PNNL develops a new electrolyte battery that doubles the service life by 7 times -Lithium - Ion Battery Equipment
According to foreign media reports, the Pacific Northwest National Laboratory (PNNL) has developed a new battery electrolyte formula, which aims to extend the service life and battery capacity of the battery, thereby increasing the cruising range of electric vehicles.
In a separate project, engineers at the University of Colorado (University of Colorado) are developing electric vehicle technology that will allow wireless charging while the vehicle is in motion. The new battery electrolyte can increase the service life of the battery by 7 times, thereby increasing the mileage of electric vehicles by 2-3 times. PNNL focuses on addressing the current challenges and technical difficulties of lithium-ion batteries.(Lithium - Ion Battery Equipment)
The researchers added a fluorine-based solvent to the electrolyte, and the lithium-based salts will become salt clusters, which can form local spherical high-concentration lithium salts in the solution to prevent the electrolyte from being damaged. Corrosion, thereby avoiding the formation of lithium dendrites.
During crystallization, such lithium salt crystals tend to form crystal dendrites or dendritic structures, which resemble snowflakes and frost patterns. In addition, lithium dendrites are prone to short-circuit the battery and shorten its service life.
The new electrolyte concept has been tested for performance on laboratory battery cells, but the cells are only about the size of a watch battery. After charging and discharging 100 times, although the traditional electrolyte can still maintain its battery capacity, the newly developed electrolyte can withstand 700 charging and discharging processes, which doubles the service life of the battery by 7 times.
The idea of using electric fields for wireless power transfer was considered impractical in practice because of the large gap between the vehicle and the road and the resulting small current capacity.
The researchers designed a series of parallel metal plates, each set of metal plates consists of a bottom plate and a top plate (topplate), with a gap of 12 cm between them. The top plate is the power receiving plate, which is connected to the vehicle, while the bottom plate is the power transmission plate, which is fixed on the road.
The device can transmit megahertz-level current, using a gap of 12 centimeters to deliver current.
In a separate project, engineers at the University of Colorado (University of Colorado) are developing electric vehicle technology that will allow wireless charging while the vehicle is in motion. The new battery electrolyte can increase the service life of the battery by 7 times, thereby increasing the mileage of electric vehicles by 2-3 times. PNNL focuses on addressing the current challenges and technical difficulties of lithium-ion batteries.(Lithium - Ion Battery Equipment)
The researchers added a fluorine-based solvent to the electrolyte, and the lithium-based salts will become salt clusters, which can form local spherical high-concentration lithium salts in the solution to prevent the electrolyte from being damaged. Corrosion, thereby avoiding the formation of lithium dendrites.
During crystallization, such lithium salt crystals tend to form crystal dendrites or dendritic structures, which resemble snowflakes and frost patterns. In addition, lithium dendrites are prone to short-circuit the battery and shorten its service life.
The new electrolyte concept has been tested for performance on laboratory battery cells, but the cells are only about the size of a watch battery. After charging and discharging 100 times, although the traditional electrolyte can still maintain its battery capacity, the newly developed electrolyte can withstand 700 charging and discharging processes, which doubles the service life of the battery by 7 times.
The idea of using electric fields for wireless power transfer was considered impractical in practice because of the large gap between the vehicle and the road and the resulting small current capacity.
The researchers designed a series of parallel metal plates, each set of metal plates consists of a bottom plate and a top plate (topplate), with a gap of 12 cm between them. The top plate is the power receiving plate, which is connected to the vehicle, while the bottom plate is the power transmission plate, which is fixed on the road.
The device can transmit megahertz-level current, using a gap of 12 centimeters to deliver current.
