IP Library › Granted Patent US 11,867,769
Granted Patent B2
US 11,867,769 · App. 17/432,084 · Granted Jan 9, 2024

Energy storage system

Inventor: Shijie Tong (San Diego, CA)
Assignee: The Regents of the University of California
G01R31/392H02J7/0069
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Quick Facts
Patent No.
US 11,867,769
App. No.
17/432,084
Granted
Jan 9, 2024
Kind
B2
Abstract

A system, a method, and a computer program product for providing heterogeneous unifying battery storage. A state-of-health value of a battery is determined. The state-of-health value of the battery is less than an original capacity value of the battery. The battery is connected to an electrical power source for re-conditioning. A target state-of-health value for the battery and a number of cycles required to achieve the target state-of-health value of the battery are determined. Each cycle in the number of cycles includes at least one of: a charging the battery and a discharging the battery. The battery is re-conditioned by cycling the battery using the determined number of cycles. Cycling includes drawing electrical power from the electrical power source.

Claims (50)

1. A method, comprising:

determining a state-of-health value of a battery used for a primary application, wherein the state-of-health value of the battery is less than an original capacity value of the battery, the battery being connected to an electrical power source for re-conditioning;

determining a target state-of-health value for the battery and a number of cycles required to achieve the target state-of-health value of the battery, each cycle in the number of cycles comprises at least one of: a charging the battery and a discharging the battery; and

re-conditioning the battery by cycling the battery using the number of cycles, wherein cycling comprises drawing electrical power from the electrical power source until a re-conditioned state-of-health value of the battery corresponding to a secondary application is reached.

2. The method according to claim 1 , wherein the battery comprises at least one of: a battery cell, a battery unit, a battery system, a battery brick, a battery brick group, and any combination thereof.

3. The method according to claim 1 , wherein the target state-of-health value for the battery is determined using a battery aging model generated based on one or more prior re-conditionings of a plurality of batteries.

4. The method according to claim 1 , wherein the re-conditioning comprises determining the re-conditioned state-of-health value of a battery after performing the re-conditioning.

5. The method according to claim 4 , further comprising

comparing the re-conditioned state-of-health value to the target state-of-health value of the battery;

repeating the re-conditioning of the battery upon determining that the re-conditioned state-of-health value does not equal to the target state-of-health value of the battery; and

disconnecting the battery from the electrical power source upon determining that the re-conditioned state-of-health value equals to the determined target state-of-health value of the battery.

6. The method according to claim 5 , further comprising

connecting another battery to the electrical power source for re-conditioning after disconnecting the battery; and

repeating the determining a state-of-health value, determining a target state-of-health value and a number of cycles, and the re-conditioning for the another battery.

7. The method according to claim 1 , wherein a plurality of batteries are connected to the electrical power source for re-conditioning, each battery in the plurality of batteries is individually connected to the electrical power source using a corresponding converter and a relay component.

8. The method according to claim 7 , wherein an amount of electrical power demand for the plurality of batteries is determined based on an individual amount of power demanded by each battery in the plurality of batteries for at least one of the determining the state-of-health value for the battery, the re-conditioning of the battery, and any combination thereof.

9. The method of claim 1 , wherein the primary application comprises a first operation within an electric vehicle and the secondary application comprises a second operation within any of household appliances, buildings, and electrical grids.

10. A system comprising:

at least one programmable processor; and

a non-transitory machine-readable medium storing instructions that, when executed by the at least one programmable processor, cause the at least one programmable processor to perform operations comprising:

determining a state-of-health value of a battery used for a primary application, wherein the state-of-health value of the battery is less than an original capacity value of the battery, the battery being connected to an electrical power source for re-conditioning;

determining a target state-of-health value for the battery and a number of cycles required to achieve the target state-of-health value of the battery, each cycle in the number of cycles comprises at least one of: a charging the battery and a discharging the battery; and

re-conditioning the battery by cycling the battery using the number of cycles, wherein cycling comprises drawing electrical power from the electrical power source until a re-conditioned state-of-health value of the battery corresponding to a secondary application is reached.

11. The system according to claim 10 , wherein the battery comprises at least one of: a battery cell, a battery unit, a battery system, a battery brick, a battery brick group, and any combination thereof.

12. The system according to claim 10 , wherein the target state-of-health value for the battery is determined using a battery aging model generated based on one or more prior re-conditionings of a plurality of batteries.

13. The system according to claim 10 , wherein the re-conditioning comprises determining the re-conditioned state-of-health value of a battery after performing the re-conditioning.

14. The system according to claim 13 , wherein the operations further comprise

comparing the re-conditioned state-of-health value to the target state-of-health value of the battery;

repeating the re-conditioning of the battery upon determining that the re-conditioned state-of-health value does not equal to the target state-of-health value of the battery; and

disconnecting the battery from the electrical power source upon determining that the re-conditioned state-of-health value equals to the target state-of-health value of the battery.

15. The system according to claim 14 , wherein the operations further comprise

connecting another battery to the electrical power source for re-conditioning after disconnecting the battery; and

repeating the determining a state-of-health value, determining a target state-of-health value and a number of cycles, and the re-conditioning for the another battery.

16. The system according to claim 10 , wherein a plurality of batteries are connected to the electrical power source for re-conditioning, each battery in the plurality of batteries is individually connected to the electrical power source using a corresponding converter and a relay component.

17. The system according to claim 16 , wherein an amount of electrical power demand for the plurality of batteries is determined based on an individual amount of power demanded by each battery in the plurality of batteries for at least one of the determining the state-of-health value for the battery, the re-conditioning of the battery, and any combination thereof.

18. A computer program product comprising a non-transitory machine-readable medium storing instructions that, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:

determining a state-of-health value of a battery used for a primary application, wherein the state-of-health value of the battery is less than an original capacity value of the battery, the battery being connected to an electrical power source for re-conditioning;

determining a target state-of-health value for the battery and a number of cycles required to achieve the target state-of-health value of the battery, each cycle in the number of cycles comprises at least one of: a charging the battery and a discharging the battery; and

re-conditioning the battery by cycling the battery using the number of cycles, wherein cycling comprises drawing electrical power from the electrical power source until a re-conditioned state-of-health value of the battery corresponding to a secondary application is reached.

19. The computer program product according to claim 18 , wherein the battery comprises at least one of: a battery cell, a battery unit, a battery system, a battery brick, a battery brick group, and any combination thereof.

20. The computer program product according to claim 18 , wherein the target state-of-health value for the battery is determined using a battery aging model generated based on one or more prior re-conditionings of a plurality of batteries;

wherein the re-conditioning comprises determining the re-conditioned state-of-health value of a battery after performing the re-conditioning.

21. The computer program product according to claim 17 , wherein the operations further comprise

comparing the re-conditioned state-of-health value to the target state-of-health value of the battery;

repeating the re-conditioning of the battery upon determining that the re-conditioned state-of-health value does not equal to the target state-of-health value of the battery;

disconnecting the battery from the electrical power source upon determining that the re-conditioned state-of-health value equals to the target state-of-health value of the battery;

connecting another battery to the electrical power source for re-conditioning after disconnecting the battery; and

repeating the determining a state-of-health value, determining a target state-of-health value and a number of cycles, and the re-conditioning for the another battery.

22. The computer program product according to claim 18 , wherein a plurality of batteries are connected to the electrical power source for re-conditioning, each battery in the plurality of batteries is individually connected to the electrical power source using a corresponding converter and a relay component;

wherein an amount of electrical power demand for the plurality of batteries is determined based on an individual amount of power demanded by each battery in the plurality of batteries for at least one of the determining the state-of-health value for the battery, the re-conditioning of the battery, and any combination thereof.

Assignments (2)
CONFIRMATORY LICENSE Recorded Mar 9, 2026
From: UNIVERSITY OF CALIFORNIA, SAN DIEGO
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 075089/0926 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2021
From: TONG, SHIJIE
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 057258/0373 →
Continuity (2)
Provisional Application 62808173 · Feb 20, 2019
Related Publication 20220196753A1 · Jun 23, 2022