Electrochemical study of La0.6Sr0.4Co0.8Fe0.2O3 during oxygen evolution reaction

Electrochemical recycling of cobalt from spent cathodes of lithium-ion batteries: its application as supercapacitor

“…7, it is observed that our values for the specific capacity and specific energy are 601 Fg -1 and 27.71 W h Kg -1 respectively. Thereby it is observed that the recycled metallic cobalt behaves compatibly with other similar materials [19]. This shows that the recycling of cobalt is economically and environmentally viable.…”

The anode environmentally friendly for water electrolysis based in LiCoO2 recycled from spent lithium-ion batteries

“…This is because the first step in the oxygen evolution reaction is catalyzed by the Co þ3 ions in both LiCoO 2 and Co 3 O 4 (Eq. (3)) [11]. However, in an increase greater than 10% w/w of cathode was observed a reduce in the charge density.…”

“…Many papers describe the cobalt recycling from spent Li-ion batteries as a valuable and environmentally friendly method [9e11]. This is because about 15% of Li-ion cathode is composed of cobalt and the cobalt quotation rose from US$ 20 to US$ 80 per kilogram between 1998 and 2010 [11]. Moreover, very pure cobalt can be obtained by acidic dissolution of lithium cobalt oxide (LiCoO 2 ) present in spent Li-ion battery cathode [11].…”

“…This is because about 15% of Li-ion cathode is composed of cobalt and the cobalt quotation rose from US$ 20 to US$ 80 per kilogram between 1998 and 2010 [11]. Moreover, very pure cobalt can be obtained by acidic dissolution of lithium cobalt oxide (LiCoO 2 ) present in spent Li-ion battery cathode [11]. In this scenery, it is necessary to recycle the positive electrode of these batteries.…”

Carbon-Coated Perovskite BaMnO3 Porous Nanorods with Enhanced Electrocatalytic Perporites for Oxygen Reduction and Oxygen Evolution

“…5, where, R s is the resistance of the electrolyte, R f is the resistance and CPE f is the constant phase element of the catalysts layer, R ct is the charge transfer resistance and CPE dl is the constant phase element of the double layer. [34][35][36][37] The results are shown in Fig. 5, in which the symbols are the experimental data and the lines are the fitted results.…”