# US 9,005,786 B2 · Integrated cell voltage sense line fusing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,005,786 B2 - Document ID: US9005786B2 - Status: Granted - Kind: B2 - Application number: 13/278,283 - Filed: 2011-10-21 - Published: 2013-04-25 - Granted: 2015-04-14 - Earliest claimed: 2011-10-21 - Assignees: GM Global Technology Operations LLC - Applicants: Chris R. Farmer - Inventors: Chris R. Farmer - Web page: https://patentgrep.com/patent/US9005786B2 ## CPC - H01M 10/42: Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells (H01M10/60 takes precedence) - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/4257: {Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries} - H01M 50/119: Metals - H01M 50/121: Organic material - H01M 50/124: having a layered structure - H01M 50/417: Polyolefins - H01M 50/531: Electrode connections inside a battery casing - H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing} - H01M 2200/103: Fuse - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - Y02T 10/70: Energy storage systems for electromobility, e.g. 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 - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Lithium-ion batteries, unlike other chemistries, may need the voltage of every cell monitored. This may employ a wiring harness or interconnect board that connects the leads of each cell to battery monitoring electronics. These leads can be protected from each other by one or more methods including physical segregation, insulation, and fusing. If a fuse is used it can be located as close as possible to the terminal of the cell. The fuse can be located inside the sealed compartment of the cell itself. The leads would be passed out of the cell in a second location allowing the use of alternative sense lead wiring harnesses or interconnect board designs that save on packaging cost and volume. By locating the fuse inside the cell, design and validation efforts involved in placing a fuse inline with the wiring harness are eliminated. ## Claims ### Claim 1 A battery comprising: a sealed container defining a continuous interior region; an electrolyte disposed within the continuous interior region; an electrode assembly disposed within the continuous interior region, the electrode assembly including a first electrode; a first tab electrically coupled to the first electrode, the first tab exiting the container; a first overcurrent protective device disposed within the continuous interior region and electrically coupled to the first electrode; and a first lead electrically coupled to the first electrode within the continuous interior region, the first lead further electrically coupled to the first overcurrent protective device within the continuous interior region and subsequently exiting the container. ### Claim 2 (depends on 1) The battery of claim 1, wherein the first overcurrent protective device is electrically coupled to the first electrode via the first tab. ### Claim 3 (depends on 1) The battery of claim 1, wherein: the electrode assembly further comprises a second electrode and a separator disposed between the first electrode and the second electrode; and the battery further comprises: a second tab electrically coupled to the second electrode, the second tab exiting the container; a second overcurrent protective device disposed within the continuous interior region and electrically coupled to the second electrode; and a second lead electrically coupled to the second overcurrent protective device, the second lead exiting the container. ### Claim 4 (depends on 3) The battery of claim 3, wherein the second overcurrent protective device is electrically coupled to the second electrode via the second tab. ### Claim 5 (depends on 3) The battery of claim 3, wherein the first electrode comprises a negative collector with a negative active material and the second electrode comprises a positive collector with a positive active material. ### Claim 6 (depends on 3) The battery of claim 3, wherein the separator includes one of a polyethylene film, a polypropylene film, and combinations thereof. ### Claim 7 (depends on 1) The battery of claim 1, wherein the electrolyte comprises a lithium salt and an organic solvent. ### Claim 8 (depends on 7) The battery of claim 7, wherein the lithium salt includes one of LiPF6, LIBF4, and LiCIO4, and the organic solvent includes one of a linear carbonate, cyclic carbonate, and combinations thereof. ### Claim 9 (depends on 1) The battery of claim 1, wherein the container comprises a pouch comprising a laminate material of aluminum and plastic. ### Claim 10 (depends on 1) The battery of claim 1, wherein the first overcurrent protective device comprises a sacrificial device. ### Claim 11 (depends on 1) The battery of claim 1, wherein the first overcurrent protective device comprises a switchable device. ### Claim 12 (depends on 1) The battery of claim 1, wherein the first overcurrent protective device comprises a flexible printed circuit board (FPCB) comprising a fuse or fusible trace. ### Claim 13 (depends on 12) The battery of claim 12, wherein the FPCB is affixed to an edge of the continuous interior region. ### Claim 14 A lithium-ion battery comprising: a container comprising a flexible, hermetically sealed pouch defining a continuous interior region; an electrolyte disposed within the continuous interior region, the electrolyte comprising a lithium salt and an organic solvent; an electrode assembly disposed within the continuous interior region, the electrode assembly including a first electrode, a second electrode, and a separator disposed between the first electrode and the second electrode; a first tab electrically coupled to the first electrode, the first tab exiting the container; a second tab electrically coupled to the second electrode, the second tab exiting the container; a first overcurrent protective device disposed within the continuous interior region and electrically coupled to the first electrode; a second overcurrent protective device disposed within the continuous interior region and electrically coupled to the second electrode; a first lead electrically coupled to the first electrode within the continuous interior region, the first lead further electrically coupled to the first overcurrent protective device within the continuous interior region and subsequently exiting the container; and a second lead electrically coupled to the second electrode within the continuous interior region, the second lead further electrically coupled to the second overcurrent protective device within the continuous interior region and subsequently exiting the container. ### Claim 15 (depends on 14) The lithium-ion battery of claim 14, wherein the first electrode, the second electrode, and the separator form a cell in the electrode assembly and the electrode assembly further comprises a plurality of cells with the first tab electrically coupled to the first electrode of each cell and the second tab electrically coupled to the second electrode of each cell. ### Claim 16 (depends on 14) The lithium-ion battery of claim 14, wherein the first overcurrent protective device is electrically coupled to the first electrode via the first tab and the second overcurrent protective device is electrically coupled to the second electrode via the second tab. ### Claim 17 (depends on 14) The lithium-ion battery of claim 14, wherein the first overcurrent protective device and the second overcurrent protective device each comprise a flexible printed circuit board (FPCB) comprising a fuse or fusible trace. ### Claim 18 A method of protecting a battery system comprising: providing an interruptable electrical current between a battery and a battery monitoring system using a first overcurrent protective device disposed within the battery, wherein the battery comprises: a sealed container defining a continuous interior region; an electrolyte disposed within the continuous interior region; an electrode assembly disposed within the continuous interior region, the electrode assembly including a first electrode; a first tab electrically coupled to the first electrode, the first tab exiting the container; the first overcurrent protective device disposed within the continuous interior region and electrically coupled to the first electrode; and a first lead electrically coupled to the first electrode within the continuous interior region, the first lead further electrically coupled to the first overcurrent protective device within the continuous interior region and subsequently exiting the container and electrically coupled to the battery monitoring system. ### Claim 19 (depends on 18) The method of claim 18, wherein the first overcurrent protective device comprises a fuse. ### Claim 20 (depends on 1) A battery system comprising: a battery according to claim 1; and one of a sensing lead wiring harness and an interconnect board electrically coupled to the first lead outside of the container, wherein the electrical coupling between the first lead outside of the container and the one of the sensing lead wiring harness and the interconnect board is non-fused.