HEATED ACCELERATED BATTERY CHARGING

• US 20140333267A1
• Filed: 05/12/2014
• Published: 11/13/2014
• Est. Priority Date: 05/10/2013
• Status: Abandoned Application

• Current Assignee: Semiconductor Components Industries LLC (ON Semiconductor Corporation)
• Original Assignee: Fairchild Semiconductor Corporation (ON Semiconductor Corporation)
• Inventors: Crawley, Philip J.
• Application Number:
  US14/275,510
• Publication Number:
  US 20140333267A1
• Time in Patent Office: Days
• US Class Current: 320/150
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H01M 10/615 Heating or keeping warm
• CPC Class Codes: H01M 10/63 Control systems charging or discharging in response to temperature H01M10/44 , H01M10/443; measurement of temperature H01M10/48 , H01M10/486
• CPC Class Codes: H01M 10/6571 Resistive heaters arrangements for heating the battery by its resistance to the internal current H01M10/637
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

This document discusses, among other things, a temperature measurement component configured to receive temperature information from a battery, a heater configured to provide heat to the battery, and a controller configured to enable and disable the heater using information from the temperature measurement component to optimize charge efficiency and capacity of the battery.

Claims

1. An apparatus comprising:

a temperature measurement component configured to receive temperature information from a battery;

a heater configured to provide heat to the battery; and

a controller configured to enable and disable the heater using information from the temperature measurement component.

2. The apparatus of claim 1, wherein the temperature measurement component is coupled to an exterior housing of the battery and is configured to detect temperature information on the exterior housing of the battery.

3. The apparatus of claim 2, wherein the temperature measurement component is coupled to an anode of the battery and is configured to detect temperature information at the anode of the battery.

4. The apparatus of claim 1, wherein the temperature measurement component includes a thermistor.

5. The apparatus of claim 1, wherein the controller is configured to receive temperature information from the temperature measurement component and to estimate battery temperature using the received temperature information and a characteristic of the battery.

6. The apparatus of claim 1, wherein the heater is coupled to an exterior housing of the battery.

7. The apparatus of claim 6, wherein the heater is coupled to an anode of the battery.

8. The apparatus of claim 6, wherein the heater includes a thin film heater, and

wherein the temperature measurement component is integrated with the heater.

9. The apparatus of claim 1, including:

a battery charger configured to charge the battery and to provide power to the heater,

wherein the controller is configured to control the heater to maintain a specified temperature range in the battery during charging of the battery.

10. The apparatus of claim 9, wherein the specified temperature range includes between 25°

C. and 35°

C. to maintain a specified battery charging efficiency while minimizing solid electrolyte interphase (SEI) growth.

11. A method comprising:

receiving temperature information from a battery using a temperature measurement component;

providing heat to the battery using a heater; and

enabling and disabling the heater using information from the temperature measurement component.

12. The method of claim 11, wherein receiving temperature information from the battery includes receiving temperature information from an exterior housing of the battery using a temperature measurement component coupled to the exterior housing of the battery.

13. The method of claim 12, wherein receiving temperature information from the battery includes receiving temperature information from an anode of the battery using a temperature measurement component coupled to the anode of the battery.

14. The method of claim 11, including:

estimating battery temperature using the received temperature information and a characteristic of the battery; and

enabling and disabling the heater using the estimated battery temperature.

15. The method of claim 11, wherein the heater is coupled to an exterior housing of the battery.

16. The method of claim 15, wherein the heater includes a thin film heater, and

wherein the temperature measurement component is integrated with the heater.

17. The method of claim 11, including:

charging the battery and providing power to the heater using a battery charger; and

controlling the heater to maintain a specified temperature range in the battery during charging of the battery.

18. The method of claim 17, wherein the specified temperature range includes between 25°

C. and 35°

C., and

wherein controlling the heater includes to maintain a specified battery charging efficiency while minimizing solid electrolyte interphase (SEI) growth.

19. The method of claim 17, including enabling the heater only during charging of the battery.

20. A system comprising:

a mobile device including a battery;

a temperature measurement component coupled to an exterior housing of the battery, the temperature measurement component configured to receive temperature information from the battery;

a heater coupled to the exterior housing of the battery, the heater configured to provide heat to the battery;

a controller configured to enable and disable the heater using information from the temperature measurement component;

a battery charger configured to charge the battery and to provide power to the heater,

wherein the controller is configured to control the heater during charging of the battery to maintain a specified temperature range in the battery during charging,

wherein the specified temperature range includes between 25°

C. and 35°

C. to maintain a specified battery charging efficiency while minimizing solid electrolyte interphase (SEI) growth.