A-site deficient/excessive effects of LaMnO3 perovskite as bifunctional oxygen catalyst for zinc-air batteries

High-Performance-Based Perovskite-Supported Nanocomposite for the Development of Green Energy Device Applications: An Overview

“…The research findings of Lv and his coworkers showed that the perovskite-type LaMn 0.8 Cu 0.2 O 3 and LaMn 0.8 Co 0.2 O 3 had good bi-functional catalytic activities due to the presence of Mn 4+ /Mn 3+ and oxygen vacancies. The study exemplified that B-site doping is an effective solution to improve the ORR and OER catalytic activity of perovskite in Li-O 2 batteries [ 124 ].Many researchers have shown that the catalytic activity of the ABO 3 perovskite toward the oxygen reduction reaction and oxygen evolution reaction is enhanced while tuning the A site’s deficient and excessive stoichiometry [ 125 ]. In a study, Miao and his coworkers chose the simplest Mn-based perovskite (LaMnO 3 ) to explain the deficient effects and enhancing mechanisms on both ORR and OER.…”

“…Consequently, A-site-deficient, Mn-based perovskite could be used for aqueous and solid-state flexible zinc–air battery applications. Electric vehicles that utilize a lithium-ion battery pack for propulsion have gained a great deal of attention [ 125 ]. Interestingly, Xu et al studied the use of perovskite solar-cell packs with a LiFePO 4 cathode and Li 4 Ti 5 O 12 anode.…”

Compositional Effects of Gel Polymer Electrolyte and Battery Design for Zinc‐Air Batteries

“…The necessity for tri-electrode batteries has been mitigated somewhat by recent improvements in the energy efficiency of bifunctional catalysts. [9,[64][65][66][67][68][69][70][71] A variation on the tri-electrode concept can be implemented by combining the benefits of a bifunctional catalyst and the solid state nature of gel electrolytes to double the area of the air electrode, thereby reducing its effective current density. In fact, this is a basic unit cell of the monopolar stack battery which was discussed by Muller et al in 1995.…”

High Energy Storage Capabilities of CaCu3Ti4O12 for Paper-Based Zinc-Air Battery

“…The abundance, low cost, eco-friendliness, less toxicity, high stability in alkaline and aqueous medium, and no requirement of manufacturing environment are also the advantages of the zinc-air batteries, which makes them a promising option for clean energy storage 8,9,10 . The intrinsic lethargic process of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) on the air electrode results in a vast over potential, impoverished reversibility, constrained energy efficiency, and low output power density technical barriers the practical application of ZABs [11][12][13] . The ORR-OER reactions are the primary electro-chemical processes that regulate various electrochemistry-based applications like energy conversion and storage devices 14 .…”

“…They have the formula of ABO 3 where A site occupies rare/alkaline earth metal cations (12 fold coordination), and B site occupies transition metal cations (6 fold coordination) 17,18 . The perovskites are also widely useful in oxygen transport membrane, water splitting, and solid oxide fuel cells (SOFCs) due to their excellent electronic/ionic conductivity and defects 1,3,12 .…”