850°C EV Battery

Phlogopite flexible mica plate - bendable 850°C thermal runaway protection for EV battery packs and lithium-ion modules

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◆ Boards & Rolls Series

Phlogopite Flexible Mica Plate — EV Battery Thermal Runaway Protection

850°C Rated UL94 V-0 Bendable · Rollable

Flexible insulation material purpose-engineered for EV battery pack thermal runaway protection. Built on premium natural phlogopite mica reinforced with glass fiber cloth and specialized fire-resistant adhesive. Exceptional room-temperature bendability — easily wraps cylindrical cells and complex heating element geometries while maintaining outstanding dielectric strength under extreme heat.

750/1000°C

Cont. / Transient

≥20kV/mm

Dielectric Strength

0.15–2.0mm

Thickness Range

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Designed For EV Battery Safety

Thermal Runaway Protection for Lithium-Ion Battery Packs

When a single cell enters thermal runaway, temperatures can exceed 800°C in milliseconds. Propagation to adjacent cells must be stopped — or the entire battery pack catastrophically fails.

Our phlogopite flexible mica plate is engineered specifically for this scenario: 750°C continuous / 1000°C transient temperature rating, combined with UL94 V-0 flame retardancy and ≥20 kV/mm dielectric integrity. Bendable and rollable at room temperature for effortless integration around cylindrical cells, prismatic modules, and complex pack geometries.

◆ 01

1000°C

Transient temperature survival during cell thermal runaway event

◆ 02

V-0

UL94 flame retardancy rating — self-extinguishing barrier

◆ 03

>20kV/mm

Dielectric strength maintained even under thermal stress

◆ 04

0.15mm

Minimum thickness — tight module spaces, maximum pack density

Key Features

Eight Properties That Make It the EV Engineer's Choice

Each property is verified per production batch. Full test reports available on request — critical for automotive supplier approvals.

◆ 01

High Temperature Rating

750°C continuous service, withstands 1000°C transient peaks — engineered to survive direct thermal runaway events.

◆ 02

UL94 V-0 Flame Retardant

Highest UL94 flame retardancy class. Self-extinguishing within seconds once ignition source is removed.

◆ 03

High Dielectric Strength

≥20 kV/mm dielectric strength — reliable insulation between battery cells, busbars, and grounded components.

◆ 04

Room-Temperature Flexibility

Exceptional bendability — wraps cylindrical cells (18650/21700/4680), prismatic modules, and complex geometries without cracking.

◆ 05

Strong Mechanical Strength

Tensile strength ≥100 N/mm² — resists tearing during module assembly, handling, and long-term vibration in EV chassis.

◆ 06

Wide Thickness Range

Available from 0.15 mm (ultra-thin for high-density packs) to 2.0 mm (bulk thermal barriers). Custom thicknesses on request.

◆ 07

Environmentally Safe

Asbestos-free. Produces no toxic gases at high temperature. No airborne dust. RoHS and REACH compliant.

◆ 08

Custom Die-Cutting Available

Ready-to-install shapes for your specific battery module. CAD-based cutting for EV OEM and Tier-1 supplier specifications.

Technical Data

Complete Technical Specifications

Every parameter verified per batch in our in-house QC laboratory. Test reports shipped with every order.

Phlogopite Flexible Mica Plate

◆ Technical Data Sheet · Rev. 2025

⚡ EV Grade

Temperature RatingContinuous service / Transient peak

750 °C / 1000 °C

Flame RetardancyUL94 classification

UL94 V-0

Dielectric Strength

≥ 20 kV/mm

Tensile Strength

≥ 100 N/mm²

Thickness RangeCustom tolerances on request

0.15 – 2.0 mm

Base Material

Premium Natural PhlogopiteReinforced with glass fiber cloth · Fire-resistant adhesive

FlexibilityRoom-temperature bendability

Bendable & Rollable

Compliance

UL94 V-0 · RoHS · REACHAsbestos-free · Automotive-grade

Applications

Where Phlogopite Flexible Mica Plate Protects

Purpose-built for EV battery thermal runaway defense, with cross-industry applications wherever flexible high-temperature insulation is required.

EV Battery Packs

The primary application. Thermal runaway defense layer between lithium-ion cells and battery module housing.

Module side-plate insulation
Inter-cell thermal barrier spacers
Cylindrical cell (18650/21700/4680) wraps
Prismatic module liners

Industrial Equipment

Flexible insulation wherever bendable high-temperature material is required in manufacturing plants.

Induction furnace coil insulation
High-temperature pipe wrapping
Thermal management systems

Home Appliances

Heating element mounting and insulation in consumer appliances requiring flexible thermal barriers.

Hair dryer heating element supports
Toaster heating component brackets
Space heater inner insulation

Phlogopite Flexible Mica Plate — EV Battery Thermal Runaway Protection

Thermal Runaway Protection for Lithium-Ion Battery Packs