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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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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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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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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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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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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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Optimization of Nonaqueous Electrolytes for Primary Lithium/Air Batteries Operated in Ambient Environment
May 31 , 2021
Wu Xu,*,z Jie Xiao,** Jian Zhang, Deyu Wang,** and Ji-Guang Zhang* Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, Washington 99354,USA Li/air coin cell assembly (xiamen Tmaxcn Inc.)— The air electrode sheet was die cut into circular disks with a small piece of Ni tab. The air electrode disks had a diameter of 1.59 cm and an area of 1.98 cm2. 2325 coin cell kit...
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Improving the high-temperature performance of LiMn2O4 spinel electrodes by coating the active mass with MgO via asonochemical method
Jun 02 , 2021
J.S. Gnanaraj, V.G. Pol, A. Gedanken, D. Aurbach * Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel Received 6 August 2003; accepted 19 August 2003 Published online: 30 September 2003 2. Experimental For surface analysis studies, we used a Magna 860(Nicolet) FTIR spectrometer placed in a vacuum glove box (xiamen Tmaxcn Inc) under H2O and CO2-free atmosphere (fed by compr...
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Reaction mechanisms for the limited reversibility of Li–O2 chemistry in organic carbonate electrolytes
Jun 07 , 2021
Wu Xua,∗, Kang Xub, Vilayanur V. Viswanathana, Silas A. Townea, John S. Hardya, Jie Xiaoa, Zimin Niea,Dehong Huc, Deyu Wanga,1, Ji-Guang Zhanga,∗∗ a Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, United States b Sensors and Electron Devices Directorate, U.S. Army Research Laboratory, Adelphi, MD 20783, United States c Fundamental and Computational Sc...
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IPv6 network supported
