An ion-conductive Li1.5Al0.5Ge1.5(PO4)(3)-based composite protective layer for lithium metal anode in lithium-sulfur batteries
文献类型：期刊论文
| 作者 | Sun, Changzhi1; Huang, Xiao1; Jin, Jun; Lu, Yang1; Wang, Qing1; Yang, Jianhua; Wen, Zhaoyin1 |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2018 |
| 卷号 | 377页码:36 |
| 关键词 | Ion-conductive LAGP Li metal anode Composite protective layer Li-S battery |
| ISSN号 | 0378-7753 |
| DOI | 10.1016/j.jpowsour.2017.11.063 |
| 英文摘要 | Lithium (Li) metal plays an indispensable role in Li-S batteries, but its fast degradation seriously impedes the practical application of Li-S batteries. Here, an ion-conductive LAGP-based composite protective layer (CPL) consisting of lithium aluminum germanium phosphate (Li1.5Al0.5Ge1.5(PO4)(3)) and polyvinylidene fluoride (PVDF) is prepared on Li metal anode via a facile casting method. In the presence of LAGP, the negative effect of CPL on the diffusion of Li+ is minimized. Hence, it can not only effectively resist corrosive action of lithium polysulfides (LiPSs) on Li metal anode, but also reduce interfacial polarization and restrain dendritic Li growth. The protected Li anode exhibits exceptional cycling stability and low voltage polarization (similar to 30 mV at 0.5 mA cm(-2)) for 300 h. The electrochemical performance of Li-S batteries with protected Li anode is also greatly enhanced. The discharge specific capacity of 832.1 mAh g(-1) and an average coulombic efficiency of 92% are obtained for up to 100 cycles at 0.5 C in LiNO3-free electrolyte. Additionally, the rate capability of Li-S batteries is significantly improved, delivering a reversible capacity of 565 mAh g(-1) at 4 C. Our results also indicate this protection strategy can be extended to the Li-S pouch cells. |
| 学科主题 | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000424070900006 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | This work was supported by the National Natural Science Foundation of China (NSFC) project No. 51772135, No. 51402330, and No. 51472261. Prof. B. V. R. Chowdari (Department of Physics, National University of Singapore) is greatly acknowledged for helpful discussion. ; This work was supported by the National Natural Science Foundation of China (NSFC) project No. 51772135, No. 51402330, and No. 51472261. Prof. B. V. R. Chowdari (Department of Physics, National University of Singapore) is greatly acknowledged for helpful discussion. |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24480]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Changzhi,Huang, Xiao,Jin, Jun,et al. An ion-conductive Li1.5Al0.5Ge1.5(PO4)(3)-based composite protective layer for lithium metal anode in lithium-sulfur batteries[J]. JOURNAL OF POWER SOURCES,2018,377:36, 43. |
| APA | Sun, Changzhi.,Huang, Xiao.,Jin, Jun.,Lu, Yang.,Wang, Qing.,...&Wen, Zhaoyin.(2018).An ion-conductive Li1.5Al0.5Ge1.5(PO4)(3)-based composite protective layer for lithium metal anode in lithium-sulfur batteries.JOURNAL OF POWER SOURCES,377,36. |
| MLA | Sun, Changzhi,et al."An ion-conductive Li1.5Al0.5Ge1.5(PO4)(3)-based composite protective layer for lithium metal anode in lithium-sulfur batteries".JOURNAL OF POWER SOURCES 377(2018):36. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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