Flexible Solutions

4 Insulating Materials for use in EV Batteries

Posted by Katie Sullivan

Aug 27, 2019 9:00:00 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
  • light weight
  • 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

3 Common Misconceptions About Durometer

Posted by Andrew Bonar

Jul 9, 2019 9:32:31 AM

 
The Shore durometer (pictured right) is a scale for measuring the hardness of a material, such as rubber, plastic, thermal  plastics (TPE), and rigid plastics. The term "durometer" is often used to describe a material's rating on the scale, for example “this material has a durometer of 60.”
  
It's worth noting, there are a variety of durometer scales since elastomeric and plastic resins vary over a wider range than one scale can accommodate. Download our comparison chart to see how these scales overlap.
 
Durometer hardness is one of many physical properties considered when selecting a material for a specific application. Beware of some common misconceptions. Durometer hardness is often inaccurately confused with the properties described below. 

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Topics: Foams, Compression Force Deflection, PORON, PORON Foam, Elastomers, Material selection

PORON® EVExtend 4701-43RL For Use In EV/HEV Li-ion Pouch Cell Batteries

Posted by Katie Sullivan

May 29, 2019 1:01:15 PM

Our valued material supplier, Rogers Corporation, has released PORON® EVExtend 4701-43RL polyurethane foam material. This is an ideal battery pad material for EV/HEV li-ion pouch cell batteries.

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Topics: Foams, PORON Foam, EV, HEV, Material selection

11 Considerations when Selecting Thermal Interface Materials for Electric Vehicle Li-ion Battery

Posted by Katie Sullivan

Mar 22, 2019 8:06:17 AM

Currently, lithium-ion (li-ion) batteries are the most common type of battery used to power electric vehicles. Today's market is demanding that batteries charge faster and last longer. Because li-ion batteries produce significant heat when in use and charging, thermal management is critical.  Excessive heat can cause irreparable damage to the battery. 

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