# US 8,785,028 B1 · High conductivity battery contact > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,785,028 B1 - Document ID: US8785028B1 - Status: Granted - Kind: B1 - Application number: 13/368,343 - Filed: 2012-02-08 - Granted: 2014-07-22 - Earliest claimed: 2012-02-08 - Assignees: NTS Works, Inc. - Applicants: Neal Tate Saiki - Inventors: Neal Tate Saiki - Web page: https://patentgrep.com/patent/US8785028B1 ## CPC - H01M 50/528: Fixed electrical connections, i.e. not intended for disconnection - H01M 50/124: having a layered structure - H01M 50/1243: {characterised by the internal coating on the casing} - H01M 50/545: formed by the casing of the cells (cup shaped terminals adapted for cells having curved cross-section H01M50/56) - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A high conductivity battery contact that comprises: a printed circuit board, a compressive spring, a tab containing thin, flat and highly electrically conductive metal. Said tab has three sections: a mounting section connected to said printed circuit board, a flexible intermediate section and a contact section with an outward facing surface roughly parallel with said circuit board. These parts form a layered assembly with said compressive spring positioned between the tab contact section and the printed circuit board. When a cylindrical battery cell is placed into position, the tab contact section is pressed into contact against an end of said cylindrical battery cell by said compressive spring. ## Claims ### Claim 1 A high conductivity battery contact for a cylindrical battery cell that has a length that is greater than twice its diameter, comprising: a printed circuit board; a tab substantially comprised of copper, gold, silver, or aluminum, the tab comprising: a mounting section electrically and physically connected to the printed circuit board; a flexible intermediate section; and a contact section having an inward facing surface and an outward facing surface; and an elastomeric pad in contact with the inward facing surface of the contact section and disposed between the contact section and the printed circuit board, pushing the outward facing surface of the contact section against an end of the cylindrical battery cell. ### Claim 2 (depends on 1) The high conductivity battery contact of claim 1, wherein the printed circuit board provides structural support to one or more cylindrical battery cells in a battery module. ### Claim 3 (depends on 1) The high conductivity battery contact of claim 1, wherein the tab has a thickness of 0.001 inches to 0.010 inches. ### Claim 4 (depends on 1) The high conductivity battery contact of claim 1, wherein the elastomeric material comprises silicone. ### Claim 5 (depends on 1) The high conductivity battery contact of claim 1, wherein the elastomeric material comprises silicone foam. ### Claim 6 (depends on 1) The high conductivity battery contact of claim 1, wherein the tab is connected to the printed circuit board by soldering, welding, or an electrically conductive adhesive. ### Claim 7 A high conductivity battery contact for a cylindrical battery cell that has a length that is greater than twice its diameter, comprising: a printed circuit board; a substantially “C” or substantially oval shaped tab substantially comprised of copper, gold, silver, or aluminum, the tab comprising: a mounting section electrically and physically connected to the circuit board; a flexible intermediate section; and a contact section having an outward facing surface; and an elastomeric pad disposed at least partially inside the substantially “C” or substantially oval shaped tab, the elastomeric pad configured to force the contact section into electrical communication with an end of a cylindrical battery cell. ### Claim 8 (depends on 7) The high conductivity battery contact of claim 7 wherein the printed circuit board provides structural support for one or more cylindrical battery cells in a battery module. ### Claim 9 (depends on 7) The high conductivity battery contact of claim 7, wherein the tab has a thickness of 0.001 inches to 0.010 inches. ### Claim 10 (depends on 7) The high conductivity battery contact of claim 7, wherein the elastomeric material comprises silicone. ### Claim 11 (depends on 7) The high conductivity battery contact of claim 7, wherein the elastomeric material comprises silicone foam. ### Claim 12 (depends on 7) The high conductivity battery contact of claim 7, wherein the tab is electrically and mechanically connected to the printed circuit board by soldering or an electrically conductive adhesive. ### Claim 13 (depends on 1) The high conductivity battery contact of claim 1, wherein the outward facing surface of the contact section is substantially parallel with the circuit board. ### Claim 14 (depends on 7) The high conductivity battery contact of claim 7, wherein the outward facing surface of the contact section is substantially parallel with the circuit board. ### Claim 15 (depends on 7) The high conductivity battery contact of claim 7, wherein the tab is plated with metal. ### Claim 16 (depends on 7) The high conductivity battery contact of claim 7, wherein the shape of the tab comprises one or more straight sections or a break. ### Claim 17 (depends on 1) The high conductivity battery contact of claim 1, wherein the tab is plated with metal. ### Claim 18 (depends on 1) The high conductivity battery contact of claim 1, wherein the tab is configured into a substantially “C” or substantially oval shape, and wherein the elastomeric pad is disposed at least partially inside the tab. ### Claim 19 (depends on 18) The high conductivity battery contact of claim 18, wherein the substantially “C” or substantially oval shaped tab is configured where the tab overlaps itself. ### Claim 20 (depends on 18) The high conductivity battery contact of claim 18, wherein the substantially “C” or substantially oval shaped tab is configured with a gap between tab ends.