TY - JOUR
T1 - In-situ polymerized high-ionic conductivity vinyl-based copolymer in electrospinning membrane for lithium-ion batteries
AU - Hu, Xiangpan
AU - Ma, Jingyu
AU - Gao, Chenxiang
AU - Ma, Xiaoyan
AU - Wang, Luyao
AU - Chen, Fang
N1 - Publisher Copyright:
© 2025
PY - 2025/8/20
Y1 - 2025/8/20
N2 - The inferior ionic conductivity and high electrode/electrolyte interfacial impedance of solid polymer electrolytes (SPEs) restrict their broader application in solid-state lithium-ion batteries (SSLIBs). Herein, vinyl-based cross-linked solid polymer electrolytes (SPE-PIV) were prepared by in-situ polymerization. Vinylene carbonate (VC) and ionic liquid (1-vinyl-3-isobutyrate ethyl imidazole bis (trifluoromethyl sulfonyl) imide (VBIM-TFSI)) were used as monomers, and octamethyacryl-POSS (octaMA-POSS) was used as the cross-linker with the support of POSS-enhanced PVDF membrane (POSS/PVDF) to prepare SPE-PIV. The POSS brings more stability and more free volume to SPEs. Poly(ionic liquid) possesses greater dielectric constant and higher thermal and chemical stability. So it is found that SPE-PIV, a cross-linked polymer, exhibits superior electrochemical properties with the ionic conductivity of up to 9.02 × 10−4 S cm−1 at 30 °C and an electrochemical stability window of 5.4 V, and a high lithium-ion transference number of 0.64. With the combined benefits of the in-situ polymerization and electrospinning membrane, the interfacial performance was enhanced. This work offers a general strategy for superior electrochemical properties and interfacial performance of SPEs with further insights into high-performance SSLMBs.
AB - The inferior ionic conductivity and high electrode/electrolyte interfacial impedance of solid polymer electrolytes (SPEs) restrict their broader application in solid-state lithium-ion batteries (SSLIBs). Herein, vinyl-based cross-linked solid polymer electrolytes (SPE-PIV) were prepared by in-situ polymerization. Vinylene carbonate (VC) and ionic liquid (1-vinyl-3-isobutyrate ethyl imidazole bis (trifluoromethyl sulfonyl) imide (VBIM-TFSI)) were used as monomers, and octamethyacryl-POSS (octaMA-POSS) was used as the cross-linker with the support of POSS-enhanced PVDF membrane (POSS/PVDF) to prepare SPE-PIV. The POSS brings more stability and more free volume to SPEs. Poly(ionic liquid) possesses greater dielectric constant and higher thermal and chemical stability. So it is found that SPE-PIV, a cross-linked polymer, exhibits superior electrochemical properties with the ionic conductivity of up to 9.02 × 10−4 S cm−1 at 30 °C and an electrochemical stability window of 5.4 V, and a high lithium-ion transference number of 0.64. With the combined benefits of the in-situ polymerization and electrospinning membrane, the interfacial performance was enhanced. This work offers a general strategy for superior electrochemical properties and interfacial performance of SPEs with further insights into high-performance SSLMBs.
KW - In-situ polymerization
KW - Lithium-ion batteries
KW - Poly(ionic liquid)
KW - POSS
KW - Solid polymer electrolyte
UR - http://www.scopus.com/inward/record.url?scp=105003718960&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfa.2025.137016
DO - 10.1016/j.colsurfa.2025.137016
M3 - 文章
AN - SCOPUS:105003718960
SN - 0927-7757
VL - 719
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
M1 - 137016
ER -
