BYD Blade battery

The blade battery also passed other extreme test conditions, such as being crushed and bent, being heated in a furnace to 300 °C (572 °F), and being overcharged by 260%.

[4] BYD claims that "EVs equipped with the blade battery would be far less susceptible to catching fire – even when they are severely damaged.

"[1][4] In July 2021, a BYD Han EV with blade batteries was crash-tested in China (car-to-car crash test) versus an Arcfox Alpha-S. About 48 hours after the test, the BYD Han was producing smoke and allegedly caught on fire.

Specifically, the "red" coolant used was identified as electrically conductive, which caused further reaction when the blade battery and wirings were damaged.

BYD also stated the testing was "not mainstream, non-authoritative, and not within the industry standard", and wishes for the media to communicate with the company to understand the specification to the car before testing for a more objective and reasonable result.