These days, EVs usually rely on lithium-ion batteries and compete over which is more resilient. Promising models such as the Nissan Leaf are currently using them, but a trial of the largest taxi fleet in the world is proving the iron-phosphate batteries are better.
According to a report made public this week, the electric taxis in Shenzen, China, prevented 1 million kilos of carbon dioxide from entering the atmosphere during their first year. The results were achieved by 50 e6 electric cars made by BYD, which together drove 2.77 million km (over 100,000 km each car).
These numbers are a success from many points of view. As I mentioned earlier, the striking thing about these cars is that none of them used lithium-ion batteries, despite their popularity. What they drove on were in fact iron-phosphate batteries, which, surprisingly, are more profitable as price and safety. In my opinion, this is an issue worth dwelling on, because it could benefit the “industry” even more.
Also, worries about long charging times have been swept away: the cars took 20 to 30 minutes a day to recharge, a record in the history of EVs. More importantly, this was not followed by a drop in energy during the one-year trial, but continued to drive on for 300 km before stopping at the station, be it summer or winter.
Since both clients and the cars’ drivers had no complaints regarding the vehicles, BYD plans to extend the trial to 300 more vehicles. This really is more than a local automaker’s success – the trial stands as solid proof that EVs can actually endure the demands of a busy city life.
[via The Independent]