A Chinese media outlet is reporting that EV automaker NIO is recruiting the help of battery systems manufacturer, SVOLT Energy Technology Co., Ltd. Several sources state that NIO is recruiting the assistance from SVOLT to assist in the development of its own in-house large cylindrical EV batteries, which has reportedly decelerated as of late.
It’s interesting to hear that NIO may be struggling in the development of its large cylindrical batteries, because in many ways it has become one of the leaders in EV innovation in China… and possibly cell phones now, too?
A few months after that phone announcement in the spring of 2022, NIO founder, chairman, and CEO William Li shared plans for the company to begin developing its own batteries – more specifically, large cylindrical cells designed for an 800V EV platform targeting production in 2024.
At the time, Li said NIO has a team of around 400 in place to research, develop, and scale battery manufacturing, but it appears to have hit a snag. Meanwhile, SVOLT Energy, which exists as a battery division of fellow Chinese automaker Great Wall Motor, has been pushing battery chemistry and cell design to new levels overseas.
According to a new report, NIO is enlisting SVOLT’s expertise in batteries so the two can jointly develop the former’s in-house cells.
SVOLT Energy’s Dragon Armor battery pack, on display at the 2023 Shanghai Auto Show / Credit: SVOLT
NIO and SVOLT exploring pilot line to build EV batteries
The report comes from 36kr out of China, which states that several people in the industry close to the matter are saying NIO is on the cusp of announcing a joint venture with SVOLT Energy to co-develop large cylindrical batteries.
In initial plan being reported is for both NIO and SVOLT to jointly invest in a pilot production line Maanshan, Anhui province – the same province as NIO’s current manufacturing hub in Hefei. Sources closes to the matter say NIO and SVOLT will merge some of their R&D teams, but their supply chains and manufacturing will remain separate.
One individual source told 36kr that the goal of the joint venture is to explore a pilot production line for NIO EV batteries, with scaled production now expected to commence in 2025. Additional verification and development is expected after the reported pilot line begins operations, hence the delay in reaching scale.
Neither NIO nor SVOLT have confirmed these reports yet.
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Today was the official start of racing at the Electrek Formula Sun Grand Prix 2025! There was a tremendous energy (and heat) on the ground at NCM Motorsports Park as nearly a dozen teams took to the track. Currently, as of writing, Stanford is ranked #1 in the SOV (Single-Occupant Vehicle) class with 68 registered laps. However, the fastest lap so far belongs to UC Berkeley, which clocked a 4:45 on the 3.15-mile track. That’s an average speed of just under 40 mph on nothing but solar energy. Not bad!
In the MOV (Multi-Occupant Vehicle) class, Polytechnique Montréal is narrowly ahead of Appalachian State by just 4 laps. At last year’s formula sun race, Polytechnique Montréal took first place overall in this class, and the team hopes to repeat that success. It’s still too early for prediction though, and anything can happen between now and the final day of racing on Saturday.
Congrats to the teams that made it on track today. We look forward to seeing even more out there tomorrow. In the meantime, here are some shots from today via the event’s wonderful photographer Cora Kennedy.
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The numbers are in and they are all bad for Tesla fans – the company sold just 5,000 Cybertruck models in Q4 of 2025, and built some 30% more “other” vehicles than it delivered. It just gets worse and worse, on today’s tension-building episode of Quick Charge!
We’ve also got day 1 coverage of the 2025 Electrek Formula Sun Grand Prix, reports that the Tesla Optimus program is in chaos after its chief engineer jumps ship, and a look ahead at the fresh new Hyundai IONIQ 2 set to bow early next year, thanks to some battery specs from the Kia EV2.
New episodes of Quick Charge are recorded, usually, Monday through Thursday (and sometimes Sunday). We’ll be posting bonus audio content from time to time as well, so be sure to follow and subscribe so you don’t miss a minute of Electrek’s high-voltage daily news.
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Tesla has launched its new Oasis Supercharger, the long-promised EV charging station of the future, with a solar farm and off-grid batteries.
Early in the deployment of the Supercharger network, Tesla promised to add solar arrays and batteries to the Supercharger stations, and CEO Elon Musk even said that most stations would be able to operate off-grid.
While Tesla did add solar and batteries to a few stations, the vast majority of them don’t have their own power system or have only minimal solar canopies.
Back in 2016, I asked Musk about this, and he said that it would now happen as Tesla had the “pieces now in place” with Supercharger V3, Powerpack V2, and SolarCity:
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All of these pieces have been in place for years, and Tesla has now discontinued the Powerpack in favor of the Megapack. The Supercharger network is also transitioning to V4 stations.
Yet, solar and battery deployment haven’t accelerated much in the decade since Musk made that comment, but it is finally happening.
Tesla has now unveiled the project and turned on most of the Supercharger stalls:
The project consists of 168 chargers, with half of them currently operational, making it one of the largest Supercharger stations in the world. However, that’s not even the most notable aspect of it.
The station is equipped with 11 MW of ground-mounted solar panels and canopies, spanning 30 acres of land, and 10 Tesla Megapacks with a total energy storage capacity of 39 MWh.
It can be operated off-grid, which is the case right now, according to Tesla.
With off-grid operations, Tesla was about to bring 84 stalls online just in time for the Fourth of July travel weekend. The rest of the stalls and a lounge are going to open later this year.
Electrek’s Take
This is awesome. A bit late, but awesome. This is what charging stations should be like: fully powered by renewable energy.
Unfortunately, it will be much harder to open those stations in the future due to legislation that Trump and the Republican Party have just passed, which removes incentives for solar and energy storage, adds taxes on them, and removes incentives to build batteries – all things that have helped Tesla considerably over the last few years.
The US is likely going to have a few tough years for EV adoption and renewable energy deployment.
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