# US 8,119,282 B2 · Pole bridge for a battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,119,282 B2 - Document ID: US8119282B2 - Status: Granted - Kind: B2 - Application number: 11/917,715 - Filed: 2006-06-08 - Published: 2009-11-19 - Granted: 2012-02-21 - Earliest claimed: 2005-06-16 - Assignees: Exide Technologies - Inventors: Nils Hansson; Detlef Rathmann; Bjørn Haraldsen - Web page: https://patentgrep.com/patent/US8119282B2 ## CPC - H01M 10/0413: {Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes} - H01M 50/147: Lids or covers - H01M 50/174: adapted for the shape of the cells - H01M 50/184: characterised by their shape or structure - H01M 50/188: the sealing members being arranged between the lid and terminal - H01M 50/528: Fixed electrical connections, i.e. not intended for disconnection - H01M 50/533: characterised by the shape of the leads or tabs - H01M 50/54: Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges - 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 - 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 The invention relates to a cell connector (6) for a battery, especially for absorbing, in conjunction with at least one damping element (9), the vertical forces that are caused by the impact of shocks. The cell connector (6), at one end, is connected to the positive or negative electrodes (4, 5) which are received in a housing (2) having a housing cover (3), and, at the other end, comprises at least one terminal (7, 8) projecting from the housing cover (3). The aim of the invention is to elastically dampen the electrode plates (4, 5) of an accumulator (1) which are disposed inside a housing (2). For this purpose, a terminal (6) having a supporting shoulder (11), integrally molded thereto, is used in the housing (2), a damping element (9), disposed between the housing cover (3) of an accumulator (1) and the cell connector (6), coming to rest thereon. The forces caused by the impact of shocks are passed from the cell connector (6) into the damping element (9) and from the at least one damping element (6) into the housing cover (3) via large-area plane faces (30, 31), said cover being fixed to the housing (2). This measure allows to elastically cushion the electrode plates (4, 5) inside the housing (2). For this purpose, the at least one damping element (9) has corresponding large dimensions and is adapted to receive higher vertical forces. The invention also allows the terminals (7, 8) to move in relation to the housing cover (3) if there is a movement of the electrode plates (4, 5) in relation to the housing (2). ## Claims ### Claim 1 A pole bridge for a battery comprising at least one damping element for absorbing vertical forces through deformation of the at least one damping element caused by impacts of shocks, wherein the pole bridge, at one end, is connected to positive or negative electrodes, which are received in a cell container having a cell lid, and at the other end, including at least one terminal, projecting from the cell lid, wherein the at least one terminal has a supporting shoulder, integrally molded thereto, within the cell container, and wherein the at least one damping element is formed so that it is supported at the supporting shoulder with a smaller planar face and with a larger planar face below an inner lid of the battery. ### Claim 2 (depends on 1) A pole bridge according to claim 1, wherein the at least one damping element is provided, so it is slideable onto the terminal. ### Claim 3 (depends on 2) A pole bridge according to claim 2, wherein the support shoulder is sized with a planar large surface and the at least one damping element is supported with an approximately equal size planar face at the support shoulder. ### Claim 4 (depends on 1) A pole bridge according to claim 1, wherein the at least one damping element is round, oval, square or polygonal and includes at least one such support surface. ### Claim 5 (depends on 4) A pole bridge according to claim 4, wherein the at least one damping element is provided conically tapered downward, in a direction towards the pole bridge. ### Claim 6 (depends on 4) A pole bridge according to claim 4 wherein the at least one damping element includes an elastic natural rubber material, which includes the required form stability and converts occurring pressure forces into thermal energy. ### Claim 7 (depends on 4) A pole bridge according to claim 4, wherein the upper support surface of the at least one damping element includes recess, into which a protrusion of the cell lid protrudes, the cell lid has an inner cell lid that includes rubber. ### Claim 8 (depends on 4) A pole bridge according to claim 4, wherein between the support shoulder and the at least one damping element, a seal element is disposed. ### Claim 9 (depends on 4) A pole bridge according to claim 4, at wherein the support shoulder includes a recess for a seal element between support shoulder and the at least one damping element within a lead jacket. ### Claim 10 (depends on 4) A pole bridge according to claim 4, wherein the parallel planar faces of the at least one damping element are at least partially lubricated with silicon grease. ### Claim 11 (depends on 4) A pole bridge according to claim 4, wherein the at least one damping element has a height of 40 to 80 mm. ### Claim 12 (depends on 4) A pole bridge according to claim 4, wherein the at least one damping element includes a first support surface with an area of 3,000 to 4,000 mm2, and a second support surface with an area of 5,000 to 7,000 mm2. ### Claim 13 (depends on 4) A pole bridge according to claim 4, wherein the cell lid comprises a recess on its outside for a seal ring, which is disposed in disk shape in the recess, and through which the terminal protrudes to the outside, wherein a metal disk rests on the seal ring, and is clamped by means of the safety pins, which are disposed in the provided recesses of the terminal. ### Claim 14 (depends on 4) A pole bridge element according to claim 4, wherein a seal ring is provided as a second seal element, which has height of 25 to 40 mm. ### Claim 15 (depends on 14) A pole bridge according to claim 14, wherein a second damping element is slid onto the terminal from above. ### Claim 16 (depends on 14) A pole bridge according to claim 14, wherein the seal ring includes a diameter of 50 to 70 mm. ### Claim 17 (depends on 4) A pole bridge according to claim 4, wherein the terminal includes copper. ### Claim 18 (depends on 4) A pole bridge at least one damping element according to claim 4, wherein the pole bridge and, in particular, a portion of the support shoulder is clad with lead. ### Claim 19 (depends on 4) A pole bridge according to claim 4, wherein the terminal is at least partially clad with lead. ### Claim 20 (depends on 4) A pole bridge according to claim 4, wherein the terminal is clad with lead up to the elevation of the lid.