▎ 摘　　要

NOVELTY - The multi layer composite material (100) has inner layer consisting of an aerogel material which has a thermal conductivity. The two thermal conductive layers which containing graphene based nano carbon and possess a thermal conductivity. The inner layer is sandwiched by the two thermal conduction layer. The aeroge material contains an opacifier such as silicon carbide, titanium dioxide or carbon black and a binder such as glass fiber. USE - Multi-layer composite material having sandwich structure for pouch cell pack (claimed). ADVANTAGE - The poch cell pack design enables a high safety pack design and have excellent electrical properties. The aerogel material provides an ultra-low thermal conductivity but also have advantages such as low light and high thermal stability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a pouch cell pack; and (2) a method for preparing multi-layer composite material. DESCRIPTION OF DRAWING(S) - The drawing shows a cross section view of a multi-layer composite material having sandwich structure. Multi-layer composite material (100)