Flexible Solutions

Kapton® Polyimide Film's Extraordinary Properties

Posted by Katie Sullivan

October 26, 2020 11:00 AM

In the 1960s, Dupont™ developed the versatile and high-performing Kapton® Polyimide Film. Since its introduction, designers have relied on Kapton® film because of its ability to maintain its electrical, thermal, chemical and mechanical properties at extreme temperatures. Kapton® films have been used in many advanced markets including, electronic devices, electric vehicle battery, aerospace systems, power transformers, and more.

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Topics: Insulators

4 Insulating Materials for use in EV Batteries

Posted by Katie Sullivan

August 27, 2019 9:00 AM

Improvements are being made to the lithium-ion batteries used in electric vehicles. Car makers are developing more powerful lithium-ion batteries that have increased range and charge more rapidly. Along with these improvements, enhancing safety is becoming increasingly urgent for electric vehicle development.  As mentioned in our previous blog post, 11 Considerations when Selecting Thermal Interface Materials for Electric Vehicle Li-Ion Batteries, Li-ion batteries produce a significant amount of heat while in use and while charging. Along with the use of thermal management materials, placing protective engineered flame-retardant insulating materials between the components of the battery cell, module, and pack can offer additional thermal and electrical insulating protection. However, adding such materials can be challenging due to space and weight constraints.

In this post, we outline four materials that can enhance the safety of lithium-ion batteries used in electric vehicles.  Some shared characteristics of these four materials are listed below. 

  • ultra-thin
  • lightweight
  • electrically and thermally insulating
  • flame retardant
  • can be die-cut and laminated with PSA

Read further for additional detail about each material.

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Topics: Thermal Management, EV, HEV, Material selection, Insulators