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Semi-automatic Winding Machine
Dec 19 , 2020
Product model:TMAX-DSP-LBPBM05B A. Functional Description： This machine is mainly used for precise winding of cylindrical lithium-ion battery batteries. The working process is as follows: the positive and negative plates are manually introduced into the winding part, separated from the diaphragm, winded according to the technological requirements, automatically pasted the termination tape, and the...
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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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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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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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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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An Approach to Make Macroporous Metal Sheets as Current Collectors for Lithium-Ion Batteries
Jun 23 , 2021
The freestanding, laminated film was sintered in air by increasing the temperature of the furnace at a slow rate to 1000°C, holding at1000°C for 1 h, and then decreasing the temperature at a rate of5°C/min to room temperature. This high temperature treatment was done to completely burn all carbon and organic materials to generate a porous structure and to simultaneously allow CuO particles to conn...
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Effects of the Mixing of an Active Material and a Conductive Additive on the Electric Double Layer Capacitor Performance in Organic Electrolyte
Jun 25 , 2021
2. Experimental Procedure Activated carbon(MSP-20) for an active electrode material was provided from Kansai Coke & Chemicals Co.. Super-P(M.M.M. Carbon Co., Belgium) and polyvinylidene fluoride(Sigma-Aldrich) were employed as a conductive additive and a binder, respectively. The preparation procedure for a coin-type EDLC cell was briefly presented in Fig. 1. Active materia...
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Monolithic Nanoporous Zn Anode for Rechargeable Alkaline Batteries
Jun 28 , 2021
Congcheng Wang,# Guoyin Zhu,# Pan Liu, and Qing Chen* METHODS Battery Assembly and Testing. Ni−Zn batteries were assembled into coin-type cells (CR2032) with a Zn anode, either the compressed nanoporous Zn (∼0.36 cm2 in size) or a pasted electrode comprising Zn powder (90 wt %, Aldrich), polyvinylidene fluoride (Arkema Kynar), and a NiOOH cathode (650 mAh, GP Batteries). Tin foil was used as the a...
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Effect of entropy change of lithium intercalation in cathodes and anodes on Li-ion battery thermal management
Jun 30 , 2021
Vilayanur V. Viswanathan∗, Daiwon Choi, Donghai Wang11, Wu Xu, Silas Towne, Ralph E. Williford, Ji-Guang Zhang, Jun Liu, Zhenguo Yang 3. Experiment 3.1. Electrode synthesis Nanosized LiFePO4 was synthesized using LiCoOCH3•2H2O(reagent grade, Sigma), FeCO2•2H2O (99%, Aldrich), (NH4)H2PO4(99.999%, Sigma–Aldrich), oleic acid (FCC, FG) and paraffin wax(ASTM D 87, mp. 53–57◦C, Aldrich). (NH4)H2PO4 was ...
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