System for estimating the state of health of a battery using liquid-phase diffusivity of lithium-ion parameters
AssigneeHyundai Motor Company
InventorWoo Suk Sung
Life of this patent
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Abstract
A method and system for estimating a state of health using battery model parameters are provided. The system includes a battery model parameter extractor that is configured to extract liquid-phase diffusivity of Li-ion parameters and a storage unit that is configured to store a mapping table in which states of health (SOH) for each liquid-phase diffusivity of Li-ion parameter are mapped. In addition, a SOH estimator is configured to use the mapping table to estimate the SOH that corresponds to a liquid-phase diffusivity of Li-ion extracted from the battery model parameter extractor.
Claims4
A system for estimating a state of health (SOH) using battery model parameters, comprising:
- a battery model parameter extractor configured to extract liquid-phase diffusivity of lithium ion (Li-ion) parameters;
- a storage unit configured to store a mapping table including the SOH of a battery which are mapped to each liquid-phase diffusivity of Li-ion parameter value;
- and
- a SOH estimator configured to estimate the SOH that corresponds to liquid-phase diffusivity of Li-ion in a liquid electrolyte extracted from the battery model parameter extractor, using the mapping table in the storage unit.
Dependencies are inferred from the claim text.