# US 11,994,562 B2 · Electronic device and method for diagnosing battery thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,562 B2 - Document ID: US11994562B2 - Status: Granted - Kind: B2 - Application number: 17/309,295 - Filed: 2019-11-18 - Published: 2022-01-27 - Granted: 2024-05-28 - Earliest claimed: 2018-11-19 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Sengtai Lee; Daejin Kwak; Jisu Ryu; Yonghyun Park; Jinhyuk Choi; Yonghwan Hyun - Web page: https://patentgrep.com/patent/US11994562B2 ## CPC - G01R 31/3835: involving only voltage measurements - G01R 31/392: Determining battery ageing or deterioration, e.g. state of health - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H01M 10/44: Methods for charging or discharging (circuits for charging H02J7/00) - H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) - H02J 7/60: including safety or protection arrangements - H02J 7/825: {Detection of fully charged condition} - H02J 7/84: Control of state of health [SOH] - G01R 31/3646: {for indicating electrical conditions or variables, e.g. visual or audible indicators} - H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing} - H02J 7/875: {Charging or discharging for charge maintenance, battery initiation or rejuvenation} - H02J 7/94: in response to battery current - Y02E 60/10: Energy storage using batteries - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Various embodiments of the present invention relate to an electronic device for diagnosing a battery, and the electronic device may include a battery; and a power management module operatively connected with the battery, and including a charging circuit which controls charge of the battery, wherein the power management module is configured to monitor a charge state of the battery, if the battery reaches a first designated state, identify a time taken to change from the first designated state to a second designated state, and determine whether the battery is abnormal, based at least in part on the identified time. Other various embodiments are possible. ## Claims ### Claim 1 An electronic device comprising: a battery; and a power management module operatively connected with the battery, and comprising a charging circuit which controls charge of the battery, wherein the power management module is configured to: monitor a charge state of the battery, if the charge state of the battery reaches a first designated state, identify a time taken to change from the first designated state to a second designated state, and determine whether the battery is abnormal, based at least in part on the identified time, wherein the identified time includes a time taken to an additional charge, a time taken to a random discharge and a time taken to a supplementary charge, wherein the time taken to the additional charge indicates a time taken to change from a first state having a first voltage that causes the electronic device to display, on a user interface, that the battery is fully charged, to a second state in which the charge of the battery is finished, wherein the time taken to the random discharge indicates a time taken to change from the second state to a third state having a second voltage for starting a supplementary charge of the battery, and wherein the time taken to the supplementary charge indicates a time taken to change from the third state to the first state. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the power management module is configured to: determine that the battery has abnormality when the time taken to change to the additional charge is greater than a first reference time designated, the time taken to the random discharge is smaller than a second reference time designated, and the time taken to the supplementary charge is greater than a third reference time designated. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein the power management module is configured to: in response to the battery reaching the first designated state, further identify whether the electronic device is in a designated environment, and in response to the electronic device being in the designated environment, identify the time taken to change from the first designated state to the second designated state. ### Claim 4 (depends on 3) The electronic device of claim 3, wherein the designated environment comprises at least one of a temperature of a designated range, a designated time or an inactive state of the electronic device. ### Claim 5 (depends on 1) The electronic device of claim 1, further comprising: a processor configured to notify a battery abnormality to a user using at least one of an audio output device, a haptic module, or a display, in response to receiving information notifying the battery abnormality from the power management module. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the power management module is configured to perform at least one of blocking the charge of the battery or limiting a full voltage by controlling the charging circuit in response to determining that the battery is abnormal. ### Claim 7 (depends on 1) The electronic device of claim 1, further comprising: a memory for storing a result of determining whether the battery is abnormal, wherein the power management module is configured to determine whether the battery is abnormal, by considering determination results stored in the memory for a designated period. ### Claim 8 A method for diagnosing a battery of an electronic device, comprising: monitoring a charge state of the battery; if the charge state of the battery reaches a first designated state, identifying a time taken to change from the first designated state to a second designated state; and determining whether the battery is abnormal, based at least in part on the identified time, wherein the identified time includes a time taken to an additional charge, a time taken to a random discharge and a time taken to a supplementary charge, wherein the time taken to the additional charge indicates a time taken to change from a first state having a first voltage that causes the electronic device to display, on a user interface, that the battery is fully charged, to a second state in which the charge of the battery is finished, wherein the time taken to the random discharge indicates a time taken to change from the second state to a third state having a second voltage for starting a supplementary charge of the battery, and wherein the time taken to the supplementary charge indicates a time taken to change from the third state to the first state. ### Claim 9 (depends on 8) The method of claim 8, wherein determining whether the battery is abnormal comprises: determining that the battery has abnormality when the time taken to change to the additional charge is greater than a first reference time designated, the time taken to the random discharge is smaller than a second reference time designated, and the time taken to the supplementary charge is greater than a third reference time designated. ### Claim 10 (depends on 8) The method of claim 8, further comprising: in response to the charge state of the battery reaching the first designated state, identifying whether the electronic device is in a designated environment; and wherein the identifying the time taken to change from the first designated state to the second designated state is performed, in response to the electronic device being in the designated environment. ### Claim 11 (depends on 10) The method of claim 10, wherein the designated environment comprises at least one of a temperature of a designated range, a designated time or an inactive state of the electronic device. ### Claim 12 (depends on 8) The method of claim 8, further comprising: notifying a battery abnormality to a user using at least one of an audio output device, a haptic module, or a display in response to determining that the battery is abnormal. ### Claim 13 (depends on 8) The method of claim 8, further comprising: storing a result of determining whether the battery is abnormal in a memory; and determining whether the battery is abnormal, by considering determination results stored in the memory for a designated period. ### Claim 14 (depends on 8) The method of claim 8, further comprising: performing at least one of blocking the charge of the battery or limiting a full voltage in response to determining that the battery is abnormal. ### Claim 15 An electronic device comprising: a battery; a charging module operatively connected with the battery, and configured to control a charge of the battery; and a processor operatively connected with the charging module, wherein the processor is configured to: monitor a charge state of the battery, identify, if the charge state of the battery reaches a first designated state, a time taken to change from the first designated state to a second designated state, and determine whether the battery is abnormal, based at least in part on the identified time, wherein the identified time includes a time taken to an additional charge, a time taken to a random discharge and a time taken to a supplementary charge, wherein the time taken to the additional charge indicates a time taken to change from a first state having a first voltage that causes the electronic device to display, on a user interface, that the battery is fully charged, to a second state in which the charge of the battery is finished, wherein the time taken to the random discharge indicates a time taken to change from the second state to a third state having a second voltage for starting a supplementary charge of the battery, and wherein the time taken to the supplementary charge indicates a time taken to change from the third state to the first state. ### Claim 16 (depends on 15) The electronic device of claim 15, wherein the processor is configured to: identify, in response to the battery reaching the first designated state, whether the electronic device is in a designated environment, and in response to the electronic device being in the designated environment, identify the time taken to change from the first designated state to the second designated state. ### Claim 17 (depends on 16) The electronic device of claim 16, wherein the designated environment comprises at least one of a temperature of a designated range, a designated time or an inactive state of the electronic device. ### Claim 18 (depends on 15) The electronic device of claim 15, wherein the processor is configured to: in response to determining that the battery is abnormal, perform at least one of blocking the charge of the battery or limiting a full voltage by controlling the charging module.