US 12,451,720 B2
Hybrid capacitor energy storage
John Raymond Curran, LaFox, IL (US); and Brian Christopher Gumino, LaFox, IL (US)
Assigned to Richardson Electronics, Ltd., LaFox, IL (US)
Filed by Richardson Electronics, Ltd., LaFox, IL (US)
Filed on May 10, 2023, as Appl. No. 18/315,133.
Prior Publication US 2024/0380236 A1, Nov. 14, 2024
Int. Cl. H02J 7/34 (2006.01); H01G 11/06 (2013.01); H01G 11/10 (2013.01); H02J 7/00 (2006.01); H02M 1/42 (2007.01); H02M 3/335 (2006.01); H02M 7/5387 (2007.01); H05K 7/20 (2006.01)
CPC H02J 7/345 (2013.01) [H01G 11/06 (2013.01); H01G 11/10 (2013.01); H02J 7/0013 (2013.01); H02J 7/0029 (2013.01); H02M 1/4208 (2013.01); H02M 3/33569 (2013.01); H05K 7/20909 (2013.01); H02J 2207/20 (2020.01); H02J 2207/50 (2020.01); H02M 7/53871 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An energy storage system comprising:
an energy storage system housing;
a plurality of lithium-ion hybrid ultracapacitors disposed in the energy storage system housing;
a battery management system coupled to the plurality of lithium-ion hybrid ultracapacitors and operable to selectively access a portion of the plurality of lithium-ion hybrid ultracapacitors based at least in part on a measured parameter of the plurality of lithium-ion hybrid ultracapacitors,
wherein, in response to an overcurrent, the battery management system is configured to cause a logging of an event associated with the overcurrent into a memory associated with the battery management system, the logging of the event for predicting an end of life of the plurality of lithium-ion hybrid ultracapacitors,
wherein if alternating current (AC) power is unavailable and a voltage of the plurality of lithium-ion hybrid ultracapacitors is above a predetermined voltage threshold, direct current (DC) power is provided from the plurality of lithium-ion hybrid ultracapacitors,
wherein the battery management system and the plurality of lithium-ion hybrid ultracapacitors are operable to be placed into a hibernation state responsive to the energy storage system having a charge below a minimum charge threshold, and
wherein the battery management system and the plurality of lithium-ion hybrid ultracapacitors are further operable to be activated out of the hibernation state responsive to the plurality of lithium-ion hybrid ultracapacitors having charge above the minimum charge threshold; and
a charger electrically coupled to the plurality of lithium-ion hybrid ultracapacitors to thereby charge the plurality of lithium-ion hybrid ultracapacitors.