A Multi - Factor Weight Analysis Method of Lithiumion Batteries Based on Module Topology

Modular batteries can be widely used in energy storage scenarios, whose performance is deeply determined by cells' different electrical factors. Meanwhile, the effect of individual factors on the maximum capacity of the module varies with the topology of the module. In this paper, six kinds of...

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Bibliographic Details
Published in2018 International Conference on Sensing,Diagnostics, Prognostics, and Control (SDPC) pp. 61 - 66
Main Authors Hanyu Zou, Huamao Zhan, Zhong Zheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2018
Subjects
Batteries
Battery charge measurement
Discharges (electric)
inconsistency
lithium-ion battery module
module topology
orthogonal test
Resistance
Temperature measurement
Topology
Voltage measurement
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Summary:Modular batteries can be widely used in energy storage scenarios, whose performance is deeply determined by cells' different electrical factors. Meanwhile, the effect of individual factors on the maximum capacity of the module varies with the topology of the module. In this paper, six kinds of lithium-ion battery modules composed of six cells, which corresponded to six kinds of typical topologies, were subjected to three factors and two levels of orthogonal test. Then, the influence of battery cell's initial capacity, voltage and internal resistance on module discharge capacity was obtained. Finally, by multivariate linear regression, the impact weight of those electric factors was extracted, which was proved to be reliable by mathematical analysis. In order to study the effects of different factors on battery module, this paper conducted complete experimental design, parameter analysis, law validation and weight extraction process. The results can provide an effective solution for improving the discharge capacity of battery energy storage module.
DOI:10.1109/SDPC.2018.8664989