Black phosphorus stabilized by titanium disulfide and graphite via chemical bonds for high-performance lithium storage

Hongxiang Kuai; Chuang Ji; Xiangdong Ma; Xunhui Xiong; Shengkui Zhong

doi:10.1016/j.jcis.2023.04.005

Black phosphorus stabilized by titanium disulfide and graphite via chemical bonds for high-performance lithium storage

J Colloid Interface Sci. 2023 Aug:643:1-8. doi: 10.1016/j.jcis.2023.04.005. Epub 2023 Apr 5.

Authors

Hongxiang Kuai¹, Chuang Ji¹, Xiangdong Ma¹, Xunhui Xiong², Shengkui Zhong³

Affiliations

¹ School of Environment and Energy, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510640, China.
² School of Environment and Energy, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou 510640, China. Electronic address: esxxiong@scut.edu.cn.
³ College of Marine Science & Technology, Hainan Tropical Ocean University, Sanya 572022, China.

PMID: 37044009
DOI: 10.1016/j.jcis.2023.04.005

Abstract

Black phosphorus (BP) anode has received extensive attentions for lithium-ion batteries (LIBs) due to its ultrahigh theoretical specific capacity (2596 mAh g^-1) and superior electronic conductivity (≈10² S m^-1). However, the enormous volume variations during lithiation/delitiation processes greatly limit its applications. Herein, a new BP-titanium disulfide-graphite (BP-TiS₂-G) nanocomposite composed of BP, titanium disulfide and graphite has been prepared by a facile and scalable high-energy ball milling method. The experimental data proves that PC and PS bonds have been successfully introduced at the interface, which can effectively maintain the structural integrity of the BP-TiS₂-G electrode when evaluated as an anode material for LIBs. In addition, lithium-ion diffusion kinetics have been demonstrated to be enhanced from the synergistic effect of PC and PS bonds. As a result, the BP-TiS₂-G anode shows outstanding cycling stability (906.2 mAh g^-1 after 1300 cycles at 1.0 A g^-1) and superior rate performance (313.8 mAh g^-1 at 10.0 A g^-1). Our work shows the synergistic effects of different chemical bonds to stabilize BP can be a potential strategy for the development of high-performance alloy-type anodes for rechargeable batteries.

Keywords: Black phosphorus; Chemical bonds; Electrochemical performances; Lithium-ion batteries; Synergistic effect.