| Sodium-ion batteries and battery swapping stations Posted by grahame at 10:38, 3rd June 2025 |     |
From The BBC
The sheer number of two-wheelers in Asia paves a promising pathway to achieving economies of scale. In China alone, around 55 million electric two-wheelers were sold in 2023 – nearly six times the number of all pure, hybrid and fuel-cell electric cars combined sold in the country that year – according to Shanghai-based consultancy iResearch.
Scale production was the goal of Yadea. Zhou said at the talk show that the firm was seeking to bring sodium batteries to tens of millions of ordinary commuters by not only fitting them into two-wheelers, but also building a charging ecosystem to enable people to use these models without stress.
To test the waters, in 2024 Yadea began a pilot programme with 150,000 food delivery couriers working in Shenzhen, a mega city of 17.8 million people in southern China, reported Shenzhen News. The goal was to enable them to hand in a spent Yadea sodium-ion batteries at its partners' battery-swapping stations in exchange for a fully charged one within 30 seconds, Yadea said.
Scale production was the goal of Yadea. Zhou said at the talk show that the firm was seeking to bring sodium batteries to tens of millions of ordinary commuters by not only fitting them into two-wheelers, but also building a charging ecosystem to enable people to use these models without stress.
To test the waters, in 2024 Yadea began a pilot programme with 150,000 food delivery couriers working in Shenzhen, a mega city of 17.8 million people in southern China, reported Shenzhen News. The goal was to enable them to hand in a spent Yadea sodium-ion batteries at its partners' battery-swapping stations in exchange for a fully charged one within 30 seconds, Yadea said.
The story is about scooters and road vehicles, but I do wonder about local battery trains exchanging a spent cell for a fully charged one in 30 seconds at each intermediate station
| Re: Sodium-ion batteries and battery swapping stations Posted by Oxonhutch at 11:52, 3rd June 2025 | |
In my experience, 30 seconds in the railway world is faster than the speed of light
| Re: Sodium-ion batteries and battery swapping stations Posted by grahame at 06:38, 4th June 2025 | |
In my experience, 30 seconds in the railway world is faster than the speed of light
Indeed - a battery change at an intermediate stop that's this quick would be faster that the dropping off and picking up of passengers. Of course, the need for battery changes quite frequently would mean there's a need for exchanges at places like Devizes Gateway, Somerton/Langport, Wellington and Cullompton.
