Device and method for adjusting full charge capacity information about battery

Abstract

An electronic device according to an embodiment may comprise: a battery; a load; a communication module for establishing communication with an external device; a processor; and a memory for storing instructions. The instructions, when executed by the processor, may cause the electronic device to: supply a current to the load on the basis of the battery being fully charged; determine the value of the internal resistance of the battery on the basis of the current and a voltage, measured after the current is supplied to the load of the battery; adjust full charge capacity information about the battery on the basis of a comparison between the determined value of the internal resistance and a threshold resistance value; and share, with the external device, state of charge (SOC) information about the battery determined on the basis of the adjusted full charge capacity information.

Description

Method and device for adjusting the full charge capacity information of a battery

[0001] Hereinafter, a technology for adjusting the full charge capacity information of a battery is disclosed.

[0002] With the recent development of digital technology, various types of electronic devices such as mobile communication terminals, smart phones, tablet PCs (personal computers), notebooks, personal digital assistants (PDAs), wearable devices, digital cameras, or personal computers are being widely used.

[0003] Electronic devices often incorporate batteries with electrical properties such as high energy density and high applicability across product categories. Batteries can alternate between charging and discharging, and electronic devices need to efficiently control these charging and discharging processes to maintain optimal operating conditions and performance.

[0004] An electronic device according to one embodiment may include a battery having an internal resistance, a load electrically connected to the battery, a communication circuit for establishing communication with an external device, at least one processor including a processing circuit, and a memory including one or more storage media for storing instructions and a threshold resistance value. The instructions, when executed by the at least one processor, may cause the electronic device to supply current to the load based on the battery being fully charged, determine a resistance value of an internal resistance of the battery based on a magnitude of a voltage of the battery measured while supplying current to the load and a magnitude of the current, adjust full charge capacity information of the battery based on a comparison between the determined resistance value of the internal resistance and the threshold resistance value, and share state of charge information (SOC information) of the battery determined based on the adjusted full charge capacity information with the external device.

[0005] An electronic device according to one embodiment may include a communication circuit for establishing communication with an external device including a battery, a display, at least one processor including a processing circuit, and a memory including one or more storage media for storing instructions. The instructions, when executed by the at least one processor, may cause the electronic device to obtain, from the external device, charge state information of the battery determined using adjusted charge state information based on the adjusted charge state information of the battery, and to display a screen based on the obtained charge state information.

[0006] A method performed by an electronic device according to one embodiment may include an operation of supplying current to a load electrically connected to the battery based on the battery being fully charged, an operation of determining a resistance value of an internal resistance of the battery based on a magnitude of a voltage of the battery measured while supplying current to the load and a magnitude of the current, an operation of adjusting full charge capacity information of the battery based on a comparison between the determined resistance value of the internal resistance and a threshold resistance value, and an operation of sharing state of charge information (SOC information) of the battery determined based on the adjusted full charge capacity information with an external device.

[0007] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0008] FIG. 2 is a block diagram of a power management module and a battery according to various embodiments.

[0009] FIG. 3 is a diagram schematically illustrating a configuration related to battery control in an electronic device according to various embodiments of the present invention.

[0010] FIG. 4 is a flowchart illustrating an example of a method performed by an electronic device according to various embodiments.

[0011] FIG. 5 is a graph illustrating changes in charging current during a charging operation of a battery according to various embodiments.

[0012] FIG. 6 is a flowchart illustrating an example of an operation of a first electronic device changing a threshold resistance value according to various embodiments.

[0013] FIG. 7 is a diagram illustrating an example of an operation in which a second electronic device, having received information about a battery of a first electronic device from a first electronic device according to various embodiments, displays a screen based on the received information.

[0014] FIG. 8 is a flowchart illustrating an example of a method by which a first electronic device controls a charging operation of a battery according to various embodiments.

[0015] FIG. 9 is a flowchart illustrating an example of a method for determining current magnitude information regarding current supplied to a load by a first electronic device according to various embodiments.

[0016] Hereinafter, embodiments will be described in detail with reference to the attached drawings. In the description with reference to the attached drawings, identical components are assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted.

[0017] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0018] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0019] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor)) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0020] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0021] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0022] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0023] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0024] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0025] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0026] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0027] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0028] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0029] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0030] A haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0031] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0032] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0033] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0034] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0035] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0036] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas by, for example, the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0037] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0038] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0039] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104) or the server (108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0040] FIG. 2 is a block diagram of a power management module and a battery according to various embodiments.

[0041] An electronic device (200) according to one embodiment (e.g., electronic device (101) of FIG. 1) may include a power management module (288) (e.g., power management module (188) of FIG. 1) and a battery (289) (e.g., battery (189) of FIG. 1).

[0042] The power management module (288) may include a charging circuit (210), a power regulator (220), or a power gauge (230). The charging circuit (210) may charge the battery (289) using power supplied from an external power source for the electronic device (200). According to one embodiment, the charging circuit (210) may select a charging method (e.g., normal charging or fast charging) based on at least some of the type of the external power source (e.g., power adapter, USB, or wireless charging), the amount of power that can be supplied from the external power source (e.g., about 20 watts or more), or the properties of the battery (289). The charging circuit (210) may charge the battery (289) using the selected charging method. The external power source may be connected to the electronic device (200) by a wired connection, for example, through a connection terminal (e.g., connection terminal 178 of FIG. 1), or may be connected wirelessly through an antenna module (e.g., antenna module 197 of FIG. 1).

[0043] The power regulator (220) can generate a plurality of powers having different voltages or different current levels by adjusting the voltage level or current level of the power supplied from, for example, an external power source or a battery (289). The power regulator (220) can adjust the power of the external power source or the battery (289) to a voltage or current level suitable for each of the components included in the electronic device (200). According to one embodiment, the power regulator (220) can be implemented in the form of an LDO (low drop out) regulator or a switching regulator. The power gauge (230) can measure usage status information for the battery (289) (e.g., capacity, number of charge / discharge cycles, voltage, or temperature of the battery (289).

[0044] The power management module (288) can determine charging state information (e.g., lifespan, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheat, short circuit, or swelling) related to charging of the battery (289) based at least in part on measured usage state information, for example, using the charging circuit (210), the voltage regulator (220), or the power gauge (230). The power management module (288) can determine whether the battery (289) is normal or abnormal based at least in part on the determined charging state information. If the state of the battery (289) is determined to be abnormal, the power management module (288) can adjust charging of the battery (289) (e.g., reducing the charging current and / or the charging voltage, or stopping charging). According to one embodiment, at least some of the functions of the power management module (288) may be performed by a control device other than the power management module (288), such as the processor (120) of FIG. 1.

[0045] The battery (289) may, according to one embodiment, include a battery protection circuit module (PCM) (240). The battery protection circuit (240) may perform one or more of various functions (e.g., a pre-cut function) to prevent performance degradation or damage to the battery (289). The battery protection circuit (240) may additionally or alternatively be configured as at least a part of a battery management system (BMS) that may perform various functions including cell balancing, capacity measurement of the battery, charge / discharge cycle measurement, temperature measurement, or voltage measurement.

[0046] According to one embodiment, at least a portion of the usage status information or the charging status information of the battery (289) may be measured using a corresponding sensor (e.g., a temperature sensor) among the sensor modules (276), a power gauge (230), or a power management module (288). According to one embodiment, a corresponding sensor (e.g., a temperature sensor) among the sensor modules (e.g., the sensor module (176) of FIG. 1) may be included as part of the battery protection circuit (240) or may be placed near the battery (289) as a separate device.

[0047] FIG. 3 is a diagram schematically illustrating a configuration related to battery control in an electronic device according to various embodiments of the present invention.

[0048] Referring to FIG. 3, an electronic device (300) (e.g., an electronic device (101) of FIG. 1) according to various embodiments may include, for example, a processor (360) (e.g., an application processor (AP); a processor (120) of FIG. 1), a battery management module (320) (e.g., a power management module (188) of FIG. 1, a power management module (288) of FIG. 2), a battery (310) (e.g., a battery (189) of FIG. 1, a battery (289) of FIG. 2), and a load (380). According to various embodiments, the electronic device (300) may be connected by wire or wirelessly to a power supply device (390) for supplying power from the outside of the electronic device (300). In FIG. 3, the power supply device (390) is not a component included in the electronic device (300), and may be illustrated to help understanding of the invention.

[0049] The electronic device (300) may include a rechargeable battery (310), and the battery (310) may be charged by directly receiving output power from a power supply device (390) that supplies power. According to various embodiments, the battery (310) of the electronic device (300) may also be charged through a separate charging device (e.g., a battery charging dock or a cradle, etc.).

[0050] The power supply unit (390) may include, for example, a travel adapter (TA) or a power supply. In various embodiments, the power supply unit (390) may be integrated with the charging device, or may be implemented as a separate device (e.g., a charger) and connected to the charging device. Hereinafter, the power supply unit (390) will be described as including the role of the charging device.

[0051] The power supply unit (390) may be a unit that supplies power (e.g., voltage and current) to the electronic device (300) to charge the battery (310) of the electronic device (300). The power supply unit (390) may provide voltage or current of various levels. According to various embodiments, the power supply unit (390) may output a reference voltage or a voltage higher than the reference voltage (hereinafter also referred to as “high voltage”). According to various embodiments, the electronic device (300) may receive output power (e.g., reference voltage, high voltage) provided from the power supply unit (390) and charge the battery (310) in response to the applied output power.

[0052] The power supply (390) may include a wired power supply or a wireless power supply. According to various embodiments, when the power supply (390) is a wired power supply, the power supply (390) may be connected to the electronic device (300) via a wired interface (e.g., interface (177) of FIG. 1) within the electronic device (300). According to various embodiments, when the power supply (390) is a wireless power supply, the power supply (390) may be connected to the electronic device (300) via a wireless interface (e.g., a coil).

[0053] When connected to an electronic device (300), the power supply (390) provides information on various levels of voltage (or current) that can be provided by the power supply (390) to the electronic device (300), and can supply current to the electronic device (300). The power supply (390) may be a general power supply or a high-speed power supply, depending on the embodiment. For example, a general power supply may supply power at a first voltage (e.g., 5 V / 500 mA). In addition, a high-speed power supply is a device that provides a charging speed faster than the charging speed supplied by the general power supply, and may provide power at a second voltage (e.g., 9 V / 1.5 A) that is higher than the first voltage (e.g., 5 V / 500 mA) supplied by the general power supply. According to one embodiment, when the power supply device (390) supports fast charging, it may supply a first voltage to the electronic device (300) or supply a second voltage higher than the first voltage to the electronic device (300). According to one embodiment, when the power supply device (390) supports fast charging, it may control power to supply output power (e.g., the first voltage or the second voltage) corresponding to the charging power requested from the electronic device (300) to the electronic device (300).

[0054] In various embodiments, the electronic device (300) may be charged (e.g., wired charging or wireless charging) in conjunction with a power supply device (390). According to one embodiment, the electronic device (300) may perform a charging operation based on a voltage supplied from the power supply device (390) when connected to the power supply device (390) (e.g., connecting a connector of the power supply device (390) or being placed on a charging device (e.g., a wireless charging pad, etc.)). According to one embodiment, the electronic device (300) may receive power transmitted from the power supply device (390) through an electrical circuit, and charge the internal battery (310) based on the supplied power.

[0055] According to various embodiments, the electronic device (300) may include a battery (310), a battery management module (BMM) (320) (also referred to as a 'power management circuit' or a 'battery control circuit'), a processor (360) (also referred to as a 'control circuit'), etc., in relation to adjusting the full charge capacity information of the battery (310) and / or the charge state information of the battery (310).

[0056] The battery (310) may be functionally or physically connected to the power supply (390) via various interfaces. The battery (310) may include a positive electrode and a negative electrode. The battery (310) may include, for example, a rechargeable battery and / or a solar cell. The battery (310) may be mounted inside the electronic device (300) or formed externally. The battery (310) may be functionally, electrically, or physically connected to the electronic device (e.g., the electronic device (101) of FIG. 1) via various interfaces.

[0057] In various embodiments, when the power supply unit (390) is connected to the electronic device (300), the battery management module (320) can recognize the power supply unit (390) and transmit the recognition of the power supply unit (390) to the processor (360). The battery management module (320) is connected to the processor (360) of the electronic device (300) and can control the battery (310) under the control of the processor (360). According to various embodiments, the processor (360) can be interpreted as a control circuit.

[0058] According to various embodiments, the battery management module (320) may include a controller (325) (e.g., a micro controller unit (MCU)) for detecting status information such as an internal defect of the battery (310) and controlling the electronic device (300) based on the status information. According to various embodiments, the battery management module (320) may include a battery state measurement circuit (330) (e.g., a battery remaining capacity measurement circuit) for measuring a battery state (e.g., a state of charge (SOC)) of the battery (310). According to various embodiments, the battery management module (320) may include one or more charging circuits (340) for providing a charging current to the battery (310). According to various embodiments, the battery management module (320) may include a power management integrated circuit (335) for charging the battery (310) and supplying power to a system load (e.g., a load (380)), and a boost circuit (345). According to various embodiments, the battery management module (320) may include a coulomb counter (350) for continuously tracking the state of charge and / or state of discharge of the battery (310).

[0059] According to various embodiments, the coulomb counter (350) may be included within the battery state measurement circuit (330). In one embodiment, when the coulomb counter (350) is included within the battery state measurement circuit (330), the battery state measurement circuit (330) may be configured to include a configuration for voltage measurement and a configuration for current measurement, such as, for example, a voltage measurement unit (not shown) and a current measurement unit (not shown). In one embodiment, when the coulomb counter (350) is included within the battery state measurement circuit (330), the processor (360) may receive data from at least a portion of the voltage measurement unit (not shown) or the current measurement unit, and may calculate at least a portion of the voltage or current of the battery (310) based on the received data, thereby calculating the state of charge (SOC) of the battery (310). According to various embodiments, the amount of charge accumulated in the battery (310) can be calculated through the current measuring unit (not shown) of the battery status measuring circuit (330).

[0060] According to various embodiments, the battery management module (320) may further include a separate switch (not shown) (e.g., a field effect transistor (FET) circuit) to supply the current path of the power supply (390) to the battery (310) or to a circuit (e.g., a load (380)) of an electronic device (300) that requires power other than the battery (310).

[0061] According to various embodiments, the electronic device (300) may include a switch that can selectively connect a battery (310) and a battery management module (320) of the electronic device (300). The processor (310) may, as at least part of an operation of measuring first information (e.g., first voltage) and second information (e.g., second voltage) of the battery (310), measure the battery (310) and the battery management module (320) in an open state or in a circuit connection state to exhibit an effect equivalent thereto using the switch. According to one embodiment, the processor (310) may measure an open circuit voltage (OCV) in an open state or in a circuit connection state to exhibit an effect equivalent thereto between the battery (310) and the battery management module (320).

[0062] The battery state measurement circuit (330) may include, for example, a fuel gauge (F / G (fuel gauge) IC). According to one embodiment, the battery state measurement circuit (330) may be configured to include a coulomb counter (350) therein. The battery state measurement circuit (330) may measure information of the battery (310). According to various embodiments, the information of the battery (310) may include a remaining capacity (also expressed as 'remaining capacity' in the present disclosure), voltage, current, or temperature during charging, etc. According to one embodiment, the battery state measurement circuit (330) may measure information of the battery (310) based on a signal received through an electrical path connected to the battery (310). According to various embodiments, the battery state measurement circuit (330) may provide the measured information of the battery (310) to the processor (360).

[0063] A power management integrated circuit (PMIC) (335) can manage power of an electronic device (300). The power management integrated circuit (335) can be implemented in a wired and / or wireless charging manner. In various embodiments, the wireless charging manner can include, for example, a magnetic resonance manner, a magnetic induction manner, or an electromagnetic wave manner. The power management integrated circuit (335) for a wireless charging manner can further include additional circuits for wireless charging, for example, a coil loop, a resonant circuit, or a rectifier.

[0064] The charging circuit (340) can provide voltage applied through a boost circuit (345) or an external device (e.g., a power supply (390)) to at least one of the power management integrated circuit (335) or the battery (310).

[0065] A boost circuit (345) (e.g., booster circuit (BC)) is connected to a battery (310) and can boost the voltage of the connected battery (310) and provide it to the charging circuit (340).

[0066] The coulomb counter (350) can provide information on how much current has flowed into the battery (310) to the processor (310). In one embodiment, the coulomb counter (350) may be included in the battery state measurement circuit (330). In one embodiment, the coulomb counter (350) can continuously track (or monitor) the charge / discharge state (e.g., current used) of the battery (310) and output a pulse whenever a given amount of current is used to provide the processor (360) with information on the remaining capacity of the battery (310). In various embodiments, by using the battery state measurement circuit (330) and the coulomb counter (350), more accurate state information of the battery (310) (e.g., remaining capacity of the battery (310) based on voltage and / or current) can be provided. In one embodiment, errors (e.g., offsets) that may accumulate due to continuous current measurement in the coulomb counter (350) can be compensated for using the voltage measurement values ​​of the battery condition measurement circuit (330). For example, by using both the voltage method and the coulomb counting method together, problems (e.g., offsets) of the coulomb method can be reduced, thereby increasing accuracy.

[0067] According to various embodiments, the battery management module (320) may include an embedded controller (325) (e.g., a processor) and may control a boost circuit (345), a charging circuit (340), a battery state measurement circuit (330), or a power management integrated circuit (335) using the embedded controller (325). In various embodiments, the controller (325) may or may not be included in the battery management module (320) depending on the implementation of the battery management module (320). According to one embodiment, when the battery management module (320) includes the controller (325), the controller (325) may replace the processor (360) and process the control operations of the processor (360). For example, the controller (325) may be implemented as a dedicated controller (e.g., a micro controller unit (MCU), processor (120) of FIG. 1) included in the battery management module (320) to process operations related to adjusting the full charge capacity information of the battery (310).

[0068] According to various embodiments, the battery management module (320) may further include a memory (not shown) embedded therein, and may store at least one state information (e.g., first state information, second state information, etc.) obtained from an operation related to charging of the battery (310) using the embedded memory (not shown). In various embodiments, the memory for storing the state information related to the state of the battery (310) may be implemented by a general memory (e.g., the memory (130) of FIG. 1) or a dedicated memory embedded in the battery management module (320).

[0069] In various embodiments, the processor (310) may determine the state of the battery (310) based on information provided by the battery management module (320). Based on the result of determining the state of the battery (310), the processor (310) may display a user interface for notification information related to the battery (310) on a display (e.g., the display module (160) of FIG. 1). According to various embodiments, the processor (310) may control the battery (310) based on the state of the battery (310). According to various embodiments, the processor (310) may allow a user of the electronic device (300) to check the user interface for the state of the battery (310) and control an operation related to the battery (310) according to a command input by the user.

[0070] According to various embodiments, the processor (360) may periodically check the state of charge (SOC) information of the battery condition measurement circuit (330) or the charging current and full charge interrupt of the charging circuit (340) through the battery management module (320) to check the full charge state of the battery (310). According to one embodiment, when the battery (310) is fully charged, the processor (360) may control the battery management module (320) so that the power required for the electronic device (300) may be supplied through the power of the power supply device (390) instead of being supplied from the battery (310). According to one embodiment, the electronic device (300) may control the power supply through a switch circuit (e.g., a FET circuit) based on an input voltage. According to one embodiment, the electronic device (300) may control the switch circuit through an electrical signal based on the control of the processor (360).

[0071] According to various embodiments, the processor (360) may obtain voltage information and / or current information about the battery (310) based at least in part on the battery state measurement circuit (330) and / or the coulomb counter (350), and determine whether there is a leakage inside the battery (310) based on the obtained information. According to various embodiments, the processor (360) may include a full charge capacity information determination module (370) for determining full charge capacity information of the battery (310).

[0072] According to one embodiment, the processor (360) may determine full charge capacity information of the battery (310) based on at least one of the voltage or current of the battery (310) and / or the load (380). For example, the processor (360) may determine a resistance value of an internal resistance of the battery (310) and adjust full charge capacity information of the battery (310) based on the determined resistance value of the internal resistance. The operation of the processor (360) is described in more detail below with reference to FIGS. 4 to 9 .

[0073] FIG. 4 is a flowchart illustrating an example of a method performed by an electronic device according to various embodiments.

[0074] According to one embodiment, a first electronic device (e.g., electronic device (101) of FIG. 1, electronic device (200) of FIG. 2, electronic device (300) of FIG. 3) may determine full charge capacity information of a battery (e.g., battery (189) of FIG. 1, battery (289) of FIG. 2, battery (310) of FIG. 3) and transmit charge state information based on the determined full charge capacity information to a second electronic device (e.g., electronic device (102) of FIG. 1, power supply device (390) of FIG. 3). In various embodiments of the present disclosure, the first electronic device may be expressed as an 'external device' (e.g., an external device of the first electronic device) with respect to the second electronic device. Similarly, the second electronic device may be expressed as an 'external device' (e.g., an external device of the second electronic device) with respect to the first electronic device.

[0075] In operation (410), the first electronic device can supply current to the load based on whether the battery is fully charged.

[0076] According to one embodiment, a first electronic device can determine whether a battery is fully charged based on the battery's charging current. For example, the first electronic device can determine that the battery is fully charged if the battery's charging current corresponds to an end-of-charge current (also referred to as "EOC current" in this disclosure). The battery's charging current is described in more detail below with reference to FIG. 5 .

[0077] A first electronic device according to one embodiment may include a battery (e.g., battery 189 of FIG. 1, battery 289 of FIG. 2, battery 310 of FIG. 3) and a load (e.g., load 380 of FIG. 3). The battery and the load of the first electronic device may be electrically connected. The first electronic device may supply power from the battery to the load. As power is supplied to the load, current may flow to the load. In various embodiments of the present disclosure, supplying power from the battery to the load may be interpreted as substantially corresponding to supplying current to the load using power from the battery.

[0078] In operation (420), the first electronic device can determine (e.g., detect, recognize, sense, identify, determine) the resistance value of the internal resistance of the battery based on the magnitude of the voltage of the battery measured after current is supplied to the load and the magnitude of the current. The battery of the first electronic device can have an internal resistance. The internal resistance of the battery can be formed by element(s) of the battery.

[0079] According to one embodiment, the first electronic device can determine the resistance value of the internal resistance of the battery based on the magnitude of the voltage of the battery measured after the current is supplied to the load and the magnitude of the current applied to the load. A relationship (e.g., an equation) can be formed between at least two of the magnitude of the voltage of the battery (or the amount of change in voltage), the magnitude of the current flowing through the battery (or the amount of change in current), the magnitude of the load (e.g., resistance), the magnitude of the current flowing through the load (or the amount of change in current), or the resistance value of the internal resistance of the battery. The first electronic device can determine the resistance value of the internal resistance of the battery by using the relationship between at least two of the magnitude of the voltage of the battery (or the amount of change in voltage), the magnitude of the current flowing through the battery (or the amount of change in current), the magnitude of the load (e.g., resistance), the magnitude of the current flowing through the load (or the amount of change in current).

[0080] According to one embodiment, the first electronic device can supply current to the load based on the ability to measure the magnitude of the current flowing to the load or the ability to control the magnitude of the current flowing to the load. For example, the first electronic device can include a constant current source capable of maintaining the magnitude of the current flowing to the load substantially constant. For example, the first electronic device can include a current measuring circuit configured to measure the magnitude of the current flowing to the load. According to one embodiment, the first electronic device determines the resistance value of the internal resistance of the battery based on the magnitude of the current flowing to the load, and therefore can supply current to the load based on the ability to measure the magnitude of the current flowing to the load or the ability to control the magnitude of the current flowing to the load.

[0081] In operation (430), the first electronic device may adjust (e.g., reconfigure, replace, overwrite) full capacity information of the battery based on a comparison between the resistance value of the determined internal resistance and the threshold resistance value. The threshold resistance value may be stored in a storage medium included in the memory of the electronic device.

[0082] The battery's full charge capacity information may include the capacity stored in the battery when the battery is fully charged. In the present disclosure, the capacity stored in the battery when the battery is fully charged may also be expressed as "full capacity." As the battery is repeatedly charged and discharged, its performance may deteriorate. This deterioration may include a decrease in the battery's full charge capacity and / or an increase in the resistance value of the battery's internal resistance.

[0083] According to one embodiment, the first electronic device can adjust the full charge capacity information by applying a coefficient less than 1 to the full charge capacity information of the battery based on the resistance value of the determined internal resistance being greater than or equal to a threshold resistance value. For example, the first electronic device can adjust the full charge capacity by a value obtained by multiplying the full charge capacity of the battery by the coefficient. The coefficient can have a value greater than 0 and less than 1. According to one embodiment, the value of the coefficient can be determined based on the threshold resistance value and / or the resistance value of the internal resistance.

[0084] According to one embodiment, the first electronic device may initially set the full charge capacity information of the battery to a predefined value. The first electronic device may set the full charge capacity information to the predefined value for a new battery. The first electronic device may adjust the full charge capacity information of the battery based on the full charge voltage of the battery. For example, the first electronic device may obtain full charge capacities mapped to full charge voltages. Each full charge capacity may be mapped to one full charge voltage. For example, the mapping between the full charge capacity and the full charge voltage may be determined experimentally. If the first electronic device determines to adjust the full charge capacity information of the battery, the first electronic device may adjust the full charge capacity information of the battery so that it has a full charge capacity mapped to the full charge voltage of the battery.

[0085] According to one embodiment, the first electronic device may adjust the full charge capacity information of the battery based on the number of times that the resistance value of the determined internal resistance is determined to be greater than or equal to a threshold resistance value. The first electronic device may determine the resistance value of the internal resistance of the battery each time the battery is fully charged. If the first electronic device determines that the resistance value of the internal resistance is greater than or equal to the threshold resistance value a threshold number of times or more, the first electronic device may adjust the full charge capacity information of the battery. According to one embodiment, the first electronic device may adjust the full charge capacity information of the battery when the resistance value of the internal resistance is determined to be greater than or equal to the threshold resistance value multiple times, rather than adjusting the full charge capacity information of the battery when the resistance value of the internal resistance is determined to be greater than or equal to the threshold resistance value once, thereby preventing the full charge capacity information of the battery from being incorrectly adjusted when the resistance value of the internal resistance of the battery is incorrectly determined once.

[0086] For example, the first electronic device may store the number of times it determines that the resistance value of the internal resistor is greater than or equal to a threshold resistance value in a nonvolatile memory (e.g., the nonvolatile memory (134) of FIG. 1). When the first electronic device determines that the resistance value of the internal resistor is greater than or equal to the threshold resistance value, the first electronic device may update the number of times stored in the nonvolatile memory (e.g., increase it by 1). The first electronic device may adjust the full charge capacity information of the battery based on the number of times stored in the nonvolatile memory.

[0087] In operation (440), the first electronic device can share the state of charge information (SOC information) of the battery determined (e.g., detected, recognized, sensed, identified, determined) based on the adjusted full charge capacity information with the second electronic device.

[0088] For example, a first electronic device may transmit charge status information to a second electronic device. For example, the second electronic device may access the first electronic device and read the charge status information of the first electronic device.

[0089] A first electronic device can determine battery state-of-charge information based on remaining capacity information and full charge capacity information of the battery. The remaining capacity information of the battery can include the remaining capacity stored in the battery at a corresponding point in time. The first electronic device can determine the battery state-of-charge information based on the ratio of the remaining capacity information to the full charge capacity information of the battery. For example, the first electronic device can determine the battery state-of-charge based on a value determined by dividing the remaining capacity by the full charge capacity. The first electronic device can determine the battery state-of-charge in percent (%) by multiplying the value obtained by dividing the remaining capacity by the full charge capacity by 100.

[0090] According to various embodiments of the present disclosure, the first electronic device is primarily described as performing, but not limited to, determining the resistance value of the internal resistor and adjusting the full charge capacity information in response to the battery being fully charged. For example, the first electronic device may determine whether to perform the determination of the resistance value of the internal resistor and the adjustment of the full charge capacity information based on whether the battery is fully charged and the duration of the charging operation.

[0091] According to one embodiment, the first electronic device may determine whether to adjust the full charge capacity information of the battery based on the duration of the charging operation. For example, the first electronic device may accumulate the duration of the charging operation while performing the charging operation of the battery. The duration may refer to the length of time during which the magnitude of the charging current supplied to the battery is continuously maintained at a threshold current magnitude. The first electronic device may start accumulating the duration at a first time point when the magnitude of the charging current changes from below the threshold current magnitude to above the threshold current magnitude. The first electronic device may end accumulating the duration at a second time point when the magnitude of the charging current changes from above the threshold current magnitude to below the threshold current magnitude. The first electronic device may skip determining the resistance value of the internal resistance of the battery and adjusting the full charge capacity information of the battery based on the fact that the duration of the charging operation is shorter than the threshold time length.

[0092] The first electronic device can stop supplying charging current independently of the connection and / or disconnection between the first electronic device and the power supply when the battery is fully charged. For example, the first electronic device can limit charging of the battery while the connection between the first electronic device and the power supply is maintained when the battery is fully charged. Thereafter, the battery may be discharged naturally or through use of the first electronic device, and the first electronic device may recharge the battery. If the fully charged battery is recharged after being naturally discharged while maintaining the connection to the power supply, the duration of the charging operation may be shorter than a threshold time length. Even if the battery's state of charge is above a certain level, the duration of the charging operation may be shorter than the threshold time length because the power required until the battery is fully charged is below the threshold power. The first electronic device may omit determining the resistance value of the internal resistance of the battery and adjusting the full charge capacity information of the battery based on the fact that the duration of the charging operation is shorter than the threshold time length. A first electronic device according to one embodiment can prevent excessively frequent determination of a resistance value of an internal resistance of a battery and adjustment of the full charge capacity information of the battery by determining whether to adjust the full charge capacity information of the battery based on the duration of a charging operation.

[0093] FIG. 5 is a graph illustrating changes in charging current during a charging operation of a battery according to various embodiments.

[0094] As shown in Fig. 5, when charging of a battery (e.g., battery (189) of Fig. 1, battery (289) of Fig. 2, battery (310) of Fig. 3) begins, the charging current of the battery is a specific current size (I) for a certain length of time. CC) can be maintained. The section where a certain current size is maintained can be expressed as a constant current (CC) section (510) of the battery's charging operation (e.g., a straight section of the graph, a section where a high charging current is maintained).

[0095] When the battery voltage reaches near the full charge voltage, the battery voltage may be substantially maintained at a specific voltage (e.g., the full charge voltage) and the battery's charging current may decrease. The period in which the battery voltage is maintained at a specific voltage and the battery's charging current decreases may be expressed as a constant voltage (CV) period (530) in which the battery's charging operation is performed (e.g., a descending curve period in the graph, in which the charging current decreases).

[0096] The size of the battery's charging current is equal to the size of the terminal current (I EOC ) to the point (t) EOC ) when the battery is fully charged and the supply of charging current may be stopped. The terminal current size (I EOC ) may be a specified current size depending on the design.

[0097] A first electronic device according to one embodiment (e.g., electronic device (101) of FIG. 1, electronic device (200) of FIG. 2, electronic device (300) of FIG. 3) can determine that a battery is fully charged based on a charging current of the battery. For example, the first electronic device can determine that the magnitude of the charging current of the battery is a threshold current magnitude (e.g., a terminal current (I EOC )) Based on this, it can be determined that the battery is fully charged.

[0098] FIG. 6 is a flowchart illustrating an example of an operation of a first electronic device changing a threshold resistance value according to various embodiments.

[0099] A first electronic device according to one embodiment (e.g., electronic device (101) of FIG. 1, electronic device (200) of FIG. 2, electronic device (300) of FIG. 3) can change a threshold resistance value when full charge capacity information is adjusted.

[0100] In operation (610), the first electronic device may increase the threshold resistance value based on adjusting the full charge capacity information of the battery.

[0101] As described above, as the performance of the battery deteriorates, the resistance value of the internal resistance of the battery may increase, and the full charge capacity of the battery may decrease. If the resistance value of the internal resistance of the battery increases from a first resistance value to a second resistance value due to the performance deterioration of the battery, the first electronic device may adjust the full charge capacity information of the battery. The threshold resistance value may be set to a value greater than the first resistance value and less than the second resistance value. After the full charge capacity information of the battery is adjusted, the performance deterioration of the battery may progress further. The first electronic device may increase the internal resistance value of the battery from the second resistance value to a third resistance value due to the further performance deterioration of the battery. The first electronic device may increase the threshold resistance value to a value greater than the second resistance value (or the existing threshold resistance value) in consideration of the fact that the internal resistance value of the battery will further increase due to the further performance deterioration of the battery.

[0102] In operation (620), the first electronic device may compare the resistance value of the internal resistance of the battery determined based on the battery being fully charged again with an increased threshold resistance value.

[0103] After the battery's full charge capacity information and threshold resistance are changed, the battery can be recharged. The first electronic device can re-determine the resistance value of the battery's internal resistance based on the battery being recharged. The first electronic device can compare the re-determined resistance value of the battery's internal resistance with the increased threshold resistance value. The first electronic device can adjust the battery's full charge capacity information based on the comparison between the re-determined resistance value of the battery's internal resistance and the increased threshold resistance value.

[0104] FIG. 7 is a diagram illustrating an example of an operation in which a second electronic device, having obtained information about a battery of a first electronic device from a first electronic device according to various embodiments, displays a screen based on the obtained information.

[0105] According to one embodiment, a first electronic device (e.g., electronic device 101 of FIG. 1, electronic device 200 of FIG. 2, electronic device 300 of FIG. 3) may transmit information about a battery of the first electronic device and / or a screen display command to a second electronic device (e.g., electronic device 102 of FIG. 1). The information about the battery may include at least one of full charge capacity information, charge status information, or remaining capacity information. The screen display command may cause the second electronic device, which has received the screen display command, to display a screen based on the information about the battery.

[0106] For example, a first electronic device may transmit battery charge status information to a second electronic device based on adjusting the battery's full charge capacity information. The second electronic device may obtain battery charge status information of the first electronic device from the first electronic device based on the adjusted battery charge capacity information of the first electronic device. For example, the second electronic device may receive battery charge status information from the first electronic device. For example, the second electronic device may access the first electronic device to read the battery charge status information of the first electronic device.

[0107] The charge status information of the battery of the first electronic device can be determined using the adjusted full charge capacity information. The second electronic device can display a screen based on the charge status information of the battery of the first electronic device.

[0108] According to one embodiment, the second electronic device may obtain information about the battery from the first electronic device and display a screen based on the obtained information.

[0109] As shown in FIG. 7, for example, a first electronic device may transmit a command to display a screen (710) recommending battery replacement to a second electronic device based on the adjusted full charge capacity information. The second electronic device may display a screen (710) recommending battery replacement based on obtaining the command to display a screen (710) recommending battery replacement from the first electronic device.

[0110] According to one embodiment, the second electronic device may include a communication module, a display module, a memory, and a processor. The communication module of the second electronic device may establish communication with a first electronic device including a battery. The communication module of the second electronic device may be configured to be the same as or similar to the communication module of the first electronic device (e.g., the communication module (190) of FIG. 1). The second electronic device may receive information about the battery from the first electronic device through the communication module. The display module of the second electronic device may display a screen based on the information about the battery. The memory of the second electronic device may store instructions. The processor of the second electronic device may access the memory of the second electronic device and execute the instructions. Each of the display module of the second electronic device, the memory of the second electronic device, and the processor of the second electronic device may be configured identically or similarly to the display module of the first electronic device (e.g., the display module (160) of FIG. 1), the memory of the first electronic device (e.g., the memory (130) of FIG. 1), and the processor of the first electronic device (e.g., the processor (120) of FIG. 1).

[0111] According to one embodiment, the first electronic device may be implemented as a wireless earphone, and the second electronic device may be implemented as a portable communication device (e.g., a smartphone).

[0112] FIG. 8 is a flowchart illustrating an example of a method by which a first electronic device controls a charging operation of a battery according to various embodiments.

[0113] According to one embodiment, a first electronic device (e.g., electronic device (101) of FIG. 1, electronic device (200) of FIG. 2, electronic device (300) of FIG. 3) can control charging of a battery based on full charge capacity information of the adjusted battery (e.g., battery (189) of FIG. 1, battery (289) of FIG. 2, battery (310) of FIG. 3).

[0114] In operation (810), the first electronic device can adjust the full charge voltage information of the battery based on the adjusted full charge capacity information of the battery.

[0115] The full charge voltage information of the battery may include the voltage size of the battery measured at the time when the battery is fully charged. In the present disclosure, the voltage size of the battery measured at the time when the battery is fully charged may also be expressed as the 'full charge voltage'. As the performance of the battery deteriorates, the resistance value of the internal resistance of the battery may increase, the full charge capacity of the battery may decrease, and the full charge voltage of the battery may decrease. According to one embodiment, a first electronic device may adjust (e.g., decrease) the full charge voltage information of the battery as the full charge capacity information of the battery is adjusted (e.g., decreased). The first electronic device may prevent the battery from being overcharged by not adjusting the full charge voltage of the battery even though the full charge capacity of the battery has decreased as a result of adjusting the full charge voltage information of the battery. According to one embodiment, the first electronic device may adjust the full charge voltage information of the battery to a value specified according to the design.

[0116] In operation (820), the first electronic device can control the charging operation of the battery based on the result of comparing the voltage of the battery with the full charge voltage information.

[0117] As described above in FIG. 5, during the constant current (CC) period during the battery charging operation, a substantially constant charging current may be supplied to the battery. Thereafter, as the charging progresses, when the voltage of the battery approaches the full charge voltage (e.g., the voltage of the battery has a difference less than or equal to the threshold voltage from the full charge voltage), the constant voltage (CV) period during the battery charging operation may begin, thereby reducing the charging current supplied to the battery.

[0118] According to one embodiment, the first electronic device may adjust (e.g., decrease) the full charge voltage of the full charge voltage information based on adjusting the full charge capacity information of the battery. The first electronic device may adjust the amount of charging current to be supplied to the battery based on the adjusted full charge voltage information of the battery. According to one embodiment, the battery management module (e.g., the battery management module (320) of FIG. 3) of the first electronic device may determine whether to maintain (e.g., supply a charging current corresponding to a constant current section) or decrease (e.g., supply a charging current corresponding to a constant voltage section) the charging current to be supplied to the battery based on a comparison between the voltage of the battery and the full charge voltage information.

[0119] FIG. 9 is a flowchart illustrating an example of a method for determining current magnitude information regarding current supplied to a load by a first electronic device according to various embodiments.

[0120] A first electronic device according to one embodiment (e.g., electronic device (101) of FIG. 1, electronic device (200) of FIG. 2, electronic device (300) of FIG. 3) can determine a resistance value of an internal resistance of a battery, and then determine a magnitude of a current to be supplied to a load to re-determine the resistance value of the internal resistance of the battery when the battery is fully charged again.

[0121] In operation (910), the first electronic device can determine current size information based on determining the resistance value of the internal resistance of the battery.

[0122] As the performance of the battery deteriorates, the resistance value of the internal resistance of the battery may increase. The resistance value of the internal resistance of the battery may increase from a first resistance value to a second resistance value. Even if the magnitude of the current supplied to the load is the same, the decrease in the voltage magnitude that appears in the voltage of the battery as the current is supplied to the load may be greater when the resistance value of the internal resistance is the first resistance value than when the resistance value is the second resistance value. In one embodiment, the first electronic device may adjust (e.g., decrease) the magnitude of the current applied to the load in order to control the decrease in the voltage magnitude that appears in the voltage of the battery as the current is supplied to the load to be below a threshold voltage magnitude.

[0123] In operation (920), the first electronic device can supply a current of a size corresponding to the current size information to the load based on the battery being fully charged again.

[0124] The first electronic device can supply a current corresponding to the determined current size information to the load to re-determine the resistance value of the internal resistance of the battery when the battery is fully charged again after determining the current size information. The first electronic device can determine the resistance value of the internal resistance of the battery based on the current size supplied to the load and the decrease in the voltage of the battery.

[0125] Although not explicitly illustrated in FIG. 9, the first electronic device may compare the resistance value of the re-determined internal resistance with a threshold resistance value (or an adjusted threshold resistance value). The first electronic device may adjust the full charge capacity information of the battery based on the comparison between the resistance value of the re-determined internal resistance and the threshold resistance value.

[0126] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0127] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0128] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0129] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one command among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0130] According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0131] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0132] The embodiments described above may be implemented using hardware components, software components, and / or a combination of hardware components and software components. For example, the devices, methods, and components described in the embodiments may be implemented using a general-purpose computer or a special-purpose computer, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing instructions and responding to them. The processing device may execute an operating system (OS) and software applications running on the operating system. Furthermore, the processing device may access, store, manipulate, process, and generate data in response to the execution of the software. For ease of understanding, the processing device is sometimes described as being used alone; however, one of ordinary skill in the art will recognize that the processing device may include multiple processing elements and / or multiple types of processing elements. For example, a processing unit may include multiple processors, or a processor and a controller. Other processing configurations, such as parallel processors, are also possible.

[0133] Software may include computer programs, codes, instructions, or a combination of one or more of these, which may configure a processing device to perform a desired operation or may independently or collectively command the processing device. The software and / or data may be permanently or temporarily embodied in any type of machine, component, physical device, virtual equipment, or computer storage medium or device for interpretation by the processing device or for providing instructions or data to the processing device. The software may also be distributed over networked computer systems and stored or executed in a distributed manner. The software and data may be stored on a computer-readable recording medium.

[0134] The method according to the embodiment may be implemented in the form of program commands that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program commands, data files, data structures, etc., alone or in combination, and the program commands recorded on the medium may be those specially designed and configured for the embodiment or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and hardware devices specially configured to store and execute program commands such as ROMs, RAMs, and flash memories. Examples of program commands include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter, etc.

[0135] The hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiment, and vice versa.

Claims

1. In an electronic device (101; 200; 300), Batteries having internal resistance (189; 289; 310); A load (380) electrically connected to the above battery; A communication circuit for establishing communication with an external device (102; 390); At least one processor (120) comprising a processing circuit; and A memory (130) comprising one or more storage media storing instructions and threshold resistance values. Including, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: Based on the battery (189; 289; 310) being fully charged, current is supplied to the load (380), Based on the magnitude of the voltage of the battery (189; 289; 310) measured while supplying current to the load (380) and the magnitude of the current, the resistance value of the internal resistance is determined. Adjust the full charge capacity information of the battery (189; 289; 310) based on a comparison between the resistance value of the determined internal resistance and the critical resistance value, To share the state of charge information (SOC information) of the battery (189; 289; 310) determined based on the adjusted full charge capacity information with the external device (102; 390). Electronic devices (101; 200; 300).

2. In paragraph 1, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: Based on the remaining capacity information of the battery (189; 289; 310) and the full charge capacity information of the battery (189; 289; 310), the charging state information of the battery (189; 289; 310) is determined. Electronic devices (101; 200; 300).

3. In any one of paragraphs 1 and 2, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: By applying a coefficient less than 1 to the full charge capacity information of the battery (189; 289; 310), the full charge capacity information is adjusted based on the resistance value of the determined internal resistance being greater than or equal to the threshold resistance value. Electronic devices (101; 200; 300).

4. In any one of paragraphs 1 to 3, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: Adjusting the full charge capacity information of the battery (189; 289; 310) based on the number of times the resistance value of the determined internal resistance is determined to be greater than or equal to the threshold resistance value. Electronic devices (101; 200; 300).

5. In any one of paragraphs 1 to 4, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: Based on adjusting the full charge capacity information of the above battery (189; 289; 310), the threshold resistance value is increased, To compare the resistance value of the internal resistance of the battery (189; 289; 310) determined based on the battery (189; 289; 310) being fully charged again with the increased threshold resistance value. Electronic devices (101; 200; 300).

6. In any one of paragraphs 1 to 5, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: Based on the adjusted full charge capacity information, a display command on the screen (710) recommending replacement of the battery (189; 289; 310) is transmitted to the external device (102; 390). Electronic devices (101; 200; 300).

7. In any one of paragraphs 1 to 6, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: Based on the full charge capacity information of the above-mentioned adjusted battery (189; 289; 310), the full charge voltage information of the battery (189; 289; 310) is adjusted, Based on the result of comparing the voltage of the battery (189; 289; 310) with the full charge voltage information, the charging operation of the battery (189; 289; 310) is controlled. Electronic devices (101; 200; 300).

8. In any one of paragraphs 1 to 7, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: While performing the charging operation of the above battery (189; 289; 310), the duration of the charging operation is accumulated, Based on the fact that the duration of the above charging operation is shorter than the critical time length, the determination of the resistance value of the internal resistance of the battery (189; 289; 310) and the adjustment of the full charge capacity information of the battery (189; 289; 310) are skipped. Electronic devices (101; 200; 300).

9. In any one of paragraphs 1 to 8, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: Based on the ability to measure the size of the current flowing to the load (380) or the ability to control the size of the current flowing to the load (380), supplying current to the load (380). Electronic devices (101; 200; 300).

10. In any one of paragraphs 1 to 9, The above instructions, when executed by the at least one processor (120), cause the electronic device (101; 200; 300) to: Based on determining the resistance value of the internal resistance of the above battery (189; 289; 310), the current size information is determined, Based on the battery (189; 289; 310) being recharged, a current of a size corresponding to the current size information is supplied to the load (380). Electronic devices (101; 200; 300).

11. In an electronic device (102), A communication circuit establishing communication with an external device (101; 200; 300) including a battery (189; 289; 310); display; At least one processor comprising a processing circuit; and Memory containing one or more storage media for storing computer-executable instructions Including, The above instructions, when executed by the at least one processor, cause the electronic device to: Based on the adjustment of the full charge capacity information of the battery (189; 289; 310), the charging state information of the battery (189; 289; 310) determined using the adjusted full charge capacity information is acquired from the external device (101; 200; 300). To display a screen based on the acquired charging status information, Electronic device (102).

12. In a method performed by an electronic device (101; 200; 300), An operation of supplying current to a load (380) electrically connected to the battery (189; 289; 310) based on the battery being fully charged; An operation of determining a resistance value of the internal resistance of the battery (189; 289; 310) based on the magnitude of the voltage of the battery (189; 289; 310) measured while supplying current to the load (380) and the magnitude of the current; An operation of adjusting the full charge capacity information of the battery (189; 289; 310) based on a comparison between the resistance value of the determined internal resistance and the critical resistance value; and An operation of sharing the state of charge information (SOC information) of the battery (189; 289; 310) determined based on the adjusted full charge capacity information with an external device (102; 390). A method including:

13. In paragraph 12, The operation of sharing the charging status information of the above battery (189; 289; 310) is An operation of determining charge status information of the battery (189; 289; 310) based on the remaining capacity information of the battery (189; 289; 310) and the full charge capacity information of the battery (189; 289; 310), method.

14. In any one of paragraphs 12 to 13, The operation of determining the resistance value of the internal resistance of the above battery (189; 289; 310) is as follows: An operation of adjusting the full charge capacity information of the battery (189; 289; 310) by applying a coefficient less than 1 to the full charge capacity information based on the resistance value of the determined internal resistance being greater than or equal to the threshold resistance value. method.

15. A computer-readable recording medium storing one or more computer programs including instructions for performing the method of any one of claims 12 to 14.

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