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Aminated Graphite-Reinforced MnO Anode Interfacial Interaction via Mn-N-C Bonds for Enhanced Lithium-Ion Storage
Yankun Sun1, Zechen Li1, Qiang Ye2
1State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
ACS Applied Materials & Interfaces
|August 5, 2025
Summary
This study developed a novel aminated graphite/manganese oxide (MnO@300NG) anode for lithium-ion batteries. The MnO@300NG anode demonstrates enhanced stability and conductivity, leading to superior performance and cycling life.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Strong interfacial interactions are crucial for MnO anode stability and conductivity in lithium-ion batteries.
- Existing MnO anodes often suffer from poor structural stability and limited electronic conductivity.
Purpose of the Study:
- To design and synthesize a novel aminated graphite/MnO composite (MnO@300NG) with enhanced interfacial properties.
- To investigate the electrochemical performance of the MnO@300NG anode for lithium-ion battery applications.
Main Methods:
- Hydrothermal self-assembly and calcination strategies were employed to create the MnO@300NG composite.
- Electrochemical testing, including cycling stability and rate performance, was conducted on the anode and a full cell.
Main Results:
- The MnO@300NG anode exhibited a high specific capacity (920.50 mAh/g at 0.1 A/g) and excellent cycling stability (94.33% retention after 1000 cycles).
- A full cell using MnO@300NG demonstrated a high energy density (356.50 Wh/kg) and good capacity retention.
Conclusions:
- The designed Mn-N-C heterointerface significantly improves the structural stability and electrochemical kinetics of the MnO anode.
- This work provides a promising strategy for developing high-performance MnO-based anodes for advanced lithium-ion batteries.
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