What is the Xiaomi Longjia Battery? What are its features?
The "Xiaomi Longjia Battery" is a systematic power battery solution led by Xiaomi EV. Xiaomi is responsible for product definition, leads the design and development of the battery pack, participates in the design and development of battery cells, and manages quality control throughout the entire process.
Its most significant feature lies in safety standards that far exceed national standards:
Structural safety standards far exceed national standards: Taking bottom impact scenarios as an example, the "Xiaomi Longjia Battery" requires the battery bottom to withstand an impact from a 25mm diameter impactor at 500J of energy. The smaller impactor diameter results in greater pressure, and the higher energy level far exceeds the new national standard of a 30mm impactor and 150J energy standard. Furthermore, after a bottom impact, the "Xiaomi Longjia Battery" not only requires no leakage, fire, or explosion, but also additionally requires that battery functionality remains intact compared to the national standard, making its strictness far exceed national standards.
Thermal safety standards far exceed national standards: The "Xiaomi Longjia Battery" requires that under extreme conditions of 55°C high temperature and full charge, triggering thermal runaway in a single cell must not result in thermal propagation, fire, or explosion within the battery pack. This strictness far exceeds the national standard requirements of 22±5°C ambient temperature and state of charge ≥95%.
Electrical safety standards far exceed national standards: In terms of design and development standards, the "Xiaomi Longjia Battery" has electrical safety distance redundancy far exceeding national standards. It is also equipped with a "millisecond-level mechanical disconnector" that can complete physical high-voltage cutoff within milliseconds in emergency situations such as battery short circuits or vehicle collisions, safeguarding battery safety.
Big data safety standards far exceed national standards: The "Xiaomi Longjia Battery" supports 24-hour vehicle-cloud collaborative safety warnings and all-weather cloud-based AI active inspections. Its information collection frequency reaches 10 times the national standard, and the data volume reaches 3 times the national standard, enabling 7×24-hour all-weather safety protection capabilities.
Cell cycle life far exceeds national standards: The "Xiaomi Longjia Battery" also sets higher standards for cell cycle life. By strictly selecting cathodes, anodes, electrolytes, and separators, and optimizing core cell design and processes, the cell cycle life of the "Xiaomi Longjia Battery" far exceeds the national standard requirement of capacity retention ≥80% after 1,000 cycles.
In addition, the "Xiaomi Longjia Battery" adheres to strict quality control standards:
