Application Case of Fire‑Resistant Self‑Adhesive Tape in Power Battery PACK

 


 
  Developed and manufactured by ANDI,this ceramifiable Fire‑Resistant Self‑Adhesive Tape is a passive safety material specially engineered for EV and energy storage battery PACK thermal runaway protection.It adopts composite ceramifiable silicone structure with pressure-sensitive adhesive layer,delivering flexible conformability at ambient temperature while forming rigid,dense ceramic barrier upon exposure to high temperature or flame,without molten dripping.
 
  Core Material Properties(ANDI)
 
  -Flame retardancy:FV‑0 grade,self-extinguishing and no dripping under flame attack
 
  -High temperature resistance:withstand up to 1300℃;maintains insulation after ceramization
 
  -Electrical performance:breakdown voltage≥5KV,high-temperature insulation resistance>500MΩ
 
  -Reliability:passed 1200h double 85(85℃/85%RH)aging test,stable under vibration and thermal cycling
 
  -Formula:halogen-free,RoHS compliant,low smoke
 
  -Processability:good tear resistance,fits irregular surfaces;compatible with high-speed automatic wrapping machines for mass production
 
  Deployment Positions in PACK
 
  1.High-voltage busbar&copper terminal wrapping(core application)
 
  Wrap the internal high-voltage copper/aluminum busbars and connecting lugs.Under normal working conditions,it provides continuous electrical insulation and abrasion resistance against vehicle vibration.When single cell thermal runaway occurs,the tape quickly ceramicizes to block jet flame and hot gas,preventing high-voltage short circuit and cascading thermal spread.
 
  2.Module local fire barrier&cell protection
 
  Pasted on module partitions as localized flame barrier to restrain heat transfer from faulty cell to adjacent cells.It can also fix aerogel and thermal insulation sheets.
 
  3.High-voltage harness bundling&protection
 
  Wrap PACK internal high-voltage cables to prevent friction damage and provide flame shielding during thermal events.
 
  4.Insulation reinforcement for end plates and metal structural parts
 
  Laminated on metal structural surfaces to enhance creepage distance and avoid electric leakage risk between live components and metal housing.
 
  5.Local sealing for vent channels&explosion-proof valves
 
  Fire-resistant sealing for gaps around explosion-proof valves and venting passages to limit cross-flow of hot gas inside PACK.
 
  Case Value&Outcome
 
  In this PACK project,ANDI Fire‑Resistant Self‑Adhesive Tape serves as lightweight passive fire protection.Unlike rigid mica plates,its flexible tape format fits complex contours without cracking or delamination.It simplifies assembly and supports automated production.
 
  Once thermal runaway triggers,the formed ceramic layer isolates flame and heat,extending thermal propagation time and winning critical safety buffer time.It reduces the risk of secondary short circuit and improves the overall safety margin of the battery pack.This material meets automotive-grade requirements for both EV and stationary energy storage PACK.
 
  Key Technical Highlights
 
  -ANDI ceramifiable self-adhesive tape,FV-0,halogen-free&RoHS
 
  -Ceramicization at high temp,withstand 1300℃,no molten dripping
 
  -≥5KV breakdown voltage,insulation resistance>500MΩafter thermal shock
 
  -1200h double85 aging validated,stable in humid&temperature cycling environment
 
  -Flexible for complex geometry,compatible with automatic wrapping process
 
  -Mitigate thermal runaway propagation&prevent high-voltage short circuit inside PACK