TY - JOUR
T1 - Low-cost and high-safety montmorillonite-based solid electrolyte for lithium metal batteries
AU - Zhou, Shusen
AU - Han, Zhangkuo
AU - Wang, Xiaofei
AU - Liu, Xin
AU - Hao, Huiying
AU - Xing, Jie
AU - Dong, Jingjing
AU - Liu, Hao
AU - Liao, Libing
N1 - Publisher Copyright:
© 2024
PY - 2024/4
Y1 - 2024/4
N2 - Composite solid-state electrolyte have good interfacial compatibility and mechanical properties, but their safety (such as easy to catch fire) and economic cost are still problems. In present work, an composite solid-state electrolyte was prepared by inserting poly(vinylidene fluoride)-based polymer electrolyte matrix into the interlayer of a low cost clay mineral-montmorillonite. The composite electrolyte exhibited remarkable characteristics, including excellent flame retardancy, high room temperature ionic conductivity of 2.28 × 10−4 S cm−1, wide electrochemical stability window of 4.8 V, high lithium-ion transference number of 0.57 and good mechanical strength of 12.58 MPa. Furthermore, LiFePO4-based solid-state battery, utilizing this composite solid-state electrolyte, exhibited stable cycling with discharge specific capacity of 130 mAh g−1 for over 100 cycles at a rate of 0.5C at room temperature. This successful performance demonstrated the potential of utilizing low-cost and environmentally friendly raw clay mineral materials in high energy density solid-state battery applications.
AB - Composite solid-state electrolyte have good interfacial compatibility and mechanical properties, but their safety (such as easy to catch fire) and economic cost are still problems. In present work, an composite solid-state electrolyte was prepared by inserting poly(vinylidene fluoride)-based polymer electrolyte matrix into the interlayer of a low cost clay mineral-montmorillonite. The composite electrolyte exhibited remarkable characteristics, including excellent flame retardancy, high room temperature ionic conductivity of 2.28 × 10−4 S cm−1, wide electrochemical stability window of 4.8 V, high lithium-ion transference number of 0.57 and good mechanical strength of 12.58 MPa. Furthermore, LiFePO4-based solid-state battery, utilizing this composite solid-state electrolyte, exhibited stable cycling with discharge specific capacity of 130 mAh g−1 for over 100 cycles at a rate of 0.5C at room temperature. This successful performance demonstrated the potential of utilizing low-cost and environmentally friendly raw clay mineral materials in high energy density solid-state battery applications.
KW - Clay mineral
KW - Composite solid-state electrolyte
KW - Montmorillonite
KW - Solid-state lithium metal batteries
UR - http://www.scopus.com/inward/record.url?scp=85186958992&partnerID=8YFLogxK
U2 - 10.1016/j.clay.2024.107329
DO - 10.1016/j.clay.2024.107329
M3 - Article
AN - SCOPUS:85186958992
SN - 0169-1317
VL - 251
JO - Applied Clay Science
JF - Applied Clay Science
M1 - 107329
ER -