Theoretical model of lithium iron phosphate power battery under high‐rate discharging for electromagnetic launch

Zhang, Ren; Liu, Junyong; Long, Xian-Jun; Wu, Yiting; Liu, Yingquan

doi:10.1002/msd2.12014

Cited by 13 publications

(3 citation statements)

References 10 publications

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“…In particular, extending the usage of electric vehicles is an important measure to reduce global carbon dioxide emissions [1,2]. The cathode material of a lithium-ion battery plays a significant role in affecting cost of production, capacity, rate performance and energy density [3]. Among the cathode materials for lithium-ion batteries that have been commercialized, precious metals face the same problem of natural reserves as fossil fuels, such as cobalt, which is the most expensive metal compared with other commonly used metals in batteries such as nickel, manganese and aluminum.…”

mentioning

confidence: 99%

Recent advances on low-Co and Co-free high entropy layered oxide cathodes for lithium-ion batteries

Yu,

Wang,

et al. 2023

Nanotechnology

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As the price of the precious metal cobalt continues to rise, there is an urgent need for a cobalt-free or low-cobalt electrode material to reduce the cost of lithium-ion batteries, which are widely used commercially, while maintaining their performance as much as possible. With the introduction of the new concept of high entropy materials into the battery field, low cobalt and cobalt free high entropy novel lithium-ion batteries have attracted great attention. It possesses important research value to use high entropy materials to reduce the use of cobalt metal in electrode materials. In this perspective, the comparison between the new cathode materials of low cobalt and cobalt-free high entropy lithium-ion battery and traditional cathode materials and the latest progress in maintaining structural stability and conductivity are introduced. It is believed that low cobalt and cobalt-free and high entropy layered oxides can be used to replace the function of cobalt in the cathode materials of lithium-ion batteries. Finally, the future research directions and the synthesis method of high entropy cathode materials for lithium-ion batteries are also discussed.

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mentioning

confidence: 99%

Recent advances on low-Co and Co-free high entropy layered oxide cathodes for lithium-ion batteries

Yu,

Wang,

et al. 2023

Nanotechnology

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“…Li-ion batteries are extensively used in the BESS due to their high energy density and efficiency. It is widely known that the battery's performance is closely related to its temperature [3], with limited life expectancy at high temperature [4][5][6] and decreased performance at low temperature [7]. However, the battery generates a lot of heat during charging and discharging.…”

Section: Introductionmentioning

confidence: 99%

Coupling simulation of the cooling air duct and the battery pack in battery energy storage systems

Zhu

Kong

et al. 2023

Phys. Scr.

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The air-cooled battery thermal management system (BTMS) is a safe and cost-effective system to control the operating temperature of battery energy storage systems (BESSs) within a desirable range. Different from the design of the air supply flow field of most BESSs in previous studies, this study proposes a novel combined the cooling air duct and the battery pack calculation method to enhance the heat dissipation of the battery. Using computational fluid dynamics (CFD) models, potential problems with numerical calculations of cooling air duct and battery packs alone and coupled simulations of the two are investigated. The important factor influencing the uniformity of air supply is identified, and creative measures for improvement are proposed. The results in this paper indicate that the uniformity of the outlet air supply does not indicate that the temperature uniformity performance of the matrix battery meets the requirements due to the variation of the sub air duct outlet pressure, and the coupling simulation of the cooling air duct and the battery pack is an essential process for BESSs. With the improvements proposed in this paper, the standard deviation coefficient of velocity is reduced from 60.3% to 12.6%. Furthermore, the innovative improvement of placing the partition at the connecting duct can regulates the battery temperature between 298.58 K and 311.73 K and ensures a maximum temperature difference of only 4.22 K for a single battery. Ultimately, the power consumption of the cooling system can be reduced by 6.9%. The results of the paper provide a guide for uniform heat dissipation in BESSs.

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“…As an example in China, in April 2021, a fire and explosion occurred during the construction and commissioning of an energy storage power station in Fengtai, Beijing, resulting in 2 deaths, 1 injury, and 1 missing person (Shi et al, 2023). Therefore, how to develop stable and reliable lithium-ion battery thermal management systems using advanced technologies to comprehensively control the temperature of energy storage systems is directly related to the safety and smooth operation of people's lives and property, as well as the normal operation of energy storage systems (Zhou et al, 2021;Yang et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

A novel multilayer composite structure based battery thermal management system

et al. 2023

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The battery thermal management system (BTMS) utilizing phase change materials (PCM) has shown promising performance in high heat flux heat dissipation. However, conventional PCM systems do not fully exploit the latent thermal properties of paraffin wax to enhance battery cooling efficiency. To address this issue, this paper proposes a novel multilayer composite material for BTMS, aiming to improve the thermal performance of the battery and overcome the low thermal conductivity of paraffin wax. The preparation process involves positioning the battery at the center of a triangular container, melting paraffin wax and pouring it into a 100 mm high container to form a 20 mm paraffin layer, placing copper foils and graphite layers on the paraffin surface, and repeating this step once. Finally, pour the 40 mm paraffin wax into the container, resulting in a sandwich-like structure with two layers of graphite. The cooling performance of the multilayer composite structure was experimentally tested at different ambient temperatures (15°C and 20°C) and discharge rates, and compared with a conventional BTMS based on pure paraffin wax. The results demonstrate that the multilayer composite structure exhibits superior heat dissipation compared to the pure paraffin structure, significantly reducing battery temperature rise, particularly at higher discharge rates. At an ambient temperature of 20°C and a discharge rate of 5°C, the battery temperature rise is only 14.97°C, with a remarkable cooling effect of 32.6%. Moreover, optimization of the number and thickness of graphite layers in the composite structure reveals that the 6-layer graphite structure outperforms the 2-layer, 4-layer, 8-layer, and 10-layer graphite structures. Additionally, a relatively lower battery surface temperature is observed with a graphite thickness of 0.5 mm on the basis of the 6-layer graphite structure. These findings indicate that the proposed novel layout structure exhibits excellent thermal performance, effectively addressing the low thermal conductivity limitation of traditional paraffin cooling systems, and providing a new approach for thermal management of lithium batteries.

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Theoretical model of lithium iron phosphate power battery under high‐rate discharging for electromagnetic launch

Cited by 13 publications

References 10 publications

Recent advances on low-Co and Co-free high entropy layered oxide cathodes for lithium-ion batteries

Recent advances on low-Co and Co-free high entropy layered oxide cathodes for lithium-ion batteries

Coupling simulation of the cooling air duct and the battery pack in battery energy storage systems

A novel multilayer composite structure based battery thermal management system

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