Flexible aerogel layered thermal and mechanical damping module structure for lithium-ion battery cells.

Abstract

This invention relates to a battery module structure that provides thermal management, heat insulation and damping of cellular volumetric changes in battery packs used in electric vehicles. The invention consists of a module outer shell (10), cylindrical battery cells (20), a flexible silica aerogel-based thermal insulation and damping layer (30) integrated between and around the cells, and a bottom carrier / cooling plate (40). The increase in heat and micro-expansions occurring in the battery cells (20) during charging and discharging cycles are absorbed by the damping layer (30) located in the intercellular expansion and heat transfer region (50), preventing the transfer of heat and mechanical stress to adjacent cells.