Trapping Lithium into Hollow Silica Microspheres with a Carbon Nanotube Core for Dendrite-Free Lithium Metal Anodes
文献类型：期刊论文
| 作者 | Zuo, Tong-Tong1,2; Yin, Ya-Xia1,2; Wang, Shu-Hua1; Wang, Peng-Fei1,2; Yang, Xinan3; Liu, Jian1,2; Yang, Chun-Peng1; Guo, Yu-Guo1,2
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| 刊名 | NANO LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 18期号:1页码:297-301 |
| 关键词 | Li Trapper Microcages Heterogeneous Structure Li Metal Anodes |
| ISSN号 | 1530-6984 |
| DOI | 10.1021/acs.nanolett.7b04136 |
| 英文摘要 | Li metal anodes, which have attracted much attention for their high specific capacity and low redox potential, face a great challenge in realizing their practical application. The fatal issue of dendrite formation gives rise to internal short circuit and safety hazards and needs to be addressed. Here we propose a rational strategy of trapping Li within microcages to confine the deposition morphology and suppress dendrite growth. Microcages with a carbon nanotube core and porous silica sheath were prepared and proved to be effective for controlling the electrodeposition behavior. In addition, the insulative coating layer prevents concentrated electron flow and decreases the possibility of "hot spots" formation. Because of the Li trapper and uniform electron distribution, the electrode with delicate structure exhibits a dendrite-free morphology after plating 2 mA h cm(-2) of Li. As the dendrite growth is suppressed, the as-obtained electrode maintains a high plating/stripping efficiency of 99% over 200 cycles. This work delivers new insights into the design of rational Li metal anodes and hastens the practical application of Li metal batteries. |
| 语种 | 英语 |
| WOS记录号 | WOS:000420000000041 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45401]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Guo, Yu-Guo |
| 作者单位 | 1.Chinese Acad Sci, CAS Res Educ Ctr Excellence Mol Sci, Inst Chem, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo, Tong-Tong,Yin, Ya-Xia,Wang, Shu-Hua,et al. Trapping Lithium into Hollow Silica Microspheres with a Carbon Nanotube Core for Dendrite-Free Lithium Metal Anodes[J]. NANO LETTERS,2018,18(1):297-301. |
| APA | Zuo, Tong-Tong.,Yin, Ya-Xia.,Wang, Shu-Hua.,Wang, Peng-Fei.,Yang, Xinan.,...&Guo, Yu-Guo.(2018).Trapping Lithium into Hollow Silica Microspheres with a Carbon Nanotube Core for Dendrite-Free Lithium Metal Anodes.NANO LETTERS,18(1),297-301. |
| MLA | Zuo, Tong-Tong,et al."Trapping Lithium into Hollow Silica Microspheres with a Carbon Nanotube Core for Dendrite-Free Lithium Metal Anodes".NANO LETTERS 18.1(2018):297-301. |
入库方式： OAI收割
来源：化学研究所
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