Electrode assembly with projecting tab for battery and methods of forming same
AssigneeCustom Electronics, Inc.
InventorDuncan Culver
Life of this patent
Estimating the term…
Abstract
Embodiments of the disclosure provide an electrode assembly including: a jelly roll electrode having a plurality of electrode sheets, the plurality of electrode sheets including an anode sheet, a cathode sheet, and a separator separating the anode sheet from the cathode sheet, an electrolyte disposed between the anode sheet and the cathode sheet of the jelly roll electrode, and a tab projecting from an axial end of the plurality of electrode sheets, the tab including a subsection of the plurality of electrode sheets contacting each other at an axial end of the jelly roll electrode; and a first conductive tab coupled to the tab of the electrode assembly, wherein the first conductive tab is configured to electrically couple the electrode assembly to a battery terminal.
Claims20
An electrode assembly comprising:
- an electrode assembly including:
- a jelly roll electrode having a plurality of electrode sheets, the plurality of electrode sheets including an anode sheet, a cathode sheet, and a separator separating the anode sheet from the cathode sheet,
- an electrolyte disposed between the anode sheet and the cathode sheet of the jelly roll electrode, and
- a tab projecting from an axial end of the plurality of electrode sheets, the tab including a subsection of the plurality of electrode sheets contacting each other at an axial end of the jelly roll electrode;
- and
- a first conductive tab coupled to the tab of the electrode assembly, wherein the first conductive tab is configured to electrically couple the electrode assembly to a battery terminal.
A method of forming an electrode assembly, the method comprising:
- providing a jelly roll electrode having a plurality of electrode sheets, the plurality of electrode sheets including an anode sheet, a cathode sheet, and a separator separating the anode sheet from the cathode sheet;
- removing portions of the jelly roll electrode outside a subsection of the plurality of sheets, such that the remaining subsection of the plurality of electrode sheets projects axially from a body portion of the jelly roll electrode;
- forming a tab with the remaining subsection of the plurality of electrode sheets, wherein the tab includes the subsection of the plurality of electrode sheets contacting each other;
- coupling a first conductive tab to the tab, wherein the first conductive tab is configured to electrically couple the jelly roll electrode to a battery terminal;
- and
- injecting an electrolyte into the jelly roll electrode between the anode sheet and the cathode sheet.
A battery comprising:
- a conductive battery casing, the conductive battery casing defining a first battery terminal;
- an electrode assembly within the conductive battery casing and having a centerline axis, the electrode assembly including:
- a jelly roll electrode having a plurality of electrode sheets, the plurality of electrode sheets including an anode sheet, a cathode sheet, and a separator separating the anode sheet from the cathode sheet,
- an electrolyte within the conductive battery casing and disposed between the anode sheet and the cathode sheet of the plurality of electrode sheets, and
- a first tab projecting from an axial end of the plurality of electrode sheets, the first tab including a subsection of the plurality of electrode sheets contacting each other at a first axial end of the jelly roll electrode;
- and
- a first conductive tab coupled to the first tab of the electrode assembly;
- and
- a cell cover positioned at an axial end of the conductive battery casing, and including a second battery terminal formed on a first surface of the cell cover and electrically coupled to the first conductive tab.
Dependencies are inferred from the claim text.