Research on the Preparation of High Nitrogen-Doped Anode Materials and Their Low-Temperature Performance

21 Pages Posted: 18 Jan 2025

See all articles by Mingyuan Zhao

Mingyuan Zhao

Zhengzhou Research Institute of Mechanical Engineering Co., Ltd.

Sujuan Zhong

affiliation not provided to SSRN

Jian Qin

affiliation not provided to SSRN

Wei Dong

Liaoning Technical University

Deyun Liu

affiliation not provided to SSRN

Yongkang Li

affiliation not provided to SSRN

Abstract

Electrode materials are crucial factors influencing the low-temperature performance of lithium-ion batteries. On the anode side, the diffusion of lithium ions in graphite anodes is one of the significant bottlenecks restricting the low-temperature performance of lithium batteries. Compared with graphite materials, amorphous carbon materials possess good ion diffusion properties and are a preferred type of anode materials for low-temperature lithium-ion batteries. In this paper, high nitrogen-doped amorphous carbon materials were obtained through the carbonization of g-C₃N₄ assisted by asphalt. The synergistic system of its unique microstructure and electrochemical properties achieved a dual improvement in low-temperature performance. When the ratio of asphalt to g-C₃N₄ was 1:1, the prepared amorphous carbon material had a high nitrogen doping content (9.33%), a relatively large specific surface area (106.38 m²/g), and abundant pore volume (0.295 cm³/g). At a current density of 0.2 C, the specific discharge capacities at test temperatures of -20 °C, -40 °C and -60 °C reached 288, 235 and 161 mAh/g respectively. This dual-carbon composite material with nitrogen doping in amorphous carbon significantly improves the low-temperature performance of lithium-ion batteries and provides an effective solution for the development of the application of amorphous carbon in low-temperature lithium-ion batteries.

Keywords: electrode material, low-temperature performance, amorphous carbon materials, nitrogen doping, dual-carbon composite material

Suggested Citation

Zhao, Mingyuan and Zhong, Sujuan and Qin, Jian and Dong, Wei and Liu, Deyun and Li, Yongkang, Research on the Preparation of High Nitrogen-Doped Anode Materials and Their Low-Temperature Performance. Available at SSRN: https://ssrn.com/abstract=5101669 or http://dx.doi.org/10.2139/ssrn.5101669

Mingyuan Zhao (Contact Author)

Zhengzhou Research Institute of Mechanical Engineering Co., Ltd. ( email )

Sujuan Zhong

affiliation not provided to SSRN ( email )

No Address Available

Jian Qin

affiliation not provided to SSRN ( email )

No Address Available

Wei Dong

Liaoning Technical University ( email )

Deyun Liu

affiliation not provided to SSRN ( email )

No Address Available

Yongkang Li

affiliation not provided to SSRN ( email )

No Address Available

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Downloads
13
Abstract Views
47
PlumX Metrics