Material Drying
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PPO Battery Peripheral Components
Problem Phenomenon
[Problem Phenomenon] Plastic parts around the battery pack require flame retardancy, heat resistance and dimensional stability
Cause Analysis
PPO flame-retardant grades are heat-resistant and dimensionally stable, suitable for electrical isolation and structural parts of battery packs; low moisture absorption ensures performance in humid-heat environments; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Select flame-retardant PPO grades for battery components and conduct thermal runaway assessment; verify CTI for insulating isolation parts; check fatigue in vibration environments; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PPO for battery peripheral parts is flame-retardant and heat-resistant, with dual guarantees of humid-heat insulation; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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