The nonuniformity of microscopic electrochemical reaction of electrodes essentially results in the partial reaction discrepancy and subsequent partial overheating, which is the most critical safety problem of the battery system in electric vehicles. Herein, we report a class of DLPC@S/DLPC@Li full cell based on a distinctly constructed double-layer photonic crystal (DLPC) with a three-dimensional-ordered interconnected structure. This full cell not only ensures the uniformity of microscopic electrochemical reaction but also solves common problems such as low conductivity of sulfur, poor cycle life, and lithium dendrite growth. Impressively, the full cell exhibits superior electrochemical performance pertaining to high reversible capacity of 703.3 mAh g even at an extremely high rate of 10 C and excellent cycle performance with 1200 cycles with about 0.0317% capacity loss per cycle at 0.5 C.
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| http://dx.doi.org/10.1021/acsnano.9b05718 | DOI Listing |
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