Square Hard-Case Battery Packaging

In response to the safety and performance requirements of square hard-case batteries under complex operating conditions such as high temperature, high humidity, charge-discharge cycling, and transportation vibration, traditional encapsulation processes often suffer from sealing failure, thermal damage, and insufficient mechanical strength. The KYLOTE™ MBPA low-pressure injection molding process offers customers customized encapsulation protection solutions, providing long-lasting and reliable safeguarding for batteries and ensuring their stability and safety across the full lifecycle.

OurKey Advantages

Low-pressure molding (0.1–0.7 MPa): Avoids high-pressure damage to the battery's delicate internal cells and electronic components, meeting the stringent process stress requirements of batteries.
Low-temperature injection molding (≤200°C): Prevents thermal damage to the battery casing and internal materials caused by high temperatures, thereby avoiding adverse effects on battery capacity and cycle life.
Low water absorption rate (≤0.2% @7 days): Reduces moisture ingress in high-temperature and high-humidity environments, minimizing the risk of internal short circuits and enhancing the battery's environmental durability.
High adhesion and mechanical strength: Ensures structural integrity during battery expansion and contraction due to charging/discharging cycles and withstands transportation vibrations, preventing delamination or cracking of the encapsulation layer.
‌Environmental aging resistance (85°C/85% RH/1000 hours): Also maintains toughness at low temperatures (-40°C), making it suitable for diverse application scenarios such as outdoor energy storage systems and new-energy vehicles.
Rapid curing: Significantly shortens the production cycle, enhances manufacturing efficiency, and meets the battery industry's demand for multi-variety, small-batch customization.