Patent ID: 11901748
Assignee: ENEVATE CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A system comprising:
a plurality of lithium-ion cells; and
one or more circuits configured to:
assess state-of-charge (SOC) of the plurality of lithium-ion cells; and
control, based on the assessing of state-of-charge (SOC), the plurality of lithium-ion cells;
wherein one or more of the plurality of lithium-ion cells are silicon/lithium (Si/Li) cells;
wherein assessing the state-of-charge (SOC) comprises calculating the state-of-charge (SOC) using one or more state-of-charge (SOC) models that account for one or more characteristics that are associated with silicon/lithium (Si/Li) cells;
wherein the one or more characteristics comprise one or both of open circuit voltage (OCV) hysteresis and nonlinear time-dependent transition in the OCV during transitions between charge to discharge states; and
wherein the controlling is configured to equilibrate the state-of-charge (SOC) of the plurality of lithium-ion cells or to modify a state-of-charge (SOC) of an individual lithium-ion cell or groups of lithium-ion cells so that the plurality of lithium-ion cells as a whole has a balanced state-of-charge (SOC).