%0 Journal Article
%A Wu, Yan
%A Wang, Xingchao
%A Zhang, Fei
%A Hai, Lijuan
%A Chen, QiHua
%A Chao, Cuiqin
%A Yang, Aikai
%A Sun, Ying
%A Jia, Dianzeng
%T Combining Janus Separator and Organic Cathode for Dendrite‐Free and High‐Performance Na‐Organic Batteries
%J Advanced functional materials
%V 34
%N 8
%@ 1616-301X
%C Weinheim
%I Wiley-VCH
%M FZJ-2024-02467
%P 2309552
%D 2024
%X The growth of Na-dendrites and the dissolution of organic cathodes are twomajor challenges that hinder the development of sodium-organic batteries(SOBs). Herein, a multifunctional Janus separator (h-BN@PP@C) by using aninterfacial engineering strategy, is proposed to tackle the issues of SOBs. Thecarbon layer facing the organic cathode serves as a barrier to capturedissolved organic materials and enhance their utilization. Meanwhile, theh-BN layer facing the Na anode possesses high thermal conductivity andmechanical strength, which mitigates the occurrence of localized-temperature“hot spots” and promotes the formation of a NaF-enriched SEI, therebysuppressing dendrite growth. Consequently, the Janus separator enables astable Na plating/stripping cycling for 1000 h at 3 mA cm−2. Equipped withthe Janus separator, organic cathodes including dibenzo[b,i]thianthrene-5,7,12,14-tetraone (DTT), pentacene-5,7,12,14-tetrone andCalix[4]quinone cathodes demonstrate high capacity and remarkable cyclingperformance. In particular, the DTT exhibits a bipolar co-reaction storagemechanism and achieves an ultrahigh capacity (≈342.6 mAh g−1), long-termcycling stability (capacity decay rate of 0.15% per cycle over 550 cycles at500 mA g−1) and fast kinetics (1000 mA g−1≈2.8 C). This study offers astraightforward, effective, and promising solution to address the challenges in SOBs.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001099711200001
%R 10.1002/adfm.202309552
%U https://juser.fz-juelich.de/record/1024801