Failure behaviours of 100% SOC lithium-ion battery modules under different impact loading conditions

Xia, Yong; Chen, Guanhua; Zhou, Qing; Shi, Xiangnan; Shi, Feng

doi:10.1016/j.engfailanal.2017.09.003

Cited by 104 publications

(24 citation statements)

References 18 publications

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“…During driving of an EV, the pack enclosure may encounter dynamic loads and random vibrations when bumping, turning, climbing, and so on. This could cause a short circuit in the internal components of the battery pack, causing the battery pack to catch fire or even explode 89,90 . The strategy to solve such problems is to enhance the mechanical performance of the enclosure, so that the battery pack has higher strength and vibration resistance.…”

Section: Research Aspectsmentioning

confidence: 99%

Intelligent optimization methodology of battery pack for electric vehicles: A multidisciplinary perspective

Garg

Xiao

et al. 2020

Int J Energy Res

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Past studies focused on proposing new materials for batteries components, state of health (SOH) prediction, thermal design, equivalent circuit modeling, and so on. Those studies have been implemented on individual basis on a single battery or battery pack. However, there is hardly any research found that encompasses all the multidisciplinary aspects (such as materials, SOH, intelligent configuration [assembly], thermal design, mechanical safety, and recycling of materials and pack) simultaneously for the battery pack design of electric vehicles. This research article proposes a synthetic methodology for an advanced design of battery pack and its components by incorporating optimal scenario of materials selection for battery electrodes, SOH estimation, configurations (assembly) of cells, thermal (air and liquid cooling) design, battery pack casing mechanical safety, and recycling aspects of battery and battery pack. The problem is divided into the several parts and methodology for each is proposed. Cumulative advantages of the methodology with six future critical directions are discussed in the end.

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Section: Research Aspectsmentioning

confidence: 99%

Intelligent optimization methodology of battery pack for electric vehicles: A multidisciplinary perspective

Garg

Xiao

et al. 2020

Int J Energy Res

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“…Figure 10 shows the variation of dimensionless short-circuit heat generation rates with dimensionless internal short-circuit resistance. The dimensionless short-circuit heat generation rate is represented by Equation (14) and the dimensionless internal short resistance is represented by Equation (15). The internal resistance of the coin cell is 400 mΩ.…”

Section: Effect Of the Location Of The Penetrating Elementmentioning

confidence: 99%

“…Dimensionless short circuit resistance = R short R cell (15) Figure 10. Dimensionless short-circuit heat generation rate variation with dimensionless internal short-circuit resistance.…”

Section: Effect Of Short-circuit Resistancementioning

confidence: 99%

“…At around 180 • C, electrolyte solvent decomposes, and flammable components undergo combustion leading to thermal runaway [14]. The mechanical abuse in terms of penetration, or crush leading to thermal abuse, is an important safety concern and has received increased attention in recent years [15]. In many applications, the overheating and overcharge is controlled as a safe temperature and cut-off voltage are maintained.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Abuse Behavior of the LIR2450 Micro Coin Cell Battery Having Capacity of 120 mAh with Internal Short Circuit by Penetrating Element

et al. 2020

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Internal short circuit in lithium-ion battery by penetrating element leads to exothermic behavior due to accumulated heat. In the present study, investigations are conducted on the thermal behavior of the LIR2450 micro coin cell haivng capacity of 120 mAh, with internal short circuit by penetrating element. The experimental coin cell discharge study was conducted and validated with numerical study within ±5.0%. The effect of penetrating element size, location of penetrating element, state of charge, discharge rate, short-circuit resistance, and heat transfer co-efficient on maximum coin cell temperature and heat generation rate are analyzed. The penetrating element diameters of 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, and 3.5 mm are considered. The effect of initial state of charge (SOC) is considered with 100%, 80%, 60%, and 40%. Three locations for penetrating element are considered with the center, the middle of the radius, and on the edge of the coin cell radius. The different discharge rates of 1C, 2C, 3C, and 4C are considered. The higher-penetrating element size of 3.5 mm with location at the center of the coin cell with 100% SOC showed maximum heat generation rate and maximum temperature of the coin cell. In addition, the optimum value of the dimensionless heat generation rate is obtained at dimensionless short-circuit resistance. The study provides comprehensive insights on the thermal behavior of the lithium-ion cell during thermal abuse condition with internal short circuit by penetrating element.

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“…to a multitude of underlying failure mechanisms. Other research has examined the effect of state of charge and sate of health [8], [9] on mechanical integrity.…”

Section: Introductionmentioning

confidence: 99%

The Use of UL 1642 Impact Testing for Li-ion Pouch Cells

Aalund

Pecht

2019

IEEE Access

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The industry demand for high-capacity cells with a small footprint is a result of demands for improved products and new applications. However, this presents challenges in terms of safety. While standards, such as UL 1642, have been developed for battery safety assessment, including impact testing, this paper shows that cell manufacturers are facing difficulties with UL 1642 safety tests. This is leading to alterations in the test procedures, where 'golden samples' are tested, while production cells cannot pass the safety tests. This is a flaw in the process that is being accepted by UL. This paper reviews the UL 1642 standard and similar standards used in portable electronics, provides experimental support for the concerns, and presents recommendations.INDEX TERMS Impact test, internal short circuit, Li-ion pouch cells, mechanical testing, safety, standards.

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Failure behaviours of 100% SOC lithium-ion battery modules under different impact loading conditions

Cited by 104 publications

References 18 publications

Intelligent optimization methodology of battery pack for electric vehicles: A multidisciplinary perspective

Intelligent optimization methodology of battery pack for electric vehicles: A multidisciplinary perspective

Thermal Abuse Behavior of the LIR2450 Micro Coin Cell Battery Having Capacity of 120 mAh with Internal Short Circuit by Penetrating Element

The Use of UL 1642 Impact Testing for Li-ion Pouch Cells

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