby resulting in a better rate capability in LiCoO2/graphite lithium-ion polymer batteries (LiPBs). However, the Mg(OH)2 content must be limited to less than 40 wt% to maintain the mechanical properties of the corresponding CPEs.

AB - A new composite polymer electrolyte (CPE) containing a flame-retardant material, Mg(OH)2, is fabricated via a two-step process: porous poly(vinylidene-co-hexafluoropropylene) films composited with different Mg(OH)2 contents are first prepared via casting and extraction steps, and they are then impregnated with a liquid electrolyte. As the Mg(OH)2 content in the CPEs increases, their flame-retardant properties are greatly improved compared to those of the bare polymer electrolyte. Moreover, the better wettability of Mg(OH)2 toward a liquid electrolyte leads to higher ionic conductivities of CPEs, thereby resulting in a better rate capability in LiCoO2/graphite lithium-ion polymer batteries (LiPBs). However, the Mg(OH)2 content must be limited to less than 40 wt% to maintain the mechanical properties of the corresponding CPEs.

KW - composite polymer electrolyte

KW - flame-retardant

KW - lithium-ion polymer battery

KW - magnesium hydroxide

KW - safety

UR - https://www.scopus.com/pages/publications/85019243342

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DO - 10.1016/j.electacta.2017.04.129

M3 - Article

AN - SCOPUS:85019243342

SN - 0013-4686

VL - 241

SP - 553

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JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

A Flame-Retardant Composite Polymer Electrolyte for Lithium-Ion Polymer Batteries

Abstract

Bibliographical note

Keywords

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