TY - JOUR
T1 - Stretchable, self-healable, and photodegradable supercapacitor based on a polyelectrolyte crosslinked via dynamic host-guest interaction
AU - Kim, Jaeik
AU - Kim, Jung Wook
AU - Kim, Somin
AU - Keum, Kayeon
AU - Park, Junyoung
AU - Jeong, Yu Ra
AU - Jin, Sang Woo
AU - Ha, Jeong Sook
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (Grant No. NRF-2019R1A2B5B03069545 ). The authors also thank the KU-KIST graduate school program of Korea University.
Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (Grant No. NRF-2019R1A2B5B03069545). The authors also thank the KU-KIST graduate school program of Korea University.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/10/15
Y1 - 2021/10/15
N2 - We report on the fabrication of a high performance multi-functional supercapacitor which is intrinsically stretchable, self-healable, and photodegradable. A repeatedly stretchable (500 times), photodegradable hydrogel that self-heals quickly at room temperature without any trigger is synthesized by crosslinking of azobenzeno-polyacrylamide (Azo-PAM) and water-soluble α-cyclodextrin polymer (α-CDP) via dynamic host-guest interaction. With the Azo-PAM/α-CDP/LiCl hydrogel as polyelectrolyte, the stretchable, self-healable, and photodegradable supercapacitor is fabricated. After complete bisection, the supercapacitor recovers its electrochemical performance by physical contact in air-ambient conditions and maintains its performance upon multiple cycles of self-healing at a single bisected location. It also maintains elastic performance even after repeated stretching and self-healing. Finally, the supercapacitor exhibits photodegrading performance, dissolving in water upon UV-irradiation after use. This work demonstrates the superior performance and high potential of our newly devised stretchable, self-healable, and photodegradable supercapacitor as a smart energy storage device for next-generation durable and eco-friendly wearable electronics.
AB - We report on the fabrication of a high performance multi-functional supercapacitor which is intrinsically stretchable, self-healable, and photodegradable. A repeatedly stretchable (500 times), photodegradable hydrogel that self-heals quickly at room temperature without any trigger is synthesized by crosslinking of azobenzeno-polyacrylamide (Azo-PAM) and water-soluble α-cyclodextrin polymer (α-CDP) via dynamic host-guest interaction. With the Azo-PAM/α-CDP/LiCl hydrogel as polyelectrolyte, the stretchable, self-healable, and photodegradable supercapacitor is fabricated. After complete bisection, the supercapacitor recovers its electrochemical performance by physical contact in air-ambient conditions and maintains its performance upon multiple cycles of self-healing at a single bisected location. It also maintains elastic performance even after repeated stretching and self-healing. Finally, the supercapacitor exhibits photodegrading performance, dissolving in water upon UV-irradiation after use. This work demonstrates the superior performance and high potential of our newly devised stretchable, self-healable, and photodegradable supercapacitor as a smart energy storage device for next-generation durable and eco-friendly wearable electronics.
KW - Host-guest interaction
KW - Photodegradable
KW - Self-healable
KW - Stretchable
KW - Supercapacitor
UR - http://www.scopus.com/inward/record.url?scp=85105029299&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2021.130121
DO - 10.1016/j.cej.2021.130121
M3 - Article
AN - SCOPUS:85105029299
SN - 1385-8947
VL - 422
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 130121
ER -