Top view SEM image of (a) pure PVDF-HFP membrane and (b) IEPIM, (c) thermogravimetric analysis of pure PVDF-HFP, Cyanex 301, IEPIM before, and after transport experiments. FTIR spectra of pure PVDF-HFP membrane, Cyanex 301 [C8mim][NTf2] and IEPIM before and after use showing distinct peaks for (d) PVDF-HFP (e) Cyanex 301, and (f) [C8mim][NTf2]

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Chemical structures (a) [C8mim][NTf2], (b) PVDF-HFP, (c) Cyanex 301

Top view SEM image of (a) pure PVDF-HFP membrane and (b) IEPIM, (c)...

(a) Extraction of Co²⁺ and Ni²⁺ into IEPIM in the feed solutions. (b)...

(a) Mass changes of IEPIM for three cycles (b) UV-Vis spectra showing...

Kinetic plots of the (a) transport of Co²⁺, (b) transport of Ni²⁺, and...

Complexation-driven ion-exchange polymer inclusion membranes for separation of cobalt and nickel ions from lithium-ion via proton pumping

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Full-text available

May 2024

Babafemi Adigun
Bishnu Prasad Thapaliya
Huimin Luo
Sheng Dai

Cobalt and nickel are vital components of lithium-ion battery (LIB) cathodes; their increasing demand requires efficient recovery from spent LIBs to foster a sustainable battery future. The limitations of current separation technologies necessitate the development of more cost-effective, efficient, and eco-friendly metal recovery methods. Herein, w...