50°C Phase-Change Material PCM Battery

The DM-BLC-50 is a passive PCM (Phase-Change Material) battery constant-temperature module designed for high-temperature environments and specialized power applications. With a nominal 50°C phase-change temperature, the module provides passive thermal buffering by absorbing heat as temperature rises and releasing .PCM Phase-Change Battery Constant-Temperature Module | 50°C | High-Temperature Model

stored thermal energy as temperature falls.Passive PCM Thermal Management for High-Temperature & Specialized Battery Applications.

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Why This PCM Module?

The module uses phase-change latent heat to passively buffer battery temperature fluctuations. It is designed as a low-complexity thermal-management option for battery systems where energy consumption, noise, maintenance and installation space are important considerations.

Key Features

•Passive operation:
No external power supply, fans, pumps or wiring are required for the PCM thermal-management function.

•Bidirectional thermal buffering:
Absorbs excess heat as temperature rises and releases stored thermal energy as temperature falls.

•Thin module design:
Standard thickness options of 6 mm, 8 mm and 10 mm support space-constrained battery-pack integration.

•Sealed structure
Aluminum housing encloses the PCM core and internal thermal-conduction/guiding layer.

•Low maintenance:
No circulating coolant, pump or fan is required, reducing mechanical components and maintenance requirements.

•Customizable:
Dimensions can be customized to the customer's battery-pack geometry.

Working Principle

At elevated battery temperatures, the PCM absorbs thermal energy around the nominal 50°C phase-change point, helping buffer temperature rise. As temperature falls, the PCM releases stored thermal energy, providing passive thermal buffering. The actual temperature profile and thermal-management effect depend on the battery chemistry, pack design, heat generation rate, ambient conditions and module configuration.

Product Positioning & Selection

The 50°C model is intended for high-temperature environments, special power supplies, military/exploration/scientific-research applications, outdoor high-temperature storage and high-power discharge scenarios.

Recommended positioning: High-Temperature Model within the DM-BLC series.

Product Specifications

Parameter	Value
Model	DM-BLC-50
Nominal phase-change temperature	50°C
Operating mode	Passive thermal management
Thickness	6 / 8 / 10 mm
Base structure	Aluminum housing with PCM core and thermal-conduction/guiding layer
Protection rating	IP54
Operating environment	-20°C to +65°C
Dimensions	Standardized or customized
Weight	Custom per specification
Form	Sheet module
Compatible battery	Prismatic, pouch and cylindrical lithium-ion batteries, subject to final pack design and thermal requirements.
Specific gravity	0.92 g/cm³
Thermal conductivity	0.5 ± 0.2 W/m·K
Phase-change enthalpy	≥154 J/g
Specific heat capacity	2.3 J/(g·°C)
Tensile strength	16 MPa
Elongation at break	8%
Flexural strength	12 MPa
Flexural modulus	1000 MPa
Notched impact strength	1.1 kJ/m²
Flame-retardant rating	UL-94 HB
Volume resistivity	>10⁸ Ω·cm
Dielectric breakdown voltage	>3 kV
Molding shrinkage	0.4–0.5%
Heat deflection temperature	100°C
Thermal shock	100 cycles, -40°C to 90°C, 30 min/phase
Reported operating temperature range	-40°C to 100°C
Thermal cycling stability	Stable over 50,000 heating/cooling cycles
Environmental performance	RoHS / EU REACH

Thermal Management Comparison

Dimension	Natural Cooling	Air Cooling	Liquid Cooling	PCM Module
External energy consumption	None	High	High	None
Maintenance	Low	Medium	High	Maintenance-free
Structural complexity	Low	Medium	High	Low
Noise	None	Yes	Pump noise	None
High-temperature heat absorption	Poor	Medium	Excellent	Excellent
Winter insulation	None	None	Additional heating may be required	Excellent
Temperature uniformity	Poor	Medium	Excellent	Excellent

Available Series

Model	Phase-Change Temp.	Thickness	Compatible Battery	Typical Applications
DM-BLC-40	40°C	6/8/10 mm	Prismatic / pouch	Low-temperature regions, portable storage, fast charging
DM-BLC-42	40–42°C peak	6/8/10 mm	21700 cylindrical / prismatic	Two-wheelers, energy-storage cell spacers
DM-BLC-45	45°C	6/8/10 mm	Prismatic / pouch	Two-wheeled EV battery packs, residential storage
DM-BLC-50	50°C	6/8/10 mm	Prismatic / pouch / cylindrical	Special power supplies, high-temperature applications
Custom Model	On demand	On demand	All cell types	Custom molded to customer battery pack

Performance Data Available in the Product Materials

Test Item	Without PCM	With PCM	Reported Improvement
High-temperature enclosed-space peak temperature (24 h)	≈57°C	<40°C throughout	≈19°C / 33% reduction
Battery-pack temperature gradient	Baseline	Reduced	50% reduction
Peak temperature (graphite uniformity test)	Baseline	Reduced	8°C reduction
21700 four-cell discharge peak	≈65°C	≈45°C	≈20°C suppression
Heating/cooling cycle stability	—	Stable	50,000 cycles

Application Scenarios

Special power supplies and battery systems operating in demanding or high-temperature environments.
Outdoor energy storage and mobile power systems exposed to intense solar heating.
Military, field-exploration and scientific-research power systems requiring passive thermal management.
Marine, yacht and RV battery systems installed in enclosed or temperature-variable environments.

Customization

Customized length and width
6 / 8 / 10 mm standard thickness options, with project-specific customization subject to engineering review
Battery-cell configuration and pack geometry
Installation/interface requirements
Thermal-management design according to customer battery-pack requirements

Safety & Environmental Information

UL-94 HB flame-retardant rating is stated in the product materials.
RoHS and EU REACH compliance is stated in the product materials.
The source material states that partial UN38.3 testing for battery transport safety has passed.
Final certification and compliance scope should be confirmed for the final product configuration and application.

Request a Customized PCM Battery Thermal Management Solution

Contact us for product dimensions, technical specifications, sample evaluation and customized PCM module solutions based on your battery-pack design.