Trapping lithium polysulfides within the cathode by doping MnO2 nanorods into an exfoliated graphite/sulfur composite for lithium–sulfur batteries

Soni, Sunil; Kumar, Ranveer; Sodhiya, Anubha; Patel, Shwetambar; Singh, Arun Kumar

doi:10.1007/s42823-022-00390-2

Cited by 4 publications

(2 citation statements)

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“…The Fourth Industrial Revolution has seen the invention of diverse mobile electric devices such as smartphones, drones, self‐driving cars, and so on. For these reasons, energy storage technology has gained increasing importance, leading to a high demand for high‐performance batteries 1–5 …”

Section: Introductionmentioning

confidence: 99%

“…For these reasons, energy storage technology has gained increasing importance, leading to a high demand for high-performance batteries. [1][2][3][4][5] Currently, lithium-ion batteries hold the majority share of the secondary battery market. Lithium-ion batteries store chemical energy, which is converted to electrical energy through the insertion and desertion of lithium ions in the electrode.…”

Section: Introductionmentioning

confidence: 99%

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The influences of diameter distribution change of zeolitic imidazolate framework‐67 crystal on electrochemical behavior for lithium‐sulfur cell cathode

Park,

Kim

2023

Applied Organom Chemis

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To improve the electrochemical performance of Li‐S batteries, sulfur composites are prepared through sulfur's melt‐diffusion into porous materials such as metal organic frameworks (MOFs). MOFs are porous nanocrystalline materials consisting of metal ions and organic ligands. Due to their high porosity, specific surface area, and easily controllable porous structure, MOFs and their derivatives are considered useful materials for holding sulfur. Herein, the effect of the concentration of the reactants on the particle diameter distribution of ZIF‐67 is studied, and the performance of the product as a sulfur host for Li‐S battery cathode is evaluated. ZIF‐67 was prepared by regulating the Co2+ concentration in solution from 10 to 250 mM, with a constant mole ratio between Co2+ and the organic ligand. Cyclovoltammetry, galvanostatic charge–discharge, and rate capability tests were performed to electrochemically characterize each sample as a sulfur host for Li‐S battery cathodes. MeZ‐50 mM, prepared with 50 mM Co2+ ion solution, had the smallest particle diameter (591 nm). The sulfur cathode utilizing MeZ‐50 mM afforded the best electrochemical performance (883.7 mAh gS−1). This study demonstrates that the particle size of ZIF‐67 can be controlled by adjusting the reactant concentration, enabling manipulation of the electrochemical properties as a sulfur host.

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Section: Introductionmentioning

confidence: 99%