Lead and Zinc   Renewable Energy   Auto  

Scientists develop anode-free zinc battery for storing renewable energy

Researchers at Stanford University and King Abdullah University of Science and Technology have developed a prototype of an anode-free, zinc-based battery that uses low-cost, naturally abundant materials.

In a study published in the journal Nano Letters, scientists Yunpei Zhu, Yi Cui, and Husam Alshareef say they drew inspiration from previous explorations of “anode-free” lithium and sodium-metal batteries and decided to make a battery in which a zinc-rich cathode is the sole source for zinc plating onto a copper current collector.

Their main goal was to address a big problem linked to previously explored aqueous zinc-based batteries. The issue was that, even though they provided safety and high energy density when compared to other batteries, they required thick zinc anodes, which contain large amounts the metal and, thus, were more costly. 

In their prototype, however, the team of researchers used a manganese dioxide cathode that they pre-intercalated with zinc ions, an aqueous zinc trifluoromethanesulfonate electrolyte solution, and a copper foil current collector. During charging, zinc metal gets plated onto the copper foil, and during discharging the metal is stripped off, releasing electrons that power the battery. 

To prevent dendrites from forming, the experts coated the copper current collector with a layer of carbon nanodiscs. This layer promoted uniform zinc plating, thereby preventing dendrites and it also increased the efficiency of zinc plating and stripping. 

In their paper, Zhu Cui and Alshareef report that the battery showed high efficiency, energy density, and stability, retaining 62.8% of its storage capacity after 80 charging and discharging cycles. Thus, they believe that their anode-free battery design provides new directions for using aqueous zinc-based batteries in energy storage systems.


Leave a Comment:


KoBold Metals grows global exploration footprint

KoBold Metals, a start-up with a team of mostly phds backed by a coalition of billionaires is on a global search for key battery metals cobalt, lithium and nickel, as well as copper, which is key to the green energy transition, using advanced mapping technology.

Renewable power generation capacity exceeds 850 MW

The capacity of Iran’s renewable power plants reached 859.17 megawatts (MW) in the tenth Iranian calendar month of Dey (December 21, 2020-January 19, 2021), IRNA reported on Thursday.

Coal wins curious reprieve in Biden’s assault on climate change

President Joe Biden enlisted the entire US government in the fight against climate change on Wednesday, even telling the Central Intelligence Agency to consider global warming a national security threat.

Iran Eying to Provide Afghanistan with Electricity

The Iranian Energy Ministry has adopted a plan to meet Afghanistan’s need to electricity, Tehran's Ambassador to Kabul Bahador Aminian said on Wednesday.

NRI to bring renewable energy to Iranian schools

Director of Renewable Energy Department of Niroo Research Institute (NRI) said the institute has defined a new program for the promotion and expansion of the use of renewable energy sources in schools, IRNA reported.

European Commission working on sustainable battery rules

A report by S&P Global Platts states that the European Commission plans to propose EU sustainable battery rules by October.
Upcoming Events
 Mines & Metals

Mine & Business Today

 Scrap & Recycling


Our partners