Battery protection sheet cutting

What is a mica sheet used for in a car battery?

Mica sheets are one of the popular materials used for insulations within the battery. They can handle high temperatures and help better dissipate heat from the battery packs. Due to their insulation capabilities, they’re even used as a barrier between the battery and the passenger compartment.

How do you keep a battery from overheating?

Most batteries come with a battery management system that controls the rate of charging to prevent overheating. Components like silicon and Nomex are used to insulate other parts of the battery. And mica is used for better heat dissipation, and in case of thermal runaway, to slow it down.

How many kV protection can a dielectric sleeve provide?

Depending on the material used, up to 15 Kv protection can be achieved. Dielectric shrink sleeves are also custom-designed for the cylindrical, pouch, or prismatic cells and can provide up to 5Kv protection for each cell. Products can be supplied in high or low shrink versions and can be supplied as a sleeve or a pouch.

What is the best insulation for EV batteries?

It can withstand temperatures up to 1000℃ and voltages up to 2000V. It absorbs little moisture and is resistant to most elements making it ideal for the thermal insulation of EV batteries. Mica sheets and laminates can be used to separate cells in an EV battery and even keep it away from the rest of the vehicle.

Why do we use thin wall die-cuts for cell protection?

For protecting individual cells and for cell to cell protection. Thin wall die-cut pressure-sensitive parts made of flame retardant films or papers provide excellent protection on or between cells. Depending on the material used, up to 15 Kv protection can be achieved.

Can mica damage EV batteries?

The process happens rapidly, in a span of milliseconds, and can become uncontrollable very quickly. The reaction can damage the batteries beyond repair, and in a worst-case scenario, it can even destroy the EV. Mica has high insulating properties and is even used for protecting furnaces.