7.2V 3000mAh Roj teeb Tau tshaj Euro Pro Shark XB1918, V1917, V1950, VX3

Q: NiMH roj teeb yog dab tsi?

A: Cov khoom siv anode ntawm nickel-hlau hydride roj teeb yog Ni (OH) 2 (hu ua NiO electrode), cov khoom siv ntawm cov electrode tsis zoo yog hlau hydride, tseem hu ua hydrogen cia alloy (cov electrode hu ua hydrogen cia electrode), thiab cov electrolyte yog 6mol / L potassium hydroxide tov. Cov txheej txheem ntawm cov khoom siv los ua cov khoom siv electrode feem ntau suav nrog hom sintering, slurry type, nickel foam type, fiber ntau nickel type thiab embedded type, thiab lwm yam, thiab cov electrodes npaj los ntawm cov txheej txheem sib txawv muaj qhov sib txawv ntawm lub peev xwm thiab kev ua haujlwm siab tam sim no, thiab cov roj teeb feem ntau ua raws li cov txheej txheem sib txawv hauv cov xwm txheej sib txawv. Feem ntau ntawm cov roj teeb hauv pej xeem xws li kev sib txuas lus siv slurry hom anode thiab ua npuas ncauj nickel hom cathode los tsim cov roj teeb. Cov tshuaj tiv thaiv ntawm tus nqi thiab tso tawm yog raws li nram no:

Cathode: Ni(OH)2+OH-=NiOOH+H2O+e-

Tsis zoo electrode: M + H2O + e- = MHab + OH-

Tag nrho cov tshuaj tiv thaiv: Ni(OH)2+M=NiOOH+MH

Lus Cim: M: Hydrogen alloy; Hab: adsorption ntawm hydrogen; Cov txheej txheem sab laug-rau-txoj cai ntawm cov qauv reactive yog cov txheej txheem them nyiaj; Txoj cai-rau-sab laug txheej txheem ntawm cov tshuaj tiv thaiv yog cov txheej txheem tawm.

Thaum them nyiaj, Ni (OH) 2 thiab OH- ntawm lub cathode react rau NiOOH thiab H2O, thiab e- raug tso tawm tib lub sijhawm los tsim MH thiab OH-, thiab tag nrho cov tshuaj tiv thaiv yog Ni (OH) 2 thiab M los ua NiOOH, thiab cov hydrogen cia alloy khaws hydrogen. Nyob rau hauv sib piv rau qhov tso tawm, MH ab tso H +, H + thiab OH- los tsim H2O thiab e-, thiab NiOOH, H2O thiab e- regenerate Ni (OH) 2 thiab OH-. Tus qauv electromotive quab yuam ntawm lub roj teeb yog 1.319V.