New white paper on solutions for mass EV battery assembly released

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Government legislation across the EU declaring a fundamental shift away from internal combustion towards fully electric vehicle powertrains has presented vehicle manufacturers with complex challenges regarding materials, battery and joining technology.

With the need for light weighting a critical factor in reducing CO2 emissions, manufacturing of EVs requires a variety of innovative approaches. Battery assembly in particular, is a major focus, as they have become an integrated part of the vehicle structure.

In its new white paper entitled ‘Electric & Lightweight – The future for electric vehicle battery assembly solutions’, Atlas Copco showcases its philosophy for electromobility, in the context of volume EV battery manufacturing. The white paper identifies how every step of the process requires safe and secure joining solutions with 100% repeatable accuracy, in order to shield the sensitive battery cells from both impact and excessive heat.

While Lithium-ion is the primary battery technology, nickel-metal hydride (NiMH) batteries are also used, predominantly in hybrid vehicles. The chemical hazards are significant, therefore, due to the substances and different combinations of materials used. Consequently, there is a higher risk of exposure to hazardous substances during EV battery manufacture and possibly during vehicle assembly, if the batteries are damaged unintentionally.

In addition, the risks associated with extremely high DC voltages and electromagnetic fields demand that safety during battery assembly is a top priority. Atlas Copco enables manufacturers to mitigate against risk to assembly personnel through a range of measures, which include the use of fully isolated sockets and quick change adapters, as well as insulated tool covers and ‘Slip-Off’ protection for handheld electric assembly tools.Similarly, battery module assembly involves a number of materials, each fulfilling a particular purpose, such as thermal conductivity and protective bracing. A flexible joining solution for both soft and hard joints is crucial in achieving an assembly process which reduces time and weight, whilst ensuring joint integrity and durability.

As highlighted in the white paper, Atlas Copco’s range of innovative Smart Connected Assembly solutions delivers total uniformity, error-proofing and full traceability in every process, which provides value and reassurance to EV manufacturers.

Commenting on its electromobility philosophy, James McAllister, General Manager, Atlas Copco Tools and Industrial Assembly Solutions, said:

“The foreseeable future for vehicles is electric and manufacturers are under legislative pressure to play their part in reducing global emissions. As highlighted in our latest white paper, battery assembly for electric vehicles is complex and potentially hazardous. Atlas Copco is at the forefront of innovating assembly solutions in support of manufacturer customers operating in challenging environments, which achieves safer and more efficient productivity. Our portfolio of data driven Smart Connect Assembly solutions has proven to deliver market-leading safety, traceability and error-proofing, which is all the more compelling in the current economic climate.”

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