# US 10,312,497 B2 · Rechargeable battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,497 B2 - Document ID: US10312497B2 - Status: Granted - Kind: B2 - Application number: 14/994,248 - Filed: 2016-01-13 - Published: 2017-02-23 - Granted: 2019-06-04 - Earliest claimed: 2015-08-17 - Assignees: Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd. - Inventors: Sangwon Byun; Yongchul Seo; Seungho Kwak; Sangkyoon Park - Web page: https://patentgrep.com/patent/US10312497B2 ## CPC - H01M 50/528: Fixed electrical connections, i.e. not intended for disconnection - H01M 50/538: Connection of several leads or tabs of wound or folded electrode stacks - H01M 50/588: outside the batteries, e.g. incorrect connections of terminals or busbars - H01M 2200/103: Fuse - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - 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 ## Abstract A rechargeable battery includes an electrode assembly in a case, a terminal which passes through and protrudes from a cap plate, and a current collector plate in the case. The current collector plate electrically connects the electrode assembly and the terminal portion. The current collector plate has a fuse area which includes a fuse hole having a substantially elongated shape with round sides oriented in a widthwise direction of the current collector plate. ## Claims ### Claim 1 A rechargeable battery, comprising: an electrode assembly in a case; a terminal which passes through and protrudes from a cap plate; and a current collector plate in the case and electrically connecting the electrode assembly and the terminal, wherein the current collector plate includes a bent area, a terminal area, and a fuse area between the bent area and the terminal area, the fuse area including a fuse hole without corners passing through the current collector plate, the fuse hole having a substantially elongated shape with round sides, and being elongated in a first direction of the current collector plate and perpendicular to a second direction of the current collector plate, the second direction being a direction between the bent area and the terminal area. ### Claim 2 (depends on 1) The battery as claimed in claim 1, wherein: each of the round sides has a radius substantially equal to or greater than half a length of the fuse hole in the second direction. ### Claim 3 A rechargeable battery, comprising: an electrode assembly in a case; a terminal passing through and protruding from a cap plate; and a current collector plate in the case and electrically connecting the electrode assembly and the terminal, wherein the current collector plate has a fuse area that includes a fuse hole without corners, the fuse hole passing through the current collector plate, the fuse hole being elongated in a first direction of the current collector plate, the first direction being a direction between side edges of the current collector plate. ### Claim 4 (depends on 3) The battery as claimed in claim 3, wherein the fuse hole has a substantially circular or oval shape elongated in the first direction of the current collector plate. ### Claim 5 (depends on 3) The rechargeable battery as claimed in claim 3, wherein: the fuse hole has a first side, a second side, a first round side, and a second round side, the first side faces the second side, the first side and the second side are substantially parallel to the first direction of the current collector plate, the first round side faces the second round side, and the first round side and the second round side are connected to ends of the first side and the second side. ### Claim 6 (depends on 5) The rechargeable battery as claimed in claim 5, wherein: each of the first round side and the second round side has a radius substantially half a length of the fuse hole in a second direction the second direction being orthogonal to the first direction. ### Claim 7 (depends on 5) The rechargeable battery as claimed in claim 5, wherein each of the first round side and the second round side has a substantially oval shape elongated in a first direction of the current collector plate. ### Claim 8 (depends on 7) The rechargeable battery as claimed in claim 7, wherein: a short-axis radius of each of the first round side and the second round side is substantially equal to half a length of the fuse hole in a second direction orthogonal to the first direction, and the length of the fuse hole in the second direction is a shortest distance between the first side and the second side. ### Claim 9 (depends on 8) The rechargeable battery as claimed in claim 8, wherein: a long axis radius of each of the first round side and the second round side is greater than half a length of the fuse hole in the second direction and is equal to or less than half a width of the fuse hole in the first direction. ### Claim 10 (depends on 9) The rechargeable battery as claimed in claim 9, wherein the long axis of each of the first round side and the second round side is substantially parallel to the width of the fuse hole in the first direction and a short axis is substantially parallel to the length of the fuse hole in the second direction. ### Claim 11 A current collector plate, comprising: a bent area; a terminal area; and a fuse area including a fuse hole without corners between the terminal area and the bent area, wherein the fuse hole has a width greater than a length and curved ends adjacent respective edges of the current collector plate, the width of the fuse hole corresponding to a distance between the curved ends. ### Claim 12 (depends on 11) The current collector plate as claimed in claim 11, wherein the curved ends are spaced from the edges of the current collector plate by substantially equal amounts. ### Claim 13 (depends on 11) The current collector plate as claimed in claim 11, wherein the fuse hole has a substantially oval shape. ### Claim 14 (depends on 11) The current collector plate as claimed in claim 11, wherein the fuse hole has a shape with substantially parallel sides between the curved ends. ### Claim 15 (depends on 11) The current collector plate as claimed in claim 11, wherein each of the curved ends corresponds to a circle having substantially a same radius. ### Claim 16 (depends on 15) The current collector plate as claimed in claim 15, wherein the radius is substantially equal to or greater than a predetermined fraction of a length of the fuse hole. ### Claim 17 (depends on 16) The current collector plate as claimed in claim 16, wherein the predetermined fraction is half.