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By Dr Parva Chhantyal, PhD.Oct 29 2020
Image Credit: Sergii Chernov/Shutterstock.com
France-based Nawa Technologies (NAWA) has introduced a ground-breaking ultra-fast carbon battery with unique electrode materials, combining the best nano and clean technologies to store more electricity than current batteries and improve performance.
The transportation sector contributes approximately 23% of greenhouse gases worldwide. In 2015, to address this problem, "Paris declaration on ElectroMobility and Climate Change and Call to Action" announced plans to reduce global warming by more than 2 degrees Celsius. This goal is only achievable if 20% of all vehicles by 2030 are electric vehicles (EV).
EV Battery Performance
With the battery being the most expensive EV component, many different types of batteries have been researched to meet essential characteristics, such as efficient energy storage, lower cost, safety, and longer life.
A battery’s state of health (SOH) is understood to deteriorate over time, affecting the maximum usable range directly over time.
Canadian company, Geotab, has developed a fleet management tool based on the analysis of 6,300 fleet and consumer electric vehicles. The study confirms that EV battery lifespan is around eight years or 100,000 miles on average. This analysis depends upon the manufacturer, country, and several other factors, including charge level, topography, temperature, driving habits, and vehicle load.
Although the EV battery possesses an incredibly prosperous future, the current limitation of lower power energy, life cycle and safety demonstrates enhancement areas. Current electrodes are believed to have low electrical, thermal and ionic conductivity, and poor mechanical behavior when discharged and recharged. This leads to early delamination and degradation.
Ultra-Fast Carbon Electrodes
The availability of freely moving electrons makes carbon a highly conductive material. Another incredible advantage of carbon is its stability at high temperatures, making it a tough and durable material.
Oxford-based ZapGo has previously exploited the first carbon-ion battery that combines the super-fast charging capabilities of a supercapacitor with a Lithium-ion battery's performance.
In 2014, Power Japan Plus revealed a new battery technology, Ryden dual carbon, focusing on medical devices and satellite applications, using carbon materials that last longer and charges 20 times faster than lithium.
NAWA’s new Vertically Aligned Carbon nanotube (VACNT) electrode for batteries is expected to increase battery capacity by a factor of up to three while reducing charging time down to minutes instead of hours.
Carbon Nanotubes (CNTs) are covalently bonded carbon atoms that consist of rolled-up sheets of single-layer graphene. Their sp2 molecular orbitals with the fourth free valence electron is believed to be highly mobile, giving them their desirable properties of high conductivity and strength.
CNTs have 400 times the mechanical tensile strength of steel and a superior thermal conductivity to diamonds. Due to its VACNTs with the arrangement of 100 billion nanotubes per cm2, NAWA’s newly discovered Ultra-Fast Carbon Electrode is associated with the highest ionic conductivity with the highest electrical and thermal conductivity.
What equipment is available to assess properties of a surface?
Electric Vehicle Battery Developments
Despite the challenges of high price and manufacturing techniques, popular EV manufacturers, such as Tesla, Honda, BMW, Ford, and Porsche, have utilized lithium-ion battery technology in their EV in an attempt to replace combustion engine vehicles.
With the electrodes accounting for almost 25% of the total battery cost, today’s global lithium-ion battery market is worth more than $35 billion.
The blooming opportunities in EV batteries to complement the existing technology has been an exciting challenge for many scientists. Researchers at the University of Texas at Austin have explored cobalt-free Lithium iron phosphate cathodes to reduce the cost, increase lifecycles, discharge, and recharge rates.
Another invention, a glass battery, adds sodium or lithium to the glass to form an electrode in the battery. This is more affordable, stable and can handle higher temperatures better.
A startup in Cambridge, UK, Echion Technologies, has reportedly developed a mixed niobium anode for high-capacity lithium batteries to reduce the charging time to as little as six minutes.
Alternatively, sulfur as a common element has been designed with lithium to produce a lithium-sulfur battery at Monash University. It has been tested to give a longer battery life of five days on a cell phone.
NAWA’s Ultra-Fast Carbon Electrode is a considerable step towards designing effective electrodes that are safe and affordable.
Since it eliminates powder-based systems and relies less on rare-earth materials, the technology reduces battery systems' negative environmental impact.
NAWA also believes that its new design can offer significant cost savings while providing several desirable characteristics in one package, such as a considerable increase in power, energy storage, and lifecycle, as well as being clean. Due to its high durability, the ultra-fast carbon electrodes are applicable in many different applications, such as telephones, cars, renewable energies and buildings.
Written by
Parva Chhantyal
After graduating from The University of Manchester with a Master's degree in Chemical Engineering with Energy and Environment in 2013, Parva carried out a PhD in Nanotechnology at the Leibniz University Hannover in Germany. Her work experience and PhD specialized in understanding the optical properties of Nano-materials. Since completing her PhD in 2017, she is working at Steinbeis R-Tech as a Project Manager
Mentioned in this article Echion Technologies "Echion cells can safely perform a full fast charge in 6 min, more than 5 times faster than standard Li-ion cells."
Echion Technologies is a spinout from the University of Cambridge Engineering Department, using proprietary battery active materials to develop next-generation Li-ion batteries
SOURCE: AZONANO
Superfast electrode promises step change in battery performance
7th October 2020 9:58 am
French energy storage specialist NAWA Technologies has unveiled a carbon nanotube-based battery electrode that is said to be the fastest of its kind in the world.
The so-called Ultra Fast Electrode could, it is claimed, improve power by a factor of 10, energy storage by up to three, lifecycle by up to five and reduce charging time down to minutes instead of hours.
According to the Aix-en-Provence based firm one of the major limitations of battery power, energy and lifecycle is the powders used to make electrodes. These can lead to low electrical, thermal and ionic conductivity; poor mechanical behaviour when discharged and recharged; and can also contribute to early delamination and degradation leading to safety and lifecycle issues.
The new electrode – which is based on NAWA’s patented vertically-aligned carbon nanotube (VACNT) – combines ionic conductivity – thanks to a 3D fully accessible nanostructure – with high electrical and thermal conductivity, provided by its arrangement of 100 billion nanotubes per square centimetre, all vertically aligned.
With electrodes accounting for almost 25 per cent of the total battery cost and today’s global lithium-ion battery market worth in excess of $35bn, NAWA believes that its new design can offer significant cost savings.
According to statement from the company the electrode is a universal system, available as a both primer for existing electrodes – where the VACNT increases electrical conduction, and as a full 3D-electrode where the VACNT serve as a framework on which lithium insertion material can be coated. NAWA is developing different concepts of coatings with various chemistries and partners – it expects the technology to be introduced and in production as early as 2023.
The technology is also said to be easily recyclable and eco-disposable at the end of its lifecycle, with NAWA estimating that the technology could reduce could reduce the CO2footprint of a lithium battery cell by as much as 60 per cent.
One of the key markets for the technology is expected to be the automotive sector, which currently accounts for 75 per cent of lithium-ion battery production. The company claims that an advanced lithium-ion battery with an Ultra Fast Carbon Electrode could double the kWh stored, meaning EVs could draw on more power to go further, or faster, making 1,000km ranges commonplace in a mass market for EVs. Charging time could be reduced to as little as five minutes for an 80 per cent charge, while battery lifecycle could be improved by a factor of up to five, it added.
Ulrik Grape, CEO of NAWA Technologies said: “NAWA’s Ultra Fast Carbon Electrode will allow us to charge batteries faster, go further and for longer – and all with a product based on one of the world’s most abundant and green materials: carbon.
“Our technology can help to dramatically reduce the environmental impact of battery systems, so much so that we believe this electrode innovation could halve the time in which an electric vehicle pays back the CO2 created in its manufacture – as well as being able to recharge in the same time it takes to refuel, and drive the same distance on electricity as a tank of gas.”
SOURCE: THE ENGINEER
Image Credit: Sergii Chernov/Shutterstock.com
France-based Nawa Technologies (NAWA) has introduced a ground-breaking ultra-fast carbon battery with unique electrode materials, combining the best nano and clean technologies to store more electricity than current batteries and improve performance.
The transportation sector contributes approximately 23% of greenhouse gases worldwide. In 2015, to address this problem, "Paris declaration on ElectroMobility and Climate Change and Call to Action" announced plans to reduce global warming by more than 2 degrees Celsius. This goal is only achievable if 20% of all vehicles by 2030 are electric vehicles (EV).
EV Battery Performance
With the battery being the most expensive EV component, many different types of batteries have been researched to meet essential characteristics, such as efficient energy storage, lower cost, safety, and longer life.
A battery’s state of health (SOH) is understood to deteriorate over time, affecting the maximum usable range directly over time.
Canadian company, Geotab, has developed a fleet management tool based on the analysis of 6,300 fleet and consumer electric vehicles. The study confirms that EV battery lifespan is around eight years or 100,000 miles on average. This analysis depends upon the manufacturer, country, and several other factors, including charge level, topography, temperature, driving habits, and vehicle load.
Although the EV battery possesses an incredibly prosperous future, the current limitation of lower power energy, life cycle and safety demonstrates enhancement areas. Current electrodes are believed to have low electrical, thermal and ionic conductivity, and poor mechanical behavior when discharged and recharged. This leads to early delamination and degradation.
Ultra-Fast Carbon Electrodes
The availability of freely moving electrons makes carbon a highly conductive material. Another incredible advantage of carbon is its stability at high temperatures, making it a tough and durable material.
Oxford-based ZapGo has previously exploited the first carbon-ion battery that combines the super-fast charging capabilities of a supercapacitor with a Lithium-ion battery's performance.
In 2014, Power Japan Plus revealed a new battery technology, Ryden dual carbon, focusing on medical devices and satellite applications, using carbon materials that last longer and charges 20 times faster than lithium.
NAWA’s new Vertically Aligned Carbon nanotube (VACNT) electrode for batteries is expected to increase battery capacity by a factor of up to three while reducing charging time down to minutes instead of hours.
Carbon Nanotubes
Carbon Nanotubes (CNTs) are covalently bonded carbon atoms that consist of rolled-up sheets of single-layer graphene. Their sp2 molecular orbitals with the fourth free valence electron is believed to be highly mobile, giving them their desirable properties of high conductivity and strength.
CNTs have 400 times the mechanical tensile strength of steel and a superior thermal conductivity to diamonds. Due to its VACNTs with the arrangement of 100 billion nanotubes per cm2, NAWA’s newly discovered Ultra-Fast Carbon Electrode is associated with the highest ionic conductivity with the highest electrical and thermal conductivity.
Electric Vehicle Battery Developments
Despite the challenges of high price and manufacturing techniques, popular EV manufacturers, such as Tesla, Honda, BMW, Ford, and Porsche, have utilized lithium-ion battery technology in their EV in an attempt to replace combustion engine vehicles.
With the electrodes accounting for almost 25% of the total battery cost, today’s global lithium-ion battery market is worth more than $35 billion.
The blooming opportunities in EV batteries to complement the existing technology has been an exciting challenge for many scientists. Researchers at the University of Texas at Austin have explored cobalt-free Lithium iron phosphate cathodes to reduce the cost, increase lifecycles, discharge, and recharge rates.
Another invention, a glass battery, adds sodium or lithium to the glass to form an electrode in the battery. This is more affordable, stable and can handle higher temperatures better.
A startup in Cambridge, UK, Echion Technologies, has reportedly developed a mixed niobium anode for high-capacity lithium batteries to reduce the charging time to as little as six minutes.
Alternatively, sulfur as a common element has been designed with lithium to produce a lithium-sulfur battery at Monash University. It has been tested to give a longer battery life of five days on a cell phone.
NAWA’s Ultra-Fast Carbon Electrode is a considerable step towards designing effective electrodes that are safe and affordable.
Since it eliminates powder-based systems and relies less on rare-earth materials, the technology reduces battery systems' negative environmental impact.
NAWA also believes that its new design can offer significant cost savings while providing several desirable characteristics in one package, such as a considerable increase in power, energy storage, and lifecycle, as well as being clean. Due to its high durability, the ultra-fast carbon electrodes are applicable in many different applications, such as telephones, cars, renewable energies and buildings.
Written by
Parva Chhantyal
After graduating from The University of Manchester with a Master's degree in Chemical Engineering with Energy and Environment in 2013, Parva carried out a PhD in Nanotechnology at the Leibniz University Hannover in Germany. Her work experience and PhD specialized in understanding the optical properties of Nano-materials. Since completing her PhD in 2017, she is working at Steinbeis R-Tech as a Project Manager
Mentioned in this article Echion Technologies "Echion cells can safely perform a full fast charge in 6 min, more than 5 times faster than standard Li-ion cells."
Echion Technologies is a spinout from the University of Cambridge Engineering Department, using proprietary battery active materials to develop next-generation Li-ion batteries
SOURCE: AZONANO
Superfast electrode promises step change in battery performance
7th October 2020 9:58 am
French energy storage specialist NAWA Technologies has unveiled a carbon nanotube-based battery electrode that is said to be the fastest of its kind in the world.
The so-called Ultra Fast Electrode could, it is claimed, improve power by a factor of 10, energy storage by up to three, lifecycle by up to five and reduce charging time down to minutes instead of hours.
According to the Aix-en-Provence based firm one of the major limitations of battery power, energy and lifecycle is the powders used to make electrodes. These can lead to low electrical, thermal and ionic conductivity; poor mechanical behaviour when discharged and recharged; and can also contribute to early delamination and degradation leading to safety and lifecycle issues.
The new electrode – which is based on NAWA’s patented vertically-aligned carbon nanotube (VACNT) – combines ionic conductivity – thanks to a 3D fully accessible nanostructure – with high electrical and thermal conductivity, provided by its arrangement of 100 billion nanotubes per square centimetre, all vertically aligned.
With electrodes accounting for almost 25 per cent of the total battery cost and today’s global lithium-ion battery market worth in excess of $35bn, NAWA believes that its new design can offer significant cost savings.
According to statement from the company the electrode is a universal system, available as a both primer for existing electrodes – where the VACNT increases electrical conduction, and as a full 3D-electrode where the VACNT serve as a framework on which lithium insertion material can be coated. NAWA is developing different concepts of coatings with various chemistries and partners – it expects the technology to be introduced and in production as early as 2023.
The technology is also said to be easily recyclable and eco-disposable at the end of its lifecycle, with NAWA estimating that the technology could reduce could reduce the CO2footprint of a lithium battery cell by as much as 60 per cent.
One of the key markets for the technology is expected to be the automotive sector, which currently accounts for 75 per cent of lithium-ion battery production. The company claims that an advanced lithium-ion battery with an Ultra Fast Carbon Electrode could double the kWh stored, meaning EVs could draw on more power to go further, or faster, making 1,000km ranges commonplace in a mass market for EVs. Charging time could be reduced to as little as five minutes for an 80 per cent charge, while battery lifecycle could be improved by a factor of up to five, it added.
Ulrik Grape, CEO of NAWA Technologies said: “NAWA’s Ultra Fast Carbon Electrode will allow us to charge batteries faster, go further and for longer – and all with a product based on one of the world’s most abundant and green materials: carbon.
“Our technology can help to dramatically reduce the environmental impact of battery systems, so much so that we believe this electrode innovation could halve the time in which an electric vehicle pays back the CO2 created in its manufacture – as well as being able to recharge in the same time it takes to refuel, and drive the same distance on electricity as a tank of gas.”
SOURCE: THE ENGINEER
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