Charging techniques for solid-state batteries in portable electronic devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-007/00
H02J-007/14
H01M-010/44
H02J-007/04
출원번호
US-0947434
(2015-11-20)
등록번호
US-9553468
(2017-01-24)
발명자
/ 주소
Bhardwaj, Ramesh C.
출원인 / 주소
Apple Inc.
대리인 / 주소
Blank Rome LLP
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
The disclosed embodiments provide a system that manages use of a solid-state battery in a portable electronic device. During operation, the system monitors a temperature of the solid-state battery during use of the solid-state battery with the portable electronic device. Next, the system modifies a
The disclosed embodiments provide a system that manages use of a solid-state battery in a portable electronic device. During operation, the system monitors a temperature of the solid-state battery during use of the solid-state battery with the portable electronic device. Next, the system modifies a charging technique for the solid-state battery based on the monitored temperature to increase a capacity or a cycle life of the solid-state battery. To modify the charging technique based on the monitored temperature, the system may increase a charge rate of the solid-state battery if the temperature exceeds a first temperature threshold. On the other hand, the system may maintain the charge rate of the solid-state battery if the temperature does not exceed the first temperature threshold.
대표청구항▼
1. A computer-implemented method for managing charging of a solid-state battery in a portable electronic device, comprising: monitoring a temperature of a solid-state battery during charging of the solid-state battery; andmodifying a charge rate by increasing at least one of a charge current of the
1. A computer-implemented method for managing charging of a solid-state battery in a portable electronic device, comprising: monitoring a temperature of a solid-state battery during charging of the solid-state battery; andmodifying a charge rate by increasing at least one of a charge current of the solid-state battery and a charge voltage of the solid-state battery when the monitored temperature exceeds a first temperature threshold, wherein the first temperature threshold is in a range of 45 degrees Celsius and above. 2. The computer-implemented method of claim 1, further comprising modifying the charge rate when the monitored temperature exceeds a second temperature threshold, wherein the second temperature threshold is higher than the first temperature threshold, wherein the second temperature threshold is 60 degrees Celsius and above. 3. The computer-implemented method of claim 2, further comprising increasing the charge rate by 1.5 C when the monitored temperature exceeds the first temperature threshold and does not exceed the second temperature threshold. 4. The computer-implemented method of claim 2, further comprising modifying the charge rate by 3 C when the monitored temperature exceeds the second temperature threshold. 5. The computer-implemented method of claim 1, further comprising decreasing the charge rate by 0.5 C when the monitored temperature drops below the first temperature threshold. 6. A system for managing use of a solid-state battery in a portable electronic device, comprising: a monitoring apparatus configured to monitor a temperature of a solid-state battery during charging of the solid-state battery; anda management apparatus configured to modify a charge rate by increasing at least one of a charge current of the solid-state battery and a charge voltage of the solid-state battery when the monitored temperature exceeds a first temperature threshold, wherein the first temperature threshold is in a range of 45 degrees Celsius and above. 7. The system of claim 6, wherein the management apparatus is configured to modify the charge rate when the monitored temperature exceeds a second temperature threshold, wherein the second temperature threshold is higher than the first temperature threshold, wherein the second temperature threshold is 60 degrees Celsius. 8. The system of claim 7, wherein the management apparatus is configured to increase the charge rate by 1.5 C when the monitored temperature exceeds the first temperature threshold and does not exceed the second temperature threshold. 9. The system of claim 7, wherein the management apparatus is configured to modify the charge rate by 3 C when the monitored temperature exceeds the second temperature threshold. 10. The system of claim 6, wherein the management apparatus is configured to decrease the charge rate by 0.5 C when the monitored temperature drops below the first temperature threshold. 11. A non-transitory computer-readable storage medium, readable by a processor and comprising instructions stored thereon to cause the processor to: monitor a temperature of a solid-state battery during charging of the solid-state battery; andmodify a charge rate by increasing at least one of a charge current of the solid-state battery and a charge voltage of the solid-state battery when the monitored temperature exceeds a first temperature threshold, wherein the first temperature threshold is in a range of 45 degrees Celsius and above. 12. The non-transitory computer-readable storage medium of claim 11, wherein the instructions further comprise instructions to cause the processor to modify the charge rate when the monitored temperature exceeds a second temperature threshold, wherein the second temperature threshold is 60 degrees Celsius and above. 13. The non-transitory computer-readable storage medium of claim 12, wherein the instructions further comprise instructions to cause the processor to increase the charge rate by 1.5 C when the monitored temperature exceeds the first temperature threshold and does not exceed than the second temperature threshold. 14. The non-transitory computer-readable storage medium of claim 12, wherein the instructions further comprise instructions to cause the processor to modify the charge rate by 3 C when the monitored temperature exceeds the second temperature threshold. 15. The non-transitory computer-readable storage medium of claim 11, wherein the instructions further comprise instructions to cause the processor to decrease the charge rate by 0.5 C when the monitored temperature drops below the first temperature threshold. 16. A portable electronic device, comprising: a set of components powered by a solid-state battery;a monitoring apparatus programmed to monitor a temperature of the solid-state battery during charging of the solid-state battery; anda management apparatus programmed to modify a charge rate by increasing at least one of a charge current of the solid-state battery and a charge voltage of the solid-state battery when the monitored temperature exceeds a first temperature threshold, wherein the first temperature threshold is in a range of 45 degrees Celsius and above. 17. The portable electronic device of claim 16, wherein the management apparatus is configured to modify the charge rate when the monitored temperature exceeds a second temperature threshold, wherein the second temperature threshold is in a range of 60 degrees Celsius and above. 18. The portable electronic device of claim 17, wherein the management apparatus is configured to increase the charge rate by 1.5 C when the monitored temperature exceeds the first temperature threshold and does not exceed than the second temperature threshold. 19. The portable electronic device of claim 17, wherein the management apparatus is configured to modify the charge rate by 3 C when the monitored temperature exceeds the second temperature threshold. 20. The portable electronic device of claim 16, wherein the management apparatus is configured to decrease the charge rate by 0.5 C when the monitored temperature drops below the first temperature threshold.
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이 특허에 인용된 특허 (5)
Sakakibara, Kazuyuki, Battery chargers and charging methods.
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