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Title: Current Collection Through The Ends Of A Spirally Wound Electrochemical Cell

Abstract

An electrochemical cell, including a jelly-roll type electrode stack, and a method for making such cell. The electrochemical cell includes folded electrode portions which form a plane recessed from the end of the electrode stack. The folded electrode portions are preferably formed by making pairs of slits in the electrode end and bending over the electrode portions between each pair of slits. The recessed plane forms a large area to which a current collection tab is subsequently connected. A coating may be applied to the folded portions of the electrode to further increase the contact area with the current collection tab by eliminating the slight variations in the recessed plane which are due to the overlap of the folded electrode portions.

Inventors:
 [1];  [2];  [3];  [4]
  1. Ellicott City, MD
  2. Columbia, MD
  3. Baltimore, MD
  4. Parkton, MD
Issue Date:
Research Org.:
US ADVANCED BATTERY CONSORTIUM
OSTI Identifier:
879525
Patent Number(s):
5972532
Application Number:
09/071191
Assignee:
Saft America, Inc. (Valdosta, GA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
FC26-95EE50425
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Oweis, Salah, Chagnon, Guy, Alunans, Peter, and Romero, Antonio. Current Collection Through The Ends Of A Spirally Wound Electrochemical Cell. United States: N. p., 1999. Web.
Oweis, Salah, Chagnon, Guy, Alunans, Peter, & Romero, Antonio. Current Collection Through The Ends Of A Spirally Wound Electrochemical Cell. United States.
Oweis, Salah, Chagnon, Guy, Alunans, Peter, and Romero, Antonio. Tue . "Current Collection Through The Ends Of A Spirally Wound Electrochemical Cell". United States. https://www.osti.gov/servlets/purl/879525.
@article{osti_879525,
title = {Current Collection Through The Ends Of A Spirally Wound Electrochemical Cell},
author = {Oweis, Salah and Chagnon, Guy and Alunans, Peter and Romero, Antonio},
abstractNote = {An electrochemical cell, including a jelly-roll type electrode stack, and a method for making such cell. The electrochemical cell includes folded electrode portions which form a plane recessed from the end of the electrode stack. The folded electrode portions are preferably formed by making pairs of slits in the electrode end and bending over the electrode portions between each pair of slits. The recessed plane forms a large area to which a current collection tab is subsequently connected. A coating may be applied to the folded portions of the electrode to further increase the contact area with the current collection tab by eliminating the slight variations in the recessed plane which are due to the overlap of the folded electrode portions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {10}
}

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