TECHNOLOGY

QoolPlate

Polymer direct-contact architecture for battery thermal management.

QoolPlate is the cooling architecture inside every Qoolers BTMS.
Flexible polymer channels sit against the cell — not behind an aluminium plate and a layer of TIM.
One platform, two integrations: cylindrical cells, or prismatic and pouch cells.

Hotspots and ΔT

A metal plate plus TIM leaves gaps and edges the coolant never sees. QoolPlate puts 0.1 mm of polymer between coolant and cell and keeps that contact as the cell moves.

Mass and stack height

Cylindrical BTMS: up to 70 % lighter than a comparable aluminium HEX. Prismatic & pouch BTMS: up to 50 % lighter. The clearance budget starts at 1.3 mm. No pre-forming.

Electrical risk

QoolPlate is electrically non-conductive. You do not add isolation films to keep a metal heat exchanger away from the cell can.

How QoolPlate works

Direct contact.
Adaptive under swell.
No TIM.

QoolPlate is a row of polymer micro-tubes, joined into a segmented manifold with integrated flow paths. Coolant runs inside the polymer. The outer wall is the heat-transfer surface.

Four facts
01
0.1 mm barrier between coolant and cell
02
Fits gaps down to 1.3 mm, no pre-forming
03
Contact follows cell expansion — area increases under load instead of opening a gap
04
Dielectric-oil compatible, chemically and mechanically robust, electrically insulating

High-Si and fast-charge cells swell. A rigid aluminium plate plus TIM loses contact exactly when heat flux peaks. QoolPlate is elastic. As the cell grows, contact pressure and heat-transfer area increase. That is the mechanism behind longer cycle life and usable fast-charge power — not a bigger pump.

Recyclability: Engineering polymers, designed for separation at end of life. Recyclability above 90 % by weight.

One architecture. Two BTMS products.

BTMS for Cylindrical Cells

Micro-tube QoolPlate around the cell.

Permanent contact on the cylinder, including during expansion.
Up to 70 % lighter and up to 22 % higher thermal performance vs. a comparable aluminium HEX.

BTMS for Prismatic & Pouch Cells

Micro-tube QoolPlate on the large face.

Full-face contact through swell and contraction.
Up to 50 % lighter and up to 22 % higher thermal performance vs. a comparable aluminium HEX.

Modules and packs use the same platform. Customisation is the cell format, the manifold layout and the duty cycle — not a new architecture.

QoolPlate vs. Aluminium HEX

QoolPlate BTMS
Typical aluminium HEX
Contact:
Direct polymer-to-cell
Plate + TIM
Electrical:
Non-conductive
Isolation layers required
Weight:
−70 % cylindrical / −50 % prismatic & pouch
Baseline
Thermal performance:
Up to +22 %
Baseline
Cell swell:
Contact area increases
Gap risk under expansion
Dielectric oils:
Compatible
Typically not
Recyclability:
>90 %
~65 %

Figures are versus a comparable aluminium heat exchanger on hardware benchmarks. Request the performance brief for boundary conditions.

In development.

Under development. Hardware status on request.

Status: in validation

BTMS Immersion — electronically controlled flow

Dielectric immersion with zoned, electronically controlled flow. Coolant is directed to the cells that are under load, so the system does not have to be oversized for the worst cell in the pack.

Status: target completion Q2 2027

Battery Safety System

Active protection against thermal-runaway propagation, designed to work with the pack thermal system and remain independent of pack power.

Status: in validation

BTMS Baseplate

Liquid-cooled polymer cold plate for modules, packs and power electronics — lightweight, electrically insulating, structural.

Patents

Protected architecture, not a slide claim. IP filed across EU, USA and China.

Liquid-filled polymer HEX

Thin polymer tubes terminated into a single manifold with two integrated channels. This is the core of QoolPlate for cylindrical cells.

Electronically controlled TM

The pack or module can be treated as independently controlled thermal zones. Applies to tube HEX and to immersion.

Battery safety system

Active intervention against thermal runaway or its propagation, depending on cell chemistry and layout.

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