200 times stronger, charging 1000 kilometers for 8 minutes
Graphene, the next outlet for new energy vehicles
Hall No. 4 displays new energy vehicles. The adjacent No. 5 Hall displays the latest technology of graphene automotive industry. Today, the 2018 Fifth China (Nanjing) International Energy & New Energy Automobile Exhibition opened with a new one. Materials and new energy automotive industry 'meeting', the friendly 'hug' between them will open the next door for the new energy automotive industry.
Status of car companies: New energy logistics vehicles, sales of special vehicles soared
In 2017, 99.9% of the logistics vehicles we sold were electric. Last year, the sales of electric logistics vehicles exceeded 2,000 units, which was a five-fold increase from the previous year. ' At the show, Nanjing Iveco company told reporters.
At the Iveco booth, three models of electric logistics vehicles are lined up in a row, and in the cupboards next to them are filled with various trophies, confirming their clear advantages in terms of climbing, wading, loading, etc. Currently, Iveco’s Electric logistics vehicles and SF, JD and other large customers form a partner, running in the domestic first and second tier cities. This year the company's target sprint sales of 5000 electric vehicle logistics tasks.
Nanqi Special Purpose Vehicle Co., Ltd. brought purely electric closed barrel garbage truck products. Company sources said that sales of such new energy vehicles increased by 200% last year. General sanitation vehicles run 100 kilometers a day, and electric sanitation vehicles charge once. Electricity can run 200 kilometers.
According to the person in charge of the China Electric Vehicle Industry Association, the replacement of traditional fuel vehicles with new energy vehicles is becoming the mainstream of the times. Internationally, from 2015 to 2016, European countries have announced timetables for the ban of fuel vehicles, Fiat Chrysler, Mercedes-Benz. Giant car brands such as BMW, Lincoln, and Jaguar Land Rover have announced that production of fuel will cease. In addition, China’s domestic cars such as BAIC and Chang’an also announced in late 2017 that they will cease production and sales in 2020-2025. Fuel truck, Geely Volvo announced that it will stop selling fuel discarded vehicles in 2019.
According to the data, in 2017, the sales volume in China’s auto market was 28.887 million units, which was a year-on-year increase of 3%, of which new energy vehicles sold 777,000 units, an increase of 53% year-on-year. In 2017, sales of new energy passenger vehicles in non-restricted regions increased, accounting for The ratio has increased from 41% in 2015 to 56% in 2017.
Manufacturing Exploration Path: Shortboard for Electric Vehicles, Filled Graphene
Although the growth rate of new energy vehicles is faster, many bottlenecks have not completely broken through. For consumers, 'mileage anxiety' and safety issues are all the 'stumbling blocks' for the purchase of new energy vehicles. For example, the energy density of lithium batteries is far away. Lower than gasoline, in order to obtain a higher cruising range, smart carries a heavier battery than gasoline. How to reduce the burden on new energy vehicles? A magic material called 'graphene' enters the sight of manufacturing companies.
The automotive company Briggs has published a car made of graphene at the National Graphene Institute in the UK, called BAC Mono. This is the first car in the world to use graphene. Because of the use of graphene Material, body weight reduced by 20%, strength is 200 times that of ordinary steel.
Graphenano of Spain and University of Colva, Spain have cooperated in the research and development of graphene batteries. The laboratory data proves that the battery power is about 5 times that of lithium batteries, and the charging time is only 8 minutes, and it can travel 1000 kilometers. The service life is current lithium. The battery is double. The Chaowei Group, who has been actively developing graphene batteries, briefly summarized yesterday: 'Graphene is to make the battery run further, the life is longer, and the battery in winter is more vigor!'
'Graphene can not only be used in new energy car batteries, but also in many places in the car.' At the exhibition, the front of the abundance of nanotechnology company reporters to supplement. For example, for automotive circuits, compared with silicon, electrons in graphene Less resistance to movement and less energy consumption. When used in car body anti-corrosion coatings, sprayed with graphene on the surface of steel, the body can be immersed in seawater for one month without rusting, while ordinary high performance coatings can only last for several days. The electrically heated seat is one of the necessary devices for a luxury car. Graphene is used as a reinforcing material in polystyrene, and a composite material with high strength, good electrical and thermal conductivity, and light weight can be obtained.
Waiting for the wind, car prices wait for graphene prices 'diving'
Although graphene's profound 'martial arts' has won an applause, it has been hailed as the next 'buzz' for the upgrade of the next new energy vehicle. However, the reporter found that there are still few graphene materials for automotive use at the exhibition. Iveco and other manufacturers frankly stated that Because of 'expensive'.
Wang Xu, chief engineer of Beijing Beiqi Deben Automotive Technology Center, analyzed: “Graphene is currently in a quiet period, but I think this is the same situation as when carbon fiber first entered the manufacturing industry. Carbon fiber material was silent for several years because of cost and other reasons. , but the outbreak will still burst.
The industry believes that through the improvement of technology, the price of graphene will eventually fall to an acceptable range. From the trend, the price of graphene has recently reached 5,000 yuan/g, and now the price of 1 g of graphene powder has dropped to 300 yuan. There is a lot of room for price cuts.
In addition, Wang Xu said that it takes time for the graphene to go from the depot laboratory to the market, which is determined by the characteristics of the car development. 'A lot of auto companies are already doing graphene material tests, but a new car is usually developed in 36 cycles. In the month, even if we only use the graphene material to improve the chassis of the car, the light control experiment will be done for two or three years. Consumers need to wait.
