Highly [010]-oriented self-assembled LiCoPO4/C nanoflakes as high-performance cathode for lithium ion batteries
| Autor: | Zhenyu Wang, Yan Hou, Jianli Zou, Huimin Yuan, Zhouguang Lu, Bao Li, Hongwei Tang, Kun Chang, Zhaorong Chang |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Lithium vanadium phosphate battery chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Lithium-ion battery Cathode 0104 chemical sciences Anode Electrochemical cell law.invention chemistry Chemical engineering law General Materials Science Lithium Electrical and Electronic Engineering 0210 nano-technology Mesoporous material Ion transporter |
| Zdroj: | Nano Research. 11:2424-2435 |
| ISSN: | 1998-0000 1998-0124 |
| Popis: | In this article, highly [010]-oriented self-assembled LiCoPO4/C nanoflakes were prepared through simple and facile solution-phase strategies at low temperature and ambient pressure. The formation of 5-hydroxylmethylfurfural and levoglucosan via the dehydration of glucose during the reaction played a key role in mediating the morphology and structure of the resulting products. LiCoPO4 highly oriented along the (010)-facets exposed Li+ ion transport channels, facilitating ultrafast lithium ion transportation. In turn, the unique assembled mesoporous structure and the flake-like morphology of the prepared products benefit lithium ion batteries constructed using two-dimensional (2D) LiCoPO4/C nanoflakes self-assembles as cathodes and commercial Li4Ti5O12 as anodes. The tested batteries provide high capacities of 154.6 mA·h·g−1 at 0.1 C (based on the LiCoPO4 weight of 1 C = 167 mA·h·g−1) and stable cycling with 93.1% capacity retention after 100 cycles, which is outstanding compared to other recently developed LiCoPO4 cathodes. |
| Databáze: | OpenAIRE |
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