Graphene Come To Your Side
Car weight loss
And the current people in the life of the most widely used in the field of graphenes on the number of traffic. "The bulk density of the graphene powder is only 3 g / l, that is, a 500 ml mineral water bottle is filled with graphene only weighs 1.5 grams, but graphene is 200 times stronger than steel, The strength of the largest material. "Li Xiaoming said that the characteristics of graphene make it an ideal lightweight areas of transport materials.
Data show that if the vehicle weight reduction of 10%, fuel efficiency can be increased by 6% to 8%; car preparation quality for each reduction of 100 kg, 100 km fuel consumption can be reduced 0.3 to 0.6 liters. Therefore, it is essential to improve the economy of the vehicle by reducing the weight of the vehicle body by the graphene modification treatment. In terms of driving, after the weight of the car, the overall acceleration of the car will be significantly improved, the sensitivity of control becomes higher, vehicle control stability, noise, vibration and other aspects are improved.
In the automotive tires, Sichuan University, State Key Laboratory of Polymer Materials Engineering has independently developed the world's first graphene rubber tires. In addition, the first aircraft using the graphene-reinforced wing model aircraft Prospero in the British Farnborough International Airshow successful flight; in 2016 at the European composite materials exhibition, exhibited a equipped with graphene - polypropylene composite Propeller blades of the UAV, mechanical properties and thermal performance have been improved.
Energy storage is the main application area of graphene. "The appearance of graphene battery to achieve the 'green life, green travel' concept, really lead the green life." Chinese Academy of Sciences, Shanxi coal chemical assistant researcher Dr. Su Fangyuan said that graphene used in battery products, such as the current number of cities The street has been running on the super capacitor new energy bus. Super capacitor is a traditional capacitor and battery between the electrochemical energy storage device, near the bus, electronic toys, emergency lights, as far as the smart grid, power plants have their place, and the super capacitor The material used is graphene.
At present, many electric vehicles to lithium-ion battery as the power source, lithium battery because of its own characteristics of the charging time is generally longer (2 to 3 hours). Graphene as a nano-conductive additive, its innovative applications in lithium can significantly reduce the internal resistance, improve the charging rate, charging time is expected to shorten to 1 hour. Researchers to reporters on-site demonstration of graphene capacitors rapid charge and discharge experiments, the reporter saw a small piece of graphene produced by the battery charge and discharge only ten seconds.
At the same time, adding graphene can also reduce the battery from the loss and heat, enhance the safety performance of the battery, and to a certain extent, improve the battery energy density, increase the car mileage, ease the journey anxiety, improve vehicle utilization.