Nova tecnologia baterias

[tcouto]

É mesmo novidade? E é credivel?

http://www.sciencedaily.com/releases/20 ... 090449.htm

[serges]

Há muito "ruido" nestas invenções mas...

Vamos aguardar desenvolvimento.

Copia e cola aqui a noticia depois daqui a uns anos ou meses vamos falar outra vez...

[tcouto]

Scientists from Nanyang Technological University (NTU Singapore) have developed a new battery that can be recharged up to 70 per cent in only 2 minutes. The battery will also have a longer lifespan of over 20 years.

Expected to be the next big thing in battery technology, this breakthrough has a wide-ranging impact on many industries, especially for electric vehicles which are currently inhibited by long recharge times of over 4 hours and the limited lifespan of batteries.

This next generation of lithium-ion batteries will enable electric vehicles to charge 20 times faster than the current technology. With it, electric vehicles will also be able to do away with frequent battery replacements. The new battery will be able to endure more than 10,000 charging cycles -- 20 times more than the current 500 cycles of today's batteries.

NTU Singapore's scientists replaced the traditional graphite used for the anode (negative pole) in lithium-ion batteries with a new gel material made from titanium dioxide, an abundant, cheap and safe material found in soil. It is commonly used as a food additive or in sunscreen lotions to absorb harmful ultraviolet rays.

Naturally found in a spherical shape, NTU Singapore developed a simple method to turn titanium dioxide particles into tiny nanotubes that are a thousand times thinner than the diameter of a human hair.

This nanostructure is what helps to speeds up the chemical reactions taking place in the new battery, allowing for superfast charging.

Invented by Associate Professor Chen Xiaodong from the School of Materials Science and Engineering at NTU Singapore, the science behind the formation of the new titanium dioxide gel was published in the latest issue of Advanced Materials, a leading international scientific journal in materials science.

NTU professor Rachid Yazami, who was the co-inventor of the lithium-graphite anode 34 years ago that is used in most lithium-ion batteries today, said Prof Chen's invention is the next big leap in battery technology.

"While the cost of lithium-ion batteries has been significantly reduced and its performance improved since Sony commercialised it in 1991, the market is fast expanding towards new applications in electric mobility and energy storage," said Prof Yazami.

"There is still room for improvement and one such key area is the power density -- how much power can be stored in a certain amount of space -- which directly relates to the fast charge ability. Ideally, the charge time for batteries in electric vehicles should be less than 15 minutes, which Prof Chen's nanostructured anode has proven to do."

Prof Yazami, who is Prof Chen's colleague at NTU Singapore, is not part of this research project and is currently developing new types of batteries for electric vehicle applications at the Energy Research Institute at NTU (ERI@N).

Commercialisation of technology

Moving forward, Prof Chen's research team will be applying for a Proof-of-Concept grant to build a large-scale battery prototype. The patented technology has already attracted interest from the industry.

The technology is currently being licensed to a company and Prof Chen expects that the new generation of fast-charging batteries will hit the market in two years' time. It holds a lot of potential in overcoming the longstanding power issues related to electro-mobility.

"With our nanotechnology, electric cars would be able to increase their range dramatically with just five minutes of charging, which is on par with the time needed to pump petrol for current cars," added Prof Chen.

"Equally important, we can now drastically cut down the waste generated by disposed batteries, since our batteries last ten times longer than the current generation of lithium-ion batteries."

The long-life of the new battery also means drivers save on the cost of a battery replacement, which could cost over USD$5,000 each.

Easy to manufacture

According to Frost & Sullivan, a leading growth-consulting firm, the global market of rechargeable lithium-ion batteries is projected to be worth US$23.4 billion in 2016.

Lithium-ion batteries usually use additives to bind the electrodes to the anode, which affects the speed in which electrons and ions can transfer in and out of the batteries.

However, Prof Chen's new cross-linked titanium dioxide nanotube-based electrodes eliminate the need for these additives and can pack more energy into the same amount of space.

"Manufacturing this new nanotube gel is very easy," Prof Chen added. "Titanium dioxide and sodium hydroxide are mixed together and stirred under a certain temperature. Battery manufacturers will find it easy to integrate our new gel into their current production processes."

This battery research project took the team of four NTU Singapore scientists three years to complete and is funded by Singapore's National Research Foundation.

Last year, Prof Yazami was awarded the Draper Prize by the National Academy of Engineering for his ground-breaking work in developing the lithium-ion battery with three other scientists.

[serges]

Podias ter colocado o Link era mais fácil e assim a malta que não percebe inglês podia usar o tradutor!!

Coloca o link para ficar certinho!

Obrigado

[Emanuel Couto]

Scientists from Nanyang Technological University (NTU Singapore) have developed a new battery that can be recharged up to 70 per cent in only 2 minutes. The battery will also have a longer lifespan of over 20 years.

Expected to be the next big thing in battery technology, this breakthrough has a wide-ranging impact on many industries, especially for electric vehicles which are currently inhibited by long recharge times of over 4 hours and the limited lifespan of batteries.

This next generation of lithium-ion batteries will enable electric vehicles to charge 20 times faster than the current technology. With it, electric vehicles will also be able to do away with frequent battery replacements. The new battery will be able to endure more than 10,000 charging cycles -- 20 times more than the current 500 cycles of today's batteries.

NTU Singapore's scientists replaced the traditional graphite used for the anode (negative pole) in lithium-ion batteries with a new gel material made from titanium dioxide, an abundant, cheap and safe material found in soil. It is commonly used as a food additive or in sunscreen lotions to absorb harmful ultraviolet rays.

Naturally found in a spherical shape, NTU Singapore developed a simple method to turn titanium dioxide particles into tiny nanotubes that are a thousand times thinner than the diameter of a human hair.

This nanostructure is what helps to speeds up the chemical reactions taking place in the new battery, allowing for superfast charging.

Invented by Associate Professor Chen Xiaodong from the School of Materials Science and Engineering at NTU Singapore, the science behind the formation of the new titanium dioxide gel was published in the latest issue of Advanced Materials, a leading international scientific journal in materials science.

NTU professor Rachid Yazami, who was the co-inventor of the lithium-graphite anode 34 years ago that is used in most lithium-ion batteries today, said Prof Chen's invention is the next big leap in battery technology.

"While the cost of lithium-ion batteries has been significantly reduced and its performance improved since Sony commercialised it in 1991, the market is fast expanding towards new applications in electric mobility and energy storage," said Prof Yazami.

"There is still room for improvement and one such key area is the power density -- how much power can be stored in a certain amount of space -- which directly relates to the fast charge ability. Ideally, the charge time for batteries in electric vehicles should be less than 15 minutes, which Prof Chen's nanostructured anode has proven to do."

Prof Yazami, who is Prof Chen's colleague at NTU Singapore, is not part of this research project and is currently developing new types of batteries for electric vehicle applications at the Energy Research Institute at NTU (ERI@N).

Commercialisation of technology

Moving forward, Prof Chen's research team will be applying for a Proof-of-Concept grant to build a large-scale battery prototype. The patented technology has already attracted interest from the industry.

The technology is currently being licensed to a company and Prof Chen expects that the new generation of fast-charging batteries will hit the market in two years' time. It holds a lot of potential in overcoming the longstanding power issues related to electro-mobility.

"With our nanotechnology, electric cars would be able to increase their range dramatically with just five minutes of charging, which is on par with the time needed to pump petrol for current cars," added Prof Chen.

"Equally important, we can now drastically cut down the waste generated by disposed batteries, since our batteries last ten times longer than the current generation of lithium-ion batteries."

The long-life of the new battery also means drivers save on the cost of a battery replacement, which could cost over USD$5,000 each.

Easy to manufacture

According to Frost & Sullivan, a leading growth-consulting firm, the global market of rechargeable lithium-ion batteries is projected to be worth US$23.4 billion in 2016.

Lithium-ion batteries usually use additives to bind the electrodes to the anode, which affects the speed in which electrons and ions can transfer in and out of the batteries.

However, Prof Chen's new cross-linked titanium dioxide nanotube-based electrodes eliminate the need for these additives and can pack more energy into the same amount of space.

"Manufacturing this new nanotube gel is very easy," Prof Chen added. "Titanium dioxide and sodium hydroxide are mixed together and stirred under a certain temperature. Battery manufacturers will find it easy to integrate our new gel into their current production processes."

This battery research project took the team of four NTU Singapore scientists three years to complete and is funded by Singapore's National Research Foundation.

Last year, Prof Yazami was awarded the Draper Prize by the National Academy of Engineering for his ground-breaking work in developing the lithium-ion battery with three other scientists.

Tradução.

Cientistas da Nanyang Technological University (NTU Singapura) desenvolveram uma nova bateria que pode ser recarregada até 70 por cento em apenas 2 minutos. A bateria também terá uma longa vida útil de mais de 20 anos.

Previsto para ser a próxima grande coisa em tecnologia de bateria, esta descoberta tem um impacto amplo sobre muitos setores, especialmente para veículos elétricos, que são actualmente inibido por longos tempos de recarga de mais de 4 horas ea duração limitada das baterias.

Esta próxima geração de baterias de iões de lítio permitirá que os veículos elétricos para carregar 20 vezes mais rápido do que a tecnologia atual. Com ele, os veículos elétricos também será capaz de acabar com a substituição das pilhas freqüentes. A nova bateria será capaz de suportar mais de 10.000 ciclos de carga - 20 vezes mais do que os atuais 500 ciclos de baterias de hoje.

Os cientistas da NTU Cingapura substituiu o grafite tradicional usado para o ânodo (pólo negativo) em baterias de lítio-íon com um novo material de gel feito de dióxido de titânio, um material abundante, barata e segura encontrado no solo. É comumente utilizada como aditivo alimentar ou em cremes protectores solares para absorver os raios ultravioletas prejudiciais.

Naturalmente encontrado numa forma esférica, NTU Singapura desenvolveram um método simples para ligar as partículas de dióxido de titânio em pequenos nanotubos que são mil vezes mais finos do que o diâmetro de um fio de cabelo humano.
Esta nanoestrutura é o que ajuda a velocidades de reações químicas que ocorrem na pilha nova, permitindo o carregamento super-rápido.
Inventado pelo professor Chen Xiaodong da Escola de Ciência dos Materiais e Engenharia da NTU Cingapura, a ciência por trás da formação do novo gel de dióxido de titânio foi publicado na última edição da revista Advanced Materials, uma revista científica internacional líder em ciência dos materiais.

Professor NTU Rachid Yazami, que foi o co-inventor do ânodo de lítio-grafite há 34 anos que é usado na maioria das baterias de iões de lítio de hoje, disse invenção do Prof Chen é o próximo grande salto na tecnologia das baterias.
"Enquanto o custo de baterias de lítio-íon tem sido significativamente reduzido e seu desempenho melhorou desde que a Sony comercializou, em 1991, o mercado está se expandindo para novas aplicações em mobilidade e armazenamento de energia elétrica", disse o Prof Yazami.

"Ainda há espaço para melhorias e uma dessas áreas-chave é a densidade de potência - o quanto de energia pode ser armazenada em uma certa quantidade de espaço -. Que se relaciona diretamente com a capacidade de carga rápida Idealmente, o tempo de carga para as baterias em elétrica veículos deve ser inferior a 15 minutos, que nanoestruturado ânodo do Prof Chen provou que fazer. "
Prof Yazami, que é colega do Prof Chen em NTU Cingapura, não faz parte deste projeto de pesquisa e está actualmente a desenvolver novos tipos de baterias para aplicações em veículos elétricos no Instituto de Pesquisas Energéticas em NTU (ERI @ N).
Comercialização de tecnologia
Seguindo em frente, a equipe de pesquisa do Prof Chen será aplicar para uma bolsa Proof-of-Concept construir um protótipo de bateria em grande escala. A tecnologia patenteada já atraiu interesse da indústria.
A tecnologia está sendo licenciada para uma empresa e Prof Chen espera que a nova geração de baterias de carregamento rápido chegará ao mercado dentro de dois anos. Ele detém um grande potencial para superar os problemas de energia de longa data relacionados com a eletro-mobilidade.

"Com a nossa nanotecnologia, os carros elétricos seria capaz de aumentar a sua gama drasticamente com apenas cinco minutos de carga, o que é a par com o tempo necessário para a bomba de gasolina para os carros atuais", acrescentou o Prof Chen.
"Igualmente importante, agora podemos reduzir drasticamente o lixo gerado por baterias descartados, uma vez que as baterias últimos dez vezes mais do que a atual geração de baterias de lítio-íon."

A longa vida da bateria nova também significa motoristas a economizar no custo de uma substituição da bateria, o que pode custar mais de US $ 5.000 cada.
Fácil de fabricar
De acordo com a Frost & Sullivan, uma empresa líder de consultoria de crescimento, o mercado global de baterias de iões de lítio recarregáveis ​​deverá valer US $ 23,4 bilhões em 2016.
As baterias de lítio-íon costumo usar aditivos para ligar os eléctrodos ao ânodo, o que afeta a velocidade com que os elétrons e íons pode transferir dentro e fora das pilhas.

No entanto, os novos eléctrodos à base de dióxido de titânio de nanotubos reticulado do Prof Chen eliminar a necessidade destes aditivos e podem incluir mais energia para a mesma quantidade de espaço.
"A fabricação deste novo gel nanotubo é muito fácil", acrescentou o Prof Chen. "O dióxido de titânio e hidróxido de sódio são misturados e agitados sob uma determinada temperatura. Fabricantes da bateria vai achar que é fácil de integrar o nosso novo gel em seus processos de produção atuais."

Este projeto de pesquisa da bateria levou a equipe de quatro cientistas NTU Cingapura três anos para ser concluído e é financiado pela Fundação Nacional de Pesquisa de Cingapura.
No ano passado, Prof Yazami foi agraciado com o Prêmio Draper pela Academia Nacional de Engenharia por seu trabalho pioneiro no desenvolvimento da bateria de lítio-ion com outros três cientistas.

http://www.sciencedaily.com/releases/20 ... 090449.htm

[tcouto]

Obrigado Emanuel...