Мақола

Electrolyte Chemistry toward Ultrawide-Temperature (−25 to 75 °C) Sodium-Ion Batteries Achieved by Phosphorus/Silicon-Synergistic Interphase Manipulation

Haojie LiangDepartment of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. ChinaHan‐Hao LiuMOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, P. R. ChinaXin-Xin ZhaoDepartment of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. ChinaZhen‐Yi GuMOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, P. R. ChinaJialin YangMOE Key Laboratory for UV Light-Emitting Materials and Technology, Northeast Normal University, Changchun, Jilin 130024, P. R. ChinaXinyi ZhangDepartment of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. ChinaZhiming LiuQingdao University of Science and Technology, Qingdao, Shandong 260061, ChinaYuanzheng TangQingdao University of Science and Technology, Qingdao, Shandong 260061, ChinaJingping ZhangDepartment of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. ChinaXing‐Long WuDepartment of Chemistry, Northeast Normal University, Changchun, Jilin 130024, P. R. China

2024en

ABI

Аннотация

All-weather operation is considered an ultimate pursuit of the practical development of sodium-ion batteries (SIBs), however, blocked by a lack of suitable electrolytes at present. Herein, by introducing synergistic manipulation mechanisms driven by phosphorus/silicon involvement, the compact electrode/electrolyte interphases are endowed with improved interfacial Na-ion transport kinetics and desirable structural/thermal stability. Therefore, the modified carbonate-based electrolyte successfully enables all-weather adaptability for long-term operation over a wide temperature range. As a verification, the half-cells using the designed electrolyte operate stably over a temperature range of −25 to 75 °C, accompanied by a capacity retention rate exceeding 70% even after 1700 cycles at 60 °C. More importantly, the full cells assembled with Na3V2(PO4)2O2F cathode and hard carbon anode also have excellent cycling stability, exceeding 500 and 1000 cycles at −25 to 50 °C and superb temperature adaptability during all-weather dynamic testing with continuous temperature change. In short, this work proposes an advanced interfacial regulation strategy targeted at the all-climate SIB operation, which is of good practicability and reference significance.

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DOI: 10.1021/jacs.3c11776

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