Carbon nitride has limited application in lithium-ion batteries (LIB) due to the deterioration of its crystallinity, difficulties in lithium-ion intercalation/de-intercalation, and poor capacity and cyclic stability. To overcome the above-mentioned issues, we have synthesized carbon nitride at different temperatures and evaluated its electrochemical performance as an anode material. The results demonstrated that the carbon nitride synthesized at 600 °C (C₃N₄—600 °C) delivers a remarkable specific capacity 2221 mAh g⁻¹ at 0.1C-rate, with enhanced rate capability and cycling stability. The enhanced electrochemical performances may promote the utilization of carbon nitride in energy storage devices.

Graphical abstract

中文翻译：

---

在不同温度下合成的氮化碳作为锂离子电池负极材料的电化学性能评估

氮化碳由于其结晶度变差，锂离子嵌入/脱嵌困难以及容量和循环稳定性差而在锂离子电池（LIB）中的应用受到限制。为了克服上述问题，我们已经在不同温度下合成了氮化碳并评估了其作为负极材料的电化学性能。结果表明，在600°C（C ₃ N ₄ -600°C）下合成的氮化碳在0.1C速率下具有显着的比容量2221 mAh g ^-1，具有增强的速率容量和循环稳定性。增强的电化学性能可以促进氮化碳在能量存储装置中的利用。

图形概要