Carbon-emcoating architecture boosts lithium storage of Nb2O5
文献类型：期刊论文
| 作者 | Ji, Qing; Xu, Zhuijun; Gao, Xiangwen; Cheng, Ya-Jun; Wan, Xiaoyan; Zuo, Xiuxia; Chen, George Z.; Hu, Binjie; Zhu, Jin; Bruce, Peter G. |
| 刊名 | SCIENCE CHINA-MATERIALS
 |
| 出版日期 | 2021 |
| 卷号 | 64期号:5页码:1071-1086 |
| 英文摘要 | Intercalation transition metal oxides (ITMO) have attracted great attention as lithium-ion battery negative electrodes due to high operation safety, high capacity and rapid ion intercalation. However, the intrinsic low electron conductivity plagues the lifetime and cell performance of the ITMO negative electrode. Here we design a new carbon-emcoating architecture through single CO2 activation treatment as demonstrated by the Nb2O5/C nanohybrid. Triple structure engineering of the carbon-emcoating Nb2O5/C nanohybrid is achieved in terms of porosity, composition, and crystallographic phase. The carbon-embedding Nb2O5/C nanohybrids show superior cycling and rate performance compared with the conventional carbon coating, with reversible capacity of 387 mA h g(-1) at 0.2 C and 92% of capacity retained after 500 cycles at 1 C. Differential electrochemical mass spectrometry (DEMS) indicates that the carbon emcoated Nb2O5 nanohybrids present less gas evolution than commercial lithium titanate oxide during cycling. The unique carbon-emcoating technique can be universally applied to other ITMO negative electrodes to achieve high electrochemical performance. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21978]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Cheng, YJ (corresponding author), Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England. 2.Cheng, YJ 3.Xia, YG (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 4.Hu, BJ (corresponding author), Univ Nottingham Ningbo China, Ningbo 315100, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Ji, Qing,Xu, Zhuijun,Gao, Xiangwen,et al. Carbon-emcoating architecture boosts lithium storage of Nb2O5[J]. SCIENCE CHINA-MATERIALS,2021,64(5):1071-1086. |
| APA | Ji, Qing.,Xu, Zhuijun.,Gao, Xiangwen.,Cheng, Ya-Jun.,Wan, Xiaoyan.,...&Xia, Yonggao.(2021).Carbon-emcoating architecture boosts lithium storage of Nb2O5.SCIENCE CHINA-MATERIALS,64(5),1071-1086. |
| MLA | Ji, Qing,et al."Carbon-emcoating architecture boosts lithium storage of Nb2O5".SCIENCE CHINA-MATERIALS 64.5(2021):1071-1086. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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