Scientists Discover That Water-Based Batteries Can Store Up to 1,000% More Energy and Would Not Cause Fires

Written by Roberta Souza

Published on 03/04/2023 at 11:11

Updated on 03/04/2023 at 11:12

Foto: Reprodução adaptada google imagens / Revista Galileu

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Water-Based Batteries May Be The Solution To The Scarcity Of Some Metals

Due to the low availability of the metals used in battery production and the high complexity of extracting them, scientists at Texas A&M University have been working on an incredible project, featuring metal-free, water-based battery electrodes.

Simulations conducted by the researchers show that the difference in energy storage capacity, compared to conventional batteries, is up to 1,000%. Furthermore, with aqueous batteries, the fire hazard associated with batteries would be eliminated.

“In the future, if material scarcity becomes a reality, the cost of lithium-ion batteries will rise significantly. If we have this battery as an alternative, we can turn to this chemistry, where the supply is much more stable because we can manufacture them in the United States and the materials to produce them are here,” states researcher Dr. Jodie Lutkenhaus.

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How Does The Water-Based Battery Work?

According to the article authored by scientists at Texas A&M University, published in the journal Nature Materials, water-based or aqueous batteries consist of a cathode (the electrode with a negative charge); an anode (the electrode with a positive charge); and an electrolyte, similar to traditional batteries. However, in the water-based battery, the cathodes and anodes are polymers that can store energy, and the electrolyte is water mixed with organic salts.

The electrolyte transfers ions – charge-carrying particles – back and forth between the cathode and anode, and the electrolyte is also key to energy storage through its interactions with the electrode. The electrodes, with their “non-conjugated redox-active radical polymers,” are excellent candidates for water-based batteries due to the high discharge voltage of the polymers and the fast redox kinetics.

The Idea Of Water-Based Batteries Seems Great, But It’s Not So Easy To Bring To Life

“[L]ittle is known regarding the energy storage mechanism of these polymers in an aqueous environment. The reaction itself is complex and difficult to untangle due to the simultaneous transfer of electrons, ions, and water molecules,” affirm scientists at Texas A&M University.

The researchers have also conducted simulations and computational analyses, and will conduct more experiments for a better understanding of water-based batteries. Thus, it is expected that the project will still take a long time to be completed.

Scientists Discover That Water-Based Batteries Can Store Up to 1,000% More Energy and Would Not Cause Fires

Water-Based Batteries May Be The Solution To The Scarcity Of Some Metals

How Does The Water-Based Battery Work?

The Idea Of Water-Based Batteries Seems Great, But It’s Not So Easy To Bring To Life

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Scientists Discover That Water-Based Batteries Can Store Up to 1,000% More Energy and Would Not Cause Fires

Water-Based Batteries May Be The Solution To The Scarcity Of Some Metals

How Does The Water-Based Battery Work?

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Mother and daughter build a 70 m² house with more than 8,000 discarded glass bottles and impress with their creativity; known as the Casa de Sal, the property is located on Itamaracá Island, in Pernambuco.

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He transformed an abandoned plastic water tank into an underground house in the “hobbit hole” style, using only repurposed pallet wood, without heavy machinery or expensive labor.

Libya built over 4,000 kilometers of underground pipelines to bring water from the Sahara to coastal cities in a project that the government itself called the Eighth Wonder of the World.

China transforms desert-devastated area into the world’s largest artificial forest, planting trees for 60 years, blocking sand that reached Beijing, and creating a “green lung” of 92,000 hectares in a region once considered lost.

Desert sand, previously discarded for being too smooth for concrete, becomes an ecological brick in the United Arab Emirates, dispensing with Portland cement, curing at room temperature, and attempting to transform dunes useless for construction into raw material for a new arid engineering.

Toyota launches “family hybrid van” with 7 or 8 seats, 1.8 hybrid engine, fuel consumption of up to 23.8 km/l, and a price equivalent to about R$ 104,000 without taxes, below the Tiggo 8 Pro Plug-in Hybrid sold in Brazil: meet the Noah Hybrid 2026 in Japan.

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