Cell with a Tabless Electrode

Working on electrically related problems on an everyday basis, I was drawn to read the recent patent submitted by Tesla “Cell with a Tabless Electrode”


According to the patent,..


Current cells use a jelly-roll design in which the cathode, anode, and separators are rolled together and have a cathode tab and an anode tab to connect to the positive and negative terminals of the cell can. The path of the current necessarily travels through these tabs to connectors on the outside of the battery cell. However, ohmic resistance is increased with distance when current must travel all the way along the cathode or anode to the tab and out of the cell. Furthermore, because the tabs are additional components, they increase costs and present manufacturing challenges“.


I have read the Patent (difficult to comprehend) and from experience of being instructed in several intellectual property disputes, I cannot perceive the inventive step in the submitted art to all prior art. To be blunt I consider a standard AA,..AAA and similar battery formats possess a “Tabless Electrode”.


Eur Ing Dr Robert Brown (Robert) is a Consultant Engineer in the fields Electrical Electronic and Control Engineering. Robert is also an accomplished professional Expert Witness having prepared and presented many court compliant reports and presented oral evidence within the High Court, Crown Courts and County Courts.


For further information please contact Robert via;

Email,…robert.brown@frasergeorge.com   or   robertbrown@robertbrown.uk.com

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