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

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

Thermal Resistivity and Thermal Conductivity in Silicone Foam and Sponge

Posted by Katie Sullivan

Jan 27, 2017 10:13:34 AM

Thermal resistivity and thermal conductivity can be two very important physical features of foam materials to certain applications. Most devices containing electronics must be designed to deal with heat in one way or another. Electronic circuitry operates most reliably at lower temperatures. High operating temperatures decrease the service life of the device or module.  It is critical for designs to either conduct or isolate heat.

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Topics: Thermal Management, Foams, BISCO Silicone

What You Need to Know about the TR Series

Posted by Crystal Deel

Jun 22, 2016 11:01:30 AM

Nitto’s TR series is a must have for thermal and electronic applications. The TR series features a selection of double coated tapes including TR-5912F and TR-5925F. These tapes acquire powerful adhesion which accounts for its strength and reliability. Nitto recommends replacing the use of a screw in an LED or other thermal applications with these thermally conductive adhesives for the best performance. Using the tape method offers superior thermal conductivity performance, and can extend the life of your LED, compared to using the screw method.

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Topics: Thermal Management, Pressure Sensitive Adhesive

Thermal Management in LED Light Assemblies

Posted by Katie Sullivan

Jan 11, 2016 10:30:00 AM

Although LEDs are considerably more efficient than traditional lighting forms, they do still produce heat. This heat can have an adverse effect on the LED and therefore must be managed to ensure the true benefits of this technology are realized. If excessive junction temperatures are reached, particularly above the maximum operating temperature of the LED (~120-150˚C), a non-recoverable effect could occur, leading to complete failure. Operating temperature is a directly related to the lifetime of the LED; the higher the temperature, the shorter the LED life.

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Topics: Thermal Management, LED Lighting

THIN HEAT SPREADERS: Hot Summer Blog Series - Thermal Interface Materials

Posted by Katie Sullivan

Sep 8, 2015 2:00:00 PM

As summer comes to an end, we bring you our final post in our Hot Summer Blog Series exploring Thermal Interface Materials. In this post we briefly look at heat spreaders.  A heat spreader is a heat exchanger that moves heat between a heat source and a secondary heat exchanger whose surface area and geometry are more favorable than the source.   Heat spreaders conduct heat in the x,y and z axes which spreads the heat to a larger surface area.

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Topics: Thermal Management, 2015 Summer Blog Series: Thermal Management

Thermally Conductive Tapes: HOT Summer Blog Series - Thermal Interface Materials

Posted by Katie Sullivan

Jul 24, 2015 10:03:38 AM

 

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Topics: Thermal Management, 2015 Summer Blog Series: Thermal Management

Phase Change Materials - Hot Summer Blog Series: Thermal Interface Materials

Posted by Katie Sullivan

Jun 25, 2015 2:07:00 PM

This is the second post in our Hot Summer Blog Series about Thermal Management Materials.  In this post we will focus on Phase Change Materials.  

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Topics: Thermal Management, 2015 Summer Blog Series: Thermal Management

Thermal Gap Pads - HOT Summer Blog Series: Thermal Interface Materials

Posted by Katie Sullivan

Jun 3, 2015 2:14:42 PM

This is the kick-off to our Hot Summer Blog Series all about Thermal Management Materials.  

Why focus on Thermal management Materials?  Incredible technological advancements have been made over the past 30 years in electronic devices.  Just look at the image below.  

 

 

As devices have become smaller, thinner, and more powerful, the need for efficient removal of heat has become critical to the reliability and longevity of the device.  Heat is a normal by-product of electronics operation.  Thermal Management Materials exist to aid in the efficient conduction of heat within these devices to keep them running at a safe operating temperature.  There are many different types of Thermal Management Materials offering a range of conductivities, thicknesses and softness.  In this series, we will explore the different types, starting off with Thermal Gap Pads.  

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Topics: Thermal Management, 2015 Summer Blog Series: Thermal Management

3M™ FRB Series, UL 94 5VA Flame Rating

Posted by Katie Sullivan

Nov 11, 2014 9:00:00 AM

This innovative material from 3M™ contains unique properties and has the ability enhance your applications.

The 3M™ Flame Barrier FRB Series is a flexible insulation for OEM electrical flame barrier applications.  The material is easily slit, die-cut and/or laminated to fit the requirements of your specific design.

Key Material Characteristics
•    UL 94 5VA flame rating
•    Excellent ignitability resistance
•    Excellent arc and track resistance
•    Good dielectric strength
•    Thermal index of 130°C
•    Very light weight and thin, saving cost and weight in final application
•    Available in white and black for optimal optical and aesthetic results

Applications
•    General purpose lighting luminaires (including LEDs)
•    Electric and hybrid vehicles (between batteries, power converters, etc.)
•    Appliances (vacuum cleaners, slow cookers, etc.)
•    Electrical devices

 

Contact us today for a sample.

Visit the 3M Site to learn more about this material.  Download the data sheet on our data sheets page.

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Topics: Thermal Management