Blade battery is a type of lithium iron phosphate (LFP) battery for

electric vehicle An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes cha ...

s designed and manufactured by FinDreams Battery, a

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of Chinese

manufacturing company Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of secondary sector of the economy. The term may refer to a range ...

BYD. The Blade Battery is most commonly a 96 cm long and 9 cm wide single-cell battery with a special design, which can be placed in an array and inserted into a battery pack like a blade. It has various length and thickness. The space utilization of the battery pack is increased by over 50% compared to most conventional lithium iron phosphate block batteries. The driving range of some electric vehicles equipped with Blade Battery can reach more than 600 kilometers. In the nail penetration test, a battery industry's stringent safety test, the Blade Battery emitted no smoke or fire after being penetrated, and its surface temperature reached only 30 to 60 °C. It is currently the only power battery in the world that can safely pass the test. In addition, it successfully passed an extreme safety test that saw it being rolled over by a 46-ton heavy-duty truck. The Blade Battery also passed other extreme test conditions, such as being crushed, bent, being heated in a furnace to 300 °C and overcharged by 260%. None of these resulted in a fire or explosion. The Blade Battery was officially launched by BYD in 2020. Compared with ternary lithium batteries and traditional lithium iron phosphate batteries, it holds notable advantages in its high safety, long range, enduring longevity, ultra strength and high power. To address users' concerns about the safety of EV power batteries, BYD will only use the Blade Battery in all its pure electric passenger vehicles since July 2021.

Safety controversies

BYD claims that "EVs equipped with the Blade Battery would be far less susceptible to

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– even when they are severely damaged." However, In July 2021, a BYD Han EV with Blade batteries was crash-tested in China (car-to-car crash test) versus

Arcfox Alpha-S The Arcfox α-S is an all-electric executive car manufactured by BAIC under the Arcfox brand. Overview In the second half of January 2021, the Chinese automobile division Arcfox presented a new large electric crossover, which, like the smalle ...

. At about 48 hours after the test, nothing happened to the Arcfox Alpha-S, only the BYD Han car caught fire and burned to the ground. On November 15, 2021, a BYD Tang EV (with Blade batteries) caught fire in a workshop in

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, Norway.

References

Lithium-ion batteries BYD Company {{Energy-stub