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DOI | 10.1126/science.aap8787 |
Self-heating-induced healing of lithium dendrites | |
Li, Lu1; Basu, Swastik1; Wang, Yiping2; Chen, Zhizhong2; Hundekar, Prateek1,2; Wang, Baiwei2; Shi, Jian2; Shi, Yunfeng2; Narayanan, Shankar1; Koratkar, Nikhil1,2 | |
2018-03-30 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 359期号:6383页码:1513-1516 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Lithium (Li) metal electrodes are not deployable in rechargeable batteries because electrochemical plating and stripping invariably leads to growth of dendrites that reduce coulombic efficiency and eventually short the battery. It is generally accepted that the dendrite problem is exacerbated at high current densities. Here, we report a regime for dendrite evolution in which the reverse is true. In our experiments, we found that when the plating and stripping current density is raised above similar to 9 milliamperes per square centimeter, there is substantial self-heating of the dendrites, which triggers extensive surface migration of Li. This surface diffusion heals the dendrites and smoothens the Li metal surface. We show that repeated doses of high-current-density healing treatment enables the safe cycling of Li-sulfur batteries with high coulombic efficiency. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428657000043 |
WOS关键词 | METAL ANODES ; BATTERIES ; GROWTH ; LIQUID ; MECHANISMS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/198301 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12180 USA; 2.Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA |
推荐引用方式 GB/T 7714 | Li, Lu,Basu, Swastik,Wang, Yiping,et al. Self-heating-induced healing of lithium dendrites[J]. SCIENCE,2018,359(6383):1513-1516. |
APA | Li, Lu.,Basu, Swastik.,Wang, Yiping.,Chen, Zhizhong.,Hundekar, Prateek.,...&Koratkar, Nikhil.(2018).Self-heating-induced healing of lithium dendrites.SCIENCE,359(6383),1513-1516. |
MLA | Li, Lu,et al."Self-heating-induced healing of lithium dendrites".SCIENCE 359.6383(2018):1513-1516. |
条目包含的文件 | 条目无相关文件。 |
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