Compared to traditional lithium batteries, sodium batteries offer enhanced safety, environmental friendliness, and longer lifespan
Yadea’s sodium battery technology, based on sodium-ion batteries, offers significant advantages in cost and environmental sustainability
The energy density Yadea claims is 145 wh/kg. For comparison the latest CATL lithium iron phosphate battery has 205 wh/kg. It seems that the battery Yadea is using has comparable fast charging to CATL battery, to 80 percent in 15 minutes.
Yadea also claims 1500 charge discharge cycles. For normal use that would be about 3 years. (In places where they are used for commuting) Where they are used as the power for tap taps. They probably would only last a year or less.
While the Sodium battery will not take the world by storm in this iteration, the fact that they are in production is a big deal. Especially in China where the low quality lithium ion batteries in electric scooters have become recognized fire hazard.
An aside. The traditional tap tap is a three wheeled vehicle with a scooter power train adapted to two rear drive wheels. In some Asian countries the traditional tap tap is being replaced with buggy almost like an over grown side car. The scooter just drives up into the buggy and provides the power. This allows the buggy to be used with completely different power trains even different economic
entities. An it allows the driver to just uncouple at the end of his shift an ride his scooter home. It also allows for the scooter to wear out and be replaced without taking the money making buggy out of service. I wish I could find a website selling them because it appears the be a significant innovation.
Cheers
Qazulight