Study on the dynamic impedance model and characteristic parameters of lithium ion battery for energy storage system
Xu Shouping, Hu Juan, Hou Chaoyong
State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, China Electric Power Research Institute Limited Company, Beijing 100192
In order to more accurately determine dynamic consistency of lithium ion battery, this paper using electrochemical impedance spectroscopy as a battery features and characteristics of bond, by ac impedance spectroscopy testing method to carry out to study the dynamic consistency of lithium ion batteries. In electrochemical impedance spectrum test experiment, the dynamic impedance model of lithium ion battery is identified based on the least square method and the experimental data. The test shows that the dynamic impedance model of lithium ion battery extracted by this method can meet the requirements of energy storage test well, and has high precision. It can be as a basis for the dynamic consistency judgment for lithium ion batteries pack.
许守平, 胡娟, 侯朝勇. 储能用锂离子电池动态阻抗模型及其特征参数研究[J]. 电气技术, 2018, 19(8): 90-94.
Xu Shouping, Hu Juan, Hou Chaoyong. Study on the dynamic impedance model and characteristic parameters of lithium ion battery for energy storage system. Electrical Engineering, 2018, 19(8): 90-94.
2018, Vol. 19 
