Production / vyroba-nova-baterie-MEB+
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New Generation of MEB+ Batteries
1 In the cell-to-pack system, one stack is created from 26 individual cells. The entire MEB+ battery consists of eight stacks (a total of 208 cells). Once completed, the battery is protected by a top cover with an integrated cooling system.
2 Inside the battery is the CMC, the cell control module.
3 The battery frame is made of solid aluminium and, after final assembly, is fitted with a protective bottom cover.
The battery that Škoda Auto has started producing in the M8 hall is compatible with the existing MEB platform installation. The battery, known as MEB+, features new chemistry and a completely different production method. It is still essentially a lithium-ion battery, but instead of the existing NMC (nickel‑manganese‑cobalt) chemistry, it uses LFP (lithium‑iron‑phosphate) technology.
Favourable chemical composition
LFP chemistry has a number of advantages over existing technology. It is cheaper, and the raw materials for cell production are more readily available and less scarce. At the same time, this material composition is more environmentally friendly over the production cycle. LFP batteries also exhibit higher temperature stability than NMC cells, making them safer to operate. Cells with the new technology have a slightly lower energy density than existing ones, but this is largely offset by the transition to cell‑to‑pack production technology in the new battery.
Different production process
The cell‑to‑pack method means that individual battery cells are integrated directly into the battery block (stack) without going through the intermediate stage of battery modules. Škoda Auto processes the cells in‑house, forming 26‑cell assemblies that are then installed in the battery. This solution is more space‑ and cost-efficient than the existing solution.
Efficient production
The finished battery weighs about 450 kg and, compared with the original solution, will lead to a long-term reduction in production costs. Škoda Auto will supply the battery to a number of models with the MEB platform throughout the VW Group.
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