Hydrothermal Preparation and High Electrochemical Performance of NiS Nanospheres as Anode for Lithium-Ion Batteries

Lin-Hui Wang; Long-Long Ren; Yu-Feng Qin; Qiang Li

doi:10.3389/fchem.2021.812274

Hydrothermal Preparation and High Electrochemical Performance of NiS Nanospheres as Anode for Lithium-Ion Batteries

Front Chem. 2022 Feb 3:9:812274. doi: 10.3389/fchem.2021.812274. eCollection 2021.

Authors

Lin-Hui Wang¹, Long-Long Ren², Yu-Feng Qin¹, Qiang Li³

Affiliations

¹ College of Information Science and Engineering, Shandong Agricultural University, Taian, China.
² College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian, China.
³ College of Physics, University-Industry Joint Center for Ocean Observation and Broadband Communication, Qingdao University, Qingdao, China.

Abstract

Nickel sulfide has been widely studied as an anode material for lithium-ion batteries due to its environmental friendliness, low cost, high conductivity, and high theoretical capacity. A simple hydrothermal method was used to prepare NiS nanospheres materials with the size in the range of 100-500 nm. The NiS nanospheres electrodes exhibited a high reversible capacity of 1402.3 mAh g^-1 at 200 mA g^-1 after 280 cycles and a strong rate capability of 814.8 mAh g^-1 at 0.8 A g^-1 and 1130.5 mAh g^-1 when back to 0.1 A g^-1. Excellent electrochemical properties and the simple preparation method of the NiS nanospheres make it possible to prepare NiS on a large scale as the anode of lithium-ion batteries.

Keywords: NiS nanospheres; anodes; electrochemical performance; hydrothermal method; lithium-ion batteries.