TY - JOUR
T1 - Additive-free electrode fabrication with reduced graphene oxide using supersonic kinetic spray for flexible lithium-ion batteries
AU - Kim, Seong Dae
AU - Lee, Jong Gun
AU - Kim, Tae Gun
AU - Rana, Kuldeep
AU - Jeong, Jong Yeob
AU - Park, Jong Hyeok
AU - Yoon, Sam S.
AU - Ahn, Jong Hyun
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRF-2015R1A3A2066337 and CASE2014M3A6A5060933) funded by the Ministry of Science and ICT of Korea.
Funding Information:
This work was supported by the National Research Foundation of Korea ( NRF-2015R1A3A2066337 and CASE2014M3A6A5060933 ) funded by the Ministry of Science and ICT of Korea.
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/11
Y1 - 2018/11
N2 - Thin, lightweight, and flexible lithium-ion batteries (LIBs) are emerging as a promising power source for high-performance flexible electronics. However, their technological drawbacks have hindered the development of fully flexible electronics because of a lack of reliable electrode materials that combine superior electrochemical properties with mechanical flexibility. As a solution to this problem, we herein demonstrate an additive-free electrode fabrication process, where reduced graphene oxide (rGO) is coated onto a current collector using a supersonic kinetic spray technique (spray-rGO). The spray-rGO demonstrates outstanding mechanical and electrochemical properties compared to those of rGO electrodes fabricated using the conventional process. Moreover, despite being fabricated without any binders, spray-rGO exhibits high adhesion energy, which enables the fabrication of highly flexible electrodes with no structural deterioration or capacity degradation. This approach to fabricate additive-free flexible electrodes, which results in electrodes that satisfy other important criteria such as high rate capability, long-term cyclability, and facile and fast fabrication, is a prospective method for developing high-performance flexible LIBs.
AB - Thin, lightweight, and flexible lithium-ion batteries (LIBs) are emerging as a promising power source for high-performance flexible electronics. However, their technological drawbacks have hindered the development of fully flexible electronics because of a lack of reliable electrode materials that combine superior electrochemical properties with mechanical flexibility. As a solution to this problem, we herein demonstrate an additive-free electrode fabrication process, where reduced graphene oxide (rGO) is coated onto a current collector using a supersonic kinetic spray technique (spray-rGO). The spray-rGO demonstrates outstanding mechanical and electrochemical properties compared to those of rGO electrodes fabricated using the conventional process. Moreover, despite being fabricated without any binders, spray-rGO exhibits high adhesion energy, which enables the fabrication of highly flexible electrodes with no structural deterioration or capacity degradation. This approach to fabricate additive-free flexible electrodes, which results in electrodes that satisfy other important criteria such as high rate capability, long-term cyclability, and facile and fast fabrication, is a prospective method for developing high-performance flexible LIBs.
KW - Adhesion energy
KW - Flexible electronics
KW - Flexible energy storages
KW - Lithium ion batteries
KW - Reduced graphene oxide
UR - http://www.scopus.com/inward/record.url?scp=85049085983&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2018.06.040
DO - 10.1016/j.carbon.2018.06.040
M3 - Article
AN - SCOPUS:85049085983
SN - 0008-6223
VL - 139
SP - 195
EP - 204
JO - Carbon
JF - Carbon
ER -