The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2011
Filed:
May. 14, 2007
Andrew C. Chu, Cambridge, MA (US);
Antoni S. Gozdz, Marlborough, MA (US);
Gilbert N. Riley, Jr., Marlborough, MA (US);
C. Michael Hoff, Boxborough, MA (US);
Andrew C. Chu, Cambridge, MA (US);
Antoni S. Gozdz, Marlborough, MA (US);
Gilbert N. Riley, Jr., Marlborough, MA (US);
C. Michael Hoff, Boxborough, MA (US);
A123 Systems, Inc., Waltham, MA (US);
Abstract
A compact, robust, multifunctional and highly manufacturable rechargeable cylindrical electrochemical cell is provided. In some embodiments, a cell can include a spirally wound assembly having an anode sheet and a cathode sheet separated by separator membranes, each sheet having a electroactive layer on a current collector. At least one of the current collectors can be in electrical communication with conducting tabs that extend from at least one of the anode sheet and the cathode sheet, the conducting tabs extends from an end face of the spirally wound assembly. The centers of the plurality of conducting tabs can be located within a 90 degree quadrant of an end face of the spirally wound assembly.