Graphene encapsulated spherical hierarchical superstructures self-assembled by life0.75mn0.25po4 nanoplates for high-performance li-ion batteries
文献类型：期刊论文
| 作者 | Mei, Riguo1,2; Yang, Yanfeng1; Song, Xiaorui1; An, Zhenguo1; Yan, Kaiqi1; Zhang, Jingjie1 |
| 刊名 | Electrochimica acta
 |
| 出版日期 | 2016-11-10 |
| 卷号 | 218页码:325-334 |
| 关键词 | Li-ion battery Cathode material Life0.75mn0.25po4 nanoplates Graphene encapsulation Self-assembly |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2016.07.140 |
| 通讯作者 | Zhang, jingjie(jjzhang@mail.ipc.ac.cn) |
| 英文摘要 | The electrochemical performance of life0.75mn0.25po4 material is further enhanced via synergistic strategies including crystal orientation growth, microspherical self-assembly and graphene encapsulation. the crystal orientation growth of life0.75mn0.25po4 with plate-like morphology not only reduces the li-ion transport length, but also enlarges the (010) surface, and leads to the improvement of li-ion diffusion. the self-assembled spherical hierarchical superstructures can effectively prevent the planeplane stacks of life0.75mn0.25po4 nanoplates during spontaneously aggregating, providing more (010) surface for li+ insertion/extraction. the graphene encapsulation can build a 3d conductive network as well as stabilize the microspherical aggregations, resulting in superior electronic conductivity and stability. as a consequence of the synergistic effects, the as-obtained life0.75mn0.25po4 sample exhibits excellent rate capability (141.1 ma h g(-1) at 5 c, 126.5 ma h g(-1) at 10 c, 107.7 ma h g(-1) at 20 c) and outstanding cyclability (25 degrees c, 94.6% capacity retention after 500 cycles at 1 c). the synergistic strategy involving crystal orientation growth, microspherical self-assembly and graphene encapsulation provides a fascinating candidate to obtain superior olivine-type cathode materials with excellent rate capability and cycling stability, and holds the potential to be extended to the controlled preparation of other electrode materials. (c) 2016 published by elsevier ltd. |
| WOS关键词 | ELECTROCHEMICAL PERFORMANCE ; CATHODE MATERIAL ; LIMNPO4 ; LIFEPO4 ; OLIVINE ; OXIDE ; MICROSPHERES ; CHALLENGES ; EVOLUTION ; SERIES |
| WOS研究方向 | Electrochemistry |
| WOS类目 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000385840100040 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374837 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, Jingjie |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, State Key Lab Technol Space Cryogen Propellants, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mei, Riguo,Yang, Yanfeng,Song, Xiaorui,et al. Graphene encapsulated spherical hierarchical superstructures self-assembled by life0.75mn0.25po4 nanoplates for high-performance li-ion batteries[J]. Electrochimica acta,2016,218:325-334. |
| APA | Mei, Riguo,Yang, Yanfeng,Song, Xiaorui,An, Zhenguo,Yan, Kaiqi,&Zhang, Jingjie.(2016).Graphene encapsulated spherical hierarchical superstructures self-assembled by life0.75mn0.25po4 nanoplates for high-performance li-ion batteries.Electrochimica acta,218,325-334. |
| MLA | Mei, Riguo,et al."Graphene encapsulated spherical hierarchical superstructures self-assembled by life0.75mn0.25po4 nanoplates for high-performance li-ion batteries".Electrochimica acta 218(2016):325-334. |
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来源：中国科学院大学
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