Recording of Thursday, June 20, 2024 | The smarter E Europe | Exhibition Program | Language: English | Duration: 10:02 .
Dr. Lei Pi from Shenzhen Precise Testing, a third-party battery testing lab in Shenzhen, China, presented on the topic of Accelerating Rate Calorimetry (ARC) testing for batteries. ARC is used to simulate environments where heat cannot escape from test samples like batteries and materials, crucial for understanding thermal behaviors under working conditions—particularly during failures when heat buildup can be self-reinforcing. Key aspects covered include: - Equipment Setup: The ARC chamber maintains an adiabatic environment to closely mimic real-world scenarios. - Testing Parameters: Important parameters such as sensitivity, maximum sampling frequency, and current monitoring capabilities were highlighted. - Use Cases: - Adiabatic heating tests monitor how heated batteries behave thermally. - Power production assessments evaluate energy output. - Tests also gauge specific heat capacities of various samples by measuring temperature changes. Lai discussed key points in analyzing thermal behavior including T0 (start of self-heating), T1 (end of stable heating), and Tmax (maximum temperature). Findings indicated that LFP batteries are generally more stable due to higher T0 and lower Tmax values. Additionally, smaller batteries showed more consistent thermal stability compared to larger ones. Lastly, Lai mentioned analyzing test failures for providing insights and recommendations based on the results obtained through ARC testing procedures.
Automated summarization by AI Conver
This session geared toward energy storage manufacturers will be full of valuable insights on the topic of battery diagnostics. It will be led In cooperation with VDMA, and PEM of RWTH Aachen.
Further Talks of this session: