NASICON type KTi2(PO4)3 decorated by NTCDA-derived carbon layer for enhanced lithium/sodium storage

Minhui Zheng; Zhoulu Wang; Qiang Ru; Haikuo Fu; Jun Zhang; Zikang Pan; Jiaqi Wang; Qizhen Xie; Xing Zhao

doi:10.1016/j.jcis.2021.10.009

NASICON type KTi₂(PO₄)₃ decorated by NTCDA-derived carbon layer for enhanced lithium/sodium storage

J Colloid Interface Sci. 2022 Jan 15;606(Pt 2):1906-1917. doi: 10.1016/j.jcis.2021.10.009. Epub 2021 Oct 6.

Authors

Minhui Zheng¹, Zhoulu Wang², Qiang Ru³, Haikuo Fu⁴, Jun Zhang⁵, Zikang Pan¹, Jiaqi Wang¹, Qizhen Xie¹, Xing Zhao¹

Affiliations

¹ Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Engineering Technology Research Center of Efficient Green, Energy and Environment Protection Materials, Guangdong Provincial Key Laboratory of Nuclear Science, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; Guangdong-Hong Kong Joint Laboratory of Quantum Matter, South China Normal University, Guangzhou 510006, China.
² School of Chemistry, South China Normal University, Guangzhou 510006, China.
³ Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Engineering Technology Research Center of Efficient Green, Energy and Environment Protection Materials, Guangdong Provincial Key Laboratory of Nuclear Science, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; Guangdong-Hong Kong Joint Laboratory of Quantum Matter, South China Normal University, Guangzhou 510006, China; SCNU Qingyuan Institute of Science and Technology Innovation Co., Ltd., Qingyuan 511517, China. Electronic address: rq7702@yeah.net.
⁴ Qingyuan Jiazhi New Materials Research Institute Co.Ltd., Qingyuan, 511517, China.
⁵ School of Physical Science and Technology, Lingnan Normal University, 29 Cunjin Road, Zhanjiang 524048, China.

PMID: 34689047
DOI: 10.1016/j.jcis.2021.10.009

Abstract

NASICON type KTi₂(PO₄)₃ decorated by NTCDA-derived carbon layer (KTP/NC) was prepared as anode material to obtain sustainable lithium/sodium ion storage (LIBs/SIBs). Due to its prominent capacitance, good electronic conductivity and ability to constrain volume, the KTP/NC composite realizes highly electrochemical kinetics both in LIBs and SIBs. For LIBs, the KTP/NC composite delivers a superior reversible capacity of 598.1 mAh g^-1 after 200 cycles at 0.5C, impressive cyclability with 225.5 mAh g^-1 after 3000 cycles at an ultrahigh current density of 26.1 C and conspicuous rate performance of 160.6 mAh g^-1 even at 52.2 C. In addition, the composite has a wide operation-temperature window with favorable capacities of 147.1-372.9 mAh g^-1 from -10 °C to 50 °C. As for SIBs, the KTP/NC composite maintains a stable discharge capacity of 112.5 mAh g^-1 after 700 cycles at a current density of 2.6 C and conspicuous rate performance of 86.7 mAh g^-1 at 5.2 C. The KTP/NC anode exhibits discharge capacities of 29.9-112.6 mAh g^-1 from -10 °C to 40 °C. The results demonstrate that the KTP/NC composite would be a promising electrode material for LIBs and SIBs.

Keywords: High-low temperature; KTi(2)(PO(4))(3); Lithium-ion batteries; Sodium-ion batteries.