MS. JESSICA GRACE SMITH, FNP-C
Nursing in Myrtle Beach, SC

8345406, Jan 1, 2013

Mar 23, 2009

12/408832

Dirk H. Dreissig - Myrtle Beach SC, US
Jonathan R. Knopsnyder - Myrtle Beach SC, US
Jessica M. Smith - Myrtle Beach SC, US
Lee Shinaberger - Myrtle Beach SC, US
Bharat Rawal - Surfside Beach SC, US

AVX Corporation - Myrtle Beach SC

H01G 9/038, H01G 9/035, H01G 9/022

361504, 361502, 361503, 361523, 361528, 361532, 252 622

An electric double layer capacitor that contains at least one electrochemical cell is provided. The cell contains electrodes (e. g. , two electrodes) that each contain a porous matrix of electrochemically-active particles (e. g. , carbon). An aqueous-based electrolyte is disposed in contact with the porous matrix. In accordance with the present invention, the electrolyte is provided with an anionic polymer that serves as binding agent for the electrochemically active particles and thus reduces electrolyte loss, especially at higher temperatures. Because the polymer is anionic in nature, it is generally hydrophilic and thus can retain its binding properties in the presence of water. The anionic nature of the polymer also allows it to remain stable in the presence of a corrosive polyprotic acid, which is employed in the electrolyte to enhance charge density. Thus, as a result of the present invention, a capacitor may be formed that is capable of exhibiting good electrical performance (e. g. , high capacitance and low ESR), even at high temperatures (e. g. , 70° C.

8385052, Feb 26, 2013

Dec 10, 2008

12/331818

Jessica M. Smith - Myrtle Beach SC, US
Lee Shinaberger - Surfside Beach SC, US
Bob Knopsnyder - Myrtle Beach SC, US
Gang Ning - Tempe SC, US
Bharat Rawal - Surfside Beach SC, US
Dirk Dreissig - Myrtle Beach SC, US

AVX Corporation - Myrtle Beach SC

H01G 9/00

361503, 3613214, 361322, 3613211, 361303, 3613215

A capacitor containing an electrochemical cell that includes ruthenium oxide electrodes and an aqueous electrolyte containing a polyprotic acid (e. g. , sulfuric acid) is provided. More specifically, the electrodes each contain a substrate that is coated with a metal oxide film formed from a combination of ruthenium oxide and inorganic oxide particles (e. g. , alumina, silica, etc. ). Without intending to be limited by theory, it is believed that the inorganic oxide particles may enhance proton transfer (e. g. , proton generation) in the aqueous electrolyte to form hydrated inorganic oxide complexes (e. g. , [Al(HO)] to [Al(HO)(OH)]). The inorganic oxide thus acts as a catalyst to both absorb and reversibly cleave water into protons and molecular bonded hydroxyl bridges. Because the anions (e. g. , sulfate and bisulfate ions) in the electrolyte are not bound in the coordination sphere of the formed aqua complexes, they do not impede the condensation of these complexes required to achieve the additional capacitance over the potential range.