초록 ▼

The subject invention discloses apparatus and methods to provide compression of an electrochemical cell independent of atmospheric pressure. One aspect of this invention is directed towards a lithium ion cell assembly which is surrounded by a layer of material under tension, so that the material app

The subject invention discloses apparatus and methods to provide compression of an electrochemical cell independent of atmospheric pressure. One aspect of this invention is directed towards a lithium ion cell assembly which is surrounded by a layer of material under tension, so that the material applies pressure which compresses the cell to enhance contact between the anode, separator, and cathode layers. Specifically, a heat shrink material (material which reduces in size, or contracts in at least one dimension of a three-dimensional conformation, due to the application of heat) is provided about a laminar battery and shrunk in situ to provide a battery package. Another embodiment of this invention is directed towards a lithium ion cell asembly in which a sealed package contains both the battery and a spring element. The spring element within the package applies pressure to the battery to compress it and improve contact between the anode, separator, and cathode layers.

대표청구항 ▼

[ We claim:] [1.] A battery package comprising:a laminar battery having an anode layer, a cathode layer, and a separator layer between the anode and cathode layers; anda layer of heat shrink material surrounding and in contact with at least one of said layers of the laminar battery, the heat shrink

[ We claim:] [1.] A battery package comprising:a laminar battery having an anode layer, a cathode layer, and a separator layer between the anode and cathode layers; anda layer of heat shrink material surrounding and in contact with at least one of said layers of the laminar battery, the heat shrink material having been heated to apply compressive force to enhance physical contact between the anode layer, separator layer, and cathode layer.