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M+W Group opens first Li-ion battery factory

By Gerald Ondrey |

The engineering and construction company M+W Group (formerly M+W Zander; Stuttgart, Germany; www.mwgroup.net) has successfully completed its first order to build a lithium-ion battery plant. In Varkaus, Finland the Finnish battery manufacturer European Batteries Oy has commissioned its new factory with a Grand Opening and has started full volume production. The new factory in Varkaus has a surface area of 10,000 m2 and manufactures large, Li-ion-based battery packs and systems with an annual production capacity of around 100 MW/h. This means that around 3,000 full-electric cars can be fitted with Li-ion batteries, although a possible tripling of production is already planned. In July 2009, M+W Group had begun with the design and construction of cleanrooms and dry rooms for particularly sensitive phases of production. This includes the assembly of electrodes and separators as well as filling the individual cells with electrolyte at an extremely low air humidity. To ensure this, M+W Group used high performance absorption dehumidifiers, air locks and vapor-impermeable wall and ceiling systems. M+W Group has developed a concept for planning and building Li-ion battery plants, in which all the process stages are linked modularly under one…
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