To increase the sulfur content/loading, trap the soluble Li2Sx intermediates, and improve the cycling stability of Li/S batteries, 3D-interlaced, nitrogen-doped, micro/mesoporous carbon-fiber free standing membranes are developed. Extendable multilayers' stacking of the carbon fibers not only allows a greater sulfur content/loading on the cathode, but also helps to better mitigate the diffusion of polysulfide.
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Zhou et al. (2015) studied this question.