TY - JOUR
T1 - Flame-retardant gel polymer electrolyte and interface for quasi-solid-state sodium ion batteries
AU - Chen, Guanghai
AU - Zhang, Kun
AU - Liu, Yiran
AU - Ye, Lin
AU - Gao, Yongsheng
AU - Lin, Weiran
AU - Xu, Huajie
AU - Wang, Xinran
AU - Bai, Ying
AU - Wu, Chuan
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Polymer electrolyte is favored in battery research because of its good flexibility, light weight and preferable interfacial contact. However, the development of which is hindered by the low ionic conductivity at room temperature. Herein, a flexible PPEGMA-based gel polymer electrolyte (PGT32-5%) was prepared via in-situ thermal cured technique, plasticized by nonflammable triethyl phosphate and supported by glass fiber. The optimized flame-retardant electrolyte, PGT32-5%, exhibits a high ionic conductivity (0.91 mS cm−1 at 27 °C and a wide electrochemical window (4.8 V). And an artificial interface between polymer and Na metal anode was built to guarantee the superior cycling stability (capacity retention of 91% after 400 cycles) of quasi-solid-state Na3V2(PO4)3|PGT32-5%|Na battery. Further, the interfacial property and effect on discharge behavior were analyzed in depth, which paves the way for designing polymer electrolytes with superior comprehensive performances in future.
AB - Polymer electrolyte is favored in battery research because of its good flexibility, light weight and preferable interfacial contact. However, the development of which is hindered by the low ionic conductivity at room temperature. Herein, a flexible PPEGMA-based gel polymer electrolyte (PGT32-5%) was prepared via in-situ thermal cured technique, plasticized by nonflammable triethyl phosphate and supported by glass fiber. The optimized flame-retardant electrolyte, PGT32-5%, exhibits a high ionic conductivity (0.91 mS cm−1 at 27 °C and a wide electrochemical window (4.8 V). And an artificial interface between polymer and Na metal anode was built to guarantee the superior cycling stability (capacity retention of 91% after 400 cycles) of quasi-solid-state Na3V2(PO4)3|PGT32-5%|Na battery. Further, the interfacial property and effect on discharge behavior were analyzed in depth, which paves the way for designing polymer electrolytes with superior comprehensive performances in future.
KW - Flame-retardant
KW - Gel polymer electrolyte
KW - In-situ thermal cured
KW - Interface
KW - Quasi-solid-state sodium ion batteries
UR - http://www.scopus.com/inward/record.url?scp=85087215296&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2020.126065
DO - 10.1016/j.cej.2020.126065
M3 - Article
AN - SCOPUS:85087215296
SN - 1385-8947
VL - 401
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 126065
ER -