Integrating the multiple functionalities in metalloporphyrin porous organic polymers enabling strong polysulfide anchoring and rapid electrochemical kinetics in Li–S batteries

Abstract

Ready lithium polysulfide (LiPS) diffusion and sluggish redox kinetics hamper lithium-sulfur (Li-S) battery toward high cyclability and rate capability. Herein, metalloporphyrin-based porous organic polymers [Por(M)-POPs] integrated with electrolyte accessible, Li-ions...

Ionic Porous Organic Polymers Synthesized Using Solvothermal and Mechanochemical Methods as Solid Electrolytes for Lithium Metal Batteries

“…e , Arrhenius plots of Li + @Si–S–POP (ST) and Li + @Si–S–POP (MC) reveal low activation energies corresponding to a hopping-type mechanism. f , Comparison charts of the σ Li + and t Li + of Li + @Si–S–POPs with other published state-of-the-art quasi- to all-solid-state POPs (triangle) and iCOFs (sphere). − ,,, Detailed data are summarized in Table S1.…”

“…Zhou et al used POPs as fillers to prepare poly­(ethylene oxide)-based composite solid-state electrolytes with a conductivity of 3.2 × 10 –5 S cm –1 and a t Li + value of 0.18 . Furthermore, Ye et al synthesized POPs with a conductivity of 2.7 × 10 –5 S cm –1 …”

Regulating the kinetic behaviours of polysulfides by designing an Au–COF interface in lithium–sulfur batteries

“…[6][7][8][9] Unfortunately, there is still a big gap between the actual and theoretical energy densities of Li-S batteries due to some serious issues, among which the sluggish/incomplete conversion kinetic and shuttle effect of polysuldes results in the attenuation of capacity, severe self-discharge, and loss of active substances. [10][11][12][13] Many studies have been devoted to overcoming this issue. Attributed to the design of functional separators, the electrochemical performance and cycle stability of Li-S batteries have been effectively improved.…”

Dispersion of ultrastable crown-ether-functionalized triphenylamine and pyrene-linked porous organic conjugated polymers with single-walled carbon nanotubes as high-performance electrodes for supercapacitors

“…These factors collectively contribute to enhancing the overall performance of supercapacitors. [15][16][17] POPs are characterized by a multidimensional porous network interconnected by covalent bonds. 18 The extensive range of building blocks and reaction pathways available allows for the creation of POP materials with diverse architectures and a wide range of characteristics.…”