Intragranular growth and evenly distribution mechanism of Li metal in Li7La3Zr2O12 electrolyte | |
Linchao Zhang1; Junfeng Yang1; Chunliu Li1; Yunxia Gao1; Xianping Wang1; Qianfeng Fang1,2 | |
刊名 | JOURNAL OF POWER SOURCES |
2019-12-13 | |
英文摘要 | The application of garnet-type solid electrolytes in all-solid-state Li metal battery is seriously impeded by the lithium dendrite and resultant short-circuit. To explore its growth mechanism, in this work, a special asymmetric cell configuration is designed with a porous Li6.55La2.95Ca0.05Zr1.5Ta0.5O12 (LLCZTO) electrolyte between two mutually perpendicular Li metal strips. Besides the generally perceived lithium dendrite growth through grain boundaries, it is witnessed for the first time that lithium dendrite could also penetrate and break the LLCZTO grains, i.e., intragranular growth. Furthermore, uniform distributed lithium spherical particles, instead of lithium dendrite, are found on the surface of LLCZTO with Au-coating, demonstrating the beneficial effect of Au layer on restraining lithium dendrite growth. These findings shed new light on the growth mechanism and inhibition measures of lithium dendrite and would be helpful for the future research of all-solid-state Li metal battery with garnet-type solid electrolytes. |
URL标识 | 查看原文 |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/92728] |
专题 | 合肥物质科学研究院_中科院固体物理研究所 中科院固体物理研究所_专题未命名 |
通讯作者 | Junfeng Yang; Qianfeng Fang |
作者单位 | 1.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences (CAS), Hefei, 230031, PR China 2.University of Science and Technology of China (USTC), Hefei, 230026, PR China |
推荐引用方式 GB/T 7714 | Linchao Zhang,Junfeng Yang,Chunliu Li,et al. Intragranular growth and evenly distribution mechanism of Li metal in Li7La3Zr2O12 electrolyte[J]. JOURNAL OF POWER SOURCES,2019. |
APA | Linchao Zhang,Junfeng Yang,Chunliu Li,Yunxia Gao,Xianping Wang,&Qianfeng Fang.(2019).Intragranular growth and evenly distribution mechanism of Li metal in Li7La3Zr2O12 electrolyte.JOURNAL OF POWER SOURCES. |
MLA | Linchao Zhang,et al."Intragranular growth and evenly distribution mechanism of Li metal in Li7La3Zr2O12 electrolyte".JOURNAL OF POWER SOURCES (2019). |
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