Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)3superionic conductor by spark plasma sintering for enhanced ionic conductivity
文献类型：期刊论文
| 作者 | Bing Yang; Jiale Liu; Yazhou Ren; Ying Chen; Xiaocong Tian; Luhua Lu; Shuen Houa; Jiangyu Li; Shanshan Duan; Hongyun Jin |
| 刊名 | Nano Energy
 |
| 出版日期 | 2018 |
| 文献子类 | 期刊论文 |
| 英文摘要 | In solid-state electrolytes, the large resistance at grain boundaries remains the bottleneck for high ionic conductivity. Here we develop an alternative and somewhat counterintuitive strategy to enhance their ionic conductivity via non-equilibrium microstructure. Using Li1.4Al0.4Ti1.6(PO4)3 as an example, we demonstrate that semi-crystalline interphase between well crystallized ceramic phase and amorphous glass phase can be induced by spark plasma sintering, resulting in total ionic conductivity of 1.3 × 10−3 S cm−1 without any doping, which is 2 orders of magnitude higher than that derived by the conventional method. It is further demonstrated that the non-equilibrium structure is stable in ambient condition, yet can be converted into equilibrium structure by annealing with higher crystallinity but much lower ionic conductivity, proving that the non-equilibrium structure is indeed the key to the high performance. This opens door for its applications in electric vehicles, and the strategy is applicable to other ionic systems as well. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/14393]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 推荐引用方式 GB/T 7714 | Bing Yang,Jiale Liu,Yazhou Ren,et al. Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)3superionic conductor by spark plasma sintering for enhanced ionic conductivity[J]. Nano Energy,2018. |
| APA | Bing Yang.,Jiale Liu.,Yazhou Ren.,Ying Chen.,Xiaocong Tian.,...&Ehsan Nasr Esfahani.(2018).Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)3superionic conductor by spark plasma sintering for enhanced ionic conductivity.Nano Energy. |
| MLA | Bing Yang,et al."Non-equilibrium microstructure of Li1.4Al0.4Ti1.6(PO4)3superionic conductor by spark plasma sintering for enhanced ionic conductivity".Nano Energy (2018). |
入库方式： OAI收割
来源：深圳先进技术研究院
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