Source: http://www.google.com/patents/US20080206446?ie=ISO-8859-1
Timestamp: 2014-09-19 23:15:10
Document Index: 369310827

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60']

Patent US20080206446 - Forming a first electrode film from particles, reusing the particles to form ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA dry process based capacitor and method for using one or more recyclable electrode film structure is disclosed....http://www.google.com/patents/US20080206446?utm_source=gb-gplus-sharePatent US20080206446 - Forming a first electrode film from particles, reusing the particles to form a second filmAdvanced Patent SearchPublication numberUS20080206446 A1Publication typeApplicationApplication numberUS 12/042,935Publication dateAug 28, 2008Filing dateMar 5, 2008Priority dateJul 9, 2003Also published asUS7342770, US20060146479Publication number042935, 12042935, US 2008/0206446 A1, US 2008/206446 A1, US 20080206446 A1, US 20080206446A1, US 2008206446 A1, US 2008206446A1, US-A1-20080206446, US-A1-2008206446, US2008/0206446A1, US2008/206446A1, US20080206446 A1, US20080206446A1, US2008206446 A1, US2008206446A1InventorsPorter Mitchell, Xiaomei Xi, Linda ZhongOriginal AssigneeMaxwell Technologies, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (3), Classifications (10), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetForming a first electrode film from particles, reusing the particles to form a second filmUS 20080206446 A1Abstract A dry process based capacitor and method for using one or more recyclable electrode film structure is disclosed.
CROSS-REFERENCE TO RELATED APPLICATIONS The present invention is a divisional of U.S. application Ser. No. 10/817,074, filed Apr. 2, 2004, entitled �Recyclable Dry-Particle Based Adhesive Electrode and Methods of Making Same� which claims priority from commonly assigned Provisional Application No. 60/486,002, filed Jul. 9, 2003; commonly assigned Provisional Application No. 60/486,530, filed Jul. 10, 2003; commonly assigned Provisional Application No. 60/498,346, filed Aug. 26, 2003; commonly assigned Provisional Application No. 60/498,210, filed Aug. 26, 2003; commonly assigned Provisional Application No. 60/511,273, filed Oct. 14, 2003; and commonly assigned Provisional Application No. 60/546,093, filed Feb. 19, 2004. Each of these nonprovisional and provisional applications is incorporated herein by reference in their entirety.
The dry electrode film 33 was adhered to a collector by an adhesive coating sold under the trade name Electrodag� EB-012 by Acheson Colloids Company, 1600 Washington Ave., Port Huron, Mich. 48060, Telephone 1-800-984-5581. Dry film 33 was manufactured utilizing no processing additives in a manner described further herein.
Referring now to FIG. 7 c, there are seen physical specimens of electrode obtained from devices 5, 6, and 7 shown after one week and 1 month of immersion in 1.5 M tetramethylammonium or tetrafluoroborate in acetonitrile electrolyte at a temperature of 85 degrees centigrade. The electrode sample from device 5 comprises the processing additive based EXCELLERATOR� brand of electrode film discussed above, and the electrode sample of device 7 comprises a processing additive based electrode film obtained from a 5 Farad NESCAP double-layer capacitor product, Wonchun-Dong 29-9, Paldal-Ku, Suwon, Kyonggi, 442-380, Korea, Telephone: +82 31 219 0682. As seen, electrodes from devices 5 and 7 show damage after 1 week and substantial damage after 1 month immersion in acetonitrile electrolyte. In contrast, an electrode from a device 6 made of one or more of the embodiments described further herein shows no visual damage, even after one year (physical specimen not shown) of immersion in acetonitrile electrolyte.
Referring to now to FIGS. 1 b, 1 c, and 1 d, there is seen, respectively, front, side, and top views of a jet-mill assembly 100 used to perform a dry fibrillization step 20. For convenience, the jet-mill assembly 100 is installed on a movable auxiliary equipment table 105, and includes indicators 110 for displaying various temperatures and gas pressures that arise during operation. A gas input connector 115 receives compressed air from an external supply and routes the compressed air through internal tubing (not shown) to a feed air hose 120 and a grind air hose 125, which both lead and are connected to a jet-mill 130. The jet-mill 130 includes: (1) a funnel-like material receptacle device 135 that receives compressed feed air from the feed air hose 120, and the blended carbon-binder mixture of step 18 from a feeder 140; (2) an internal grinding chamber where the carbon-binder mixture material is processed; and (3) an output connection 145 for removing the processed material. In the illustrated embodiment, the jet-mill 130 is a 4-inch Micronizer� model available from Sturtevant, Inc., 348 Circuit Street, Hanover, Mass. 02339; telephone number (781) 829-6501. The feeder 140 is an AccuRate� feeder with a digital dial indicator model 302M, available from Schenck AccuRate�, 746 E. Milwaukee Street, P.O. Box 208, Whitewater, Wis. 53190; telephone number (888) 742-1249. The feeder includes the following components: a 0.33 cubic ft. internal hopper; an external paddle agitation flow aid; a 1.0-inch, full pitch, open flight feed screw; a % hp, 90VDC, 1,800 rpm, TENV electric motor drive; an internal mount controller with a variable speed, 50:1 turndown ratio; and a 110 Volt, single-phase, 60 Hz power supply with a power cord. The feeder 140 dispenses the carbon-binder mixture provided by step 18 at a preset rate. The rate is set using the digital dial, which is capable of settings between 0 and 999, linearly controlling the feeder operation. The highest setting of the feeder dial corresponds to a feeder output of about 12 kg per hour.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5677082 *May 29, 1996Oct 14, 1997Ucar Carbon Technology CorporationCoke; graphiteUS6127474 *Aug 27, 1997Oct 3, 2000Andelman; Marc D.A high tensile strength, fluorocarbon-conductive, particle binder material useful as electrodes in a flow-through capacitor, comprises electrode formed from fibrillated fine fibers, a conductive carbon and a polymeric binderWO2001066099A2 *Mar 1, 2001Sep 13, 2001Astrazeneca AbUse of quinazoline derivatives as angiogenesis inhibitors* Cited by examinerClassifications U.S. Classification427/58International ClassificationB05D5/12Cooperative ClassificationH01G11/28, H01G11/38, Y02E60/13, H01G11/86European ClassificationH01G11/86, H01G11/38, H01G9/058, H01G9/155Legal EventsDateCodeEventDescriptionAug 9, 2011ASAssignmentOwner name: MAXWELL TECHNOLOGIES, INC., CALIFORNIAFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MITCHELL, PORTER;XI, XIAOMEI;ZHONG, LINDA;SIGNING DATES FROM 20040401 TO 20040402;REEL/FRAME:026731/0976RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google