The northwest Pacific national laboratory has developed a new battery electrolyte formula designed to extend battery life and battery capacity to improve the mileage of electric vehicles, foreign media reported.
In an independent project, engineers at the University of Colorado in the us are developing electric car technology to ensure the use of wireless charging technology in the vehicle's driving process.The new battery electrolyte could double the battery's life span and increase the range of electric cars by 2-3 times.PNNL focuses on the current challenges and technical challenges of lithium ion batteries.
The researchers to join in the electrolyte the fluoride solvent, lithium salts will become salinization cluster, can give the solution local ball high concentrations of lithium, the electrolyte corrosion, so as to avoid the formation of lithium dendrites.
When crystallized, these crystals tend to form dendrites or dendrites, resembling snowflakes and frost patterns.In addition, the lithium dendrite can lead to short circuit of the battery and shorten its service life.
The new idea for the electrolyte has been tested on battery cells in the lab, but the core is only about the size of a watch battery.In charge and discharge after 100 times, although traditional electrolyte can still maintain its battery capacity, but new research and development of the electrolyte can withstand 700 times charging and discharging process, made seven times over the life of the battery.
The idea of using electric field to transmit the radio can be considered unachievable in practical application, because the gap between the vehicle and the road is large, and the current capacity is very small.
The researchers designed arrays of parallel metal plates, each composed of a base plate and a top plate, with a gap of 12 centimeters.The roof is the power receiving plate, connected to the vehicle, and the bottom plate is the transmission version of the battery, which is fixed on the road surface.