Non-aqueous electrolyte cell
AssigneeSony Corporation
InventorTomitaro Hara
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Abstract
A non-aqueous electrolyte cell having high hermetic sealing and hermetic sealing properties and which is reduced in thickness. A unit cell of the non-aqueous electrolyte cell is accommodated in a packaging material formed by a laminated film. The packaging material includes at least a metal layer and a heat fused layer arranged on an inner side of the meta layer. The heat fused layer is made up of a plurality of layers each containing the same monomeric unit. A mixed layer where plastic materials of the plural layers co-exist is formed between the plural layers such that the heat fused layer is in the form of a continuous film not having a definite boundary surface.
Claims10
A non-aqueous electrolyte cell in which a unit cell is accommodated in a packaging material formed by a laminated film, wherein
- said packaging material includes at least a metal layer and a heat fused layer arranged inwardly thereof;
- said heat fused layer being made up of a plurality of layers each containing a same monomeric unit,
- wherein an innermost one of the plural layers of the heat fused layer is formed of a plastic material having a dynamic viscoelasticity within 5° C. from a melting point of the plastic material that is 15% or less.
Dependencies are inferred from the claim text.