Mesoporous TiNb2O7 nanosheets anode with excellent rate capability and cycling performance in lithium ion half/full batteries
文献类型：期刊论文
| 作者 | Liang, Dewei3; Lu, Yu3; Hu, Lei3; Wang, Lili3; Liang, Sheng3; Liang, Xin3; Liu, Lingli3; Xu, Zezhong3; Han, Chengliang3; Liang, Changhao1,2
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| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 544 |
| 关键词 | Lithium ion batteries TiNb2O7 nanosheets Mesoporous structure Synergistic effect Anode material |
| ISSN号 | 0378-7753 |
| DOI | 10.1016/j.jpowsour.2022.231897 |
| 通讯作者 | Liang, Dewei(liangdw@hfuu.edu.cn) ; Liang, Changhao(chliang@issp.ac.cn) |
| 英文摘要 | The Wadsley-Roth phase TiNb2O7 has attracted considerable attention because of its high intercalation potential and excellent cycle capability. However, the poor electronic conductivity and sluggish ionic diffusion kinetics hinder its commercial application. Herein, a novel mesoporous TiNb2O7 nanosheet (MS-TNO) is fabricated via solvothermal and subsequent calcination process. Two-dimensional mesoporous nanostructures can effectively shorten transport path of lithium ions and enhance charge transfer. Galvanostatic intermittent titration technique (GITT) test shows the values of Li+ diffusion coefficient during discharge/charge vary in range of 10(- 12)-10(- 11) cm(2) S-1, indicating high efficient Li+ diffusion pathways in the lattice. In situ X-ray diffraction experiment elucidates the insertion/extraction of Li+ in MS-TNO is highly reversible, with a unit-cell volume change of 7.22% after Li+ insertion. Consequently, MS-TNO material delivers significant surface-controlled capacitive behavior and excellent electrochemical performances. These results clearly demonstrate that the MS-TNO is a promising anode material for rapid-charging, high capacity, safe and stable lithium ion batteries. |
| WOS关键词 | ELECTROCHEMICAL PERFORMANCE ; SUPERIOR PERFORMANCE ; OXIDE ; MICROSPHERES ; ELECTRODE |
| 资助项目 | National Natural Science Foundation of China[NSFC51902079] ; University Natural Sciences Research Project of Anhui Province[KJ2021A1013] ; University Natural Sciences Research Project of Anhui Province[KJ2021A1018] ; Anhui Provincial Natural Science Foundation[2008085QE271] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000847847600001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; University Natural Sciences Research Project of Anhui Province ; Anhui Provincial Natural Science Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131940]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Liang, Dewei; Liang, Changhao |
| 作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 3.Hefei Univ, Sch Energy Mat & Chem Engn, Hefei 230601, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Dewei,Lu, Yu,Hu, Lei,et al. Mesoporous TiNb2O7 nanosheets anode with excellent rate capability and cycling performance in lithium ion half/full batteries[J]. JOURNAL OF POWER SOURCES,2022,544. |
| APA | Liang, Dewei.,Lu, Yu.,Hu, Lei.,Wang, Lili.,Liang, Sheng.,...&Liang, Changhao.(2022).Mesoporous TiNb2O7 nanosheets anode with excellent rate capability and cycling performance in lithium ion half/full batteries.JOURNAL OF POWER SOURCES,544. |
| MLA | Liang, Dewei,et al."Mesoporous TiNb2O7 nanosheets anode with excellent rate capability and cycling performance in lithium ion half/full batteries".JOURNAL OF POWER SOURCES 544(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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