|About this Abstract
||Part C-1: Hydrometallurgy 2018
||A Hybrid Energy Storage System Combining Zn Deposition and Cu Leaching in One Setup
||Kashif Mairaj Deen, Edouard Asselin
|On-Site Speaker (Planned)
||Kashif Mairaj Deen
Both Zn electrowinning and leaching of Cu from CuFeS2 are energy intensive processes. What, if we could combine these two processes in one setup? We are proposing a hybrid flow cell which uses zinc sulfate solution separated from a CuFeS2-activated carbon slurry by a membrane. During charging Zn deposits on the negative electrode while CuFeS2 oxidizes to Cu2+ on the positive electrode. An added advantage of this setup is the partial release of supplied energy at the expense of deposited Zn in the discharge cycle. In 50 charging/discharging cycles, about 20 % Cu was extracted from synthetic CuFeS2 with a ~60 % efficiency (Coulombic). The designed cell has about 50 % energy efficiency with an ability to supply back about 100 Wh/kg of specific energy.
||Planned: At-meeting proceedings