Abstract:Comprehensive SummaryThe ever‐growing demand for next‐generation high‐energy‐density devices drives the development of lithium metal batteries with enough safety and high performance, in which quasi‐solid‐state composite electrolytes (QSCEs) with high ionic conductivity and lithium ion transference number () are highly desirable. Herein, we successfully synthesize a kind of two‐dimensional (2D) molecular brush (GO‐g‐PFIL) via grafting poly(ionic liquid) side‐chain (poly(3‐(3,3,4,4,4‐pentafluorobutyl)‐1‐vinyl‐1… Show more
“…Further modification of inorganic ceramic fillers can effectively solve interface problems and promote uniform dispersion of inorganic fillers in polymer matrices. CPEs have the advantages of both pure inorganic ceramics, as well as pure organic polymer electrolytes, exhibiting excellent flexibility, high ionic conductivity, and good contact with electrodes [ 14 , 15 , 16 , 17 , 18 ]. Moreover, as the composite solid electrolyte inherits the flexibility and processability of the polymer matrix, it can adapt to the large-scale manufacturing process of traditional lithium-ion batteries [ 19 ].…”
Herein, ZIF-8 inorganic particles with different sized reinforced poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) solid composite polymer electrolytes (PVDF-HFP/10%ZIF-8) were prepared via a facile blade-coating approach, and free-standing quasi solid-state composite electrolytes (PVDF-HFP/10%ZIF-8(0.6)/Plasticizer, abbreviated as PH/10%ZIF-8(0.6)/P), were further obtained through the introduction of plasticizer. Optimized PH/10%ZIF-8(0.6)/P exhibited a high ionic conductivity of 2.8 × 10−4 S cm−1 at 30 °C, and superior Li+ transfer number of 0.89 with an ultrathin thickness (26 µm). Therefore, PH/10%ZIF-8(0.6)/P could effectively inhibit the growth of lithium dendrites, and the assembled Li/LiFePO4 cell delivered good cycling stability with a capacity retention rate of 89.1% after 100 cycles at 0.5 C.
“…Further modification of inorganic ceramic fillers can effectively solve interface problems and promote uniform dispersion of inorganic fillers in polymer matrices. CPEs have the advantages of both pure inorganic ceramics, as well as pure organic polymer electrolytes, exhibiting excellent flexibility, high ionic conductivity, and good contact with electrodes [ 14 , 15 , 16 , 17 , 18 ]. Moreover, as the composite solid electrolyte inherits the flexibility and processability of the polymer matrix, it can adapt to the large-scale manufacturing process of traditional lithium-ion batteries [ 19 ].…”
Herein, ZIF-8 inorganic particles with different sized reinforced poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) solid composite polymer electrolytes (PVDF-HFP/10%ZIF-8) were prepared via a facile blade-coating approach, and free-standing quasi solid-state composite electrolytes (PVDF-HFP/10%ZIF-8(0.6)/Plasticizer, abbreviated as PH/10%ZIF-8(0.6)/P), were further obtained through the introduction of plasticizer. Optimized PH/10%ZIF-8(0.6)/P exhibited a high ionic conductivity of 2.8 × 10−4 S cm−1 at 30 °C, and superior Li+ transfer number of 0.89 with an ultrathin thickness (26 µm). Therefore, PH/10%ZIF-8(0.6)/P could effectively inhibit the growth of lithium dendrites, and the assembled Li/LiFePO4 cell delivered good cycling stability with a capacity retention rate of 89.1% after 100 cycles at 0.5 C.
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