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Thermal Failure Criteria of the Battery Box
“…we will use maximum temperature as pass/failure criteria similar to FEA simulations…” - back this up w researchThe thermal failure criteria of the battery box is defined by a maximum system operating temperature.
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Temperature Limit of System: 45 °C |
This value was determined based on the LG MJ1 (Rechargeable Lithium-Ion Battery) Datasheet. It can be found in Appendix 1 of the ASC 2021 VDR Battery Tech Report.
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Battery Box Cooling Requirements - ASC Regs
Assembly, geometry, and material properties of the battery box
dig through confluence, battery VDRs box
This page summarizes materials used in the battery box and their associated thermal characteristics → Specific Heat Capacity of the Battery Pack
Also summarized below
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Component
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Material
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Thermal Conductivity (W/ m K)
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Specific Heat Capacity (J/kg K)
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Mass (kg)
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LG MJ1 18650
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assume uniform temp within 18650s
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830
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41.5 (48 g* 864 cells)
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Nickel
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90
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440
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0.8
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EMS Sigma 60
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200
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400
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Acetal
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0.3-0.37
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1400-1500
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Fish Paper
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0.29
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1687
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PETG
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0.29
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1200
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Air
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0.025
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