TY  - JOUR
AU  - Wu, Yan
AU  - Wang, Xingchao
AU  - Zhang, Fei
AU  - Hai, Lijuan
AU  - Chen, QiHua
AU  - Chao, Cuiqin
AU  - Yang, Aikai
AU  - Sun, Ying
AU  - Jia, Dianzeng
TI  - Combining Janus Separator and Organic Cathode for Dendrite‐Free and High‐Performance Na‐Organic Batteries
JO  - Advanced functional materials
VL  - 34
IS  - 8
SN  - 1616-301X
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2024-02467
SP  - 2309552
PY  - 2024
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001099711200001
DO  - DOI:10.1002/adfm.202309552
UR  - https://juser.fz-juelich.de/record/1024801
ER  -