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High-Integrity Explosion-Proof Battery Disc from China Suppliers - Factory Standards for Safety and Performance
Product Features
The main indicators of the battery air filter are air permeability, hydrophobic, and acid resistance. The main function of air permeability is that no air pressure will be generated during the charging process of the battery. The air filter will release the gas through its own micro pores to prevent the battery from exploding. Hydrophobia means that water droplets drop on the surface of the air filter.
Technical Parameters
Working Temperature
PE/PP ≤ 80°C
Working Pressure
0.1Mpa - 0.6Mpa
Filtration Precision
10um - 30μm
Existing Specifications
| Diameter (mm) | Thickness (mm) | Diameter (mm) | Thickness (mm) | Diameter (mm) | Thickness (mm) |
|---|---|---|---|---|---|
| 10 | 3 | 18 | 3.1 | 15 | 3 |
| 4 | 3 | 9.8 | 3 | 12 | 3 |
| 13 | 3 | 8 | 2.5 | 8.8 | 2.2 |
| 5 | 3.5 | 14.45 | 4 | 17 | 3.2 |
| 12.6 | 3.2 | 25 | 3 | 20 | 3.2 |
| 16.2 | 3.5 | 16 | 2.5 | 16 | 5.5 |
| 23 | 1.6 | 13 | 3.4 | 6.1 | 3 |
| 8.5 | 3 | 16.1 | 2.65 | 8.5 | 2 |
Battery Explosion-Proof Disc Advantages
Safety Protection Mechanisms
Pressure release: When the air pressure inside the battery rises suddenly due to overcharging, short-circuit or thermal runaway, the explosion-proof sheet ruptures through the preset scores or weak points (the burst pressure is usually 0.7-1.1 MPa), and quickly relieves the pressure to avoid explosion.
Over-temperature protection: Part of the design integrates a flip-flop (such as SSD flip-flop), which automatically breaks the circuit when the temperature or pressure reaches the threshold, blocking the energy release path.
Over-temperature protection: Part of the design integrates a flip-flop (such as SSD flip-flop), which automatically breaks the circuit when the temperature or pressure reaches the threshold, blocking the energy release path.
Material and Process Advantages
Composite material application: Polymer, metal alloy (e.g. explosion-proof steel sheet) or ceramic matrix composite materials are used, combining high-temperature (>900℃), electrolyte corrosion-resistant and high-strength characteristics.
Heat treatment: Heat treatment enhances the hardness, tensile strength and weldability of metal rupture discs to ensure weld sealing and long-term reliability.
Heat treatment: Heat treatment enhances the hardness, tensile strength and weldability of metal rupture discs to ensure weld sealing and long-term reliability.
Design Optimization
Scoring Technology: Surface precision scoring (residual thickness ≤0.08 mm) controls burst pressure accuracy (CPK>2.0) to ensure response speed and consistency.
Structural innovation: curved rupture disk fits the battery case, side wall mounting saves space (e.g. steel case batteries) and increases the capacity of the battery cell.
Structural innovation: curved rupture disk fits the battery case, side wall mounting saves space (e.g. steel case batteries) and increases the capacity of the battery cell.
Comprehensive Performance Enhancement
Extend battery life: with circuit protection (e.g. 4.2V charging cut-off voltage, three-stage charging mode), reduce overcharge/overdischarge damage.
Environmentally friendly: Adopting non-toxic biodegradable materials (e.g. environmentally friendly electrolyte) and supporting harmless recycling.
Environmentally friendly: Adopting non-toxic biodegradable materials (e.g. environmentally friendly electrolyte) and supporting harmless recycling.
Battery Explosion-Proof Disc Application
Consumer Electronics
Cell phones/laptop computers: prevent combustion caused by overcharging or short-circuiting of small lithium batteries to protect user safety.
Electric Transportation
New energy vehicles: protect power battery packs against high loads, extreme temperatures and collision risks (15-20% of rupture disk demand).
Power tools/two-wheeled vehicles: prevent thermal runaway accidents under high rate discharge.
Power tools/two-wheeled vehicles: prevent thermal runaway accidents under high rate discharge.
Energy Storage Systems
Grid-level energy storage: for lithium-ion energy storage power stations to guard against fires caused by short circuits or heat spread (e.g., underground energy storage facilities).
Household energy storage: to enhance the safety of household battery systems.
Household energy storage: to enhance the safety of household battery systems.
Special Scenarios
Underground space: Confined environments such as mines, subways, and undersea tunnels require explosion-proof, redundant designs for high energy density batteries.
Aerospace and medical equipment: Ensure zero-failure operation in extreme environments or critical equipment.
Aerospace and medical equipment: Ensure zero-failure operation in extreme environments or critical equipment.
Industrial Field
Chemical/Petroleum: 40% of explosion-proof demand for backup power and monitoring equipment in hazardous environments.
Frequently Asked Questions
What are the key performance indicators of the battery air filter?
The primary indicators are air permeability, hydrophobicity, and acid resistance. Air permeability allows micro-pores to release gas during charging to prevent pressure buildup and potential battery explosions. Hydrophobicity prevents water droplets from penetrating the filter surface.
What are the standard technical parameters for these filters?
For PE/PP materials, the working temperature limit is ≤80°C. The working pressure ranges between 0.1Mpa and 0.6Mpa, with a filtration precision of 10um to 30μm.
How does the safety protection mechanism of the explosion-proof disc work?
It utilizes pressure-release points that rupture at 0.7-1.1 MPa during thermal runaway or short circuits to quickly relieve internal pressure. Additionally, integrated designs like SSD flip-flops automatically break the circuit when temperature or pressure thresholds are reached.
What are the design and material advantages of the explosion-proof disc?
It uses high-temperature (>900°C) and corrosion-resistant materials like polymers, metal alloys, and ceramics. Precision surface scoring (residual thickness ≤0.08 mm) ensures burst pressure accuracy (CPK>2.0), while curved structural designs optimize space inside the battery case.
Where are battery explosion-proof discs typically applied?
They are widely used in consumer electronics (laptops and cell phones), electric transportation (EV power packs and two-wheelers), energy storage systems (household and grid-level), special environments (subways, mines, aerospace, and medical equipment), and hazardous industrial fields (chemical and petroleum).