Battery pack with integrated battery management system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-002/00
H01M-010/42
H01M-010/0525
출원번호
US-0851482
(2015-09-11)
등록번호
US-9923247
(2018-03-20)
발명자
/ 주소
Beaston, Virgil Lee
Nystrom, Patrick Joseph
Emmons, Patten Atwood
출원인 / 주소
Powin Energy Corporation
대리인 / 주소
Sterne, Kessler, Goldstein & Fox P.L.L.C.
인용정보
피인용 횟수 :
3인용 특허 :
10
초록▼
Embodiments disclosed herein relate to a battery pack that may be used in an battery energy storage system. In an embodiment, the battery pack may include an integrated battery management system (BMS) having isolated, distributed, daisy-chained battery module controllers. The daisy-chained battery m
Embodiments disclosed herein relate to a battery pack that may be used in an battery energy storage system. In an embodiment, the battery pack may include an integrated battery management system (BMS) having isolated, distributed, daisy-chained battery module controllers. The daisy-chained battery module controllers may be coupled to a battery pack controller, which may charge and/or discharge the battery pack using the battery modules controllers and a balancing charger.
대표청구항▼
1. A battery pack comprising: a plurality of battery modules;a balancing charger configured to add energy to the plurality of battery modules; anda battery pack controller coupled to a plurality of daisy-chained battery module controllers to form a communication network,wherein each of the plurality
1. A battery pack comprising: a plurality of battery modules;a balancing charger configured to add energy to the plurality of battery modules; anda battery pack controller coupled to a plurality of daisy-chained battery module controllers to form a communication network,wherein each of the plurality of daisy-chained battery module controllers is mounted on one of the plurality of battery modules and is configured to remove energy from the battery module it is mounted on, and wherein each of the plurality of daisy-chained battery module controllers comprises: a first terminal coupled to a positive terminal of the battery module that the battery module controller is mounted on;a second terminal coupled to a negative terminal of the battery module that the battery module controller is mounted on; anda shunt resistor configured to be selectively applied across the first and second terminals to discharge energy of the battery module that the battery module controller is mounted on. 2. The battery pack of claim 1, wherein each of the plurality of daisy-chained battery module controllers further comprises a processor that is configured to measure a voltage of the battery module it is mounted on, and report the measured voltage to the battery pack controller. 3. The battery pack of claim 1, wherein each of the plurality of daisy-chained battery module controllers further comprises a processor that is configured to measure a temperature of the battery module it is mounted on, and report the measured temperature to the battery pack controller. 4. The battery pack of claim 1, wherein each of the plurality of daisy-chained battery module controllers further comprises: a polarity protection circuit configured to protect the battery module controller in response to the first and second terminals being coupled to the negative and positive terminals of the battery module, respectively. 5. The battery pack of claim 1, wherein each of the plurality of daisy-chained battery module controllers further comprises: a fail-safe circuit configured to prevent the shunt resistor from discharging the battery module that the battery module controller is mounted on below a threshold energy level. 6. The battery pack of claim 1, wherein each of the plurality of daisy-chained battery module controllers further comprises: an isolation circuit configured to electrically isolate the battery module controller from the other components coupled to the battery module controller. 7. The battery pack of claim 1, wherein each of the plurality of battery modules comprises a plurality of battery cells. 8. The battery pack of claim 7, wherein the plurality of battery cells are cylindrical cells, prismatic cells, or pouch cells. 9. The battery pack of claim 8, wherein the plurality of battery cells are 18650 lithium-ion cells. 10. A battery pack comprising: a plurality of battery modules;a balancing charger configured to add energy to the plurality of battery modules; anda battery pack controller coupled to a plurality of daisy-chained battery module controllers to form a communication network,wherein each of the plurality of daisy-chained battery module controllers is mounted on one of the plurality of battery modules and comprises: a shunt resistor configured to discharge energy from the battery module that it is mounted on;a processor configured to instruct the shunt resistor to discharge energy from the battery module that it is mounted on; anda communication terminal configured to receive an instruction from the battery pack controller to discharge energy from the battery module that it is mounted on. 11. The battery pack of claim 10, wherein each of the plurality of daisy-chained battery module controllers comprises a unique address in the communication network. 12. The battery pack of claim 11, wherein each of the plurality of daisy-chained battery module controllers is configured to receive the message from the battery pack controller and to determine whether the message comprises its unique address. 13. The battery pack of claim 9, wherein the battery pack controller is configured to poll the plurality of daisy-chained battery module controllers for a voltage measurement and a temperature measurement of the battery module that the battery module controller is mounted on. 14. The battery pack of claim 13, wherein each of the plurality of battery module controllers is configured to measure a voltage and a temperature of the battery module it is mounted on, and to report the measured voltage and the measured temperature to the battery pack controller. 15. The battery pack of claim 10, wherein each of the plurality of daisy-chained battery module controllers further comprises: an isolation circuit configured to electrically isolate the battery module controller from the other components coupled to the battery module controller. 16. The battery pack of claim 10, wherein each of the plurality of daisy-chained battery module controllers further comprises: a fail-safe circuit disposed between the processor and the shunt switch and configured to prevent the shunt resistor from discharging the battery module that the battery module controller is mounted on below a threshold energy level. 17. The battery pack of claim 10, wherein each of the plurality of battery modules comprises a plurality of battery cells. 18. The battery pack of claim 17, wherein the plurality of battery cells are cylindrical cells, prismatic cells, or pouch cells. 19. The battery pack of claim 17, wherein the plurality of battery cells are 18650 lithium-ion cells.
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이 특허에 인용된 특허 (10)
Kamohara, Hideaki, Battery pack controller with specific battery voltage detection.
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Rouillard Jean,CAX ; Comte Christophe,CAX ; Hagen Ronald A. ; Knudson Orlin B. ; Morin Andre,CAX ; Ross Guy,CAX, Equalizer system and method for series connected energy storing devices.
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