Electronic device including battery and method of controlling charging thereof

1. An electronic device, comprising:

a battery; and

at least one processor,

wherein the processor is configured to:

identify whether an external power source for charging the battery is connected to the electronic device,

identify a voltage of the battery when connection of the external power source is identified,

determine a charge start time based on time when the connection of the external power source is identified,

determine a charge end time based on situation information related to the electronic device,

determine a charge stop time of the battery based on the charge start time, the charge end time and the voltage of the battery when a difference between the charge start time and the charge end time satisfies a designated threshold, and

divide a period between the charge start time and the charge end time into a first charge section, a charge stop section and a second charge section based on the charge stop time and perform charging of the battery based on the divided period.

2. The electronic device of claim 1 , wherein:

the processor is further configured to charge the battery in a first designated mode in the first charge section and charge the battery in a second designated mode in the second charge section, and

charge power in the first designated mode is higher than charge power in the second designated mode.

3. The electronic device of claim 2 , wherein the processor is further configured to charge the battery with charge power in a third designated mode higher than or equal to the charge power in the first designated mode when the difference between the charge start time and the charge end time does not satisfy the designated threshold.

4. The electronic device of claim 1 , wherein the processor is further configured to:

divide the first charge section into a plurality of sections, and

charge the battery in modes respectively designated in the plurality of sections.

5. The electronic device of claim 1 , wherein the processor is further configured to block voltage or current supplied to the battery in the charge stop section.

6. The electronic device of claim 1 , wherein the processor is further configured to supply voltage or current from the external power source in the charge stop section so that the battery maintains a constant voltage state in the charge stop section.

7. The electronic device of claim 1 , wherein the charge start time is determined based on at least one of time when the external power source is connected in a wired manner through a connection terminal, time when the external power source is wirelessly connected through an antenna module, and time when power starts to be supplied to the battery from the external power source.

8. The electronic device of claim 1 , wherein the situation information related to the electronic device comprises at least one of a user's use pattern for the electronic device, a user's schedule information stored in the electronic device or an external electronic device, and information on a surrounding environment of the electronic device.

9. The electronic device of claim 1 , wherein the designated threshold comprises at least one of a predetermined difference between the charge end time and the charge start time and time when a full charge voltage is reached in a normal or high-speed charge mode of the battery.

10. The electronic device of claim 1 , wherein the processor is further configured to:

block voltage or current supplied to the battery until the voltage of the battery reaches a designated critical voltage after the battery is charged up to a full charge voltage, and

charge the battery in a fourth designated mode when the voltage of the battery reaches the designated critical voltage.

11. The electronic device of claim 2 , wherein the processor is further configured to determine the second designated mode so that the charging of the battery is terminated before or at the charge end time.

12. An electronic device, comprising:

a battery; and

at least one processor,

wherein the processor is configured to:

identify whether an external power source for charging the battery is connected to the electronic device,

identify a voltage of the battery when connection of the external power source is identified,

determine a charge start time based on time when the connection of the external power source is identified,

determine a charge end time based on situation information related to the electronic device,

identify whether the voltage of the battery is smaller than a designated charge stop voltage when a difference between the charge start time and the charge end time satisfies a designated threshold, and

divide a period between the charge start time and the charge end time into a first charge section, a charge stop section and a second charge section based on the designated charge stop voltage when the voltage of the battery is smaller than the designated charge stop voltage and perform charging of the battery based on the divided period.

13. The electronic device of claim 12 , wherein the processor is further configured to:

divide the period between the charge start time and the charge end time into a charge stop section and a charge section when the voltage of the battery is greater than or equal to the designated charge stop voltage.

14. A method of controlling charging of an electronic device comprising a battery, the method comprising:

identifying whether an external power source for charging the battery is connected to the electronic device;

identifying a voltage of the battery when connection of the external power source is identified;

determining a charge start time based on time when the connection of the external power source is identified;

determining a charge end time based on situation information related to the electronic device;

determining a charge stop time of the battery based on the charge start time, the charge end time and the voltage of the battery when a difference between the charge start time and the charge end time satisfies a designated threshold; and

dividing a period between the charge start time and the charge end time into a first charge section, a charge stop section and a second charge section based on the charge stop time and performing charging of the battery based on the divided period.

15. The method of claim 14 , further comprising:

charging the battery in a first designated mode in the first charge section; and

charging the battery in a second designated mode in the second charge section,

wherein charge power in the first designated mode is higher than charge power in the second designated mode.

16. The method of claim 15 , further comprising charging the battery with charge power in a third designated mode higher than or equal to the charge power in the first designated mode when the difference between the charge start time and the charge end time does not satisfy the designated threshold.

17. The method of claim 14 , further comprising:

dividing the first charge section into a plurality of sections, and

charging the battery in modes respectively designated in the plurality of sections.

18. The method of claim 14 , further comprising blocking voltage or current supplied to the battery in the charge stop section.

19. The method of claim 15 , further comprising supplying voltage or current from the external power source in the charge stop section so that the battery maintains a constant voltage state in the charge stop section.

20. The method of claim 14 , further comprising:

blocking voltage or current supplied to the battery until the voltage of the battery reaches a designated critical voltage after the battery is charged up to a full charge voltage, and

charging the battery in a fourth designated mode when the voltage of the battery reaches the designated critical voltage.