Three-stage method could revolutionise rechargeability
University of Sydney researchers have found a solution for one of the biggest stumbling blocks preventing zinc-air batteries from overtaking conventional lithium-ion batteries as the power source of choice in electronic devices.
Zinc-air batteries are batteries powered by zinc metal and oxygen from the air. Due to the global abundance of zinc metal, these batteries are much cheaper to produce than lithium-ion batteries, and they can also store more energy (theoretically five times more than that of lithium-ion batteries), are much safer, and are more environmentally friendly.
While zinc-air batteries are currently used as an energy source in hearing aids and some film cameras and railway signal devices, their widespread use has been hindered by the fact that, up until now, recharging them has proved difficult. This is due to the lack of electrocatalysts that successfully reduce and generate oxygen during the discharging and charging of a battery.
Published in Advanced Materials today, a paper authored by chemical engineering researchers from the University of Sydney and Nanyang Technological University outlines a new three-stage method to overcome this problem.
According to lead author Professor Yuan Chen, from the University of Sydney’s Faculty of Engineering and Information Technologies, the new method can be used to create bifunctional oxygen electrocatalysts for building rechargeable zinc-air batteries from scratch.
“Up until now, rechargeable zinc-air batteries have been made with expensive precious metal catalysts, such as platinum and iridium oxide. In contrast, our method produces a family of new high-performance and low-cost catalysts,” he said.
These new catalysts are produced through the simultaneous control of the: 1) composition, 2) size and 3) crystallinity of metal oxides of earth-abundant elements such as iron, cobalt and nickel. They can then be applied to build rechargeable zinc-air batteries.
Paper co-author Dr Li Wei, also from the University’s Faculty of Engineering and Information Technologies, said trials of zinc-air batteries developed with the new catalysts had demonstrated excellent rechargeability – including less than a 10 percent battery efficacy drop over 60 discharging/charging cycles of 120 hours.
“We are solving fundamental technological challenges to realise more sustainable metal-air batteries for our society,” Professor Chen added.
The Latest on: Zinc-air battery
- Global Electric Vehicle Battery Market Expected to Grow at a CAGR of More Than 19% During 2018-2025on November 28, 2019 at 11:36 am
Others include rechargeable batteries like Nickel Cadmium Battery (NiCd), Zinc-air Battery and Molten Salt Batteries that are less commonly used in the electric vehicles. Others battery market segment ...
- Nikola Motor’s Bombshell Battery Claim Irks Experts, Who Think Its Secret May Lie In Sulfuron November 24, 2019 at 5:54 am
Using silicon as an anode material would also provide increased energy density, he says. Other options include an improved alkaline battery chemistry with an air cathode such as the zinc-air battery.
- Utilizing solar energy to improve the oxygen evolution reaction kinetics in zinc–air batteryon October 18, 2019 at 2:12 am
Solar cell and rechargeable metal–air battery are two totally different systems converting energy of different forms into electricity. Intrinsically, solar cell can only convert light into instant ...
- The Influence of Dimethyl Sulfoxide as Electrolyte Additive on Anodic Dissolution of Alkaline Zinc-Air Flow Batteryon October 18, 2019 at 2:03 am
The present work describes the effects of dimethyl sulfoxide (DMSO) in KOH aqueous electrolyte on the performance of a zinc-air flow battery. Aqueous electrolytes containing 7 M KOH and (0 to 20)% v/v ...
- Zinc-Air Batteries Market :Berkshire Hathaway Inc., Spectrum Brands Holdings, Inc., Energizer Holdings, and Panasonic Corporationon October 16, 2019 at 4:39 am
Growing number of applications of zinc–air batteries such as traffic signaling and communication to augment the market Demand for battery systems for use in traffic signaling systems has increased ...
- MGX Renewables Announces Production of Next Generation Cathodes for Zinc-Air Fuel Cell Batteryon September 3, 2019 at 1:24 pm
VANCOUVER, BC / ACCESSWIRE / September 3, 2019 / MGX Renewables Inc. (“MGXR” or the “Company”) (CSE:MGXR)(0E9.F) is pleased to announce production of next generation carbon based cathode for its ...
- MGX Renewables, Inc.: MGX Renewables Announces Production of Next Generation Cathodes for Zinc-Air Fuel Cell Batteryon September 3, 2019 at 2:08 am
VANCOUVER, BC / ACCESSWIRE / September 3, 2019 / MGX Renewables Inc. ("MGXR" or the "Company") (CSE:MGXR)(FSE:0E9) is pleased to announce production of next generation carbon based cathode for its ...
- Zinc-Air Battery Market to Set Phenomenal Growth by 2023 | Exide Technologies, Panasonic, Exide Industrieson May 13, 2019 at 10:06 pm
May 14, 2019 (HTF Market Intelligence via COMTEX) -- The Global Zinc-Air Battery Market has witnessed continuous growth in the past few years and is projected to grow even further during the forecast ...
- Zinc-Air Batteries Market Driven By Increasing Demand for Cost Effective Rechargeable Batterieson May 6, 2019 at 8:49 am
May 06, 2019 (AB Digital via COMTEX) -- The rising acceptance for zinc-air batteries is driven by increased demand for efficient, environment-friendly, and ...
- Neutral Zinc-air battery with cathode NiCo/C-N shows outstanding performanceon April 12, 2019 at 9:03 am
A corresponding zinc-air battery was assembled in a neutral medium using the prepared sample as the catalyst of the air electrode, showing superior discharge performance and stability. Caption: ...
via Google News and Bing News