# US 2013/0153185 A1 · Battery cell design and method of cooling battery cells > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153185 A1 - Document ID: US20130153185A1 - Status: Published application - Kind: A1 - Application number: 13/767,048 - Filed: 2013-02-14 - Published: 2013-06-20 - Earliest claimed: 2011-05-27 - Assignees: General Electric Company - Inventors: Badri Narayan Ramamurthi; Satoshi Atsuchi; Andrey I. Meshkov; Mohamed Rahmane; Svetlana Selezneva - Web page: https://patentgrep.com/patent/US20130153185A1 ## CPC - H01M 10/613: Cooling or keeping cold - H01M 4/765: {Tubular type or pencil type electrodes; tubular or multitubular sheaths or covers of insulating material for said tubular-type electrodes} - H01M 10/3909: {Sodium-sulfur cells} - H01M 10/399: {Cells with molten salts} - H01M 10/654: located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes - H01M 10/6561: Gases - 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 The battery cell design includes a battery cell component comprises a current conducting element, that includes at least a portion that is hollow, further component is configured to be located within a battery cell. Another embodiment of the component comprises a first element that defines a first fluid path therein; and a second element that defines a second fluid path, wherein the two fluid paths are in communication with each other, further wherein the battery cell component is configured to conduct electric current. A battery cell and battery cell assembly that uses the component, and a method of cooling a battery assembly is also disclosed. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims. ## Claims ### Claim 1 A battery cell component comprising: a first element defining a first fluid path therein; and a second element, defining a second fluid path, wherein the second fluid path is in fluid communication with the first fluid path, further wherein the battery cell component is configured to conduct electric current. ### Claim 2 (depends on 1) The battery cell component of claim 1, wherein the first element and the second element are substantially longitudinal. ### Claim 3 (depends on 1) The battery cell component of claim 1, wherein the first element and the second element are substantially concentric. ### Claim 4 (depends on 1) The battery cell component of claim 1, wherein at least one of the first element and the second element are substantially helical. ### Claim 5 (depends on 1) The battery cell component of claim 1, wherein an outer surface of the first element and the second element comprises one of a metal and an alloy. ### Claim 6 (depends on 1) The battery cell component of claim 1, wherein the battery cell component is configured for use in a sodium-based battery cell. ### Claim 7 (depends on 1) The battery cell component of claim 1, wherein a fluid in the first fluid path and the second fluid path comprises one of a gas, a liquid, and combinations thereof. ### Claim 8 (depends on 7) The battery cell component of claim 7, wherein the gas comprises air. ### Claim 9 (depends on 1) A battery cell comprising: a case housing containing: a cathode; an anode surrounding the cathode; and the battery cell component of claim 1, wherein the battery cell component is located within the cathode. ### Claim 10 A battery pack assembly comprising: a plurality of battery cells in electrical communication, wherein each of the plurality of battery cells comprise: an anode; a cathode in communication with the anode; and a current collector, wherein a portion of the current collector is hollow, thereby defining a fluid path therein; and a cooling system in fluid communication with the fluid path, the cooling system comprising at least one fluid channel. ### Claim 11 (depends on 10) The battery pack assembly of claim 10, the cooling system further comprising a pump configured to pump a fluid through one of the fluid path and the at least one fluid channel. ### Claim 12 (depends on 10) The battery pack assembly of claim 10, wherein a fluid in the fluid path and the at least one fluid channel comprises one of a liquid, a gas, and combinations thereof. ### Claim 13 (depends on 10) The battery pack assembly of claim 10, wherein the gas comprises air. ### Claim 14 (depends on 10) The battery pack assembly of claim 10, wherein the plurality of battery cells comprise sodium-based battery cells. ### Claim 15 (depends on 10) The battery pack assembly of claim 10, wherein the at least one fluid channel and the fluid path comprises a closed loop system. ### Claim 16 (depends on 15) The battery pack assembly of claim 15, the cooling system further comprising a heat exchanger configured to release heat from the fluid. ### Claim 17 (depends on 10) The battery pack assembly of claim 10, wherein the at least one fluid channel and the fluid path comprises an open loop system. ### Claim 18 A method of cooling comprising: connecting a cooling system to a battery pack assembly, said battery pack assembly comprising a plurality of battery cells electrically connected to each other, the cooling system comprising at least one fluid channel containing a fluid therein, the at least one fluid channel being in thermal communication with the plurality of battery cells; circulating a fluid in the least one fluid channel, thereby controlling a temperature of the plurality of battery cells. ### Claim 19 (depends on 18) The method of claim 18, the plurality of battery cells each comprise a current collector, wherein a portion of the current collector is hollow, thereby defining a fluid path therein; the at least one fluid channel in fluidic communication with the fluid path. ### Claim 20 (depends on 18) The method of claim 18, the plurality of battery cells comprising sodium-based battery cells.