Apparatus and method for charging battery based on temperature

1. An electronic device comprising:

a battery;

a temperature sensor;

a charging circuit configured to charge the battery;

a coil antenna; and

at least one processor configured to:

measure a temperature corresponding to at least a part of the electronic device by using the temperature sensor;

charge the battery depending on a first charging characteristic by using the charging circuit and supply a current to the coil antenna to allow the coil antenna to emit heat, when the temperature satisfies a first specified condition; and

charge the battery depending on a second charging characteristic by using the charging circuit, when the temperature satisfies a second specified condition, after the current is supplied,

wherein a temperature range of the first specified condition is lower than a temperature range of the second specified condition, and

wherein the second charging characteristic includes a charging power, a charging current, and a fully charged voltage higher than a charging power, a charging current, and a fully charged voltage of the first charging characteristic.

2. The electronic device of claim 1 , wherein the coil antenna includes:

a magnetic secure transmission (MST) antenna, a wireless charging antenna, or a near field communication (NFC) antenna.

3. The electronic device of claim 1 , further comprising:

a housing constituting at least a part of a first surface of the electronic device; and

a display constituting at least a part of a second surface facing a direction opposite to a direction of the first surface of the electronic device,

wherein the battery is disposed between the first surface and the second surface, and

wherein the coil antenna is disposed between the first surface and the second surface and overlaps with at least a partial region of the battery.

4. The electronic device of claim 1 , further comprising:

a power management circuit configured to supply the current to the coil antenna;

an antenna driving circuit configured to transmit or receive a signal through the coil antenna; and

a switch configured to selectively connect the coil antenna with the power management circuit or the antenna driving circuit,

wherein the at least one processor or the power management circuit is configured to:

connect the coil antenna with the power management circuit by using the switch, when the temperature satisfies the first specified condition.

5. The electronic device of claim 1 , wherein the at least one processor is further configured to:

emit heat by performing a specified operation, when the temperature satisfies the first specified condition.

6. The electronic device of claim 1 , further comprising:

a heating element including a coil, a resistor, a heat pipe, or a thermoelectric device,

wherein the at least one processor is further configured to:

allow the heating element to emit heat by supplying a current to the heating element, when the temperature satisfies the first specified condition.

7. The electronic device of claim 1 , further comprising:

a thermal diffusion sheet attached to the battery and configured to transfer heat, which is emitted from an outside of the battery, to the battery.

8. The electronic device of claim 1 , wherein the at least one processor is further configured to:

set a magnitude of a current used for the charging of the battery to a first magnitude as at least a part of the first charging characteristic; and

set the magnitude of the current used for the charging of the battery to a second magnitude greater than the first magnitude, as at least a part of the second charging characteristic.

9. The electronic device of claim 1 , wherein the at least one processor is further configured to:

reduce a magnitude of the current supplied to the coil antenna or stop supplying the current to the coil antenna, when the temperature satisfies a third specified condition, after the current is supplied.

10. The electronic device of claim 9 , wherein the at least one processor is further configured to:

increase the magnitude the current supplied to the coil antenna or resume supplying the current to the coil antenna, when the temperature satisfies a fourth specified condition, after reducing the current supplied to the coil antenna or stopping supplying the current to the coil antenna.

11. The electronic device of claim 1 , further comprising:

a connector configured to receive power from an external power source,

wherein the at least one processor is further configured to:

determine available power, except for power consumed to charge the battery, in the power received through the connector; and

supply the current to the coil antenna by using at least a portion of the available power.

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

measuring a temperature corresponding to at least a part of the electronic device by using a temperature sensor;

charging the battery depending on a first charging characteristic by using a charging circuit, when the temperature satisfies a first specified condition;

supplying a current to a coil antenna to allow the coil antenna to emit heat, when the temperature satisfies the first specified condition; and

charging the battery depending on a second charging characteristic by using the charging circuit, when the temperature satisfies a second specified condition, after the current is supplied,

wherein a temperature range of the first specified condition is lower than a temperature range of the second specified condition, and

wherein the second charging characteristic includes a charging power, a charging current, and a fully charged voltage higher than a charging power, a charging current, and a fully charged voltage of the first charging characteristic.

13. The method of claim 12 , wherein charging the battery depending on the first charging characteristic includes:

setting a magnitude of a current used for the charging of the battery to a first magnitude as at least a part of the first charging characteristic; and

wherein charging the battery based on the second charging characteristic includes:

setting the magnitude of the current used for the charging of the battery to a second magnitude greater than the first magnitude, as at least a part of the second charging characteristic.

14. The method of claim 12 , further comprising:

reducing the current supplied to the coil antenna or stopping supplying the current to the coil antenna, when the temperature satisfies a third specified condition, after the current is supplied.

15. The method of claim 14 , further comprising:

increasing a magnitude of the current supplied to the coil antenna or resuming supplying the current to the coil antenna, when the temperature satisfies a fourth specified condition, after reducing the magnitude of the current supplied to the coil antenna or stopping supplying the current to the coil antenna.

16. The method of claim 12 , wherein supplying the current to the coil antenna includes:

receiving power from an external power source through a connector;

determining available power, except for power consumed to charge the battery, in the power received through the connector; and

supplying the current to the coil antenna by using at least a portion of the available power.

17. An electronic device comprising:

a battery;

a temperature sensor;

a charging circuit;

a heating element; and

at least one processor configured to:

measure a temperature corresponding to at least a part of the electronic device by using the temperature sensor;

charge the battery depending on a first charging characteristic by using the charging circuit and supply a current to the heating element to allow the heating element to emit heat, when the temperature satisfies a first specified condition;

charge the battery depending on a second charging characteristic by using the charging circuit, when the temperature satisfies a second specified condition, after the current is supplied to the heating element; and

reduce a magnitude of the current supplied to the heating element or stop supplying the current to the heating element, when the temperature satisfies a third specified condition, after the current is supplied,

wherein a temperature range of the first specified condition is lower than a temperature range of the second specified condition, and

wherein the second charging characteristic includes a charging power, a charging current, and a fully charged voltage higher than a charging power, a charging current, and a fully charged voltage of the first charging characteristic.

18. The electronic device of claim 17 , wherein the heating element includes:

a coil antenna, a coil, a resistor, a heat pipe, a thermoelectric device, the processor, another processor different from the processor, or a combination of the coil antenna, the coil, the resistor, the heat pipe, the thermoelectric device, the processor, and the other processor.

19. The electronic device of claim 17 , wherein the at least one processor is further configured to:

set a magnitude of a current used for the charging of the battery to a first magnitude as at least a part of the first charging characteristic; and

set the magnitude of the current used for the charging of the battery to a second magnitude greater than the first magnitude, as at least a part of the second charging characteristic.

20. The electronic device of claim 17 , further comprising:

a connector configured to receive power from an external power source,

wherein the at least one processor is further configured to:

determine available power, except for power consumed to charge the battery, in the power received through the connector; and

supply the current to the heating element by using at least a portion of the available power.