Temat: NiMH - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Simulating energy management in a lightweight hybrid vehicle with fuel cells and nickel metal hydride (NiMH) batteries
Autorzy:: Harahap, Dedy Ramdhani
Chang, Wei-Chin
Chiu, Chun Chieh
Tang, Jing-Jou
Powiązania:: https://bibliotekanauki.pl/articles/27324351.pdf
Data publikacji:: 2023
Wydawca:: Instytut Techniki Górniczej KOMAG
Tematy:: hybrid vehicle
PEM fuel cell
NiMH battery
energy management strategy
zarządzanie energią
strategia
pojazd hybrydowy
Opis:: A compact electric vehicle was simulated utilizing the Advanced Vehicle Simulator (ADVISOR), a MATLAB/Simulink-based program. The primary power source for the vehicle was a 200W small Proton Exchange Membrane (PEM) fuel cell, complemented by AA-type Nickel Metal Hydride (NiMH) batteries serving as backup energy sources. Each NiMH battery had a voltage of 1.2V and a capacity of 1.9Ah. The performance of both the PEM fuel cell and the NiMH batteries was evaluated using an electronic load to meet the power requirements of the hybrid vehicle. The hybrid vehicle operated in three distinct modes: Starting Mode, Accelerating Mode, and Steady Mode, each with its specific configurations. Simulation results revealed that the batteries successfully initiated the drivetrain in the Starting Mode, while the fuel cell provided support during the Accelerating Mode. InSteady Mode, as the battery state of charge decreased, the PEM fuel cell seamlessly supported the battery andpowered the load simultaneously. Various matching schemes were analyzed to meet thedynamic performance requirements of the vehicle and achieve theoptimal synergy between the fuel cell and NiMH battery. The study aimed to identify the most effective configuration to ensure efficient energy management and dynamic performance in different operational modes of the hybrid vehicle.
Źródło:: Mining Machines; 2023, 41, 4; 261--273
2719-3306
Pojawia się w:: Mining Machines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Recovery Of Electrodic Powder From Spent Nickel-Metal Hydride Batteries (NiMH)
Odzyskiwanie proszku elektrodowego ze zużytych akumulatorów niklowo-wodorkowych (NiMH)
Autorzy:: Shin, S. M.
Shin, D. J.
Jung, G. J.
Kim, Y. H.
Wang, J. P.
Powiązania:: https://bibliotekanauki.pl/articles/356110.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nickel-metal hybride (NiMH)
electrodic powder
nickel
rare earth elements (REE)
thermal treatment
akumulator niklowo-wodorkowy
proszek elektrodowy
nikiel
pierwiastki ziem rzadkich
obróbka termiczna
Opis:: This study was focused on recycling process newly proposed to recover electrodic powder enriched in nickel (Ni) and rare earth elements (La and Ce) from spent nickel-metal hydride batteries (NiMH). In addition, this new process was designed to prevent explosion of batteries during thermal treatment under inert atmosphere. Spent nickel metal hydride batteries were heated over range of 300°C to 600°C for 2 hours and each component was completely separated inside reactor after experiment. Electrodic powder was successfully recovered from bulk components containing several pieces of metals through sieving operation. The electrodic powder obtained was examined by X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDX) and image of the powder was taken by scanning electron microscopy (SEM). It was finally found that nickel and rare earth elements were mainly recovered to about 45 wt.% and 12 wt.% in electrodic powder, respectively.
Źródło:: Archives of Metallurgy and Materials; 2015, 60, 2B; 1139-1143
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effect of powder granulation on hydrogen transport rate and hydrogen solubility in LaNi5-paraffin composite material
Wpływ granulacji proszku na szybkość transportu i rozpuszczalność wodoru w materiale kompozytowym: proszek LaNi5-parafina
Autorzy:: Kukuła, I.
Bala, H.
Powiązania:: https://bibliotekanauki.pl/articles/354276.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: granulacja
wodór
materiały kompozytowe
NiMH
LaNi5 powder
hydrogenation
hydrogen diffusion
Opis:: On the basis of potentiostatic discharge method, the diffusion rate of atomic hydrogen as well as its solubility in LaNi5 crystal lattice have been evaluated for three LaNi5 powder - paraffin composite electrodes, with different LaNi5 powder particle diameters: 0 - 20 η, 20 - 50 η and 50 - 100 η. The chronoamperommetric tests have been carried out in strong alkaline (6 M KOH), deaerated solution, at 25_C. Apparent hydrogen diffusion coefficients have been determined using Crank's spherical diffusion model. It has been shown, that increase of particle size is prone to increase of hydrogen apparent diffusion coefficient and to decrease of hydrogen concentration in the solid phase. To explain the granulation effect on hydrogenation ability parameters, the inhibition of hydrogen transport by surfacial corrosion products present on powder particles has been assumed.
Za pomocą potencjostatycznej metody rozładowania oceniono szybkość dyfuzji atomowego wodoru i jego rozpuszczalność w sieci krystalicznej LaNi5 dla trzech elektrod kompozytowych: proszek LaNi5 - parafina przy różnych średnich rozmiarach cząstek LaNi5: 0 - 20 η, 20 - 50 η i 50 - 100 η. Badania chronoamperometryczne przeprowadzono w silnie zasadowym (6 M KOH), odpowietrzonym roztworze, przy 25 stopni Celsjusza. Pozorne współczynniki dyfuzji wodoru wyznaczono wykorzystując model sferycznej dyfuzji Crank'a. Pokazano, że wzrost rozmiarów cząstek proszku prowadzi do wzrostu wartości pozornego współczynnika dyfuzji w fazie stałej. Dla wytłumaczenia wpływu granulacji na parametry opisujące zdolność wodorownia założono, ze transport atomowego wodoru ulega spowolnieniu wskutek obecności powierzchniowych produktów korozji na cząstkach proszku.
Źródło:: Archives of Metallurgy and Materials; 2012, 57, 3; 728-731
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: A Study on Recovery of Cerium by Leaching Solvents from NiMH Waste Battery
Autorzy:: Kim, Boram
Kim, Dae-Weon
Choi, Hee Lack
Powiązania:: https://bibliotekanauki.pl/articles/2203709.pdf
Data publikacji:: 2023
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: NiMH
cerium recovery
rare earth composite powder
Opis:: In this study, a rare earth composite precipitation (NaREE(SO4)2H2O, REE: Ce, La, Nd, Pr) powder was prepared from spent nickel hydride batteries, and cerium hydroxide was separated from its constituent rare earth elements. As Ce(OH)3 can be oxidized more easily than other rare earth elements (La, Nd, and Pr), Ce3+ was converted to Ce4+ by injecting air into the leachate at 80°C for 4 h. The oxidized powder was leached using sulfuric and hydrochloric acids. Because Ce(OH)4 has low solubility, it can be separated from other elements. Therefore, the pH of the leaching solution was adjusted for selective precipitation. To determine the crystalline phase, recovery, and grade of the recovered Ce(OH)4, the powders were analyzed using X-ray diffraction, scanning electron microscopy, and inductively coupled plasma optical emission spectroscopy. The grade and recovery rates of the Ce(OH)4 powder recovered from the rare earth composite precipitate using sulfuric acid as the solvent were 95% and 97%, respectively, whereas those of the powder recovered using hydrochloric acid were 96% and 95%, respectively.
Źródło:: Archives of Metallurgy and Materials; 2023, 68, 1; 103--106
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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