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US 12,451,720 B2Granted
Hybrid capacitor energy storage
AssigneeRichardson Electronics, Ltd.
InventorsJohn Raymond Curran, Brian Christopher Gumino
Life of this patent
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Abstract
Systems, methods, and devices including a plurality of hybrid capacitors for storing energy as both electrical potential and chemical potential. An energy storage bank comprising the plurality of hybrid capacitors is coupled to a battery management system configured to monitor parameters of the plurality of hybrid capacitors and selectively access at least a portion of the plurality of hybrid capacitors to provide electrical power output.
Claims20
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.
6 more elements
An energy storage bank comprising:
- a plurality of energy storage cells electrically connected in series, each energy storage cell of the plurality of energy storage cells comprising:
- a plurality of lithium-ion hybrid ultracapacitors electrically connected in parallel;
- and
- a plurality of electrical connections that couples the plurality of energy storage cells to a battery management system that is operable to selectively access a portion of the plurality of energy storage cells based at least in part on a measured parameter of the plurality of energy storage cells;
- and
- wherein the plurality of energy storage cells is electrically coupled to a charger to thereby charge the plurality of lithium-ion hybrid ultracapacitors,
- wherein, in response to an overcurrent, the energy storage bank 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 energy storage bank is above a predetermined voltage threshold, direct current (DC) power is provided from the energy storage bank,
- wherein the battery management system and the energy storage bank are operable to enter a hibernation state responsive to the battery management system detecting that a charge of the plurality of energy storage cells below a minimum charge threshold, and
- wherein the battery management system and the energy storage bank are operable to be activated out of the hibernation state responsive to the battery management system detecting that the charge of the plurality of energy storage cells above the minimum charge threshold.
7 more elements
An energy storage system comprising:
- an energy storage system housing;
- an energy storage bank disposed in the energy storage system housing, the energy storage bank comprising a plurality of energy storage cells, each energy storage cell of the plurality of energy storage cells comprising:
- a plurality of lithium-ion hybrid ultracapacitors;
- a battery management system disposed on or in the energy storage system housing and 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 the battery management system and the energy storage bank are operable to be placed into a hibernation state responsive to the energy storage bank having a charge below a minimum charge threshold, and
- wherein the battery management system and the energy storage bank are further operable to be activated out of the hibernation state responsive to the energy storage bank having charge above the minimum charge threshold;
- a charger electrically coupled to the plurality of lithium-ion hybrid ultracapacitors to thereby charge the plurality of lithium-ion hybrid ultracapacitors;
- and
- a power factor correction component that converts alternating current power to direct current power within the energy storage system.
7 more elements
Dependencies are inferred from the claim text.