Research Article


2020, 13(3): 676–683


A phenazine anode for high-performance aqueous rechargeable batteries in a wide temperature range

Tianjiang Sun1, Chang Liu1, Jiayue Wang2, Qingshun Nian1, Yazhi Feng1, Yan Zhang3, Zhanliang Tao1 (*), and Jun Chen1

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1 Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
2 State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics (DICP), Chinese Academy of Sciences , Dalian 116023, China
3 Institute of Molecular Sciences and Engineering, Shandong University, Qingdao, Binhai Road 72, Qingdao 266237, China

Keywords: aqueous rechargeable batteries, phenazine, Na0.44MnO2, alkali-ion electrolyte, wide temperature
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Aqueous rechargeable batteries are a possible strategy for large-scale energy storage systems. However, limited choices of anode materials restrict their further application. Here we report phenazine (PNZ) as stable anode materials in different alkali-ion (Li+, Na+, K+) electrolyte. A novel full cell is assembled by phenazine anode, Na0.44MnO2 cathode and 10 M NaOH electrolyte to further explore the electrochemical performance of phenazine anode. This battery is able to achieve high capacity (176.7 mAh·g−1 at 4 C (1.2 A·g−1)), ultralong cycling life (capacity retention of 80% after 13,000 cycles at 4 C), and excellent rate capacity (92 mAh·g−1 at 100 C (30 A·g−1)). The reaction mechanism of PNZ during charge–discharge process is demonstrated by in situ Raman spectroscopy, in situ Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations. Furthermore, the system is able to successfully operate at wide temperature range from −20 to 70 °C and achieves remarkable electrochemical performance.
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A phenazine anode for high-performance aqueous rechargeable batteries in a wide temperature range. Nano Res. 2020, 13(3): 676–683

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