A5025733726- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Electric Vehicles and Infrastructure
- Advanced Battery Materials and Technologies
- Advanced DC-DC Converters
- Fault Detection and Control Systems
- Wireless Power Transfer Systems
- Microgrid Control and Optimization
- Modular Robots and Swarm Intelligence
- Machine Fault Diagnosis Techniques
- Surface Modification and Superhydrophobicity
- Dielectric materials and actuators
- Advancements in PLL and VCO Technologies
- Photopolymerization techniques and applications
- Adhesion, Friction, and Surface Interactions
- Urban Transport and Accessibility
- Advanced battery technologies research
- Transportation and Mobility Innovations
- Multilevel Inverters and Converters
- Maritime Transport Emissions and Efficiency
- Electrowetting and Microfluidic Technologies
- Synthesis and properties of polymers
- Electrical Fault Detection and Protection
- Epoxy Resin Curing Processes
- Microfluidic and Capillary Electrophoresis Applications
Chang'an University
2022-2024
Aalborg University
2019-2024
Fudan University
2024
Xi’an University
2023
United States Department of Energy
2019
Northwestern Polytechnical University
2017
Current pulses are convenient to be actively implemented by a battery management system. However, the short-term features (STF) from current originate various sensors with uneven qualities, which hinder one powerful and strong learner STF for state of health (SOH) estimation. This article, thus, proposes an optimized weak formulation procedure lithium-ion SOH estimation, further enables automatic initialization integration learners into efficient estimation framework. A Pareto front-based...
The pulsed current has been proposed as a promising battery charging technique to improve the performance and maximize lifetime for lithium-ion (Li-ion) batteries. However, effect of is inconclusive due changeable mode conditions. This article systematically investigates various modes, i.e., positive mode, current-constant negative alternating sinusoidal-ripple on performance. Moreover, comprehensive analysis frequency impact quality performed. modes in this work are evaluated considering...
Accurate estimation of the state-of-health (SOH) lithium-ion batteries is a crucial reference for energy management battery packs electric vehicles. It great significance in ensuring safe and reliable operation while reducing maintenance costs system. To eliminate nonlinear effects caused by factors such as capacity regeneration on SOH sequence improve prediction accuracy stability SOH, model based Variational Modal Decomposition (VMD) Dung Beetle Optimization -Support Vector Regression...
Abstract The key to advancing lithium‐ion battery (LIB) technology, particularly with respect the optimization of cycling protocols, is obtain comprehensive and in‐depth understanding dynamic electrochemical processes during operation. This work shows that pulse current (PC) charging substantially enhances cycle stability commercial LiNi 0.5 Mn 0.3 Co 0.2 O 2 (NMC532)/graphite LIBs. Electrochemical diagnosis unveils pulsed effectively mitigates rise impedance minimizes loss electrode...
Online parameter identification is vital for boosting the accuracy of battery equivalent circuit model (ECM) under dynamic profiles. However, traditional recursive least squares (RLS) method easily decays with noise corruption from sensors or insufficient exciting signal in reality, which further limits performance ECM modeling and states estimation. This article thus proposes a reliable online ECM, utilizes well-designed information appraisal procedure based on Fisher-information-based...
Lithium-ion batteries play an indispensable role, from portable electronic devices to electric vehicles and home storage systems. Even though they are characterized by superior performance than most other technologies, their lifetime is not unlimited has be predicted ensure the economic viability of battery application. Furthermore, optimal system operation, remaining useful (RUL) prediction become essential feature modern management systems (BMSs). Thus, RUL a hot topic for both industry...
Constant current charging and discharging is widely used nowadays for commercial lithium (Li) ion batteries (LIBs) in applications of portable electronic devices electric vehicles.
Some studies verified that the pulsed current charging technique could extend battery lifetime and improve performance of lithium-ion batteries. However, some researchers are skeptical this opinion because their have not found any advantages over conventional constant (CC) charging. Positive (PPC), most common mode, was selected for investigation in work. The effect PPC with various parameters, including duty cycle, amplitude, frequency, on batteries, investigated by experiments. According...
Fabricating epoxy resins low in both dielectric properties and moisture absorption is of emerging need but challenging, especially the application microelectronic packaging materials that are intensively exposed to harsh environments. In this work, a series diphenols different substituent positions groups blocked with ester were copolymerized diglycidyl ether bisphenol A (DGEBA)-based resin synthesize high-molecular-weight hydroxyl-free thermoplastics (phenoxy resins). Remarkably constants...
This paper utilizes a Wireless Smart Battery Management System (WSBMS) to manage battery cells in Electric Vehicles (EVs). WSBMS is the cell-level (BMS) based on wireless communication. Compared with conventional modularized BMS, proposed system has advantages of high fault tolerance and sufficient scalability. In addition, balancing algorithm state-of- health (SOH) state-of-charge (SOC) can balance any number, different aging states, reasonable capacity deviation. A prototype built,...
The pulsed current has been proposed to achieve fast charging and extend the lifetime of lithium-ion (Li-ion) batteries. However, optimal condition is still inconclusive in previous studies. This article experimentally investigated effect low-frequency positive (PPC) on performance Li-ion A two-stage degradation model batteries developed determine inhibitory PPC mechanisms at different aging stages. Moreover, changes internal resistance (IR) incremental capacity (IC) curve are provided...
Lithium-ion batteries are commonly employed in electric vehicles due to their efficient energy storage and conversion capabilities. Nevertheless, ensure reliable cost-effective operation, internal states must be continuously monitored. Electrochemical impedance spectroscopy (EIS) is an effective tool for assessing the battery’s state. Different frequency ranges of EIS correspond various electrochemical reaction processes. In this study, measurements were conducted at seven temperatures,...
It is important to accurately estimate the capacity of battery in order extend service life and ensure reliable operation energy storage system. As entropy can quantify regularity a dataset, it serve as feature batteries. In analyze effect voltage dataset selection on accuracy entropy-based estimation methods, six datasets were collected, considering current direction (i.e., charging or discharging) state charge level. Furthermore, three kinds entropies (approximate entropy, sample...
The pulsed current is considered to improve the performance of Lithium-ion (Li-ion) battery. However, effect on Li-ion battery performances inconclusive at present. In this paper, a cell was charged by applying 0.05 Hz current. Different duty cycles, current-rates (C-rates), and ambient temperatures were in order obtain clear impact during charging. Compared with constant current, can charging capacity decrease maximum rising temperature 30.63% 60.3%, respectively. results obtained used for...
The pulsed current charging technique has been proposed to improve the performance and lifetime of Lithium-ion batteries. However, optimal operating conditions current, e.g., profile, frequency, duty cycle, amplitude, still need be investigated. This work focuses on investigating effect battery cells positive (PPC) in low-frequency range between 0.05 Hz 1 Hz. According results cycling aging tests, PPC at can extend up 60% compared with traditional constant (CC) charging. Furthermore, a model...
The increasing demand of aviation electrification makes the detection arc faults for AC Solid State Power Controller (SSPC) in more electric aircraft (MEA) imminent, since it has to be done while SSPC is still operation and such will not provide considerable fault features. In this paper, a method based on Hilbert-Huang transform (HHT) amplitude threshold proposed detection. using empirical mode decomposition (EMD) decompose complex transient signal into finite intrinsic (IMF), so that...