TY - JOUR
T1 - Fabrication of Flexible Nickel Hydroxide Electrode for Nickel–Zinc Battery
AU - Lee, Joonyoung
AU - Lim, Semi
AU - Kwon, Yongchai
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Korean Institute of Chemical Engineers 2025.
PY - 2025
Y1 - 2025
N2 - Nickel–Zinc (Ni–Zn) batteries are attractive as a potential alternative to conventional lithium-ion batteries due to their cost-effectiveness and environmental benefits. This study explores the fabrication of a flexible electrode using nickel hydroxide (Ni(OH)2) that is electrochemically deposited on a Buckypaper and polydimethylsiloxane (BP@PDMS) substrate. The electrodeposition condition is optimized by varying applied current density (− 1, − 1.5, and − 2 mA/cm2), and − 1.5 mA/cm2 condition yields the highest specific capacity of 0.2 mAh/cm2. According to spectroscopic and optical analyses, when − 1.5 mA/cm2 is applied, Ni(OH)2 is properly deposited on the BP@PDMS electrode, inducing a high specific capacity. Furthermore, Ni(OH)2/BP@PDMS cathode is compared with (i) Ni foil cathode, and (ii) untreated BP@PDMS cathode to demonstrate its superior redox reaction, capacity, and stability. Despite minor capacity decay of Ni–Zn battery occurring for a long cycle test, the findings suggest that Ni–Zn batteries are suitable for portable electronic devices and offer a promising alternative to existing battery technologies.
AB - Nickel–Zinc (Ni–Zn) batteries are attractive as a potential alternative to conventional lithium-ion batteries due to their cost-effectiveness and environmental benefits. This study explores the fabrication of a flexible electrode using nickel hydroxide (Ni(OH)2) that is electrochemically deposited on a Buckypaper and polydimethylsiloxane (BP@PDMS) substrate. The electrodeposition condition is optimized by varying applied current density (− 1, − 1.5, and − 2 mA/cm2), and − 1.5 mA/cm2 condition yields the highest specific capacity of 0.2 mAh/cm2. According to spectroscopic and optical analyses, when − 1.5 mA/cm2 is applied, Ni(OH)2 is properly deposited on the BP@PDMS electrode, inducing a high specific capacity. Furthermore, Ni(OH)2/BP@PDMS cathode is compared with (i) Ni foil cathode, and (ii) untreated BP@PDMS cathode to demonstrate its superior redox reaction, capacity, and stability. Despite minor capacity decay of Ni–Zn battery occurring for a long cycle test, the findings suggest that Ni–Zn batteries are suitable for portable electronic devices and offer a promising alternative to existing battery technologies.
KW - Buckypaper
KW - Nickel hydroxide
KW - Nickel–Zinc batteries
KW - Polydimethylsiloxane
KW - Zinc
UR - https://www.scopus.com/pages/publications/105017876122
U2 - 10.1007/s11814-025-00575-1
DO - 10.1007/s11814-025-00575-1
M3 - Article
AN - SCOPUS:105017876122
SN - 0256-1115
JO - Korean Journal of Chemical Engineering
JF - Korean Journal of Chemical Engineering
ER -
