# US 2014/0193696 A1 · Secondary battery and secondary battery module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0193696 A1 - Document ID: US20140193696A1 - Status: Published application - Kind: A1 - Application number: 13/804,968 - Filed: 2013-03-14 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Assignees: Robert Bosch GmbH; Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd.; Robert Bosch Gmhh - Inventors: Dukjung Kim - Web page: https://patentgrep.com/patent/US20140193696A1 ## CPC - H01M 50/176: for prismatic or rectangular cells (H01M50/181 takes precedence) - H01M 50/103: prismatic or rectangular (H01M50/109, H01M50/11 take precedence) - H01M 50/533: characterised by the shape of the leads or tabs - H01M 50/534: characterised by the material of the leads or tabs - H01M 50/55: on the same side of the cell - H01M 50/553: Terminals adapted for prismatic, pouch or rectangular cells - H01M 50/562: characterised by the material - H01M 10/00: Secondary cells; Manufacture thereof - H01M 10/04: Construction or manufacture in general (H01M10/058, H01M10/12, H01M10/28, H01M10/38 take precedence) - H01M 10/052: Li-accumulators - H01M 50/50: Current conducting connections for cells or batteries - H01M 50/503: characterised by the shape of the interconnectors - H01M 50/51: Connection only in series - H01M 50/538: Connection of several leads or tabs of wound or folded electrode stacks - H01M 50/571: Methods or arrangements for affording protection against corrosion; Selection of materials therefor - 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 secondary battery is provided including an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a case containing the electrode assembly; a first current collector electrically connected to the first electrode plate; a first terminal electrically connected to the first current collector; a second current collector electrically connected to the second electrode plate; and a second terminal electrically connected to the second current collector, wherein a plating is on a portion of at least one of the first terminal or the first current collector at which the first terminal contacts the first current collector. ## Claims ### Claim 1 A secondary battery comprising: an electrode assembly comprising a first electrode plate, a second electrode plate, and a separator; a case containing the electrode assembly; a first current collector electrically connected to the first electrode plate; a first terminal electrically connected to the first current collector; a second current collector electrically connected to the second electrode plate; and a second terminal electrically connected to the second current collector, wherein a plating is on a portion of at least one of the first terminal or the first current collector at which the first terminal contacts the first current collector. ### Claim 2 (depends on 1) The secondary battery of claim 1, wherein the first current collector comprises copper, the first terminal comprises aluminum, and the plating comprises at least one of tin, nickel, or zinc. ### Claim 3 (depends on 1) The secondary battery of claim 1, wherein the first current collector has a first opening; and the first terminal comprises a first terminal plate having a second opening and located outside of the case, and a first terminal pin having a first side and a second side, the first side fitted into the first opening, and the second side fitted into the second opening. ### Claim 4 (depends on 3) The secondary battery of claim 3, wherein the first side of the first terminal pin has a riveted portion around the first opening, and the second side of the first terminal pin has a riveted portion around the second opening. ### Claim 5 (depends on 3) The secondary battery of claim 3, wherein the first terminal pin has one or more cavities having a depth along a central axis of the first terminal pin in at least one of the first side or the second side, and a first blocking part blocking a communication between the first side and the second side through the first terminal pin. ### Claim 6 (depends on 3) The secondary battery of claim 3, wherein the plating is on the first terminal pin and a portion of the first current collector adjacent to the first opening. ### Claim 7 (depends on 1) The secondary battery of claim 1, wherein the first current collector comprises a first connection plate electrically connected to the first electrode plate, a first extension plate extending from the first connection plate and having a first opening, and a first terminal pin having a first side and a second side, the first side being fitted into the first opening; and the first terminal comprises a first terminal plate having a second opening into which the second side of the first terminal pin is fitted, and the first terminal plate located outside of the case. ### Claim 8 (depends on 7) The secondary battery of claim 7, wherein the first side of the first terminal pin has a riveted portion around the first opening, and the second side of the first terminal pin has a riveted portion around the second opening. ### Claim 9 (depends on 7) The secondary battery of claim 7, wherein the first terminal pin has one or more cavities having a depth along a central axis of the first terminal pin in at least one of the first side or the second side, and a first blocking part blocking a communication between the first side and the second side through the first terminal pin. ### Claim 10 (depends on 7) The secondary battery of claim 7, wherein the plating is on the first terminal pin and the first terminal plate. ### Claim 11 A secondary battery module comprising: a plurality of secondary batteries each comprising an electrode assembly, a case containing the electrode assembly, a current collector electrically connected to the electrode assembly, and a terminal electrically connected to the current collector; and a plurality of connection members electrically connecting terminals of neighboring ones of the plurality of secondary batteries, wherein a first plating is on a portion of at least one of each terminal or each of the connection members at which the terminal contacts a corresponding one of the connection members. ### Claim 12 (depends on 11) The secondary battery module of claim 11, wherein the electrode assembly comprises a first electrode plate, a second electrode plate, and a separator; the current collector comprises a first current collector electrically connected to the first electrode plate, and a second current collector electrically connected to the second electrode plate; the terminal comprises a first terminal electrically connected to the first current collector, and a second terminal electrically connected to the second current collector; and a second plating is on at least a portion of the first current collector or the first terminal at which the first current collector contacts the first terminal. ### Claim 13 (depends on 11) The secondary battery module of claim 11, wherein each of the plurality of connection members and the first current collector comprise copper, the first terminal comprises aluminum, and each of the first plating and the second plating comprises at least one of tin, nickel, or zinc.