The 4th Asia Pacific Energy Storage and Conversion Conference, jointly organized by Xiamen University and Qingdao University, is about to kick off in the beautiful coastal city of Xiamen. This conference will bring together scientists, researchers, and entrepreneurs from globally renowned universities, research institutes, and industries to explore the latest developments in the fields of electrochemical fundamentals and advanced characterization technologies, secondary batteries, energy electrocatalysis, hydrogen energy, and green energy.
As the Director of the Beijing Branch of the American Society for Non destructive Testing, Dr. Xiang Yong, the founder of our company, was invited to give a speech at the conference. He will share with the attendees the research on the application of ultrasonic characterization technology in the safety of lithium batteries.

      The safety of lithium batteries is one of the core issues that urgently need to be solved in the current field of new energy. It runs through various stages from research and development, production, in-service operation, and scrapping scenarios, involving multiple challenges. In this context, Dr. Xiang Yong will focus on the detection ability of ultrasonic characterization technology in the manufacturing process of lithium battery cells, especially in the application of electrolyte infiltration. He will provide a detailed analysis and elaboration on the three stages of lithium permeation.
Firstly, in the first stage, the electrolyte will fill the gaps between the shells, achieving initial liquid infiltration. Subsequently, the electrolyte will gradually diffuse between the electrode layers, further filling the gaps inside the battery cell. Finally, the electrolyte will diffuse in the small gaps between the positive and negative electrode materials, which is the final step of the permeation process. This stage takes the longest time, and the subsequent formation process plays a crucial role in the completion of infiltration.
Due to the significant difference in acoustic impedance between the solid-liquid interface and the solid-gas interface, acoustic detection methods can more accurately capture the transition process of the solid-gas interface towards the solid-liquid interface during the seepage process. This provides a new perspective and method for quality control in the manufacturing process of lithium batteries.
In addition, research has shown that ultrasonic characterization technology also has good characterization capabilities in gas production, lithium precipitation, SOC (state of charge) and SOH (state of health) estimation, and solid-state battery solidification degree. This further highlights the important position of ultrasonic detection technology in the field of energy storage and conversion.
The 4th Asia Pacific Energy Storage and Conversion Conference is an important conference with international influence in the field of energy, and a platform for exchanging and discussing the latest and cutting-edge technologies and scientific research progress in the field of electrochemical energy materials. Qingneng Bochuang is extremely proud to participate in such in-depth exchanges and will continue to contribute actively to the innovation and development of energy chemistry and materials research.
As a company focused on energy storage and conversion, we are always committed to providing the most advanced ultrasonic testing technology to global customers. We believe that through continuous research and innovation, our technology will play a greater role in improving the safety of lithium batteries and contribute to promoting global energy transformation.