High-Integrity Battery Explosion-Proof Disc for Mitigation - China Suppliers & Factory Compliant with JB/T13623-2019
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
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
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.
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.
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.
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.
Battery Explosion-Proof Disc Application
Cell phones/laptop computers: prevent combustion caused by overcharging or short-circuiting of small lithium batteries to protect user safety.
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.
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.
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.
Chemical/Petroleum: 40% of explosion-proof demand for backup power and monitoring equipment in hazardous environments.