Since the beginning of this year , many provinces have successively issued safety management notices for the new energy industry , defining mandatory building protection standards for lithium battery formation workshops , negative electrode material production lines , hazardous chemical warehouses , and prefabricated energy storage power stations. These notices clearly stipulate that Class A and B production areas must be equipped with professional explosion-proof partition walls , and prohibit the use of ordinary brick walls and gypsum board as explosion-proof partitions. Emergency management department on-site inspection data shows that in factory areas without professional explosion-proof walls , in the event of electrolyte deflagration or dust flashover , the blast shockwave can easily penetrate ordinary walls , and flying debris can easily expand the scope of personnel casualties and equipment damage. However , workshops built with compliant explosion-proof panels in designated areas can reduce the scope of damage by more than 70% , significantly lowering the risk of accountability for safety accidents.
This rectification campaign covers the entire industry chain , including lithium battery production , power battery recycling , industrial and commercial energy storage stations , fine chemicals , and gas storage. The shortcomings of traditional reinforced concrete explosion-proof walls-high weight , long construction period , and the need to reinforce beams and columns in the renovation of old factories-have become apparent , making them unsuitable for the current industry pace of rapid renovation and phased production. New composite explosion-proof panels , with their differentiated performance , are rapidly gaining market share. This panel is made of double-layer perforated galvanized steel sheet wrapped with a high-density fiber silicate core material , formed by high-temperature integral pressing. The internal interwoven fiber buffer structure absorbs the instantaneous impact of an explosion layer by layer , capable of withstanding a shock wave load of up to 2.0 MPa. After an explosion , the panel will not shatter or scatter , avoiding the risk of secondary injury from the source. It fully meets the explosion-proof requirements of GB50089 "Code for Fire Protection Design of Buildings".
The fire resistance also meets the latest national standards. The explosion-proof panel achieves an overall A1 non-combustible rating , with a maximum fire resistance limit of 4 hours. It does not drip or release toxic fumes when burned by high-temperature open flame , effectively preventing continuous fires caused by lithium battery thermal runaway. It is suitable for the long-term fire-resistant partitioning requirements of prefabricated energy storage compartments and battery warehouses. Unlike ordinary fireproof boards that only isolate flames , explosion-proof boards also offer moisture resistance and resistance to acid and alkali corrosion. They will not bulge or powder even after long-term use in coastal chemical industrial parks , underground energy storage corridors , and high-humidity hazardous chemical warehouses. They maintain dimensional stability and do not deform within a temperature range of -40℃ to 120℃ , with a service life of up to 25 years , significantly reducing the cost of subsequent wall renovation and maintenance.
At the engineering implementation level , their lightweight characteristics are a key reason for their popularity among general contractors this year. The entire explosion-proof wall system weighs less than 60 kg per square meter , only one-fifth the weight of a concrete explosion-proof wall. Renovation of old lithium battery plants and existing energy storage power stations requires no additional floor reinforcement. A single person can complete the transfer and cutting of the boards. Modular splicing construction is five times more efficient than traditional bricklaying. After completion , the boards can be disassembled and reused as needed , significantly reducing renovation time and material waste. Meanwhile , the entire production process of the boards is free of formaldehyde , asbestos , and other harmful substances , making them suitable for direct use in high-environmental-requirement settings such as pharmaceutical intermediate workshops , university chemical laboratories , and food additive factories. Each batch comes with complete third-party explosion-proof and fire-resistant testing reports , addressing the pain point of repeated rectification in engineering projects.
From a market application perspective , explosion-proof boards are currently mainly used in lithium battery electrolyte filling , partition walls in chemical formation workshops , protective enclosures for prefabricated energy storage cabins , partitions in hazardous chemical warehouses , explosion-proof firewalls for cable trenches , protective baffles around reactors , and explosion-proof ductwork. Several new energy engineering general contracting companies revealed that explosion-proof boards have been included in the mandatory material list of tender documents for newly started energy storage and lithium battery projects in 2026. Bulk purchase orders have appeared in chemical industrial park renovation projects in many regions , and the overall industry growth rate has increased by more than 18% compared to the same period last year.
