2 results about "Electrochemical double layer capacitor" patented technology

A kind of network configuration type hybrid energy storage system dynamic impedance modeling and inertia collaborative analysis method includes: the fractional order dynamic characteristic model of lithium ion battery pack and electrochemical double layer capacitor module is built, and the key parameters of lithium ion battery pack and electrochemical double layer capacitor module are obtained using measured data;The energy storage state of lithium ion battery pack and electrochemical double layer capacitor module is calculated respectively;The dynamic control model of network configuration type hybrid energy storage system is established, and the key parameters of lithium ion battery pack and electrochemical double layer capacitor module are imported;According to the energy storage state of lithium ion battery pack and electrochemical double layer capacitor module calculated, and the dynamic control model of network configuration type hybrid energy storage system established, the virtual inertia expression of system is deduced.The method can comprehensively consider the complex dynamic characteristics such as internal resistance of energy storage element, interface reaction kinetics characteristics and charge distribution non-uniformity, so as to accurately reflect the influence of energy storage element dynamic characteristics on system inertia.

This invention relates to an electrical energy storage device comprising: high surface area fibers (e.g., fibers and / or microfibers with a shape) coated with carbon (graphite, expanded graphite, activated carbon, carbon black, carbon nanofibers, CNTs, or graphite-coated CNTs); an electrolyte; and / or an electrode active material (e.g., lead oxide) located in an electrode. The electrode is used to form an electrical storage device such as an electrochemical cell, an electrochemical double-layer capacitor, or an asymmetric capacitor.