Results 31 to 40 of about 196,474 (265)

Discharge Performances of Li-MnO2/CFx Hybrid Lithium Primary Batteries with Different CFx Contents [PDF]

open access: yes한국정밀공학회지, 2020
Lithium primary cells have the advantages of stable operating voltage, high energy density, long storage life, low discharge rate, and wide operating temperature range.
Hye-Mi So   +4 more
doaj   +1 more source

Synthesis, characterization and electrochemical performance of core/shell structured carbon coated silicon powders for lithium ion battery negative electrodes

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2017
Surface of nano silicon powders were coated with amorphous carbon by pyrolysis of polyacronitrile (PAN) polymer. Microstructural characterization of amorphous carbon coated silicon powders (Si-C) were carried out using scanning electron microscopy (SEM)
Tuğrul Çetinkaya
doaj   +1 more source

Extremely Pure Mg2FeH6 as a Negative Electrode for Lithium Batteries

open access: yesEnergies, 2018
Nanocrystalline samples of Mg-Fe-H were synthesized by mixing of MgH2 and Fe in a 2:1 molar ratio by hand grinding (MIX) or by reactive ball milling (RBM) in a high-pressure vial.
Sergio Brutti   +7 more
doaj   +1 more source

Experimental Study of Discharge Coefficient of Symmetric and Asymmetric Rectangular Labyrinth Weirs

open access: yesعلوم آب و خاک, 2022
The discharge coefficient of labyrinth weirs increases with increasing the crest length in a certain width range. The present research was carried out in a laboratory flume with a length of 8 m, a width of 0.6 m, and a height of 0.6 m.
H. Elahifar   +3 more
doaj  

High performance of solvothermally prepared VO2(B) as anode for aqueous rechargeable lithium batteries [PDF]

open access: yesJournal of the Serbian Chemical Society, 2015
The VO2 (B) was synthesized via a simple solvothermal route at 160oC in ethanol. The initial discharge capacity of VO2 (B) anode, in saturated aqueous solution of LiNO3, was 177 mAh g-1 at a current rate of 50 mA g-1.
Milošević Sanja   +3 more
doaj   +1 more source

Discharge Capacity of Energy Storages as a Function of the Discharge Current–Expanding Peukert’s equation

open access: yesInternational Journal of Electrochemical Science, 2017
In 1897 Wilhelm Peukert tested lead-acid batteries with constant current and observed that a single equation can describe the relationship between the discharge capacity of the battery and a constant discharge current.
Christoph Nebl   +2 more
doaj   +1 more source

Research of Lithium Iron Phosphate as Material of Positive Electrode of Lithium-Ion Battery

open access: yesInternational Journal of Electrochemical Science, 2016
In the present paper, samples of pure and doped lithium iron phosphate composite with the following composition: LiFePO4/C, Li0.99Fe0.98(CrNi)0.01PO4/C were synthesized. The samples were synthesized using the sol-gel method.
A.A. Chekannikov   +5 more
doaj   +1 more source

Standing waves of the stepped dropshaft in a deep tunnel stormwater system

open access: yesWater Science and Technology, 2023
The deep tunnel stormwater system, consisting of dropshafts and underground tunnels, is used to alleviate or prevent urban water problems associated with extreme rainfall events. The stepped dropshaft can transport surface runoff to the tunnels with high
Jingkang Sun   +4 more
doaj   +1 more source

Kinetics and Electrochemical Studies of Fe-substituted LiMnPO4

open access: yesInternational Journal of Electrochemical Science, 2012
A simple sol-gel method was applied to synthesize LiMn(1-x)FexPO4 (x=0-0.5). The kinetics of LiMn(1-x)FexPO4 was studied by chemical delithiation experiment and EIS measurements. The results showed that the LiMn0.6Fe0.4PO4 has the fastest conversion rate
Jiali Liu   +3 more
doaj   +1 more source

Microstructure Changes of Amorphous Mg-Ni-Nd Alloys During Charge/Discharge Cycling and its Thermodynamic Verification

open access: yesInternational Journal of Electrochemical Science, 2011
Amorphous Mg-based hydrogen-storage alloy (Mg70.6Ni29.4)90Nd10 is prepared by melt-spinning. The phase structures of the ribbons before and after charge/discharge cycling are characterized by high-resolution transmission electron microscopy (HRTEM), X ...
Huang Lin-jun   +5 more
doaj   +1 more source

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