Li-ion battery electrode state of charge and degradation monitoring using battery casing as the reference electrode
Rahman, MD Ashikur
MetadataShow full item record
Lithium-ion battery (LIB) internal state such as state of charge (SOC), electrode capacity, and available lithium-ion monitoring is helpful for effective battery degradation monitoring. Monitoring these internal parameters is challenging due to the weak observability of the electrode parameters and lack of information about available lithium-ion contents in the cell. A reference electrode can be useful to measure the electrode potentials, which can provide information about the internal states, SOC, electrode capacity, and the available lithium-ions in the cell. In this thesis, we proposed a novel three-electrode battery setup approach using battery casing for electrode parameter estimation and degradation monitoring. The presented work introduces a curve matching algorithm to estimate electrode capacity, SOC, and available lithium-ion in the cell and an unknown input observer to estimate anode SOC and capacity. Further, electrode and cell degradation are analyzed by comparing the capacity. The proposed reference electrode setup has less impact on cell degradation compared to the existing reference electrode setup methods. In contrast, the proposed method is practically feasible regarding the practical application of three-electrode batteries for electrode level parameter estimation and available lithium-ion monitoring in the cell.
Showing items related by title, author, creator and subject.
Bondarenko, Daniel (2016-01-01)The current work investigates a method for generating plasmas without damaging electrodes. The primary objective is the creation of an electrode-less potential region (virtual cathode) through the use of electron emission ...
Findlay, Justin Earl (2009-04-01)A molten carbonate fuel cell (MCFC) is an electro-chemical energy conversion technology that runs on natural gas and employs a molten salt electrolyte. In order to keep the electrolyte in this state, the cell must be kept ...
Investigation of an alternative sulfonated silane in ceramic carbon electrodes for fuel cell applications Reid, O'Rian Omar (2015-09-01)The fabrication of an ideal electrode material for fuel cell application that can maintain an optimal water content in both low and high relative humidity (RH) conditions has been studied by many research groups. Previous ...