Preventing effect of different interstitial materials on thermal runaway propagation of large-format lithium iron phosphate battery module

Yu, Yin; Huang, Zonghou; Mei, Wenxin; Jia, Zhuangzhuang; Song, Laifeng; Wang, Qingsong

doi:10.1016/j.est.2023.107082

Cited by 11 publications

(3 citation statements)

References 34 publications

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“…With a total thickness of 2 mm and a relatively low thermal conductivity of the polycarbonate, the manufactured mini-channel cold plates match the properties of the aforementioned insulation material layers tested in [34,35], which prevented TRP.…”

Section: Polymer Mini-channel Cold Platesmentioning

confidence: 99%

“…The demonstrators mentioned above are composed of aluminum, an excellent thermal conductor, whose capability to avoid TRP as an intercellular application is weak. However, the implementation of insulation layers between large-capacity prismatic cells of at least 2 mm thickness and 0.1-0.2 W/(mK) thermal conductivity was reported to prevent TRP [34,35].…”

Section: Introductionmentioning

confidence: 99%

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The Impact of a Combined Battery Thermal Management and Safety System Utilizing Polymer Mini-Channel Cold Plates on the Thermal Runaway and Its Propagation

Graichen,

Boye,

Sauerhering

et al. 2023

Batteries

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Lithium-ion batteries are widely used in mobile applications because they offer a suitable package of characteristics in terms of specific energy, cost, and life span. Nevertheless, they have the potential to experience thermal runaway (TR), the prevention and containment of which require safety measures and intensive thermal management. This study introduces a novel combined thermal management and safety application designed for large aspect-ratio battery cells such as pouches and thin prismatics. It comprises polymer-based mini-channel cold plates that can indirectly thermally condition the batteries’ faces with liquid. They are lightweight and space-saving, making them suitable for mobile systems. Furthermore, this study experimentally clarifies to which extent the application of polymer mini-channel cold plates between battery cells is suitable to delay TR by heat dissipation and to prevent thermal runaway propagation (TRP) to adjacent cells by simultaneously acting as a thermal barrier. NMC pouch cells of 12.5 Ah capacity were overcharged at 1 C to induce TR. Without cold plates, TR and TRP occurred within one hour. Utilizing the polymer mini-channel cold plates for face cooling, the overcharge did not produce a condition leading to cell fire in the same time frame. When the fluid inlet temperature was varied between 5 and 40 °C, the overcharged cell’s surface temperature peaked between 50 and 60 °C. Indications were found that thermal conditioning with the polymer cold plates significantly slowed down parts of the process chain before cell firing. Their peak performance was measured to be just under 2.2 kW/m2. In addition, thermal management system malfunction was tested, and evidence was found that the polymer cold plates prevented TRP to adjacent cells. In conclusion, a combined thermal management and safety system made of polymer mini-channel cold plates provides necessary TR-related safety aspects in lithium battery systems and should be further investigated.

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Section: Polymer Mini-channel Cold Platesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Impact of a Combined Battery Thermal Management and Safety System Utilizing Polymer Mini-Channel Cold Plates on the Thermal Runaway and Its Propagation

Graichen,

Boye,

Sauerhering

et al. 2023

Batteries

View full text Add to dashboard Cite

show abstract

“…They found that the propagation speed of thermal runaway in lithium-ion batteries is accelerated under parallel conditions. Yu et al [29] and Xiao et al [30] studied the influence of different insulation materials and thicknesses on the propagation of thermal runaway using various thermal insulation materials between lithium iron phosphate batteries. Hang et al [31] explored the inhibitory and delaying effects of liquid nitrogen on lithium-ion battery thermal runaway.…”

Section: Introductionmentioning

confidence: 99%

Research on Thermal Runaway Characteristics of High-Capacity Lithium Iron Phosphate Batteries for Electric Vehicles

Zhu,

Liang,

Zhou

2024

WEVJ

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With the rapid development of the electric vehicle industry, the widespread utilization of lithium-ion batteries has made it imperative to address their safety issues. This paper focuses on the thermal safety concerns associated with lithium-ion batteries during usage by specifically investigating high-capacity lithium iron phosphate batteries. To this end, thermal runaway (TR) experiments were conducted to investigate the temperature characteristics on the battery surface during TR, as well as the changes in battery mass and expansion rate before and after TR. Meanwhile, by constructing a TR simulation model tailored to lithium iron phosphate batteries, an analysis was performed to explore the variations in internal material content, the proportion of heat generation from each exothermic reaction, and the influence of the heat transfer coefficient during the TR process. The results indicate that as the heating power increases, the response time of lithium-ion batteries to TR advances. Furthermore, the heat released from the negative electrode–electrolyte reaction emerges as the primary heat source throughout the entire TR process, contributing to 63.1% of the total heat generation.

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Suppression of thermal runaway induced by thermal abuse in large-capacity lithium-ion batteries with water mist

Hu,

Tang,

Zhu

et al. 2024

Energy

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Preventing effect of different interstitial materials on thermal runaway propagation of large-format lithium iron phosphate battery module

Cited by 11 publications

References 34 publications

The Impact of a Combined Battery Thermal Management and Safety System Utilizing Polymer Mini-Channel Cold Plates on the Thermal Runaway and Its Propagation

The Impact of a Combined Battery Thermal Management and Safety System Utilizing Polymer Mini-Channel Cold Plates on the Thermal Runaway and Its Propagation

Research on Thermal Runaway Characteristics of High-Capacity Lithium Iron Phosphate Batteries for Electric Vehicles

Suppression of thermal runaway induced by thermal abuse in large-capacity lithium-ion batteries with water mist

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