Extreme properties of double networked ionogel electrolytes for flexible and durable energy storage devices

Harpalsinh H. Rana, Jeong Hee Park, Etienne Ducrot, Hun Park, Manikantan Kota, Tae Hee Han, Jun Young Lee, Jaeyun Kim, Ji Heung Kim, Patrick Howlett, Maria Forsyth, Douglas MacFarlane, Ho Seok Park

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

Achieving both performances and functionalities of energy storage devices at extreme conditions remains a critical challenge due to the property trade-offs of materials. Here, we demonstrate highly ion-conducting, stretchable, and ultradurable double network (DN) ionogel films, where ionic liquids are confined in chemically-coupled DNs consisting of hard and soft polymers, for high-temperature flexible supercapacitors (hfSCs). Both mechanical and electrochemical integrities at high temperatures are attributed to the unique DN structure and thermally activated ionic transport of the ionogels. Even at 100 °C, the DN ionogel film demonstrates remarkable properties, such as the ionic conductivity of 36.8 mS cm −1 , the tensile strength of 1.4 MPa, stretchability of 500%, and dissipation energy of 216 kJ m −3 . Thus, the hfSCs achieve the highest energy density of 51.0 Wh kg −1 at 180 °C among previous solid-state SCs, showing extreme durability of 91% over 100,000 cycles and functional hybrid system at both elevated temperatures and bent states.

Original languageEnglish
Pages (from-to)197-205
Number of pages9
JournalEnergy Storage Materials
Volume19
DOIs
Publication statusPublished - 1 May 2019

Keywords

  • Extreme property
  • Flexible supercapacitor
  • Functional gels
  • High temperature device
  • Ionogels

Cite this

Rana, Harpalsinh H. ; Park, Jeong Hee ; Ducrot, Etienne ; Park, Hun ; Kota, Manikantan ; Han, Tae Hee ; Lee, Jun Young ; Kim, Jaeyun ; Kim, Ji Heung ; Howlett, Patrick ; Forsyth, Maria ; MacFarlane, Douglas ; Park, Ho Seok. / Extreme properties of double networked ionogel electrolytes for flexible and durable energy storage devices. In: Energy Storage Materials. 2019 ; Vol. 19. pp. 197-205.
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abstract = "Achieving both performances and functionalities of energy storage devices at extreme conditions remains a critical challenge due to the property trade-offs of materials. Here, we demonstrate highly ion-conducting, stretchable, and ultradurable double network (DN) ionogel films, where ionic liquids are confined in chemically-coupled DNs consisting of hard and soft polymers, for high-temperature flexible supercapacitors (hfSCs). Both mechanical and electrochemical integrities at high temperatures are attributed to the unique DN structure and thermally activated ionic transport of the ionogels. Even at 100 °C, the DN ionogel film demonstrates remarkable properties, such as the ionic conductivity of 36.8 mS cm −1 , the tensile strength of 1.4 MPa, stretchability of 500{\%}, and dissipation energy of 216 kJ m −3 . Thus, the hfSCs achieve the highest energy density of 51.0 Wh kg −1 at 180 °C among previous solid-state SCs, showing extreme durability of 91{\%} over 100,000 cycles and functional hybrid system at both elevated temperatures and bent states.",
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author = "Rana, {Harpalsinh H.} and Park, {Jeong Hee} and Etienne Ducrot and Hun Park and Manikantan Kota and Han, {Tae Hee} and Lee, {Jun Young} and Jaeyun Kim and Kim, {Ji Heung} and Patrick Howlett and Maria Forsyth and Douglas MacFarlane and Park, {Ho Seok}",
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Rana, HH, Park, JH, Ducrot, E, Park, H, Kota, M, Han, TH, Lee, JY, Kim, J, Kim, JH, Howlett, P, Forsyth, M, MacFarlane, D & Park, HS 2019, 'Extreme properties of double networked ionogel electrolytes for flexible and durable energy storage devices', Energy Storage Materials, vol. 19, pp. 197-205. https://doi.org/10.1016/j.ensm.2018.11.008

Extreme properties of double networked ionogel electrolytes for flexible and durable energy storage devices. / Rana, Harpalsinh H.; Park, Jeong Hee; Ducrot, Etienne; Park, Hun; Kota, Manikantan; Han, Tae Hee; Lee, Jun Young; Kim, Jaeyun; Kim, Ji Heung; Howlett, Patrick; Forsyth, Maria; MacFarlane, Douglas; Park, Ho Seok.

In: Energy Storage Materials, Vol. 19, 01.05.2019, p. 197-205.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Han, Tae Hee

AU - Lee, Jun Young

AU - Kim, Jaeyun

AU - Kim, Ji Heung

AU - Howlett, Patrick

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AU - MacFarlane, Douglas

AU - Park, Ho Seok

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AB - Achieving both performances and functionalities of energy storage devices at extreme conditions remains a critical challenge due to the property trade-offs of materials. Here, we demonstrate highly ion-conducting, stretchable, and ultradurable double network (DN) ionogel films, where ionic liquids are confined in chemically-coupled DNs consisting of hard and soft polymers, for high-temperature flexible supercapacitors (hfSCs). Both mechanical and electrochemical integrities at high temperatures are attributed to the unique DN structure and thermally activated ionic transport of the ionogels. Even at 100 °C, the DN ionogel film demonstrates remarkable properties, such as the ionic conductivity of 36.8 mS cm −1 , the tensile strength of 1.4 MPa, stretchability of 500%, and dissipation energy of 216 kJ m −3 . Thus, the hfSCs achieve the highest energy density of 51.0 Wh kg −1 at 180 °C among previous solid-state SCs, showing extreme durability of 91% over 100,000 cycles and functional hybrid system at both elevated temperatures and bent states.

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