SMART CHARGING METHOD

• US 20180145515A1
• Filed: 04/03/2017
• Published: 05/24/2018
• Est. Priority Date: 11/18/2016
• Status: Abandoned Application

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: CHENG, Cheng-Hung, LIU, Yi-Hua
• Application Number:
  US15/477,785
• Publication Number:
  US 20180145515A1
• Time in Patent Office: Days
• CPC Class Codes: G01R 31/3835 involving only voltage measurements
• CPC Class Codes: H02J 7/007 Regulation of charging or discharging current or voltage
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage

Abstract

A smart charging method is provided. The smart charging method includes the following steps: A battery is charged under a constant charging current. Whether a measured voltage is higher than a predetermined voltage value is determined. If the measured voltage is higher than the predetermined voltage value, then the constant charging current is increased.

Claims

1. A smart charging method, comprising:

charging a battery under a constant charging current;

determining whether a measured voltage of the battery is higher than a predetermined voltage value; and

increasing the constant charging current if the measured voltage is higher than the predetermined voltage value.

2. The smart charging method according to claim 1, wherein in the step of increasing the constant charging current, the constant charging current is added to a predetermined increment.

3. The smart charging method according to claim 1, wherein in the step of increasing the constant charging current, the constant charging current is multiplied by a predetermined magnification.

4. The smart charging method according to claim 1, wherein the step of increasing the constant charging current is performed every predetermined time interval.

5. The smart charging method according to claim 1, further comprising:

determining whether the measured voltage is higher than a threshold voltage value; and

charging the battery under a constant charging voltage if the measured voltage is higher than the threshold voltage value.

6. The smart charging method according to claim 1, further comprising:

determining whether a measured current is lower than a threshold current value; and

stopping charging the battery if the measured current is lower than the threshold current value.

7. The smart charging method according to claim 1, wherein the battery is an aluminum ion battery.

8. A smart charging method, comprising:

charging a battery under a constant charging current;

determining whether a measured voltage gradient of the battery is lower than a predetermined voltage gradient; and

increasing the constant charging current if the measured voltage gradient is lower than the predetermined voltage gradient.

9. The smart charging method according to claim 8, wherein in the step of increasing the constant charging current, the constant charging current is added to a predetermined increment.

10. The smart charging method according to claim 8, wherein in the step of increasing the constant charging current, the constant charging current is multiplied by a predetermined magnification.

11. The smart charging method according to claim 8, wherein the step of determining whether the measured voltage gradient is lower than the predetermined voltage gradient is performed every predetermined time interval.

12. The smart charging method according to claim 8, further comprising:

determining whether a measured voltage of the battery is higher than a threshold voltage value; and

charging the battery under a constant charging voltage if the measured voltage is higher than the threshold voltage value.

13. The smart charging method according to claim 8, further comprising:

determining whether a measured current is lower than a threshold current value; and

stopping charging the battery if the measured current is lower than the threshold current value.

14. The smart charging method according to claim 8, wherein the battery is an aluminum ion battery.

15. A smart charging method, comprising:

charging a battery under a constant charging current;

determining whether a measured voltage gradient of the battery is reduced; and

increasing the constant charging current if the measured voltage gradient is reduced.

16. The smart charging method according to claim 15, wherein in step of increasing the constant charging current, the constant charging current is added to a predetermined increment.

17. The smart charging method according to claim 15, in the step of increasing the constant charging current, the constant charging current is multiplied by a predetermined magnification.

18. The smart charging method according to claim 15, wherein the step of determining whether the measured voltage gradient is reduced is performed every predetermined time interval.

19. The smart charging method according to claim 15, further comprising:

determining whether a measured voltage of the battery is higher than a threshold voltage value; and

charging the battery under a constant charging voltage if the measured voltage is higher than the threshold voltage value.

20. The smart charging method according to claim 15, further comprising:

determining whether a measured current is lower than a threshold current value; and

stopping charging the battery if the measured current is lower than the threshold current value.

21. The smart charging method according to claim 15, wherein the battery is an aluminum ion battery.