# US 12,184,099 B2 · Methods and aparatuses for charging hybrid battery pack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,099 B2 - Document ID: US12184099B2 - Status: Granted - Kind: B2 - Application number: 17/402,875 - Filed: 2021-08-16 - Published: 2022-03-17 - Granted: 2024-12-31 - Earliest claimed: 2020-09-16 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Shashishekara Parampalli Adiga; Mohan Kumar Singh Verma; Ashish Khandelwal; Krishnan S Hariharan; Rajkumar Subhash Patil; Subramanya Mayya Kolake - Web page: https://patentgrep.com/patent/US12184099B2 ## CPC - H02J 7/485: {with provisions for charging different types of batteries} - H02J 7/52: for charge balancing, e.g. equalisation of charge between batteries - H02J 7/50: acting upon multiple batteries simultaneously or sequentially - H02J 7/82: Control of state of charge [SOC] - H02J 7/92: with prioritisation of loads or sources - H02J 7/933: {the cycle being controlled or terminated in response to electric parameters} - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract Disclosed are methods and apparatuses for charging a hybrid battery pack, the method including determining, by a battery management system (BMS), a current split ratio for allocating charging current to an energy cell and a power cell in a hybrid battery pack, based on any one or any combination of a state of charge (SoC) level of the energy cell at an instance of initiation of charging, a SoC level of the power cell at the instance of the initiation of the charging, a wattage of an adapter for charging the hybrid battery pack, a capacity of the hybrid battery pack, and a charging time period, and charging, by the BMS, the hybrid battery pack by allocating the charging current to the energy cell and the power cell based on the current split ratio. ## Claims ### Claim 1 A processor-implemented method of charging a hybrid battery pack, the method comprising: determining, by a battery management system (BMS), a current split ratio for allocating charging current to an energy cell and a power cell in a hybrid battery pack, based on any one or any combination of a state of charge (SoC) level of the energy cell at an instance of initiation of charging, a SoC level of the power cell at the instance of the initiation of the charging, a wattage of an adapter for charging the hybrid battery pack, a capacity of the hybrid battery pack, and a charging time period; and charging, by the BMS, the hybrid battery pack by allocating the charging current to the energy cell and the power cell based on the current split ratio, wherein the current split ratio is based on a plurality of plots representing variations of percentage of charging of the hybrid battery pack with respect to time for different current split ratios. ### Claim 2 (depends on 1) The method of claim 1, wherein the charging time period is determined based on at least one of: a user input specifying a time period available for charging; or any one or any combination of a usage pattern of a device hosting the BMS, a time of initiation of the charging, an urgency of a user at the time, and a user activity at the time. ### Claim 3 (depends on 1) The method of claim 1, wherein the variations are based on any one or any combination of the SoC level of the energy cell at the instance of the initiation of the charging, the SoC level of the power cell at the instance of the initiation of the charging, the wattage of the adapter, and the capacity of the hybrid battery pack. ### Claim 4 (depends on 3) The method of claim 3, further comprising: determining a plot from among the plurality of plots based on the SoC level of the energy cell at the instance of the initiation of the charging, the SoC level of the power cell at the instance of the initiation of the charging, the wattage of the adapter, and the capacity of the hybrid battery pack. ### Claim 5 (depends on 4) The method of claim 4, further comprising: selecting one of the current split ratios in the chosen plot as the current split ratio, wherein the charging current is allocated to the energy cell and the power cell in accordance with the selected current split ratio within the charging time period. ### Claim 6 (depends on 3) The method of claim 3, further comprising: determining correlations between charging time periods and current split ratios; and determining the current split ratio based on the correlations between the charging time periods and the current split ratios. ### Claim 7 A battery management system (BMS) comprising: a memory configured to store a plurality of plots; and a processor configured to determine a current split ratio for allocating charging current to an energy cell and a power cell in a hybrid battery pack, based on any one or any combination of a state of charge (SoC) level of the energy cell at an instance of initiation of charging, a SoC level of the power cell at the instance of the initiation of charging, a wattage of an adapter for charging the hybrid battery pack, a capacity of the hybrid battery pack, and a charging time period, and to charge the hybrid battery pack by allocating the charging current to the energy cell and the power cell in accordance with the current split ratio, wherein the processor is further configured to determine the current split ratio based on the plurality of plots representing variations of percentage of charging of the hybrid battery pack with respect to time, for different current split ratios. ### Claim 8 (depends on 7) The BMS of claim 7, wherein the processor is further configured to determine the charging time based on at least one of: a user input specifying a time period available for charging; or any one or any combination of a usage pattern of a device hosting the BMS, a time of initiation of the charging, an urgency of a user at the time, and a user activity at the time. ### Claim 9 (depends on 7) The BMS of claim 7, further comprising: wherein the variations are based on any one or any combination of the SoC level of the energy cell at the instance of the initiation of the charging, the SoC level of the power cell at the instance of the initiation of the charging, the wattage of the adapter, and the capacity of the hybrid battery pack. ### Claim 10 (depends on 9) The BMS of claim 9, wherein the processor is further configured to determine a plot from among the plurality of plots based on the SoC level of the energy cell at the instance of the initiation of the charging, the SoC level of the power cell at the instance of the initiation of the charging, the wattage of the adapter, and the capacity of the hybrid battery pack. ### Claim 11 (depends on 10) The BMS of claim 10, wherein the processor is further configured to select one of the current split ratios in the chosen plot as the current split ratio, and wherein the charging current is allocated to the energy cell and the power cell in accordance with the selected current split ratio within the charging time period. ### Claim 12 (depends on 9) The BMS of claim 9, wherein the processor is further configured to determine correlations between charging time periods and current split ratios, and to determine the current split ratio based on the correlations between the charging time periods and the current split ratios. ### Claim 13 A portable terminal for charging a hybrid battery pack, the portable terminal comprising: a hybrid battery pack comprising an energy cell and a power cell; a storage configured to store a plurality of plots; one or more processors configured to: choose a plot from among the plurality of plots, and to determine a current split ratio based on the plot; and charge the hybrid battery pack by allocating charging current to the energy cell and the power cell in accordance with the determined current split ratio, wherein the plurality of plots represent variations of percentage of charging of the hybrid battery pack with respect to time, for different current split ratios. ### Claim 14 (depends on 13) The portable terminal of claim 13, wherein the one or more processors are further configured to: verify a state of charge (SoC) level of the energy cell at an instance of initiation of charging, a SoC level of the power cell at the instance of the initiation of the charging, a wattage of an adapter for charging the hybrid battery pack, and a capacity of the hybrid battery pack; and determine a charging time period, and wherein, for the determining of the current split ratio, the one or more processors are configured to determine the current split ratio based on any one or any combination of the SoC level of the energy cell at the instance of the initiation of the charging, the SoC level of the power cell at the instance of the initiation of the charging, the wattage of the adapter, the capacity of the hybrid battery pack, and the charging time period. ### Claim 15 (depends on 14) The portable terminal of claim 14, wherein the one or more processors are further configured to: verify a usage pattern of the portable device by a user; determine an urgency of the user at the time of the initiation of the charging based on the usage pattern; and verify a user activity according to a movement of the portable device at the time of the initiation of the charging, wherein, for the determining of the charging time period, the one or more processors are further configured to determine the charging time period based on at least one of: a user input specifying a time period available for charging; or any one or any combination of the usage pattern of the portable terminal, the time of initiation of charging, the urgency of the user at the time instance of initiation of charging, and the user activity at the time. ### Claim 16 (depends on 14) The portable terminal of claim 14, wherein the variations are based on any one or any combination of the SoC level of the energy cell at the instance of the initiation of the charging, the SoC level of the power cell at the instance of the initiation of the charging, the wattage of the adapter, and the capacity of the hybrid battery pack. ### Claim 17 (depends on 14) The portable terminal of claim 14, wherein, for the determining of the current split ratio, the one or more processors are further configured to choose a plot from among the plurality of plots based on the SoC level of the energy cell at the instance of the initiation of the charging, the SoC level of the power cell at the instance of the initiation of the charging, the wattage of the adapter, and the capacity of the hybrid battery pack. ### Claim 18 (depends on 17) The portable terminal of claim 17, wherein, for the determining of the current split ratio, the one or more processors are further configured to select one of the current split ratios in the chosen plot as the current split ratio, wherein the charging current is allocated to the energy cell and the power cell in accordance with the selected current split ratio within the charging time period. ### Claim 19 (depends on 14) The portable terminal of claim 14, wherein, for the determining of the current split ratio, the one or more processors are further configured to: determine correlations between charging time periods and current split ratios; and determine the current split ratio based on the correlations between the charging time periods and the current split ratios. ### Claim 20 (depends on 14) The portable terminal of claim 14, wherein the energy cell has a higher capacity density and a lower power density than the power cell.