A facile synthesis approach of Li₂MnO₃ cathode material for lithium-ion battery by one-step high-energy mechanical activation method

ABSTRACT

In this article, Li₂MnO₃ was successfully prepared by a facile one-step high-energy mechanical activation method free from sintering. XRD, SEM, and TEM techniques were employed to analyse the materials, meanwhile the electrochemical properties of the obtained material are studied. XRD result shows that the desired material Li₂MnO₃ can be obtained just by high-energy ball milling without sintering, and the existence of Li₂MnO₃ was further proved by XPS. The obtained materials by high-energy ball milling are in a nano-scale range from 20 to 100 nm, which was confirmed by TEM and SEM. The electrochemical tests show that the prepared materials can be directly put into use as the cathode of lithium-ion batteries without secondary treatment. Successful preparation of Li₂MnO₃ by high-energy mechanical activation method provides a breakthrough for the low energy consumption and environmentally friendly industrialisation of new powder materials.

KEYWORDS:

• Lithium ion battery
• cathode materials
• high-energy ball milling
• sintering free

Highlights

1. A route featuring no need of calcination for preparing powder material was brought forward.

2. The material prepared from this route showed appropriate performance.

3. This route is of much significance to the industrialization of new powder materials.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Fundamental Research Funds for the Central Universities of Central South University (2019zzts941) and the Nature Science Foundation of China (Grant No. 51772333).