Research Article
Analysis of Aging Effect and Cell Balancing Problem of Lithium-Ion Battery
Issue:
Volume 13, Issue 2, April 2025
Pages:
92-107
Received:
10 February 2025
Accepted:
22 February 2025
Published:
18 March 2025
Abstract: This study presents an in-depth analysis of ageing and temperature effects in lithium-ion batteries, as well as an investigation into cell balancing issues. The ageing effect, encompassing capacity fade and impedance rise over time, is scrutinized through experimental and computational approaches. Through controlled cycling tests under various temperature conditions, the impact of temperature on battery ageing is evaluated, revealing accelerated degradation at higher temperatures. Additionally, a comprehensive battery model integrating ageing and temperature effects is developed to simulate the long-term behavior of lithium-ion cells. Furthermore, the study addresses cell balancing challenges, essential for maintaining uniform cell voltages within battery packs to enhance performance and longevity. Various cell balancing techniques, including passive and active methods, are reviewed and compared in terms of effectiveness and implementation complexity. Additionally, novel algorithms for dynamic cell balancing are proposed to mitigate voltage deviations among cells during operation. Overall, this thesis contributes to a better understanding of aging and temperature effect in lithium and battery, here we can see if we add aging and temperature effect battery charging time and voltage increase our time, on the other hand discharging time and voltage decrease.
Abstract: This study presents an in-depth analysis of ageing and temperature effects in lithium-ion batteries, as well as an investigation into cell balancing issues. The ageing effect, encompassing capacity fade and impedance rise over time, is scrutinized through experimental and computational approaches. Through controlled cycling tests under various temp...
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Research Article
Solving the Global Issue of Freshwater Scarcity Through Atmospheric Water Harvesting (AWH) Using Nanotechnology
Ali Mansoor Pasha*
Issue:
Volume 13, Issue 2, April 2025
Pages:
108-115
Received:
24 March 2025
Accepted:
10 April 2025
Published:
9 May 2025
DOI:
10.11648/j.jeee.20251302.12
Downloads:
Views:
Abstract: This research article introduces an Advanced Atmospheric Water Harvesting (AAWH) system that leverages nanotechnology to address global freshwater scarcity, particularly in arid and semi-arid regions. By integrating hygroscopic Metal-Organic Frameworks (MOFs), such as zirconium-based MOF-801, with solar thermal heating and advanced heat exchangers, the proposed system efficiently captures and condenses atmospheric moisture even in low-humidity environments (relative humidity (RH) < 20%). The AAWH system is energy-sustainable, utilizing solar energy to minimize operational costs and carbon emissions, and incorporates IoT-based smart monitoring for real-time optimization. The modular design ensures scalability for applications ranging from individual households to large-scale deployments in desert regions, disaster relief scenarios, and urban settings. The study highlights the system's potential to revolutionize freshwater access through its efficiency, environmental friendliness, and adaptability, supported by scientific principles of nanomaterial adsorption, solar thermal energy, and thermodynamics of condensation. In addition to research validation, the system demonstrated real-world viability through pilot projects in Dubai and flood-affected regions of Pakistan, producing up to 22 litres per day at 15% RH and 5,000 liters per day via portable units, respectively. It achieves water generation at a significantly lower cost compared to desalination and compressor-based AWGs, with minimal environmental footprint. Machine learning algorithms further optimize performance by predicting adsorption-desorption cycles. By combining sustainable energy, smart automation, and advanced materials, the AAWH system presents a transformative solution for water-stressed regions, contributing directly to climate resilience and global water security as outlined in Sustainable Development Goal 6 (SDG 6). The article emphasizes the scalability, cost-effectiveness, and policy relevance of this technology.
Abstract: This research article introduces an Advanced Atmospheric Water Harvesting (AAWH) system that leverages nanotechnology to address global freshwater scarcity, particularly in arid and semi-arid regions. By integrating hygroscopic Metal-Organic Frameworks (MOFs), such as zirconium-based MOF-801, with solar thermal heating and advanced heat exchangers,...
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