Mandrel for spirally winding electrochemical cell pack

Details Mandrel for spirally winding electrochemical cell pack Mandrel for spirally winding electrochemical cell pack

H - Electricity

01

M

319/104, 242/71

H01M 4/78 (2006.01)

Patent

CA 1102870

Abstract of the Disclosure A spirally wound element comprising opposite polarity plates and interleaved separator is described, for use in electrochemical cylindrically configured cells. The cell pack has a uniform predetermined cross section irrespective of variation in component thicknesses as long as such thicknesses are within specified tolerances. A mandrel for facilitating the winding of the cell pack has a pair of oppositely disposed, notched lands which extend inwardly from the peripheral surface of the mandrel for receiving leading edges of the cell pack to be wound. The mandrel also has a pair of major edge surfaces extending from the lands about a major portion of the periphery of the mandrel; the edge surfaces are defined by a generally spiralled curvature.

353820

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