Stable Li Metal Anodes via Regulating Lithium Plating/Stripping in Vertically Aligned Microchannels
文献类型：期刊论文
| 作者 | Wang, Shu-Hua1; Yin, Ya-Xia1,2; Zuo, Tong-Tong1,2; Dong, Wei1,2; Li, Jin-Yi1,2; Shi, Ji-Lei1; Zhang, Chang-Huan1; Li, Nian-Wu3; Li, Cong-Ju3; Guo, Yu-Guo1,2 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2017-10-25 |
| 卷号 | 29期号:40 |
| 关键词 | Current Density Distribution Dendrites Suppressing Electrodeposition Lithium Metal Anodes Tip Effect |
| 英文摘要 | Li anodes have been rapidly developed in recent years owing to the rising demand for higher-energy-density batteries. However, the safety issues induced by dendrites hinder the practical applications of Li anodes. Here, Li metal anodes stabilized by regulating lithium plating/stripping in vertically aligned microchannels are reported. The current density distribution and morphology evolution of the Li deposits on porous Cu current collectors are systematically analyzed. Based on simulations in COMSOL Multiphysics, the tip effect leads to preferential deposition on the microchannel walls, thus taking full advantage of the lightening rod theory of classical electromagnetism for restraining growth of Li dendrites. The Li anode with a porous Cu current collector achieves an enhanced cycle stability and a higher average Coulombic efficiency of 98.5% within 200 cycles. In addition, the resultant LiFePO4 /Li full battery demonstrates excellent rate capability and stable cycling performance, thus demonstrating promise as a current collector for high-energy-density, safe rechargeable Li batteries. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/39159]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci CAS, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shu-Hua,Yin, Ya-Xia,Zuo, Tong-Tong,et al. Stable Li Metal Anodes via Regulating Lithium Plating/Stripping in Vertically Aligned Microchannels[J]. ADVANCED MATERIALS,2017,29(40). |
| APA | Wang, Shu-Hua.,Yin, Ya-Xia.,Zuo, Tong-Tong.,Dong, Wei.,Li, Jin-Yi.,...&Guo, Yu-Guo.(2017).Stable Li Metal Anodes via Regulating Lithium Plating/Stripping in Vertically Aligned Microchannels.ADVANCED MATERIALS,29(40). |
| MLA | Wang, Shu-Hua,et al."Stable Li Metal Anodes via Regulating Lithium Plating/Stripping in Vertically Aligned Microchannels".ADVANCED MATERIALS 29.40(2017). |
入库方式： OAI收割
来源：化学研究所
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