Jan 15, 2022 · The prognostics of the state of health (SOH) for lithium-ion battery packs in the long-time scale is critical for the safe and efficient operation of battery packs. In this paper,
Jun 9, 2023 · The grouping and large-scale of battery energy storage systems lead to the problem of inconsistency. Practical consistency evaluation is significant for the management,
Mar 15, 2025 · For example, in large-scale energy storage stations, these methods can be used to monitor and manage the consistency of battery packs to ensure the reliability and efficiency of
May 27, 2018 · The consistency tests of power Li-ion batteries which were good capacity, internal resistance consistency, and initial open-circuited potential were researched. The results
Dec 20, 2023 · With the state of charge (SOC) of the battery as the equalization variable, and the equalization control strategy is designed based on the consistency controller and PI controller
Oct 15, 2023 · The temperature distribution effect on the battery pack''s consistency was investigated. Different circuits were established through various series–parallel topologies, and
Dec 20, 2024 · Consistency is the main indicator for evaluating battery pack performance, and its characterization method needs to be able to express the external discharge capability of the
Aug 8, 2019 · A method to evaluate the consistency of battery packs was proposed in this article. With such evaluation, the administrator of the energy storage system could understand the
Mar 1, 2020 · Abstract Consistency is an essential factor affecting the operation of lithium-ion battery packs. Pack consistency evaluation is of considerable significance to the usage of
Feb 14, 2025 · Battery cell consistency is vital for ensuring that battery packs perform optimally, last longer, and remain safe to use. Whether in electric vehicles, renewable energy storage, or
Aug 1, 2022 · Micro-faults in Li-ion batteries are a safety hazard for battery packs, and accurately identifying micro-faulted batteries is a complex problem to solve. In this paper, we propose a
Oct 4, 2024 · Lithium-ion battery energy storage systems (ESSs) occupy the majority share of cumulative installed capacity of new energy storage. Consistency of an ESS significantly
Apr 15, 2024 · Inconsistency is a crucial factor that affects the lithium-ion battery pack performance. Reliable cell inconsistency evaluation is essential for the efficient and safe usage
Dec 10, 2024 · • The proposed method uses the statistics of battery pack temperature and voltage as consistency indicators. • The proposed method is validated on both a real-world battery
Mar 1, 2020 · 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.
Oct 15, 2023 · The temperature distribution effect on the battery pack''s consistency was investigated. Different circuits were established through various series–parallel topologies, and
Abstract: The grouping and large-scale of battery energy storage systems lead to the problem of inconsistency. Practical consistency evaluation is significant for the management, equalization and maintenance of the battery system. Various evaluation methods have been developed over the past decades to better assess battery pack consistency.
Currently, the battery pack consistency evaluation indicators are unclear and are roughly divided into single-parameter and multi-parameter evaluations. Single-parameter evaluation usually uses voltage or SOC to characterize the consistency of the battery pack .
First, the capacity of each cell in the battery pack Qi, the difference in remaining chargeable capacity of each cell when the battery pack reaches the charge cutoff condition Qdi, and the internal resistance of each cell Ri are determined to accurately characterize the battery pack consistency.
Consistency is the main indicator for evaluating battery pack performance, and its characterization method needs to be able to express the external discharge capability of the battery pack and truly describe its current state without changes in external factors. Single-factor indicators cannot fully describe the battery state.
The consistency evaluation method needs to be applicable to batteries with different aging paths and different health states. For subsequent error analysis and method verification, this paper uses 18,650 cells to perform 0.3C, 0.5C, 1C, 1.5C, and 2C cycle tests at 25 °C, 35 °C, and 45 °C to simulate batteries in different health states.
The battery pack inconsistency is affected by factors such as battery capacity, internal resistance, and self-discharge rate during use, resulting in differences in aging and SOC, causing secondary inconsistency . In recent years, many scholars have conducted extensive research on the inconsistency problem of lithium-ion battery packs.
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