LG Energy Solution is to supply 46100 round cells to Mercedes.
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Batteries
LG Energy Solution to Supply 46100 Round Cells to Mercedes
According to a media report, LG Energy Solution will supply innovative round cells with a diameter of 46 millimeters and a height of 100 millimeters for Mercedes-Benz’s next-generation electric vehicles. This format is novel. Delivery is expected to begin around 2028.
Image: LG Energy Solution
By Cora Werwitzke
10/03/2026 - 11:00 AM
- [LG Energy Solution](https://www.electrive.net/tag/lg-energy-solution/ "LG Energy Solution")
- [Mercedes Benz](https://www.electrive.net/tag/mercedes-benz/ "Mercedes Benz")
- [Battery Cells](https://www.electrive.net/tag/batteriezellen/ "Battery Cells")
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This is reported by the generally well-informed South Korean portal The Elec, which specifies that the 46100 round cells are a new cylindrical battery cell format in the 46-series that LG Energy Solution has not yet introduced. According to the portal, the company is expected to begin building production lines next year and start delivering these batteries in 2028.
The Elec cites industry insiders for this news, noting that there are plans to build a first production line for 46100 battery cells at the plant in Wrocław, Poland, with Mercedes-Benz as the buyer. LGES is also said to be considering investments in module assembly, where the cells are combined into modules. However, these details have not been officially confirmed.
In background: The 46-series battery cells primarily used by several automakers, especially Tesla, are the 4680 round cells (with a height of 80 mm). Formats such as 4695 and 46120 (with heights of 95 mm and 120 mm respectively) are also available but less common. However, LGES is among the suppliers that have a wide range of 46-series cells. For example, at the end of last year, the South Korean company began producing 4695 cells at its Ochang plant, and according to previous reports, “production of various cylindrical 46-series cells (from 4680 to 46120 cells)” is set to start at its Arizona plant later this year. It was previously unknown that LGES is also preparing a version with a height of 100 millimeters.
The Elec reports that LG Energy Solution is also preparing facilities in Ochang for the new 46100 cell type to meet the specifications of the planned mass production line in Poland. It is not surprising that Mercedes-Benz is set to be the main buyer. The two companies have already signed four long-term supply contracts since October 2024. However, the partnership is not exclusive: in April, the Stuttgart-based company also signed its first long-term supply contract for electric vehicle batteries with Samsung SDI. CATL is also part of the supplier network. Previously, the company had sourced battery cells from SK On and Farasis as well.
thelec.net
Keywords
- LG Energy Solution
- Mercedes Benz
- Battery cells
- Battery
- Poland
- Wrocław
- South Korea
- Ochang
7 Comments
on “LG Energy Solution to Supply 46100 Round Cells to Mercedes”
David
10/03/2026 at 11:16
It’s worth noting that Tesla promised truly amazing performance for the 4680 cell. Yet in production, this cell actually had a lower energy density than its smaller predecessors. This issue really came to light when BMW also started using 46-series cells. The battery in the BMW i3 is similar in size to that in the Model 3, but it has a massive 109 kWh capacity instead of 72 kWh — a complete contrast. And Mercedes, together with LG, will surely try to surpass even BMW’s figures.
Replies
Roman
10/03/2026 at 19:24
Thanks for the laughs! I find people who can artificially create a fuss by using cherry-picking and half-truths absolutely hilarious.
Answers
Philipp
10/05/2026 at 17:43
You could see it that way. But it’s hard to deny that Tesla is currently quite dependent on others when it comes to charging speed and energy density.
Answers
EVFan
10/03/2026 at 20:30
What are the half-truths in David’s comment? Due to the vehicle height, BMW can use cells that are 95mm high, while Tesla only uses cells that are 80mm high. But this explains only a small part of the huge capacity difference. Since Tesla started using 4680 cells in the Model 3/Y, its batteries have lower capacity compared to those from LGES and Panasonic before. So you get less for the same money.
Answers
Friedhelm Schröter
10/04/2026 at 07:58
A few years ago, the introduction of the Blade LFP battery seemed to signal the end of NMC. Now, NMC is making a comeback with larger cell formats and likely improved cell physics that enhance fire safety. It remains unclear whether NMC or LFP will ultimately be the winner, or if there will be an eternal rivalry between the two lithium-ion technologies—similar to gasoline and diesel—but with extremely different characteristics. Interestingly, Tesla is using 4680 cells for its semi-truck as well, while the Tesla Model Y in China is likely equipped mainly with LFP. Whether the decision to use 4680 cells in the semi-truck was an engineering or commercial one, or if the largely devastating U.S.-China trade war, that is, politics, made this decision necessary, we will likely only find out when Tesla
offers his semi-truck outside the USA and can also sell it in larger quantities (what kind of battery will he have in Europe and China?).Answers
David
10/04/2026 at 7:31 PM
Well, the trade war certainly exists. It should be noted that Tesla also supplies battery storage systems in the US, which use LFP cells. In trucks, where lifespan plays a much bigger role than in cars, Tesla uses NMC cells, while the rest of the competition has largely switched to other types for such commercial vehicles. This could have two reasons: either they haven’t invested much in developing this nine-year-old design anymore, or because they’re busy with 4680 cell production, they need to use these cells everywhere to maximize utilization. They can’t sell them—their specific energy density is 33% lower compared to competitors. It’s not about comparing the capacity of each individual cell.
Answers
dasSchaaf
10/04/2026 at 23:00
As long as Scania and MAN continue to explicitly install NMC in their trucks, you can indulge your cheap and utterly stupid contempt for them. FD
Answers
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