Battery Modelling for Crash Safety Simulation

Trattnig, Gernot; Leitgeb, Werner

doi:10.1007/978-3-319-02523-0_2

Cited by 13 publications

(11 citation statements)

References 14 publications

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“…For EVs, the high‐voltage lithium batteries should be protected from collision and high vibration 132 . For electric passenger cars, severe deformation is currently prevented by placing battery packs in booster locations, ensuring structural protection and reducing their size 133 . Battery packs can be provided with additional reinforcements to reduce possible penetration during certain impact conditions.…”

Section: Safety Issues and The Solution For Lithium‐ion Batteriesmentioning

confidence: 99%

Experimental and simulation study of liquid coolant battery thermal management system for electric vehicles: A review

et al. 2020

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Summary Lithium‐ion batteries are among the most commonly used batteries to produce power for electric vehicles, which leads to the higher needs for battery thermal management system (BTMS). There are many key concerning points for the users of these batteries, which include reliability, safety, life cycle, and the operating temperature of the batteries. It is known through review that water is the best coolant for batteries, in which the maximum temperature was 43.3°C while the temperature of the coolant was 30°C during the discharge rate of battery pack at 4 C. An effective cooling system is necessary in prolonging the battery life, which controls the temperature difference between the batteries and the peak temperature of the battery. This review paper aims to summarize the recent published papers on battery liquid‐cooling systems, which include: battery pack design, liquid‐cooling system classification, and coolant performance. Furthermore, this study discusses other factors related to the recent studies, such as the properties and applications of different liquid coolants (oil and water) under the classification of liquid‐cooling system and the difference between passive and active, indirect and direct, and external and internal cooling systems are discussed. Moreover, this paper investigates the effect of temperature on the performance of battery in three aspects: low, high, and differential temperatures. Moreover, the study provides a systematic review of liquid‐based systems for direct and indirect contact modes.

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Section: Safety Issues and The Solution For Lithium‐ion Batteriesmentioning

confidence: 99%

Experimental and simulation study of liquid coolant battery thermal management system for electric vehicles: A review

et al. 2020

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“…The battery pack geometry, its position and the structural design of the vehicle are all relevant design parameters when integrating the battery pack in the vehicle [11]. A common approach is to install the battery pack inside stiffened and reinforced compartments or areas less prone to be affected in crash conditions [11]. The latter is sometimes referred to as a vehicle's ''safe zone'' [12].…”

Section: Traction Batteriesmentioning

confidence: 99%

Handling Lithium-Ion Batteries in Electric Vehicles: Preventing and Recovering from Hazardous Events

2020

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The demand for lithium-ion battery powered road vehicles continues to increase around the world. As more of these become operational across the globe, their involvement in traffic accidents and incidents is likely to rise. This can damage the lithium-ion battery and subsequently pose a threat to occupants and responders as well as those involved in vehicle recovery and salvage operations. The project this paper is based on aimed to alleviate such concerns. To provide a basis for fire safety systems to be applied to damaged EVs, hazards have been identified and means for preventing and controlling lithium-ion battery fires, including preventive measures during workshop and salvage activities were studied. Tests were also performed with fixed fire suppression systems applying suppressant inside traction batteries which showed to improve their safety.

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“…It is important to mimic loading conditions on pouch cells that can occur from external impact on battery packs. 4,34 Inside battery packs and modules, pouch cells are typically packed in stacks under compression, which allows the cells to provide flexible support to one another. During external impact on a battery pack, the deformation of cells is constrained by the pack enclosures and neighboring cells.…”

Section: Experimental Testing Of the Lib Cells With Breakable Electrodesmentioning

confidence: 99%

“…3 LIB safety upon impact has been the subject of extensive research into possible failure mechanisms and the design of necessary safety features. 4,5 For batteries in electric or hybrid vehicles, safety is typically ensured by reinforcing the enclosure of the battery pack, which adds to the weight of a vehicle 5 and reduces the overall Wh/mile performance. 6 Designing batteries to protect them from a variety of impact scenarios is a difficult task.…”

Section: Introductionmentioning

confidence: 99%

Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries

Naguib

Allu

Simunovic

et al. 2018

Joule

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In this study we report on a new design concept for Li-ion battery electrodes to mitigate mechanical impact without catastrophic failure for the battery. The concept is based on introducing breakable electrodes that, upon impact, isolate the damaged part from the rest of the electrode to limit the current going through any short circuit. We used patterns of slits to realize the breakable electrodes, which in principle add little cost and can be produced by the roll-to-roll process.

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Battery Modelling for Crash Safety Simulation

Cited by 13 publications

References 14 publications

Experimental and simulation study of liquid coolant battery thermal management system for electric vehicles: A review

Experimental and simulation study of liquid coolant battery thermal management system for electric vehicles: A review

Handling Lithium-Ion Batteries in Electric Vehicles: Preventing and Recovering from Hazardous Events

Limiting Internal Short-Circuit Damage by Electrode Partition for Impact-Tolerant Li-Ion Batteries

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