A5089150108- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Electric Vehicles and Infrastructure
- Reliability and Maintenance Optimization
- Electric and Hybrid Vehicle Technologies
- Fault Detection and Control Systems
- Sensor Technology and Measurement Systems
- Supercapacitor Materials and Fabrication
- Fuel Cells and Related Materials
- Advanced DC-DC Converters
- Conducting polymers and applications
- Electrical Contact Performance and Analysis
- Engineering and Test Systems
- Electrical and Bioimpedance Tomography
- CCD and CMOS Imaging Sensors
- Advanced Welding Techniques Analysis
- Spectroscopy and Chemometric Analyses
- Non-Destructive Testing Techniques
- Green IT and Sustainability
- Interconnection Networks and Systems
- Real-Time Systems Scheduling
- Advanced MRI Techniques and Applications
- Mechanical Engineering and Vibrations Research
- Multimedia Communication and Technology
University of Warwick
2015-2024
University of South Wales
2012
Lithium-ion cells currently power almost all electronic devices and tools; they are a key enabling technology for electric vehicles increasingly considered to be the of choice grid storage. In line with this increased applicability, there is also an increase in development new commercial lithium-ion cell technologies that incorporate innovative functional components (electrode material compositions electrolyte formulations) designs, leading diverse range performance characteristics. The...
Abstract The power capability of a lithium ion battery is governed by its resistance, which changes with state such as temperature, charge, and health. Characterizing therefore, integral in defining operational boundaries, estimating performance tracking There are many techniques that have been employed for the resistance battery, these include: using DC pulse current signals tests or Hybrid Pulse Power Characterization (HPPC) tests; AC signals, i.e., electrochemical impedance spectroscopy...
• Experimental study into the impact of current ripple on li-ion battery degradation. 15 cells exercised with 1200 cycles coupled AC–DC signals, at 5 frequencies. Results highlight a greater spread degradation for exposed to AC excitation. Implications BMS control, thermal management and system integration. The power electronic subsystems within electric vehicle (EV) powertrains are required manage both energy flows delivery torque by electrical machine. Such systems known generate undesired...
With the advent of sustainable and clean energy transitions, lithium-ion batteries have become one most important storage sources for many applications. Battery management is utmost importance safe, efficient, long-lasting operation batteries. However, frequently changing load operating conditions, different cell chemistries formats, complicated degradation patterns pose challenges traditional battery management. The data-driven solutions that emerged in recent years offer great...
Li-ion cell designs, component integrity, and manufacturing processes all have critical influence on the safety of batteries. Any internal defective features that induce a short circuit, can trigger thermal runaway: cascade reactions, leading to device fire. As consumer manufacturers push aggressively for increased battery energy, instances field failure are increasingly reported. Notably, Samsung made press release in 2017 following total product recall their Galaxy Note 7 mobile phone,...
Sidewall rupture of lithium-ion batteries plays an important role in thermal runaway (TR) propagation because flame burst from the side cell can directly heat adjacent cells. However, understanding sidewall high specific energy cells under mechanical abuse conditions remains limited. In this work, nail penetration is adopted as a trigger method TR 21700-format cylindrical with (257.0 W∙h/kg). The effects test parameters including diameter, speed, penetrating location, depth, and state charge...
Recent uptake in the use of lithium-ion battery packs within electric vehicles has drawn significant attention to selection busbar material and corresponding thickness, which are usually based on mechanical, electrical thermal characteristics welded joints, availability cost. To determine joint behaviour critical-to-quality criteria, this study uses one widely used joining technologies, ultrasonic metal welding (UMW), produce tab-to-busbar joints using copper aluminium busbars varying...
Long term ageing experimental results show that degradation resulting from coupled DC and AC current waveforms lead to additional of lithium-ion batteries above experienced through pure cycling. More profoundly, such experiments a dependency battery on the frequency perturbation. This paper addresses underlying causality this dependent degradation. Cell autopsy techniques, namely X-ray photoelectron spectroscopy (XPS) negative electrode surface film, growth film components with...
Ageing prediction is often complicated due to the interdependency of ageing mechanisms. Research has highlighted that storage not linear with time. Capacity loss storing battery at constant temperature can shed more light on parametrising properties Solid Electrolyte Interphase (SEI); identification which, using an electrochemical model, systematically addressed in this work. A new methodology proposed where any one available datasets be used find property SEI layer. sensitivity study...
The driving and charging behaviours of Electric Vehicle (EV) users exhibit considerable variation, which substantially impacts the battery degradation rate its root causes. EV packs undergo second-life application after first-life retirement, with SoH measurements taken before redeployment. However, impact cause on performance remains unknown. Hence, question whether it is necessary to have more than a simple measure state health (SoH) This article presents experimental data investigate...
Accurate battery modelling requires precise measurements of key characteristics, including their surface temperature during fast charging and discharging states. Battery are also used to mitigate thermal events such as runaway, which can cause fires. Established literature has shown that there significant variations in the lithium-ion cells between various thermocouple sensors, common K T-Type thermocouples. In this paper, these investigated for first time context characterisation. The...