Battery pack and power consuming device
By using a thermal insulation layer composed of aerogel and fiber filaments in the battery pack, the problem of heat spread in the battery pack is solved, achieving good thermal insulation and thermal conductivity, and improving the safety and lifespan of the battery pack.
CN122393473APending Publication Date: 2026-07-14CALB GROUP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CALB GROUP CO LTD
- Filing Date
- 2026-04-13
- Publication Date
- 2026-07-14
AI Technical Summary
Technical Problem
Existing battery pack insulation structures are ineffective, causing heat to spread rapidly within the battery pack, affecting safety and lifespan.
Method used
A heat insulation layer is set between adjacent battery cells in the battery pack. The heat insulation layer is composed of aerogel and fiber. By limiting the range of thickness retention rate A, thermal conductivity BW/(m·K) and specific surface area Cm2/g (180≤A*C/B≤70370), the heat insulation layer is ensured to have good heat insulation effect and thermal conductivity.
Benefits of technology
It effectively prevents heat from spreading within the battery pack, improving battery pack safety and extending its lifespan.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122393473A_ABST
Abstract
This application provides a battery pack and an electrical device, relating to the field of battery technology. The battery pack includes at least two battery cells, each comprising a first battery and a second battery, arranged sequentially along a first direction and being adjacent to each other in that direction; a heat insulation layer located between the first and second batteries; the heat insulation layer is made of at least aerogel and fibers; the heat insulation layer has a thickness retention rate A, a thermal conductivity BW / (m·K), and a specific surface area Cm. 2 / g, where 180≤A*C / B≤70370. By limiting 180≤A*C / B≤70370, this embodiment of the application ensures that the heat insulation layer has both good heat insulation effect and a certain degree of thermal conductivity. After heat is transferred from the first and second batteries to the heat insulation layer, the heat on the heat insulation layer is easily dissipated, which can improve the safety of the battery pack and extend its service life.
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