Crystal transformation engineering for effective polysulfides blocking layer for excellent energy density lithium–sulfur batteries

Rongrong Chu,Thanh Tuan Nguyen,Hewei Song,Muthu Austeria P,Yanqun Bai,Do Hwan Kim,Joong Hee Lee,Nam Hoon Kim

Energy Storage Materials（2023）

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摘要

•The m–/c–ZrO2/NCG heterojunction was prepared via hydrothermal pyrolysis.•Crystal transformation engineering is used for effective polysulfide blocking layer.•c-ZrO2 as an anchor node efficiently absorbs and traps LiPSs, while m-ZrO2 can accelerate the conversion reaction of long-chain LiPSs.•Cells with m–/c–ZrO2/NCG heterojunction modified separators had durable cycles.

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关键词

Shuttling effect, Lithium-sulfur battery, Zirconium dioxide, Octahedral structure, Reaction kinetics

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