-Charging graphene electric vehicle batteries only takes a few minutes

Charging graphene electric vehicle batteries only takes a few minutes
author:enerbyte source:本站 click29 Release date: 2024-12-05 09:10:54
abstract:
Recently, a graphene production line with an annual output of 300 tons was built and put into operation at Ningbo Moses Technology Co., Ltd. located in Cixi, which is also the world's largest graphene production line. What exactly is graphene? What does it have to do with our lives? The reporter...

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Recently, a graphene production line with an annual output of 300 tons was built and put into operation at Ningbo Moses Technology Co., Ltd. located in Cixi, which is also the world's largest graphene production line. What exactly is graphene? What does it have to do with our lives? The reporter interviewed Liu Zhaoping, the project technical leader and chief scientist of the company, as well as a researcher at the Ningbo Institute of Materials Science and Technology of the Chinese Academy of Sciences, regarding relevant issues.
The thinnest and hardest material in the world
What is graphene? Can you take a look at the finished product? "Yesterday, in the workshop, the reporter asked curiously. Liu Zhaoping did not answer directly. He first picked up two bottles of similar capacity from the table. In this bottle, there's just a little bit of graphite at the bottom, "he said as he picked up another bottle." Look, this bottle is full, it's just an equal amount of graphite processed into graphene powder
Graphene powder appears to be an extremely delicate black gray powdery substance, and under light, it seems to reflect a faint luster. Holding it in my hand, the large bottle floated lightly.
Graphene is the thinnest and hardest nanomaterial discovered in the world. It has excellent conductivity and transparency. Nowadays, electric vehicle batteries can be charged quickly in at least 3 hours. After adding graphene, lithium batteries can be charged in just a few minutes, faster than refueling a car. "Liu Zhaoping said that the main application of graphene lithium batteries is future electric vehicles. As long as the charging problem is solved, the battery technology bottleneck faced by future electric vehicles will be easily solved.
5000 yuan/gram reduced to one or two thousand one kilograms
Graphene was a Nobel Prize winning project in 2010 and is a great treasure. But why do ordinary people feel that it is far from their daily lives and rarely use it? "The reporter asked again.
Graphene is a limited resource, non renewable, and has a high production cost, making it very expensive. It costs 5000 yuan per gram, which is more than ten times the price of gold. Therefore, previously it was mostly in the laboratory stage, and ordinary people felt further away from their daily lives. "Liu Zhaoping said," Our research aims to industrialize it and make it a widely supplied industrial raw material
What about the current selling price of your products? Industrialization has greatly reduced costs. "Liu Zhaoping picked up a large glass jar from the table, which contained a black solution. This is graphene raw material, which is like a fermentation starter for brewing. We don't sell this. The functional additives we sell are like multifunctional additives with graphene flakes as the core. The price per kilogram is between 1000 and 2000 yuan
Reduce the charging time of capacitors by half
At the groundbreaking ceremony, the reporter learned that CSR Group, Shuanglu Battery, China Academy of Military Sciences, Lenovo and other units have all conducted cooperative research with the company.
On site, the staff demonstrated a capacitor. This is a collaborative research and development achievement with CSR. By replacing the original carbon black coated aluminum foil with graphene coated aluminum foil in capacitors, the charging time has been reduced by 50% and the usage time has been increased by at least 30%. For a capacitor priced at a few hundred yuan, only about 30 cents more cost is needed
Nowadays, graphite thermal conductive film is mainly used on mobile phones. If we replace it with graphene thermal conductive film, the cost can be reduced, and it can be thinner and better dissipate heat. We are conducting research and development in this area with Lenovo, "said the staff member.

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