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Explosion-proof Lithium Battery Solutions
Designed for high-risk environments such as oil & gas drilling, mining operations, petrochemical facilities, and confined hazardous spaces, LARGE explosion-proof lithium battery systems provide safe, stable, and certified power supply under extreme working conditions.
- Explosion-proof certification design (ATEX / IECEx / GB3836)
- Multiple protection concepts: Ex i (Intrinsic Safety), Ex d (Flameproof), Ex m (Encapsulation)
- Full lifecycle safety management BMS
- Structural and thermal protection for high temperature, vibration, and harsh environments
We don’t supply standard batteries — we deliver customized explosion-proof battery solutions tailored to specific application scenarios.

Challenges in Hazardous Environments
In real-world industrial applications, companies face critical risks:
- Thermal runaway under high temperature or abnormal conditions
- Explosion risks in flammable gas or dust environments
- Structural instability caused by vibration or impact
- Complex certification procedures and compliance requirements
- Diverse equipment needs, making battery selection difficult

Our Capabilities
To address hazardous environment challenges, LARGE provides reliable explosion-proof battery systems:
- Certified explosion-proof designs (Ex i / Ex d / Ex m) for different hazardous zones
- Intelligent BMS with overcharge, over-discharge, short-circuit, and overcurrent protection
- Thermal runaway prevention using flame-retardant materials and heat isolation structures
- Certification support (ATEX / IECEx / GB3836) for global compliance
- Adaptability to high temperature, vibration, and corrosive conditions
Explosion-proof Battery Products
Fully customizable in voltage, capacity, size, interface, and protection level to match specific equipment requirements.
Applications of Explosion-proof Lithium Batteries
Oil & Gas Industry
For equipment operating in flammable gas environments:
·Gas detectors
·Downhole tools
·Explosion-proof communication devices
Mining Equipment
For underground high-risk environments:
·Mining locomotives
·Underground monitoring systems
·Handheld inspection devices
Petrochemical Industry
Power supply for hazardous chemical processing equipment:
·Process control systems
·Hazardous-area sensors
·Automated inspection devices
Explosion-proof AGV Systems
Suitable for safe material handling in hazardous environments:
·Explosion-proof Automated Guided Vehicles (AGVs)
·Hazardous material transportation systems
·Smart factory logistics in explosive environments
Confined & Emergency Safety Spaces
Life safety and emergency support systems:
·Refuge chambers
·Emergency communication systems
·Life detection devices
Explosion-proof Security Equipment
Stable monitoring in hazardous areas:
·Explosion-proof cameras
·Hazardous-area monitoring terminals
Explosion-proof Battery Customization Cases
Explosion-proof Gas Detection Battery Solution
Customer Background
An industrial gas detection equipment manufacturer required a battery system capable of long-term stable operation in flammable and explosive environments.
Project Challenge
- Must meet explosion-proof certification requirements
- Limited internal device space
- Long continuous runtime required
Solution
- Integrated multi-layer protection BMS
- ATEX / IECEx testing and certification
- Intrinsic safety design (Ex i)
Results
- Continuous operation extended to 12+ hours
- Successfully certified under ATEX / IECEx for European market entry
- On-site failure rate reduced by 30%+
Customer Background
A firefighting equipment manufacturer required a compact explosion-proof battery for helmet visor power systems, operating in high temperature, smoke, and potentially explosive environments.
Project Challenges
- Complex environment with heat and explosion risk
- Strict size and weight constraints
- Long-duration stable power supply required
- Extremely high safety requirements
Solution
- Explosion-resistant polymer cell design
- Compact structural integration
- ABS + PC flame-retardant enclosure
- Integrated BMS with full electrical protection
Results
- 6–8 hours runtime per charge
- Ultra-lightweight design (~100g)
- Stable operation from -20°C to 55°C
- Successfully deployed in mass production firefighting equipment
Need a Certified Explosion-proof Battery Solution?
we will provide you with a professional explosion-proof battery solution
Global Explosion-proof Certification Support
We provide battery systems compliant with international and Chinese explosion-proof standards.
Installation space and mounting structure
Proper selection significantly improves equipment performance and service life.
China Standards
GB3836 explosion-proof standard system
Common marking examples:
Ex ib IIB T4
Ex ic IIB T4 Gc
International Certifications
ATEX (EU Directive 2014/34/EU)
IECEx
Certification testing and documentation support available.
How to Select the Right Explosion-proof Lithium Battery?
Battery selection depends on:
Power demand + Operating environment + Protection level + Target certification market
Main Protection Concepts
Ex i – Intrinsic Safety (Energy Limitation)
Limits voltage and current to prevent ignition.
Suitable for:
Low-power devices
Gas detectors · Handheld devices · Sensors
Ex d – Flameproof Enclosure (Explosion Containment)
High-strength enclosure contains internal explosion.
Suitable for:
High-power industrial equipment
Control systems
Ex m – Encapsulation (Resin Sealing Protection)
Encapsulates electronic components to isolate risk.
Suitable for:
Battery PACK systems
Control modules
Explosion-proof Security Equipment
Stable monitoring in hazardous areas:
·Explosion-proof cameras
·Hazardous-area monitoring terminals
Explosion-proof Battery Selection Guidelines
- Low-power equipment → Ex i
- High-power equipment → Ex d or Ex m
- Global markets → ATEX / IECEx
- China market → GB3836
Explosion-proof Battery FAQs
What is the difference between explosion-proof and standard lithium batteries?
Explosion-proof batteries incorporate structural design and system-level safety control to reduce ignition and explosion risks.
How to choose the right explosion-proof battery?
Based on power demand, hazardous area classification, and required certification level.
Do you support explosion-proof certifications?
Yes. LARGE supports ATEX, IECEx, and GB3836 certification processes.
Where can explosion-proof batteries be used?
Oil & gas, mining, petrochemical, and other high-risk industrial environments.
Is customization available?
Yes. Voltage, capacity, structure, protection level, and interfaces can be fully customized.
How is safety ensured?
Through integrated BMS protection, structural explosion-proof design, and thermal management systems.
Can the battery operate in high temperatures?
Yes. High-temperature-adapted designs are available based on application requirements.
Get Your Explosion-proof Battery Solution
We provide integrated support from engineering design to mass production.






