Sodium gallium alloy layer for fast and reversible sodium deposition

Lv, Xiang1; Tang, Fang1; Yao, Yu2; Xu, Chen3; Chen, Dong1; Liu, Lin1; Feng, Yuezhan4; Rui, Xianhong1; Yu, Yan2

2022-12-01

10.1002/sus2.97

SUSMAT   Impact Factor & Quartile

2766-8479

2692-4552

Sodium metal has been regarded as the potential alternative for metal batteries owing to its advantages of high theoretical capacity and abundant reserves. Nevertheless, propagation of Na dendrites can boost the interfacial instability of Na metal, retarding its practical implementation. Thus, the Na-Ga alloy layer is designed and fabricated by in situ rolling of metal Ga on the surface of Na metal. This alloy layer possesses good sodiophilicity, which can effectively protect Na metal and favor the uniform Na+ deposition, obtaining the inhibition of Na dendrites growth. Consequently, the symmetric cells assembled by the alloylayer protected Na metal electrodes (NGAL-Na parallel to NGAL-Na) have a long lifetime (468 h) even under a high plating/stripping capacity of 6 mAh cm(-2) in carbonate electrolyte. The full battery of NGAL-Na parallel to Na3V4PO4)(3) is able to sustain an excellent rate capability of 100 mAh g(-1) after 500 cycles at 10 C under ambient temperature. This work provides a new route to prevent metal anodes from severe dendrite growth, and paves the way toward safer and stable-performing metal-based rechargeable batteries.

dendrite-free morphology Na-Ga alloy sodium metal anode

ESCI

English

Others

National Natural Science Foundation of China["52222210","51925207","U1910210","52161145101","51872277","51972067","51902062","52002083"] ; "Transformational Technologies for Clean Energy and Demonstration" Strategic Priority Research Program of Chinese Academy of Sciences[XDA21000000] ; National Synchrotron Radiation Laboratory[KY2060000173] ; Yulin University[2021002] ; Dalian National Laboratory for Clean Energy[2021002] ; Fundamental Research Funds for the Central Universities[WK2060140026] ; Guangdong Natural Science Funds for Distinguished Young Scholar[2019B151502039] ; Shenzhen Science and Technology Innovation Commission[JCYJ20190809164209485]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Materials Science, Multidisciplinary

WOS:000897538700004

WILEY

Web of Science

1.Guangdong Univ Technol, Sch Mat & Energy, Guangdong Prov Key Lab Funct Soft Condensed Matte, Guangzhou 510006, Peoples R China
2.Univ Sci & Technol China, CAS Key Lab Mat Energy Convers, Hefei Natl Res Ctr Phys Sci Microscale, Dept Mat Sci & Engn,Natl Synchrotron Radiat Lab, Hefei 230026, Anhui, Peoples R China
3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen, Peoples R China
4.Zhengzhou Univ, Minist Educ, Key Lab Mat Proc & Mold, Zhengzhou, Peoples R China

Lv, Xiang,Tang, Fang,Yao, Yu,et al. Sodium gallium alloy layer for fast and reversible sodium deposition[J]. SUSMAT,2022,2(6).

Lv, Xiang.,Tang, Fang.,Yao, Yu.,Xu, Chen.,Chen, Dong.,...&Yu, Yan.(2022).Sodium gallium alloy layer for fast and reversible sodium deposition.SUSMAT,2(6).

Lv, Xiang,et al."Sodium gallium alloy layer for fast and reversible sodium deposition".SUSMAT 2.6(2022).