With the rapid growth of the new energy vehicle industry, the number of end-of-life power batteries, which serve as the technological core, is also increasing significantly. Unfortunately, this rise in retired power batteries has led to severe environmental pollution and resource wastage. The detection of shell bolts in power batteries has thus become a crucial step in the recycling and disassembly process. To address this issue, this research proposes a detection method for end-of-life power battery shell bolts. Based on market analysis, the target bolt for the retired power battery shell was identified. The bolt images were collected and preprocessed to create a custom dataset on the experimental platform. Four popular object detection algorithms were compared, and the YOLOv8 model is selected to improve with EMA module. The improved YOLOv8 model achieves 98.9% for mAP_0.5, which increases more than 2 percentage points. Based on the repeatability of bolt recognition, this detection method can be used for the identification of bolts in other battery shells, providing a theoretical foundation for promoting the robotic disassembly of battery shells.

Jie Li

Dantong Chen

Jiahui Si

Advances in Mechanical Engineering

Advances in Mechanical Engineering (AIME) is a JCR Ranked, peer-reviewed, open access journal which publishes a wide range of original research and review articles. The journal Editorial Board welcomes manuscripts in both fundamental and applied research areas, and encourages submissions which contribute novel and innovative insights to the field of mechanical engineering

Advances in Mechanical Engineering (AIME) is a JCR-ranked, peer-reviewed, open access journal that publishes a wide range of original research and review articles. The journal's Editorial Board welcomes manuscripts in both fundamental and applied research areas and encourages submissions that contribute novel and innovative insights to the field of mechanical engineering.

《Advances in Mechanical Engineering》是一本经过同行评审的开放获取期刊，具有JCR排名，发表广泛的原创研究和综述文章。期刊编辑委员会欢迎在基础和应用研究领域的稿件，并鼓励提交对机械工程领域贡献新颖和创新见解的作品。

An intelligent detection approach for end-of-life power battery shell bolts

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Journal Info

Category	Quartile
THERMODYNAMICS	3