Synergistic nanocomposite polymer electrolytes for advanced all-solid-state sodium-ion batteries

被引:2
作者
Kannadasan, Mahalakshmi [1 ]
Sathiasivan, Kiruthika [2 ]
Pandurangan, Ilakkiya [1 ]
Balakrishnan, Muthukumaran [1 ]
机构
[1] Univ Madras, Presidency Coll Autonomous, Dept Chem, Chennai 600005, India
[2] SRM Inst Sci & Technol, Coll Engn & Technol, Dept Chem Engn, Chennai, India
关键词
All-solid-state sodium-ion battery; Polyethylene oxide; Sodium percarbonate polymer solid composite; electrolyte; High discharge capacity; PERFORMANCE; METAL;
D O I
10.1016/j.ijhydene.2024.06.305
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Polymer solid composite electrolyte (PSCE) has gained significant attention due to its superior ion conductivity and compatibility with electrodes compared to inorganic solid-state electrolytes, as well as its better safety compared to liquid electrolytes. In this study, Na3Zr2Si2PO12 (NZSP) nanoparticles are synthesized with polyethylene oxide (PEO) and sodium percarbonate (SPC)-based PSCE. The resulting material is evaluated for its application performances in all-solid-state sodium-ion batteries (ASSBs). The addition of Na3Zr2Si2PO12 filler reduces the polymer matrix's crystallinity and decreases the formation of sodium dendrites. As a result, the PSCE delivers an enlarged electrochemical window stability of 4.8 V and improved ion conductivity that can reach as high as 2.6 x 10-4 SCm- 1. When applied in ASSBs, the resulting PSCE shows a high first discharge capacity of 75.4 mAh g- 1 at 0.2C and a promising faradaic efficiency of 97% (for 100 cycles). These results indicate that PEO-SPC-NZSP based PSCE can be significantly improved by adding Na3Zr2Si2PO12 filler, thus enabling its practical application as a form of energy storage.
引用
收藏
页码:634 / 641
页数:8
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