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Shuai Y, Lou J, Pei X, Su C, Ye X, Zhang L, Wang Y, Xu Z, Gao P, He S, Wang Z, Chen K. Constructing an In Situ Polymer Electrolyte and a Na-Rich Artificial SEI Layer toward Practical Solid-State Na Metal Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:45382-45391. [PMID: 36170595 DOI: 10.1021/acsami.2c12518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sodium is one of the most promising anode candidates for the beyond-lithium-ion batteries. The development of Na metal batteries with a high energy density, high safety, and low cost is desirable to meet the requirements of both portable and stationary electrical energy storage. However, several problems caused by the unstable Na metal anode and the unsafe liquid electrolyte severely hinder their practical applications. Herein, we report a facile but effective methodology to construct an in situ polymer electrolyte and Na-rich artificial solid-electrolyte interface (SEI) layer concurrently. The obtained integrated Na metal batteries display long cycling life and admirable dynamic performance with total inhibition of dendrites, excellent contact of the cathode/polymer electrolyte, and reduction of side reactions during cycling. The modified Na metal electrode with the in situ polymer electrolyte is stable and dendrite-free in repeated plating/stripping processes with a life span of above 1000 h. Moreover, this method is compatible with different cathodes that demonstrate outstanding electrochemical performance in full cells. We believe that this approach provides a practical solution to solid-state Na metal batteries.
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Affiliation(s)
- Yi Shuai
- School of Resources and Environment, Carbon Neutralization Research Institute, Hunan University of Technology and Business, Changsha 410083, China
| | - Jin Lou
- School of Resources and Environment, Carbon Neutralization Research Institute, Hunan University of Technology and Business, Changsha 410083, China
- Light Alloy Research Institute, Central South University, Changsha 410083, China
| | - Xianglin Pei
- School of Resources and Environment, Carbon Neutralization Research Institute, Hunan University of Technology and Business, Changsha 410083, China
| | - Changqing Su
- School of Resources and Environment, Carbon Neutralization Research Institute, Hunan University of Technology and Business, Changsha 410083, China
| | - Xiaosheng Ye
- School of Resources and Environment, Carbon Neutralization Research Institute, Hunan University of Technology and Business, Changsha 410083, China
| | - Limin Zhang
- School of Resources and Environment, Carbon Neutralization Research Institute, Hunan University of Technology and Business, Changsha 410083, China
| | - Yu Wang
- Department of Biomedical Engineering, Changzhi Medical College, Changzhi 046000, China
| | - Zhixin Xu
- Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Pingping Gao
- Light Alloy Research Institute, Central South University, Changsha 410083, China
| | - Shijie He
- Light Alloy Research Institute, Central South University, Changsha 410083, China
| | - Zhilong Wang
- Light Alloy Research Institute, Central South University, Changsha 410083, China
| | - Kanghua Chen
- Light Alloy Research Institute, Central South University, Changsha 410083, China
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