non-destructive testing method for capacity consistency of lithium-ion battery pack based on 1-D magnetic ... was first proposed and a pack model with 96 cells connected in series was established ...
DOI: 10.1016/J.APENERGY.2017.05.176 Corpus ID: 114113510; Study on battery pack consistency evolutions and equilibrium diagnosis for serial- connected lithium-ion batteries @article{Zhang2017StudyOB, title={Study on battery pack consistency evolutions and equilibrium diagnosis for serial- connected lithium-ion batteries}, author={Caiping Zhang and Yan Jiang …
This method can quickly describe the battery pack consistency problem, and can be applied during the normal charging process of the battery pack. During the whole life of the battery pack, the battery consistency can be determined in real time, which has certain practical value for the utilization and accurate management of the battery pack.
Semantic Scholar extracted view of "Evaluation method for consistency of lithium-ion battery packs in electric vehicles based on the Mahalanobis-Taguchi system" by A. F. Li et al. ... Multi-fault diagnosis for series-connected lithium-ion battery pack with reconstruction-based contribution based on parallel PCA-KPCA.
This paper outlines a new simulation approach to study the effect of factors on the state of charge (SOC) consistency of Li-ion battery packs. The proposed method is based on a system model …
DOI: 10.1016/j.jclepro.2020.120277 Corpus ID: 213338368 Internal short circuit detection for lithium-ion battery pack with parallel-series hybrid connections @article{Yue2020InternalSC, title={Internal short circuit detection for lithium-ion battery pack with parallel-series hybrid connections}, author={Pan Yue and Xuning Feng and Zhang Mingxuan and Xuebing Han and …
1. What is lithium battery consistency The consistency of lithium batteries refers to the convergence of important characteristic parameters of a group of lithium batteries. It is a relative concept. For multiple cells in the same lithium ion battery pack, it is best for each parameter to be within a smaller range for better consistency.
The primary challenge to the commercialization of any electric vehicle is the performance management of the battery pack. The performance of the battery module is influenced by the resistance of the inter-cell connecting plates (ICCP) and the position of the battery module posts (BMP). This study investigates the impact of different connection …
As an effective way to solve the problem of air pollution, lithium-ion batteries are widely used in electric vehicles (EVs) and energy storage systems (EESs) in the recent years [1] the real applications, several hundreds of battery cells are connected in series to form a battery pack in order to meet the voltage and power requirements [2].The aging of battery cells …
In practical application, single-cell is unable to satisfy the voltage, current and energy requirements for EV. Hundreds or thousands of individual cells need to be connected in series/parallel configuration to construct battery packs in order to provide sufficient voltage, current, power and energy for EV [7, 8].Unfortunately, cell differences always exist and are …
Semantic Scholar extracted view of "Evaluation method for consistency of lithium-ion battery packs in electric vehicles based on the Mahalanobis-Taguchi system" by A. F. Li et al. DOI: 10.1016/j.est.2023.110045 Corpus ID: 266243523 Evaluation method for ...
Ouyang M, Zhang M, Feng X, et al. Internal short circuit detection for battery pack using equivalent parameter and consistency method. J Power Sources, 2015, 294: 272–283 ... Electrically propelled road vehicles-test specification for lithium-ion traction battery packs and systems—Part 2: High energy application. ISO/WD 12405-2. Download ...
By simulating a 10-series 10-parallel battery pack, the influence of the temperature distribution in the battery pack on its performance and cycle life is clarified. ... Lithium-ion battery consistency refers to the consistency of the initial performance indicators of a group of single cells, including: capacity, impedance, electrical ...
The battery pack is composed of thousands of 18 650 cells, which are grouped in parallel and then in series. The specific parameters of a single 18 650 cell are shown in Table 4. Multiple 18 650 cells are first connected in parallel to form a big cell. The big cells are then connected in series to form a battery pack.
Consistency evaluation and cluster analysis for lithium-ion battery pack in electric vehicles Jiaqiang Tian, Yujie Wang, Chang Liu, Zonghai Chen * Department of Automation, University of Science and Technology of China, Hefei, Anhui, 230027, PR …
This paper mainly studies the impact of internal resistance on the consistency of Lithium-ion batteries. The results shown that the inconsistent internal resistance of the cells forming the series-connected battery pack will reduce the performance of battery pack, and the higher initial internal resistance difference, the worse the consistency of cells of the series …
In this paper, a consistency diagnosis method based on charging curve transformation is utilized to diagnose capacity and SOC differences within the battery pack. Since traditional curve …
Another aspect of battery pack consistency is the correlation between parameters because these parameters are always coupled [18]. ... Cycle life analysis of series connected lithium-ion batteries with temperature difference J Power Sources, 263 (2014), pp. 75 ...
Battery packs are applied in various areas (e.g., electric vehicles, energy storage, space, mining, etc.), which requires the state of health (SOH) to be accurately estimated. Inconsistency, also known as cell variation, is …
A lithium iron phosphate battery (LiFePO4) pack is one of the main power resources for electric vehicles and the non-uniformity of cells in the battery pack has become the bottleneck to improve ...
The proposed battery pack consistency modeling and EUE estimation method is verified based on the test results of a retired lithium-ion battery pack with 95 in-series …
Consistency is an essential factor affecting the operation of lithium-ion battery packs. Pack consistency evaluation is of considerable significance to the usage of batteries. Many existing methods are limited for ... Ref. [23], a battery pack with 12 series 1 parallel is constructed for equalization test. In the case of unbalance, due to the ...
Lithium ion batteries (LIBs) have to be integrated into modules and packs for large-scale applications such as electric vehicles (EVs) and stationary energy storage systems 1,2,3,4,5,6,7.However ...
The resistance of different wires in the same group are filtered to guarantee consistency. Table 5 lists the resistances of the wires, as tested by a DC resistance meter. Download ... Micro-short-circuit diagnosis for series-connected lithium-ion battery packs using mean-difference model. IEEE Trans. Ind. Electron., 66 (2019), pp. 2132-2142, 10
Gao et al. [13] presented a micro-short-circuit diagnostic method for the lithium-ion battery pack in series based on the mean-difference model and EKF. The capacity difference between cells was estimated. The short circuit current and resistance were accurately calculated by employing recursive least squares (RLS).
Online detection of early stage internal short circuits in series-connected lithium-ion battery packs based on state-of-charge correlation. Author links open overlay panel Xin Lai a b, Wei Yi a, Xiangdong Kong a, ... Moreover, the proposed method can be used to evaluate the consistency among cells in a LIB pack. 1.3. Organization of this paper.
To improve the accuracy of pack SOC estimation while reducing the computational complexity, this paper combines clustering algorithm and mean-difference (M-D) …
Zhang, Y.: Research on life of ternary lithium battery pack based on inconsistency. Mechanical and Electrical Technology (01), 45–48+81 (2019). (in Chinese) Google Scholar Wang, H-W., et al., Impact of internal resistance on the consistency of
Robust estimation of the state of charge (SOC) is crucial for providing the driver with an accurate indication of the remaining range. This paper presents the state of art of …
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS Impact of initial open-circuited potential on the consistency of lithium ion battery To cite this article: Hongwei Wang et al 2018 IOP Conf. Ser.: Earth Environ. Sci. 153 022023 View
State of charge (SOC) estimation of power battery pack is critical for electric vehicles (EVs). During the service life of electric vehicles, the consistency of power pack changes due to manufacturing errors and different usage environments, which in turn affects the accuracy of battery pack SOC estimation. To improve the accuracy of pack SOC estimation while …
The OCV consistency model of the battery pack is proposed. The mapping between OCV and SOC distribution of the battery pack is established. article info Article history: Received 16 February 2017 Received in revised form 23 May 2017 Accepted 26 May 2017 Available online xxxx Keywords: Lithium-ion battery Battery pack consistency Sensitivity ...
The inconsistency of the lithium-ion battery pack or the discrete phenomenon of the battery pack refers to the voltage, charge capacity, capacity, decay rate, internal resistance and its rate of change over time, life, and temperature of the single battery of the same
When the entire battery pack is charged, D reaches the charging cut-off voltage first, and the battery pack stops charging. Therefore, cell consistency is not a matter within a module that is welded together, but is a requirement for all batteries. 5. What problems will occur if the lithium battery packs are inconsistent
Adaptive state of charge estimator for lithium-ion cells series battery pack in electric vehicles J. Power Sources, 242 (2013), pp. 699-713 View PDF View article View in Scopus Google ...
In new energy storage applications, lithium-ion batteries are usually used in parallel and series connections to meet the power and energy requirements. However, the inevitable capacity and state of charge (SOC) inconsistency within the series battery pack can decrease the available capacity and result in accelerated aging and safety issues. In this paper, a consistency …
The new graphical diagram presents the dynamics of cell variations in a linear way, thereby benefiting the design and management of battery pack, including (1) quantifying the cell variations by region, (2) …
Lithium-ion batteries (LIBs) are widely used in electric vehicles (EVs). The internal resistance consistency is essential to the performance and safety of LIB packs. To detect the consistency of the LIB cell efficiently, an approach using the unbalanced current is proposed. First, a simple bridging circuit model with four LIB cells is built based on the first-order Thevenin equivalent …
The battery pack consists of 95 series-connected battery cells, and the EUE is 62.56 % at 0.1C discharge rate. So we need to take into account the impact of inconsistency when modeling a battery pack. In the next section, we will build an accurate battery pack consistency model step by step based on the actual measured battery parameters.
Lithium Battery Consistency And Sorting Method 1 nsistency of lithium batteries definition. At present, it refers to the convergence of a group of important characteristic parameters of lithium batteries. ... This parallel battery pack has become the bottleneck of the discharge capacity of the entire battery pack. 2.2 Series connection situation.
Compared with the voltage curve similarity method, the method proposed in this paper can more accurately evaluate the consistency of the battery pack, and the estimation …
