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Effect of Conducting Salts in Ionic Liquid based Electrolytes: Viscosity, Conductivity, and Li-Ion Cell Studies
Jun 16 , 2021
Andreas Hofmann1,*, Michael Schulz1, Thomas Hanemann1,2 2. EXPERIMENTAL N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium bis(trifluoromethanesulfonyl)azanide (DMMA-TFSA, IoLiTec, >99%), lithium bis(trifluoromethanesulfonyl)azanide (LiTFSA, IoLiTec, > 99%), and propylene carbonate (PC, Sigma-Aldrich, anhydrous, 99.7%) were dried at 110°C by means of a continuous flow of dried air. The water co...
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Synthesis, characterization, and evaluation of unsupported porous NiS submicrometer spheres as a cathode material for lithium batteries
Jun 18 , 2021
Debajyoti Mondal•Gilles Villemure•Chaojie Song 2.2 Synthesis of porous NiS submicrospheres The USP procedure for the synthesis of nanomaterials wasreported elsewhere [54]. A solution containingNiCl26H2O, Na2S2O35H2O, and colloidal silica was prepared according to a procedure reported in our previouspaper [55]. The solution was loaded to a USP ultrasonic cell, after which the system was purged with...
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The Influence of Polyvinylidene Fluoride (PVDF) Binder Properties on LiNi0.33Co0.33Mn0.33O2(NMC) Electrodes Made by a Dry-PowderCoating Process
Jun 21 , 2021
To cite this article: Ming Wang et al 2019 J. Electrochem. Soc. 166 A2151 Preparation of electrodes.—A manually operated powder coatingspray gun (Encore LT Manual Powder Coating System, Nordson) was used for the ESD process. One piece of 16μm thick aluminum foil was used as the electrode substrate, one piece of electrically grounded Cuplate (250μm thick) was used as the platform. The operation vol...
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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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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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Reinvestigation on the state-of-the-art nonaqueous carbonate electrolytes for 5 V Li-ion battery applications
Jul 02 , 2021
2. Experimental 2.1. Electrolyte and electrode preparation Battery-grade ethylene carbonate (EC), propylene carbonate(PC), dimethyl carbonate (DMC), ethyl methyl carbonate (EMC),diethyl carbonate (DEC), and lithium hexafluorophosphate (LiPF6)were purchased from Novolyte Technologies. Lithium foil (0.75 mmthick) was purchased from Alfa Aesar. All chemicals and materials were used as received. Elect...
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EXPERIMENTS AND ANALYSIS OF EVAPORATION IN ELECTRODE PROCESSING FOR ENERGY STORAGE
Jul 05 , 2021
Experimental Equipment Electrode processing can be broken up into five main sections: dry powder mixing, wet mixing, substrate preparation, film application, and drying. The equipment and preparation stations utilized in this study are presented herein. A visual overview of the ETSL experimental facility can be seen in Figure 2. The electrode substrate and slurry preparation station is shown in Fi...
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LiPF3(CF2CF3)(3): A salt for rechargeable lithium ion batteries
Jul 07 , 2021
J. S. Gnanaraj,a M. D. Levi,a,* Y. Gofer,a D. Aurbach,a,*,z and M. Schmidtb aDepartment of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel bMerck KGaA, D-64293 Darmstadt, Germany Experimental All the work was performed under a highly pure argon atmosphere in standard vacuum glove box from Xiamen TMAX Battery Equipments Limited. The anodes were composed of synthetic graphite (KS-6) from Tim...
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Lithium Ion Conducting Polymerized Ionic Liquid Pentablock Terpolymers as Solid-State Electrolytes
Jul 12 , 2021
Abstract In this study, a lithium ion conducting polymerized ionic liquid pentablock terpolymer (PILPTP) was investigated as a battery electrolyte (Xiamen Tmaxcn Inc.) for lithium ion batteries. The ABCBA pentablock terpolymer, poly(tbS-b-EP-b-MS-b-EP-b-tbS) (tbS = tert-butyl-styrene; EP = ethylene-r-propylene; MS = 4-methylstyrene), was brominated and quaternized to covalently attach two dif...
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