Multilayer cylindrical battery pack

4 FAQs about Multilayer cylindrical battery pack

What is a cylindrical battery pack?

Cylindrical battery packs, such as the 18650 battery pack, are designed to fix multiple cylindrical batteries at designated positions to ensure that excessive displacement does not occur under reasonable vibration and shock conditions. The position of the cell is determined by the cell bracket. In extreme cases, the cell bracket may be deformed.

What is a cylindrical battery?

Cylindrical batteries are small in size and are very suitable for battery packs with irregular spaces, making full use of the corner space. Cylindrical cells made of ternary materials have an energy density of 210~250Wh/kg. Large-scale standardized batteries make cylindrical battery packs also have the premise of automated production.

How does a dual-layer composite PCM affect battery temperature?

Experimental results depicted in Fig. 11 show that under the influence of the dual-layer composite PCM, temperatures across individual batteries uniformly rise, with the highest temperature within the battery pack controlled at 29.18 ℃ and a maximum temperature differential of 1.82 ℃.

Are PCM-based battery thermal management systems better than non-PCM systems?

Al-Hallaj and Selman conducted pioneering research on PCM-based battery thermal management systems, demonstrating significantly more uniform internal temperatures under various discharge rates compared to non-PCM systems.