# US 10,374,446 B2 · Batter pack including carbon heater > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,446 B2 - Document ID: US10374446B2 - Status: Granted - Kind: B2 - Application number: 15/712,847 - Filed: 2017-09-22 - Published: 2018-03-29 - Granted: 2019-08-06 - Earliest claimed: 2016-09-23 - Assignees: LG Chem, Ltd. - Applicants: LG Chem, Ltd. - Inventors: Jong Min Lim; Sang Jin Ahn - Web page: https://patentgrep.com/patent/US10374446B2 ## CPC - H01M 10/653: characterised by electrically insulating or thermally conductive materials - H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries - H01M 10/486: {for measuring temperature} - H01M 10/613: Cooling or keeping cold - H01M 10/615: Heating or keeping warm - H01M 10/625: Vehicles - H01M 10/6551: Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings - H01M 50/211: adapted for pouch cells - H01M 50/262: with fastening means, e.g. locks - H01M 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames - H01M 50/267: having means for adapting to batteries or cells of different types or different sizes - H01M 50/293: characterised by the material - H02H 7/18: for batteries; for accumulators - H02J 7/663: {using battery or load disconnect circuits (H02J9/002 takes precedence)} - H02J 7/70: characterised by the mechanical construction - H02J 7/963: {in response to battery voltage gradient} - H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop - H02J 7/61: against overcharge - H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] - Y02E 60/10: Energy storage using batteries - 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 - H02H: EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS (indicating or signalling undesired working conditions G01R, e.g. G01R31/00, G08B; locating faults along lines G01R31/08; emergency protective devices H01H) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract The present disclosure provides a battery pack including a battery cell array in which a plurality of battery cells are arranged in a state in which side surfaces thereof face each other, a heater disposed between the battery cells, a battery management system (BMS) configured to control an operation of the battery cells, and a temperature sensor configured to measure a temperature of the battery cells to transmit the measured temperature to the BMS. Here, when the temperature of the battery cells, which is measured from the temperature sensor, is equal to or less than a critical temperature, the BMS provides a current to the heater to increase the temperature of the battery cells. ## Claims ### Claim 1 A battery pack, comprising: a battery cell array in which a plurality of battery cells are arranged such that side surfaces thereof face each other; a heater disposed between two of the battery cells, the heater directly contacting one of the two battery cells, the heater being attached to the other of the two battery cells with a double-sided tape; a battery management system (BMS) configured to control an operation of the battery cells; and a temperature sensor configured to measure a temperature of the battery cells to transmit the measured temperature to the BMS, wherein, when the temperature of the battery cells, which is measured from the temperature sensor, is equal to or less than a critical temperature, the BMS provides a current to the heater to increase the temperature of the battery cells. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein the heater comprises a carbon heating film. ### Claim 3 (depends on 2) The battery pack of claim 2, wherein the carbon heating film comprises: a composite film comprising a sheet shape; and strip-type conductive terminals provided on both ends of the composite film in a width direction of the sheet. ### Claim 4 (depends on 3) The battery pack of claim 3, wherein the carbon heating film emits heat due to resistance heat of the composite film when a current is applied to the conductive terminals. ### Claim 5 (depends on 3) The battery pack of claim 3, wherein terminal recessed portions, at which the conductive terminals are positioned, are defined in one surface adjacent to both ends of the composite film in the width direction of the sheet. ### Claim 6 (depends on 3) The battery pack of claim 3, wherein the strip-type conductive terminals are applied on the both ends of the composite film in the width direction of the sheet. ### Claim 7 (depends on 1) The battery pack of claim 1, wherein the heater has a thickness of 50 μm to 100 μm. ### Claim 8 (depends on 1) The battery pack of claim 1, wherein the critical temperature is set in a range of −40° C. to 0° C. ### Claim 9 A battery pack, comprising: a base plate; at least one module accommodation portion on the base plate; a plurality of battery modules mounted in the at least one module accommodation portion; at least one battery module assembly comprising a plurality of battery modules that are arranged adjacent to each other and mounted to the at least one module accommodation portion; an assembly cooling member disposed between a lower portion of the battery module assembly and the base plate and through which a refrigerant flows horizontally to the ground to cool the battery modules configuring the battery module assembly; at least one heater mounted to a portion of an outer surface of the assembly cooling member; a battery management system (BMS) mounted to an upper end of the battery module assembly to control an operation of the battery modules; and a temperature sensor configured to measure a temperature of the battery modules to transmit the measured temperature to the BMS, wherein, when the temperature of the battery cells, which is measured from the temperature sensor, is equal to or less than a critical temperature, the BMS provides a current to the heater to increase the temperature of the assembly cooling member. ### Claim 10 (depends on 9) The battery pack of claim 9, wherein the heater is mounted to an upper outer surface of the assembly cooling member in a portion that is not in contact with the battery modules. ### Claim 11 (depends on 9) The battery pack of claim 9, wherein the assembly cooling member comprises: a heat transfer plate mounted to a lower end of the battery modules configuring the battery module assembly; and an assembly cooling plate mounted to a bottom surface of the heat transfer plate in a thermal contact state and having a hollow structure or a refrigerant pipe, through which the refrigerant flows. ### Claim 12 (depends on 9) The battery pack of claim 9, wherein: the battery module comprises: two or more battery cells of which the same surfaces are stacked and arranged in the same direction as each other; frame members surrounding outer circumferential sides of the battery cells, respectively; and cooling members each having a plate shape and respectively facing to contact the battery cells; one battery cell is mounted to one side of one frame member; and one cooling member is mounted to the other side of the one frame member to configure a unit module. ### Claim 13 (depends on 12) The battery pack of claim 12, wherein, in the frame member, a locking part for being coupled to the frame member of the adjacent unit module is provided on at least one outer circumferential side from among the rest of the outer circumferential sides, except for the outer circumferential side corresponding to an electrode terminal of the battery cell. ### Claim 14 (depends on 13) The battery pack of claim 13, wherein the locking part comprises: a first coupling portion protruding in a direction in which the battery cells are stacked to be coupled to the frame member of the adjacent unit module by a hook structure; and a second coupling portion that is a recessed groove having a shape corresponding to the first coupling portion so that the first coupling portion of the frame member of another adjacent unit module is inserted and coupled thereto. ### Claim 15 (depends on 12) The battery pack of claim 12, wherein the frame member comprises an extended locking portion having a shape protruding outward from at least one corner to intensify locking with other frame members. ### Claim 16 (depends on 15) The battery pack of claim 15, wherein: an extended locking hole is perforated in the extended coupling portion; and an extended locking tool is inserted into the extended locking portions of the frame members to couple the frame members to each other. ### Claim 17 (depends on 9) The battery pack of claim 9, wherein the heater comprises a carbon heating film. ### Claim 18 (depends on 17) The battery pack of claim 17, wherein the carbon heating film comprises: a composite film comprising a sheet shape; and strip-type conductive terminals provided on both ends of the composite film in a width direction of the sheet. ### Claim 19 (depends on 9) The battery pack of claim 9, wherein the critical temperature is set in a range of −40° C. to 0° C.