Highly durable and active non-precious air cathode catalyst for zinc air battery

Zhu, Chen; Choi, Ja-Yeon; Wang, Haijiang; Li, Hui; Chen, Zhongwei

doi:10.1016/j.jpowsour.2010.12.047

Cited by 79 publications

(54 citation statements)

References 20 publications

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“…3b). Both the current density at 1 V and peak power density were significantly improved over previous reports on Zn-air primary batteries (Supplementary Table S1, 430% gain in current density and B15 % gain in power density over previous batteries) [15][16][17][18] , and slightly outperformed the battery made with Pt/C ORR catalyst at the same mass loading (Fig. 3b) as the result of the higher ORR activity of CoO/N-CNT.…”

Section: Resultsmentioning

confidence: 45%

Advanced zinc-air batteries based on high-performance hybrid electrocatalysts

et al. 2013

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Primary and rechargeable Zn-air batteries could be ideal energy storage devices with high energy and power density, high safety and economic viability. Active and durable electrocatalysts on the cathode side are required to catalyse oxygen reduction reaction during discharge and oxygen evolution reaction during charge for rechargeable batteries. Here we developed advanced primary and rechargeable Zn-air batteries with novel CoO/carbon nanotube hybrid oxygen reduction catalyst and Ni-Fe-layered double hydroxide oxygen evolution catalyst for the cathode. These catalysts exhibited higher catalytic activity and durability in concentrated alkaline electrolytes than precious metal Pt and Ir catalysts. The resulting primary Zn-air battery showed high discharge peak power density B265 mW cm À 2 , current density B200 mA cm À 2 at 1 V and energy density 4700 Wh kg À 1 . Rechargeable Zn-air batteries in a tri-electrode configuration exhibited an unprecedented small charge-discharge voltage polarization of B0.70 V at 20 mA cm À 2 , high reversibility and stability over long charge and discharge cycles.

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Section: Resultsmentioning

confidence: 45%

Advanced zinc-air batteries based on high-performance hybrid electrocatalysts

et al. 2013

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“…The most efficient bifunctional catalysts for rechargeable metal-air batteries are precious metals [3]. However, their high cost, scarcity, and poor durability as well as the limited performance of these catalysts for ORR and OER limit their application for commercial use [4,5].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of electrospun LaCoO3 fibers for oxygen reduction and evolution in rechargeable Zn–air batteries

et al. 2015

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LaCoO 3 fibers were synthesized through the calcination of an electrospun polymer-metal precursor fiber. The electrochemical performance of these fibers for oxygen reduction and evolution reactions was characterized in a KOH solution. Additionally, the electrochemical properties were compared with those of a conventional PtRu/C catalyst and a LaCoO 3 powder, which was synthesized using the Pechini method. The LaCoO 3 fibers had a greater surface area compared with the powder, whereas the crystal structures of the fibers and powder were notably similar. The LaCoO 3 fibers demonstrated better electrochemical properties compared with the LaCoO 3 powder, which was attributed to the increased surface area and number of active sites in the fibers.

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“…One of the important challenges encountered by zinc-air battery is the sensitivity towards the feed gas stream. When we feed the air with appreciable amount of CO 2 into the zinc-air battery, it reacts with electrolyte and forming the carbonate [1,11,12]. This carbonate will clog the pores of the air electrode and subsequently its affects and the performance and durability.…”

Section: Introductionmentioning

confidence: 99%

“…Also sulfur and nitrogen-doped carbon and graphene exhibit reasonable ORR activity in alkaline medium [18,19]. The effect of temperature on the formation of different phases of cobalt sulfides in an open inert atmosphere has been reported [12]. Preparation of nanomaterials by solid-state thermolysis has been reported to be a good choice for solution free synthesis of metal-free and non-precious electro-catalysts [20][21][22].…”

Section: Introductionmentioning

confidence: 99%