[1]贺心一*,宁凡雨,赵 彪,等.doi: 10.3969/j.issn.1001-3849.2025.08.010碳包覆改性铌钛氧化物材料的制备及储锂性能研究[J].电镀与精饰,2025,(08):65-69.
　He Xinyi*,Ning Fanyu,Zhao Biao,et al.Research on the preparation and lithium storage performance of carbon-coating modified niobium titanium oxides[J].Plating & Finishing,2025,(08):65-69.
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doi: 10.3969/j.issn.1001-3849.2025.08.010碳包覆改性铌钛氧化物材料的制备及储锂性能研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年08
页码:
65-69
栏目:
出版日期:
2025-08-31

文章信息/Info

Title:
Research on the preparation and lithium storage performance of carbon-coating modified niobium titanium oxides
作者:
贺心一*; 宁凡雨; 赵 彪; 王杰蕾; 于智航; 刘兴江
(中国电子科技集团公司第十八研究所 化学与物理电源重点实验室,天津 300384)
Author(s):
He Xinyi*;  Ning Fanyu;  Zhao Biao;  Wang Jielei;  Yu Zhihang;  Liu Xingjiang
(National Key Laboratory of Science and Technology on Power Sources, Tianjin Institute of Power Sources, Tianjin 300384, China)
关键词:
铌钛氧化物; 负极材料; 锂离子电池; 碳包覆; 电化学性能
Keywords:
niobium titanium oxide;  negative electrode material;  lithium-ion battery;  carbon coating;  electrochemical performance
分类号:
TQ15
文献标志码:
A
摘要:
以盐酸多巴胺为碳源，通过溶剂热法和高温煅烧处理，制备了碳包覆改性的铌钛氧化物材料(TiNb2O7/C)，并将其作为锂离子电池负极材料。利用SEM、TEM、XRD等表征手段，研究了TiNb2O7/C负极材料的微观形貌和结构。TiNb2O7/C负极材料展现出优异的电化学性能，在0.1 C倍率下，TiNb2O7/C材料的放电比容量为319 mAh·g?1，而未进行碳包覆改性的TiNb2O7材料比容量为270 mAh·g?1。在10 C大倍率充放电下，TiNb2O7/C材料依然具有212 mAh·g?1的放电比容量。在1 C倍率下经过500次循环后，TiNb2O7/C材料放电比容量仍保持在284 mAh·g?1，没有显著降低。
Abstract:
Carbon-coating modified niobium titanium oxide materials (TiNb2O7/C) were prepared using dopamine hydrochloride as a carbon source through solvothermal method and high-temperature calcination treatment, which were used as negative electrode materials for lithium-ion batteries. The morphology and structure of TiNb2O7/C negative electrode materials were studied using characterization methods such as SEM, TEM and XRD. TiNb2O7/C negative electrode materials exhibit excellent electrochemical performance. At 0.1 C rate, the specific capacity of TiNb 2O7/C is 319 mAh·g?1, while the specific capacity of TiNb2O7 without carbon coating modification is 270 mAh·g ?1. Under high rate charging and discharging at 10 C, TiNb2O7/C still has a discharge specific capacity of 212 mAh·g?1. After 500 cycles at 1 C rate, the discharge specific capacity of TiNb 2O7/C remained at 284 mAh·g?1 without significant decrease.

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更新日期/Last Update: 2025-08-11