Abstract
With the urgent requirement for high-performance rechargeable Li-S batteries, besides various carbon materials and metal compounds, lots of conducting polymers have been developed and used as components in Li-S batteries. In this review, the synthesis of polyaniline (PANI), polypyrrole (PPy) and polythiophene (PTh) is introduced briefly. Then, the application progress of the three conducting polymers is summarized according to the function in Li-S batteries, including coating layers, conductive hosts, sulfur-containing compounds, separator modifier/functional interlayer, binder and current collector. Finally, according to the current problems of conducting polymers, some practical strategies and potential research directions are put forward. We expect that this review will provide novel design ideas to develop conducting polymer-containing high-performance Li-S batteries.
Highlights
The rapid development of industry and the massive consumption of fossil energies aggravate global climate change and environmental pollution, which has produced a common research theme about developing renewable energies involving solar energy, wind energy, tide energy, and chemical energy, including supercapacitors and batteries
The synthesis density of of PANI, PPy and PTh are introduced briefly, and their application advances in Li-S batteries are summarized in detail
9, these conducting can be synthesized by chemical oxidative comparison of threepolymers conducting polymers in Li-S
Summary
The rapid development of industry and the massive consumption of fossil energies aggravate global climate change and environmental pollution, which has produced a common research theme about developing renewable energies involving solar energy, wind energy, tide energy, and chemical energy, including supercapacitors and batteries. N-containing functional groups and p-conjugated structures in the backbone of conducting polymers can be adopted as active sites or reactive groups to confine the sulfur species These conducting polymers are often used as coating layers, conductive hosts, separator modifier/functional interlayers and binders for. When serving as the separator modifier or functional interlayer, the conductive layers are often placed on the separator surface or between the cathode and separator to retard the shuttling of dissolved polysulfides by physical obstruction and/or chemical adsorption. In view of these advantages of conducting polymers [8], PANI, PPy and PTh have been utilized as the components for Li-S batteries. According to the current problems of conducting polymers in Li-S batteries, we put forward some practical strategies, and expect that the review will provide novel design ideas for researchers in the field
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