Conheça a 'bateria de água' que pode conter quase o dobro da capacidade energética das de lítio, marcando uma potencial mudança na indústria de veículos elétricos e no armazenamento de energia

Meet the ‘Water Battery’ That Can Hold Nearly Double the Energy Capacity of Lithium Batteries, Marking a Potential Shift in the Electric Vehicle Industry and Energy Storage

Written by Noel Budeguer

Published on 09/05/2024 at 15:47

Updated on 09/05/2024 at 18:51

Descubra a revolucionária bateria de água chinesa com o dobro da capacidade das de lítio. Mais segura e eficiente, ideal para veículos elétricos

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Discover The Revolutionary Chinese Water Battery With Double The Capacity Of Lithium Ones. Safer And More Efficient, Ideal For Electric Vehicles

Chinese researchers have developed a water-based battery that promises to be safer and more efficient in energy than traditional lithium options. These new aqueous batteries, using a mixed halogen solution, have demonstrated an energy density that could double that of lithium-ion batteries, marking a potential change in the electric vehicle industry and large-scale energy storage.

In a recent breakthrough in battery technology, a team of researchers from the Dalian Institute of Chemical Physics (DICP), part of the Chinese Academy of Sciences (CAS), developed an aqueous battery with energy capacities that almost double those of traditional lithium cells. This development not only promises to enhance safety but also improve energy efficiency.

Safety And Energy Efficiency Of The Aqueous Battery

Aqueous batteries use water as a solvent for electrolytes, which significantly improves their safety compared to non-aqueous lithium batteries, which are highly flammable due to the organic electrolytes they use. The latter, while offering high energy density, compromise safety.

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Improved Energy Density

While aqueous batteries generally exhibit a lower energy density due to the limited solubility of the electrolyte and low voltage, researchers from DICP have managed to develop a high-energy-density aqueous battery through a multi-electron transfer cathode based on bromine and iodine.

Technical Innovations

The group led by Prof. Li Xianfeng and Prof. Fu Qiang, also from DICP, used a mixed solution of iodide (I-) and bromide (Br-) ions as electrolyte. During the charging process, iodide ions are oxidized to iodate (IO3-) on the positive side, while the generated protons are transported to the negative side as supporting electrolyte. This process is reversed during discharge, allowing for a reversible and rapid electrochemical reaction.

The developed cathode achieved a specific capacity of over 840 Ah/L and an energy density of up to 1200 Wh/L, according to a study published in Nature Energy. These results not only surpass the energy density of some solid electrode materials but are also cost-competitive with traditional lithium batteries.

Potential Impact And Future Applications

The increase in capacity and energy density of these aqueous batteries could have a significant impact on the electric vehicle industry and grid-scale energy storage. Furthermore, the lifespan could extend to 1000 cycles, demonstrating significant stability.

The development of aqueous batteries with high energy density offers a new option for designing safer and more efficient batteries. This advancement is not only promising for application in power batteries but could also significantly expand application in various fields of renewable energy and sustainability.

Source: scmp

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Florisvaldo

#7453

11/05/2024 10:39

Uau!!! Que bom!!!

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Henrique

#7394

10/05/2024 19:11

1000 ciclos? Supondo uma carga a cada 2 dias dá aproximadamente 5,5 anos e no caso de uso pesado que necessita de uma carga diária vai dar 2 anos e nove meses. Eu estou imaginando que essa bateria seja utilizada em automóveis. Enfim o carro elétrico será obrigatoriamente descartado quando a bateria acabar. Ainda que essa bateria seja mais barata o que se levarmos o terrível “custo Brasil” não vai fazer diferença nenhuma para um automóvel vendido aqui.

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Erik

#7425

Em resposta a Henrique

10/05/2024 23:52

Seu cálculo é correto, menos na parte de “descartar o carro”. Não tem nem lógica, se for uma bateria fácil de produzir e reciclar, basta que o carro seja produzido com mecanismo especial para troca de módulos. O restante do carro sofrerá manutenções comuns, e a bateria antiga seria devolvida ao fabricante para filtragem e reaproveitamento dos materiais básicos. No mundo dos nossos pais, as chances de um carro de papel eram mais altas, mas a pressão pela sustentabilidade só vai aumentar com o passar dos anos e nenhuma obsolescência que gere desperdícios nesse caso vai dar lucros que valham a tramóia

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Meet the ‘Water Battery’ That Can Hold Nearly Double the Energy Capacity of Lithium Batteries, Marking a Potential Shift in the Electric Vehicle Industry and Energy Storage

Discover The Revolutionary Chinese Water Battery With Double The Capacity Of Lithium Ones. Safer And More Efficient, Ideal For Electric Vehicles

Safety And Energy Efficiency Of The Aqueous Battery

Major Oil, Gas, and Energy Event Will Take Place in Brazil: Macaé Energy Will Gather Petrobras, Equinor, Prio, Among Other Suppliers and Energy Executives for Business, Networking, and Employment Opportunities

Improved Energy Density

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Meet the ‘Water Battery’ That Can Hold Nearly Double the Energy Capacity of Lithium Batteries, Marking a Potential Shift in the Electric Vehicle Industry and Energy Storage

Discover The Revolutionary Chinese Water Battery With Double The Capacity Of Lithium Ones. Safer And More Efficient, Ideal For Electric Vehicles

Safety And Energy Efficiency Of The Aqueous Battery

Major Oil, Gas, and Energy Event Will Take Place in Brazil: Macaé Energy Will Gather Petrobras, Equinor, Prio, Among Other Suppliers and Energy Executives for Business, Networking, and Employment Opportunities

Improved Energy Density

Technical Innovations

Potential Impact And Future Applications

At just 14 years old, a boy creates a system without energy, using steel pipes buried in the ground, that irrigates seedlings with moisture from the air, to combat the water scarcity threatening reforestation in northern China.

Where there was only sand and wind at 40 degrees, China built a megacity of 500,000 inhabitants with farms, wineries, and universities in the middle of the desert using melted glacier water from hundreds of kilometers away.

At over 8,800 meters above sea level, the summit of Mount Everest is made up of rocks that originated at the bottom of an ocean about 500 million years ago and were pushed to the highest point on Earth by the collision of tectonic plates.

The German economist Wolf-Peter Schill has no doubts: “Electric cars are already far superior to cars with internal combustion engines.”

Lula’s government changes rule in important benefit and thousands of Brazilians will no longer receive it; see what has changed.

Roraima bets on the sun to escape high tariffs: Amid the energy crisis and price hikes, solar energy is growing in Roraima and transforming consumption in the North region.

Scientists want to turn internet cables into sensors to listen for tremors on the Moon, and the plan could permanently change how the Artemis missions will explore, map risks, and protect astronauts on the lunar surface.

While the world looks at oil, the war with Iran is already disrupting helium supply from Qatar, affecting car and iPhone chips, threatening AI expansion, and putting pressure on aluminum packaging at the highest value in four years.

Global warming will expose a treasure hidden under the ice of Antarctica and may spark an international dispute over gold and valuable minerals.

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