| 蓝慧鑫,李晖,刘志强,朱镇河,李小兵.化学通报,2024,87(12):1414-1419. |
| 锂离子电池FexVO4型铁钒氧化物负极材料的研究进展 |
| Progress of FexVO4-type iron-vanadium oxide anode materials for lithium-ion batteries |
| 投稿时间：2024-06-11 修订日期：2024-07-06 |
| DOI： |
| 中文关键词: FexVO4负极材料 过渡金属氧化物 锂离子电池 改性方法 |
| 英文关键词:FexVO4 anode materials Transition metal oxides Lithium-ion batteries Modification methods |
| 基金项目:江苏省自然科学基金项目(BK20210889)资助 |
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| 中文摘要: |
| FexVO4型铁钒氧化物,由于其高理论比容量、电压平台高、环境友好、成本低等优点,成为了有望取代石墨的储能材料之一。然而,FexVO4的本征电导率较低以及体积膨胀导致的循环稳定性较差,阻碍了其实际应用的推广。本文对近年来FexVO4负极材料的研究进行了总结。基于FexVO4材料的晶体结构和离子迁移机理,介绍了其充放电机理。重点介绍了提高FexVO4电极材料电化学性能的改性研究策略,根据对材料改性机制不同分为成分改性、形貌调控改性两个大类,包括离子掺杂、碳材料改性、材料纳米化等。最后对FexVO4未来发展的挑战和前景进行了展望,并对材料今后的研究重点提出可行性建议。 |
| 英文摘要: |
| FexVO4-type ferrovanadium oxides, due to their high theoretical specific capacity, high voltage plateau, environmental friendliness, and low cost, have become one of the energy storage materials that are expected to replace graphite. However, the low intrinsic conductivity of FexVO4 and the poor cycling stability due to volume expansion have hindered the promotion of its practical application. This paper summarizes the research on FexVO4 anode materials in recent years. Based on the crystal structure and ion migration mechanism of FexVO4 material, its charging and discharging mechanism is introduced. It focuses on the modification research strategy to improve the electrochemical performance of FexVO4 electrode materials, which is divided into two major categories of composition modification and morphology modification according to the different modification mechanisms of the materials, including ion doping, carbon material modification, and material nanosizing. Finally, the challenges and prospects for the future development of FexVO4 are envisioned, and feasible suggestions are made for the future research focus of the material. |
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