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Abstract
This research aims to deeply analyze the thickness and adhesion variations of different PI tape brands and their crucial significance in the field of EV manufacturing. Through a comprehensive review of relevant literature and case studies, combined with experimental data, the study reveals that PI tape thickness ranges from 5μm to 200μm, and its application scenarios in EVs vary significantly depending on the thickness. For example, thin tapes are suitable for battery cell spacing, while thick tapes are used for motor housing protection. In terms of adhesion strength, high-adhesion tapes can secure components under vibration, while low-tack tapes facilitate repositioning during assembly. Additionally, the temperature-adhesion balance of PI tape is also a key factor affecting its application in EVs. Some tapes can maintain bond strength at high temperatures up to 250°C, while others prioritize ease of removal. The research findings provide important guidance for automakers to accurately select PI tapes that meet the specific requirements of EV manufacturing, helping to achieve a balance among performance, cost, and manufacturability.
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PI tape, widely applied in the EV field, such as battery packaging and wire harness fixation, its adhesion performance at different temperatures directly affects the stability and safety of EV components. In this study, through methods such as literature research, experimental analysis, and case studies, the adhesion performance of PI tape at different temperature ranges was deeply analyzed. The research found that below 150°C, the adhesion performance of PI tape was stable and could meet the requirements of most EV processes. From 150°C to 250°C, the adhesion moderately declined, but it could be improved by using reinforced formulations. Above 300°C, there was a significant loss of adhesion, requiring the use of specialized high - temperature adhesives or mechanical fastening. In addition, advanced PI tapes with ceramic fillers or cross - linked adhesive systems could maintain bond integrity up to 250°C, providing a scientific basis for the material selection of EVs and helping to avoid adhesion failures.
With the rapid development of the electric vehicle (EV) industry, the performance requirements for materials used in EVs have become increasingly stringent. The reliability of component adhesion in high - temperature environments is of great significance for the performance and safety of EVs. PI tape, widely applied in the EV field, such as battery packaging and wire harness fixation, its adhesion performance at different temperatures directly affects the stability and safety of EV components. In this study, through methods such as literature research, experimental analysis, and case studies, the adhesion performance of PI tape at different temperature ranges was deeply analyzed. The research found that below 150°C, the adhesion performance of PI tape was stable and could meet the requirements of most EV processes. From 150°C to 250°C, the adhesion moderately declined, but it could be improved by using reinforced formulations. Above 300°C, there was a significant loss of adhesion, requiring the use of specialized high - temperature adhesives or mechanical fastening. In addition, advanced PI tapes with ceramic fillers or cross - linked adhesive systems could maintain bond integrity up to 250°C, providing a scientific basis for the material selection of EVs and helping to avoid adhesion failures.
This research aims to comprehensively analyze the advantages and challenges of polyimide (PI) tape in high-temperature processes within the electric vehicle (EV) industry. With the rapid development of the EV market, the demand for materials that can withstand extreme temperatures and mechanical stresses in key components such as batteries and motors has increased significantly. PI tape, known for its low thermal expansion, high mechanical strength, and good thermal conductivity, is considered a promising material for EV high-temperature applications. Through a detailed literature review and analysis of existing research, this study explores how PI tape mitigates thermal stress in EV components by matching substrate expansion rates, absorbing differential thermal strains, and distributing heat loads evenly. However, the research also identifies challenges such as high raw material and manufacturing costs, construction difficulties, and compatibility issues with other materials. The findings provide valuable insights into the potential of PI tape in EV high-temperature processes and offer directions for future research and development in this field.
Polyimide tape, commonly known as PI tape, is a high-performance insulation material based on polyimide substrate. Its exceptional properties make it indispensable in EV applications:
