Geely introduces its own LFP battery

HANGZHOU: Geely Auto Group has unveiled its own lithium iron phosphate (LFP) Short Blade EV Battery Technology.

It claims the technology offers best-in-class battery life, charging speed, and enhanced safety features.

The new battery is designed with a high-strength, high-thermal stability diaphragm and a highly stable separator, ensuring a higher energy density and increased safety.

BYD also has its own LFP-based battery.

One of the standout features of the Geely battery is the self-fusing technology on the electrode surfaces, which prevents short circuits during accidents.

This is complemented by an aluminum foil layer that creates an insulating barrier if the battery is punctured, preventing thermal runaway.

The battery has been rigorously tested beyond standard industry protocols, including an eight-needle puncture test and a 5.8mm infantry rifle bullet penetration test, with no thermal ignition events reported.

The Short Blade EV Battery has also undergone the industry's first "Six Extremes" test series, including seawater corrosion, extreme cold, and fire roasting.

The battery passed all tests without experiencing thermal runaway, smoke, or combustion, demonstrating its robustness and safety.

In terms of longevity, the battery can achieve a cycle life of 3,500 cycles, equating to a potential lifespan of up to 1 million kilometres.

This long lifespan could allow the battery to be in service for up to 50 years, enhancing the residual value of EVs and significantly reducing carbon emissions.

Geely said the new battery technology offers super-fast charging capabilities, reducing the average charging time from 10-80% SOC to just 17 minutes 4 seconds. It also performs well in extreme cold conditions, retaining 90.54% of its capacity at -30°C, compared to 78.96% for long blade batteries.