Synthesis evidence

A Li+ conductive metal organic framework electrolyte boosts the high-temperature performance of dendrite-free lithium batteries

Chen N., Li Y., Dai Y. et al. · Journal of Materials Chemistry A · 2019 · 9530-9536

5 structured synthesis routes

Completeness describes how fully the route could be reconstructed from the main article and supporting information.

Partial recipeSource: SI

Route 1: Other

SI p1 · Experimental Section - Materials/Synthesis

AdditivesLiTFSI dried at 80 deg C under vacuum for 48 h before glove-box storage
Atmosphereglove box
Work-upMix [Py13][TFSI] with LiTFSI in glove box.
ActivationLiTFSI dried at 80 deg C under vacuum for 48 h.
Show 2 structured reagent records
RoleReagentAmount / concentrationSource
ElectrolyteN-propyl-N-methylpyrrolidinium bis(trifluoromethylsulfonyl) imide ([Py13][TFSI])>99%SI p1 · Experimental Section - Materials/Synthesis
Electrolytelithium bis(trifluoromethylsulfonyl) imide (LiTFSI)>99%SI p1 · Experimental Section - Materials/Synthesis
Complete recipeSource: Both

Route 2: Other

SI p1 · Experimental Section - Synthesis

Metal precursorsZIF-67 scaffold containing Co
Linker precursorsZIF-67 imidazolate framework
Additives[Py13][TFSI]/LiTFSI ionic liquid electrolyte
AtmosphereAr-filled dry box
Time1
Work-upHigh-energy ball milling at 300 r min-1 in zirconia vial; rolled into 50-um-thick film; cut into free-standing pieces.
Scalability contextThe optimum composition is a 2:3 mass ratio of ZIF-67:ILE, equivalent to 1.0 g MOF with 1.5 g ILE.
Show 2 structured reagent records
RoleReagentAmount / concentrationSource
OtherZIF-672 parts by mass; main text comparison uses 1.0 g MOFSI p1 · Experimental Section - Synthesis
ElectrolyteILE ([Py13][TFSI] + LiTFSI)3 parts by mass; main text optimum uses 1.5 g ILE per 1.0 g MOFSI p1 · Experimental Section - Synthesis
Complete recipeSource: Both

Route 3: Other

9532 · Results and discussion · Fig. 1e

Metal precursorsZIF-67 scaffold containing Co
Linker precursorsZIF-67 imidazolate framework
Additives[Py13][TFSI]/LiTFSI ionic liquid electrolyte
AtmosphereAr-filled dry box for ball milling according to SI general method
Time1
Work-upHigh-energy ball milling; loading series prepared with 1.0 g MOF and 2.0, 1.5 or 1.0 g ILE.
Show 2 structured reagent records
RoleReagentAmount / concentrationSource
OtherMOF (ZIF-67)1.0 g9532 · Results and discussion · Fig. 1e
ElectrolyteILE2.0 g, 1.5 g or 1.0 g9532 · Results and discussion · Fig. 1e
Complete recipeSource: SI

Route 4: Other

SI p2 · Assembly and performance testing of LMBs

SolventsN-methyl-2-pyrrolidone (NMP) for electrode slurry
Additives10 wt% acetylene black; 10 wt% PVDF
AtmosphereAr-filled glove box for cell assembly
Temperature80
Time24
Substrate orientationslurry cast onto Al foil
Work-upCathode slurry cast onto Al foil, heated at 80 deg C for 24 h, cut into 11 mm discs, assembled with Li metal and ILE@MOF in CR2032 cell without separator.
Show 4 structured reagent records
RoleReagentAmount / concentrationSource
Otherelectrode material (LiFePO4, LiNi0.33Mn0.33Co0.33O2, LiNi0.8Mn0.1Co0.1O2 or Li4Ti5O12)80 wt%SI p2 · Assembly and performance testing of LMBs
Additiveacetylene black10 wt%SI p2 · Assembly and performance testing of LMBs
AdditivePVDF10 wt%SI p2 · Assembly and performance testing of LMBs
SolventN-methyl-2-pyrrolidoneNot specifiedSI p2 · Assembly and performance testing of LMBs
Complete recipeSource: SI

Route 5: Other

SI p1 · Experimental Section - Synthesis

Metal precursorsCo(NO3)2.6H2O (8.22 g, 99.99%, J&K Chemicals)
Linker precursors2-methyl imidazole (18.5 g, 99%, J&K Chemicals)
SolventsAnhydrous methanol, 400 mL for each precursor solution
Atmospherenot specified
Temperature25
Timeovernight
Work-upSolutions mixed by peristaltic pump at 100 mL min-1; purple precipitate collected by centrifugation at 5 deg C.
ActivationDried at 60 deg C for 24 h.
Scalability contextUses 400 mL methanol solutions and pump mixing; gram-scale precursor masses reported.
Show 3 structured reagent records
RoleReagentAmount / concentrationSource
Metal SourceCo(NO3)2.6H2O8.22 gSI p1 · Experimental Section - Synthesis
Linker2-methyl imidazole18.5 gSI p1 · Experimental Section - Synthesis
Solventanhydrous methanol400 mL quantities for each solutionSI p1 · Experimental Section - Synthesis