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Air Dehydration Membranes for Nonaqueous Lithium–Air Batteries
May 28 , 2021
Jian Zhang, Wu Xu,* Xiaohong Li, and Wei Liuz PTFE thin film coated on the porous metal substrate sheet.— In the third stage of our membrane development, the PTFE membranes were coated onto the metal substrates by spin coating with DuPont PTFE TE-3859 fluoropolymer resin. The resin is anegatively charged, hydrophobic colloid containing approximately60% by total weight of 0.05–0.5 m PTFE particles ...
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On the use of LiPF3(CF2CF3)3 (LiFAP) solutions for Li-ion batteries. Electrochemical and thermal studies
May 26 , 2021
J.S. Gnanaraja, E. Zinigrada, L. Asrafa, M. Sprechera, H.E. Gottlieba,W. Geissler b, M. Schmidtb, D. Aurbacha,* aDepartment of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel b Merck KGaA, D-64293 Darmstadt, Germany Received 4 August 2003; received in revised form 27 August 2003; accepted 27 August 2003 Published online: 2 October 2003 In the ARC tests, two milliliters of solution was plac...
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The stability of organic solvents and carbon electrode in nonaqueous Li-O2 batteries
May 21 , 2021
2. Experimental 2.1. Preparation and cell testing Ethylene carbonate (EC), propylene carbonate (PC), DME,tri(ethylene glycol) dimethyl ether (i.e., Triglyme), di(ethyleneglycol) di-n-butyl ether (i.e. butyl diglyme, BDG), and lithiumbis(trifluoromethylsulfonyl)imide (LiTFSI) (all in batterygrade) were purchased from Novolyte Technologies. DMSO,triethyl phosphate (TEPa), 1-butyl-1-methylpyrrolidium...
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Autonomic Shutdown of Lithium-Ion Batteries Using Thermoresponsive Microspheres
May 19 , 2021
Marta Baginska , Benjamin J. Blaiszik , Ryan J. Merriman , Nancy R. Sottos , Jeffrey S. Moore , and Scott R. White * 4. Experimental Section Materials and Equipment : Low-density poly(ethylene) (LDPE, Mw = 4000, m.p. 110 ° C), Brij 76 surfactant, and sodium dodecyl sulfate (SDS), paraffifi n wax (m.p. 58–60 ° C), and n-methylpyrrolidone (NMP) solvent were purchased from Sigma-Aldrich. Xylene was p...
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A comparison among LiPF6, LiPF3(CF2CF3)3 (LiFAP), and LiN(SO2CF2CF3)2 (LiBETI) solutions: electrochemical and thermal studies
May 17 , 2021
J.S. Gnanaraja, E. Zinigrada, M.D. Levia, D. Aurbacha,*, M. Schmidtb a Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel b Merck KGaA, D-64293 Darmstadt, Germany 2.Experimental The electrolyte solutions used were 1 M LiFAP, 1 MLiPF6, and 1 M LiN(SO2CF2CF3)2in a ternary solvent mixture EC+DEC+DMC (2:1:2) from Merck KGaA (highly pure solutions, Li battery grade, could be used as ...
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Graphene-enhanced electrodes for scalable supercapacitors
May 14 , 2021
School of Electrical and Electronic Engineering, The University of Manchester, M13 9PL, Manchester, England, UK School of Materials, The University of Manchester, M13 9PL, Manchester, England, UK School of Chemistry, The University of Manchester, M13 9PL, Manchester, England, UK Graphene was produced by anodic electrochemical exfoliation according to the previous report by Müllen et al. using 0.1...
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Electrode preparation and cell test
May 12 , 2021
Super P conductive carbon , polyvinylidene fluoride , and Clevios_ P solution (CP,from H. C. Starck, Inc.) were used as received. Sodium (Na) salt of carboxymethyl cellulose (NaCMC, with a typical molecular weight of 250 000 and degree of substitution of 0.90) was purchased from Sigma-Aldrich. The Li salt of CMC (LiCMC)was obtained by passing the NaCMC solution through a column of strongly acidic ...
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Coin cell Supercapacitors Based on CVD Grown & Vertically Aligned Carbon Nanofibers
May 12 , 2021
A schematic diagram of the assembly (Figure 1) shows the components of the coin-cell (20 mm diameter and 3.2 mm thickness) SCs. Three SS, 18Cr9Ni from RECORD, discs pairs were used for VACNFs growth which also worked as current collectors. The diameter and thickness of the discs in the pair was different. A standard coin cell disc punching machine (Xiamen Tmaxcn Inc.)1 mm thick and 16 mm diameter ...
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Deaerator/Mixing machine/Defoamer
Nov 14 , 2020
The defoamer is a kind of mixing equipment for mixing basic materials and discharging foam. It is mainly used in the mixing and mixing fields of high, sharp and fine products such as LED, TP, medical devices, electronic components, nano powder materials, fine chemical materials, printed electronic materials, electronic packaging materials and new energy materials, such as phosphor and si...
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