# US 2014/0197794 A1 · Battery pack including different kinds of cells and power device including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0197794 A1 - Document ID: US20140197794A1 - Status: Published application - Kind: A1 - Application number: 14/011,746 - Filed: 2013-08-27 - Published: 2014-07-17 - Earliest claimed: 2013-01-16 - Assignees: Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd. - Inventors: Jae-Sung Gu; Eui-Hwan Song; Seok-Gyun Woo - Web page: https://patentgrep.com/patent/US20140197794A1 ## CPC - H02J 7/485: {with provisions for charging different types of batteries} - H01M 10/04: Construction or manufacture in general (H01M10/058, H01M10/12, H01M10/28, H01M10/38 take precedence) - H01M 10/441: {for several batteries or cells simultaneously or sequentially} - H01M 10/482: {for several batteries or cells simultaneously or sequentially} - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/267: having means for adapting to batteries or cells of different types or different sizes - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - H02J 7/50: acting upon multiple batteries simultaneously or sequentially - H02J 7/80: including monitoring or indicating arrangements - B60L 58/20: having different nominal voltages - H01M 50/569: Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364) - H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing} - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - 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 - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract There is provided a battery pack including a mixed cell and a power device including the same. The mixed cell may include a first cell and a second cell having different electrical characteristics. The electrical characteristics may include at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity. ## Claims ### Claim 1 A battery pack, comprising: a mixed cell comprising a first cell and a second cell, the second cell having a different electrical characteristic from that of the first cell and being coupled to the first cell in parallel, wherein the electrical characteristic comprises at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein the internal resistance comprises the internal resistance when charging and the internal resistance when discharging. ### Claim 3 (depends on 2) The battery pack of claim 2, wherein a difference between the internal resistance of the first cell and the internal resistance of the second cell is from about 0.5 mΩ to about 1 mΩ. ### Claim 4 (depends on 1) The battery pack of claim 1, wherein a difference between the operation voltage of the first cell and the operation voltage of the second cell is from about 0.3V to about 1.5V. ### Claim 5 (depends on 1) The battery pack of claim 1, wherein the battery pack comprises a plurality of mixed cells, which comprise the mixed cell, serially coupled to each other. ### Claim 6 A battery pack, comprising: a first sub-battery pack comprising a plurality of first cells; and a second sub-battery pack comprising a plurality of second cells, the second sub-battery pack being coupled to the first sub-battery pack in parallel, wherein an electrical characteristic of the first cell is different from that of the second cell, and wherein the electrical characteristic comprises at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity. ### Claim 7 (depends on 6) The battery pack of claim 6, wherein the internal resistance comprises the internal resistance when charging and the internal resistance when discharging. ### Claim 8 (depends on 7) The battery pack of claim 7, wherein a difference between the internal resistance of the first cell and the internal resistance of the second cell is from about 0.5 mΩ to about 1 mΩ. ### Claim 9 (depends on 6) The battery pack of claim 6, wherein a difference between the operation voltage of the first cell and the operation voltage of the second cell is from about 0.3V to about 1.5V. ### Claim 10 A power device, comprising: a first battery pack; a second battery pack; a power converter coupled between the first battery pack and the second battery pack; and a charge device for converting energy supplied from outside the power device to supply a power to the power converter, wherein the power converter is configured to supply the power supplied from the charge device to at least one of the first battery pack or the second battery pack, wherein at least one of the first battery pack or the second battery pack comprises a plurality of mixed cells comprising first cells and second cells, the second cells having a different electrical characteristic from that of the first cells and being coupled to the first cells in parallel, and wherein the electrical characteristic comprises at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity. ### Claim 11 A power device, comprising: a first battery pack; a second battery pack; a power converter coupled between the first battery pack and the second battery pack; and a charge device for converting energy supplied from outside the power device to supply a power to the power converter, wherein the power converter supplies the power supplied from the charge device to at least one of the first battery pack or the second battery pack, wherein at least one of the first battery pack or the second battery pack comprises: a first sub-battery pack comprising a plurality of first cells; and a second sub-battery pack comprising a plurality of second cells and coupled to the first sub-battery pack in parallel, wherein an electrical characteristic of the first cells is different from that of the second cells, and wherein the electrical characteristic comprises at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity. ### Claim 12 A power device, comprising: a charge device for converting energy supplied from outside the power device to supply a power to a power converter; and a battery pack configured to be charged by the power supplied by the charge device, wherein the battery pack comprises a plurality of mixed cells each comprising first cells and second cells, the second cells having a different electrical characteristic from that of the first cells and being coupled to the first cells in parallel, and wherein the electrical characteristic comprises at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity. ### Claim 13 A power device, comprising: a charge device for converting energy supplied from outside the power device to supply power to a power converter; and a battery pack configured to be charged by the power supplied by the charge device, wherein the battery pack comprises: a first sub-battery pack comprising a plurality of first cells; and a second sub-battery pack comprising a plurality of second cells and coupled to the first sub-battery pack in parallel, wherein an electrical characteristic of the first cells is different from that of the second cells, and wherein the electrical characteristic comprises at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity.