Application of Laser Welding in Electric Vehicle Battery Manufacturing: A Review
Source abstract
Abstract
Electric vehicle battery systems are made up of a variety of different materials, each battery system contains hundreds of batteries. There are many parts that need to be connected in the battery system, and welding is often the most effective and reliable connection method. Laser welding has the advantages of non-contact, high energy density, accurate heat input control, and easy automation, which is considered to be the ideal choice for electric vehicle battery manufacturing. However, the metal materials used for the electrodes of the battery and the connectors used to connect the battery are not the same, so the different materials need to be welded together effectively. Welding different materials together is associated with various difficulties and challenges, as more intermetallic compounds are formed, some of which can affect the microstructure, electrical and thermal properties of the joint. Because the common material of the battery housing is steel and aluminum and other refractory metals, it will also face various problems. In this paper reviews, the challenges and the latest progress of laser welding between different materials of battery busbar and battery pole and between the same materials of battery housing are reviewed. The microstructure, metallographic defects and mechanical properties of the joint are discussed.
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Research context
OpenAlex topics: Titanium Alloys Microstructure and Properties · Welding Techniques and Residual Stresses · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
Shanghai Collaborative Innovation Center of Laser Advanced Manufacturing Technology, Shanghai 201620, China
Warwick Manufacturing Group (WMG), University of Warwick, Coventry CV4 7AL, UK
School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
SANY Heavy Industry Co, Ltd., Shanghai 201306, China
Funding
Foundation of Natural Science Foundation of China · Shanghai Sailing Program · China Postdoctoral Science Foundation · Class III Peak Discipline of Shanghai—Materials Science and Engineering
References (89)
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