Increasing in the capacity and lifetime of lithium-air batteries using nano-composite of MnFe2O4/C as catalyst and ionic liquid of [C2mim][BF4] as electrolyte

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HOSSEINI MEHDI; Jalili Jahani Nasser

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Journal: Journal of Applied Research in Chemistry Year:2019 | Volume:13 | Issue:3 Page(s): 89-103

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Title

Increasing in the capacity and lifetime of lithium-air batteries using nano-composite of MnFe2O4/C as catalyst and ionic liquid of [C2mim][BF4] as electrolyte

Author(s)

HOSSEINI MEHDI | Jalili Jahani Nasser | Issue Writer Certificate

Keywords

Lithium-air batteryQ1

catalyst of MnFe2O4/CQ1

ionic liquid of [C2mim][BF4]Q1

increasing in performanceQ1

Abstract

Today, air-lithium rechargeable batteries have wide applications in devices with energy saving capabilities. To increase performance and lifetime on these batteries, use of a catalyst and electrolyte are necessary. So, use of a catalyst from metal-transitional metals oxide based on carbon MnFe2O4/C with high surface in construction of battery cathode. To increase safety, lifetime and battery charging-discharging capacity, an ionic liquid of 1-ethyl-3-methylimidazolium tetrafluoroborate [C2mim][BF4] as electrolyte may be used. Properties of catalyst by using common techniques such as FTIR, TGA/DTG, XRD, and SEM were examined. Results showed that catalyst had porous, homogeneous structure, and particles size of 30 nm. Use of a catalyst at nanodimensions and ionic electrolyte with high conductivity caused to discharge capacity of battery to 2360 mAh g-1 and for battery without any catalyst to 815 mAh g-1 at current density of 0. 1 mA cm-1. At current density of 0. 2 mA cm-1 discharge capacities for battery with catalyst 710 mAh g-1 and without catalyst 535 mAh g-1 were obtained. Increase in discharge-charge cycles in presence of catalyst (>1000 times) compared with battery without catalyst (up to 3 times) represent performance of used catalyst. Due to ionic electrolyte stability, lifetime of battery about 2 times more than rather battery with common electrolyte. Decrease in difference between discharge and charge processes potential is one of the advantages of battery. Results showed that the use a catalyst of MnFe2O4/C caused to significantly increasing in battery discharge capacity.

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APA: Copy

HOSSEINI, MEHDI, & Jalili Jahani, Nasser. (2019). Increasing in the capacity and lifetime of lithium-air batteries using nano-composite of MnFe2O4/C as catalyst and ionic liquid of [C2mim][BF4] as electrolyte. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 13(3 ), 89-103. SID. https://sid.ir/paper/180309/en

Vancouver: Copy

HOSSEINI MEHDI, Jalili Jahani Nasser. Increasing in the capacity and lifetime of lithium-air batteries using nano-composite of MnFe2O4/C as catalyst and ionic liquid of [C2mim][BF4] as electrolyte. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2019;13(3 ):89-103. Available from: https://sid.ir/paper/180309/en

IEEE: Copy

MEHDI HOSSEINI, and Nasser Jalili Jahani, “Increasing in the capacity and lifetime of lithium-air batteries using nano-composite of MnFe2O4/C as catalyst and ionic liquid of [C2mim][BF4] as electrolyte,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 13, no. 3 , pp. 89–103, 2019, [Online]. Available: https://sid.ir/paper/180309/en

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