Magnetic Electrodeposition of the Hierarchical Cobalt Oxide Nanostructure from Spent Lithium-Ion Batteries: Its Application as a Supercapacitor Electrode

Abstract

In this study, electrodeposition of cobalt oxide (Co 3 O 4 ) from spent lithium-ion batteries is successfully enhanced by the magnetic field effect. In the presence of magnetic field, well-defined hierarchical Co 3 O 4 nanostructures with higher electroactive surface area are formed during the electrodeposition process. Electrochemical analysis shows that the enhanced Co 3 O 4 nanostructures exhibit excellent charge storage capabilities of 1273 F g −1 at 1 A g −1 , approximately 4 times higher than the electrodeposited Co 3 O 4 that is formed without magnetic field effect. It also reveals the high cycling stability of enhanced Co 3 O 4 nanostructures, with 96% capacitance retention at 5000 charge discharge cycles. The results manifest the enhancement of Co 3 O 4 recovery from spent lithium-ion batteries, which can be the potential electrode material for supercapacitor application.

Novel approach to synthesize NiCo2S4 composite for high-performance supercapacitor application with different molar ratio of Ni and Co

“…S1b. It can be seen that all of the NiCo 2 S 4 -coated Ni mesh samples were uniformly covered with different types of nanostructure, including petal-shaped structures similar to the top view of a rose, spherical nanoparticles, and interconnected nanoflakes 35–37 . We clearly observed that the nanostructure, depth, thickness, and length of the vertical interconnected nanoflakes were affected by the ratio of Ni to Co.…”

Recent Advances in Aqueous Zinc‐ion Hybrid Capacitors: A Minireview

“…However, the electrochemical performance of the first developed ZHC is pretty moderate in this initial stage with only 300 cycles and 70 % capacitance retention. According to the Trasatti's analysis, the charge storage mechanisms of electrodes can be divided into three categories: the slow faradaic contribution which is limited by solid‐state ion diffusion, the fast faradaic contribution (also known as pseudocapacitance) from the quick charge‐transfer process at surfaces, and the non‐faradaic contribution from the electric double layer effect [18,25,26,29] . The former one can be regarded as diffusive or battery‐type charge storage while the latter two are known as capacitive charge storage.…”

Recycling of Li−Ni−Mn−Co Hydroxide from Spent Batteries to Produce High‐Performance Supercapacitors with Exceptional Stability

“…Aboelazm et al . reported on the recovery of cobalt oxide (Co 3 O 4 ) from spent Li‐ion battery and tested its performance as a supercapacitor material in 3‐electrode cell . Although the recovered Co 3 O 4 showed a specific capacitance of 1273 F g −1 , the recovery process suffers from the high cost due to the multi‐steps used to selectively deposit Co 3 O 4 under magnetic field .…”

“…Aboelazm et al reported on the recovery of cobalt oxide (Co 3 O 4 ) from spent Li-ion battery and tested its performance as a supercapacitor material in 3-electrode cell. [18] Although the recovered Co 3 O 4 showed a specific capacitance of 1273 F g À 1 , the recovery process suffers from the high cost due to the multi-steps used to selectively deposit Co 3 O 4 under magnetic field. [18] Rochaab et al were able to recover CuFe 2 O 4 ferrites from spent Li-ion battery, which showed a specific capacitance of 2.4 F g À 1 with high charge efficiency and reversibility upon use in supercapacitor cell.…”

“…[18] Although the recovered Co 3 O 4 showed a specific capacitance of 1273 F g À 1 , the recovery process suffers from the high cost due to the multi-steps used to selectively deposit Co 3 O 4 under magnetic field. [18] Rochaab et al were able to recover CuFe 2 O 4 ferrites from spent Li-ion battery, which showed a specific capacitance of 2.4 F g À 1 with high charge efficiency and reversibility upon use in supercapacitor cell. [19] Aravindan et al reported the reuse of recovered graphite from spent LIBs as negative electrode, However, the material suffered from large irreversibility in the system compared to freshly used graphite.…”