DuPont Launches Energainâ¢ Separators for High
|DuPont™ Energain™ separators boost performance and safety of lithium ion batteries. It's a sheet between two electrodes to prevent them from touching while letting lithium ions pass back and forth to allow the charge and discharge of the battery.|
DuPont™ Energain™ battery separators can increase power 15–30%, increase battery life by up to 20% and improve battery safety by providing stability at high temperatures. With more battery power, drivers can travel farther on a single charge and accelerate more quickly and safely. For automobile and battery manufacturers, more battery power can reduce the number of batteries typically required in today’s hybrid and electric vehicles.
While the initial uses for the separator are in hybrid and electric vehicle batteries, the technology also will be targeted for batteries in renewable energy, grid applications and specialty consumer applications, including laptops, cell phones and power tools. Other products made using DuPont’s proprietary nanofiber technology will target a broad range of liquid filtration applications for the biopharmaceutical, microelectronics, and food and beverage industries, offering superior retention, filter life and flow resistance.
DuPont has begun construction on a facility in Chesterfield County, Va. (U.S.), to manufacture product for development and commercial sale. The new facility is expected to start up in the first quarter of 2011 and will initially be able to provide enough material to supply up to 20% of today's hybrid and electric vehicle needs.
DuPont estimates that by 2015 the market for high-performance lithium ion batteries alone will total more than $7 billion annually, primarily for electric vehicle applications and some photovoltaics and grid storage.
Typical hybrid vehicles contain between 50 and 70 batteries; plug-in electric vehicles with range-extending motors have 80 to more than 200 batteries; and fully electric vehicles carry 150 or more. Within each battery, the separator is a sheet positioned between the two electrodes. It functions as a barrier that prevents the electrodes from touching and shorting while letting lithium ions pass back and forth to allow the charge and discharge of the battery.
To learn more about DuPont™ Energain™, click here.
DuPont Materials in Hybrid and Electric Vehicles.