Evaluation of the Electrochemical Characterizations of Lithium-Ion Battery (LIB) Slurry with 10-Parameter Electrical Equivalent Circuit (EEC)

2016 ◽  
Vol 164 (2) ◽  
pp. A8-A17 ◽  
Author(s):  
Zhilong Wang ◽  
Tong Zhao ◽  
Jiafeng Yao ◽  
Yusei Kishikawa ◽  
Masahiro Takei
Keyword(s):  
Lithium Ion Battery ◽  
Equivalent Circuit ◽  
Electrochemical Characterizations ◽  
Lithium Ion ◽  
Electrical Equivalent Circuit

scholarly journals Electrical Equivalent Circuit Models of Lithium-ion Battery

2021 ◽  
Author(s):  
Rushali R. Thakkar
Keyword(s):  
Lithium Ion Battery ◽  
Equivalent Circuit ◽  
System Performance ◽  
Lithium Ion ◽  
Equivalent Model ◽  
System Efficiency ◽  
Ideal Model ◽  
Electrical Equivalent Circuit ◽  
Systematic Comparison ◽  
Comparison And Analysis

Modelling helps us to understand the battery behaviour that will help to improve the system performance and increase the system efficiency. Battery can be modelled to describe the V-I Characteristics, charging status and battery’s capacity. It is therefore necessary to create an exact electrical equivalent model that will help to determine the battery efficiency. There are different electrical models which will be discussed and examined along with the benefits and demerits. A systematic comparison and analysis using simulation will help us to select an ideal model which will suit best to a specific application.

scholarly journals An Adaptive Estimation Scheme for Open-Circuit Voltage of Power Lithium-Ion Battery

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Yun Zhang ◽  
Chenghui Zhang ◽  
Naxin Cui
Keyword(s):  
Lithium Ion Battery ◽  
Equivalent Circuit ◽  
Open Circuit Voltage ◽  
Adaptive Estimation ◽  
Equivalent Circuit Model ◽  
Lithium Ion ◽  
Open Circuit ◽  
Adaptive Scheme ◽  
Power Battery ◽  
Estimation Scheme

Open-circuit voltage (OCV) is one of the most important parameters in determining state of charge (SoC) of power battery. The direct measurement of it is costly and time consuming. This paper describes an adaptive scheme that can be used to derive OCV of the power battery. The scheme only uses the measurable input (terminal current) and the measurable output (terminal voltage) signals of the battery system and is simple enough to enable online implement. Firstly an equivalent circuit model is employed to describe the polarization characteristic and the dynamic behavior of the lithium-ion battery; the state-space representation of the electrical performance for the battery is obtained based on the equivalent circuit model. Then the implementation procedure of the adaptive scheme is given; also the asymptotic convergence of the observer error and the boundedness of all the parameter estimates are proven. Finally, experiments are carried out, and the effectiveness of the adaptive estimation scheme is validated by the experimental results.

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