LongSun fireproof ceramic silicone tape redefines protection standards with innovative technology.
2025-09-29
Safety Protection of New Energy Vehicle Power Batteries: A Critical Focus of the Industry
Safety protection of new energy vehicle power batteries remains a key focus of the industry. In critical links such as high-voltage copper bar wrapping, battery pack fire shields, and cell module protection, material selection directly determines the safety factor. While ordinary fire-resistant materials have been criticized for molten dripping, failure under extreme temperature changes, and environmental risks, mica tape was once highly anticipated but has exposed many new problems in practical applications.
The Protection Dilemma of Mica Tape: Hidden Risks in a Seemingly Ideal Alternative
Although mica tape has solved the problem of combustion dripping of ordinary materials to a certain extent with its natural high-temperature resistance, its protective effectiveness still has three core limitations:
The hidden risks of chemical safety cannot be ignored. Natural mica generally contains fluorine and other halogens due to lattice defects. Although synthetic mica has a complete structure, it retains a large amount of free fluorine due to high-temperature solid-phase reactions. Even with special halogen removal processes, which require high-temperature treatment at 95-150°C for 1-4 hours, production efficiency is significantly reduced and costs increase substantially. For new energy vehicles pursuing environmental protection and safety, this potential risk of halogen release may exacerbate toxic gas hazards during battery thermal runaway, contradicting the original intention of safety design.
Performance shortcomings in extreme environments are particularly prominent. The overall performance of mica tape heavily relies on adhesives. Traditional phenolic resin or nitrocellulose adhesives are prone to aging and decomposition at high temperatures, leading to mica sheet detachment and tape damage. In low-temperature environments of -60°C, the mica substrate itself becomes brittle and may crack. In the vibrating environment of vehicle operation, this embrittlement may cause the protective layer to peel off, losing its insulation and fireproofing functions. More critically, although the tensile strength of mica tape can reach over 120N/cm, surface mica particles are prone to falling off due to friction from volume changes during cell charging and discharging, leading to degradation of protective performance during long-term use.
Thermal management contradictions have become a new technical bottleneck. As a poor conductor of heat, mica can block flame spread but seriously hinders normal battery heat dissipation. In battery packs with high-density cell arrangements, mica materials can cause heat accumulation in the middle area, exacerbating temperature differences between cells. In low-temperature environments, they block external heat transfer, affecting battery activity and cruising range. This inherent contradiction between heat insulation and heat dissipation makes mica tape difficult to balance in battery thermal management systems.
LongSun Fireproof Ceramic Silicone Tape: Redefining Battery Protection Standards
Addressing the inherent defects of mica tape, LongSun fireproof ceramic silicone tape has achieved three major breakthroughs through material innovation, providing an ultimate solution for new energy battery protection:
The halogen-free environmental safety revolution fundamentally solves toxicity hazards. LongSun products adopt a 100% halogen-free formula, abandoning fluorine-containing adhesives relied on by traditional mica tapes, and do not release any toxic gases during combustion. Passing the rigorous testing of ROHS 2.0 environmental certification, even in extreme cases of battery thermal runaway, they can buy valuable escape time for drivers and passengers, completely eliminating the risk of secondary harm.
The performance advantage of full temperature range stability perfectly copes with extreme environmental challenges. Within the wide temperature range of -60°C to 200°C, LongSun ceramic silicone tape maintains excellent flexibility, neither embrittling at low temperatures like mica tape nor causing adhesion at high temperatures. When exposed to flames, the material quickly undergoes ceramization, forming a hard heat-insulating shell that does not drip or collapse, continuously protecting wires and cables from flame damage and ensuring unobstructed circuits and normal communication. This unique "flexible at room temperature, rigid at high temperature" performance completely solves the problem of temperature change failure in traditional materials.
Lightweight and thermal compatibility design thermal management contradictions. LongSun ceramic silicone tape has a thickness of only 0.12-0.18mm and is 30% lighter than traditional mica tape, significantly reducing battery pack weight. The special microstructure design ensures fire resistance while reducing obstruction to the cooling system, achieving temperature balance in conjunction with battery thermal management strategies. Its excellent wear resistance can withstand friction from volume changes during cell charge-discharge cycles, with a service life far exceeding that of ordinary mica tape.
The upgrade of new energy battery safety protection is essentially an iteration of material technology. When the limitations of mica tape become a safety bottleneck, LongSun fireproof ceramic silicone tape redefines protection standards with innovative technology. Contact us now to obtain exclusive new energy battery protection solutions and apply for free samples for performance testing, ensuring every new energy vehicle receives ultimate safety protection. Safety upgrading starts with choosing LongSun.
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