Lithium Metal Polymer battery

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The elementary cell (element) of Lithium Metal Polymer technology is completed by assembling ultra-thin films, with a thickness of a few microns. Films are layered, coiled, then compressed into a prismatic shape.

Total thickness of the resulting laminate is in a range of 150 µm, and depends on electrical specifications required by t he application. In fact, modifying thickness of the film allows to optimize specific performances to meet needs of a large number of application. For instance, an assembly of "thick" films allows to obtain a "high energy" configuration whereas thinner elements would lead to a high power configuration.

Elementary cell

Flexibility of this concept, based on the assembly of thin films, is remarkable as elements of different thickness, width and length can be produced on the same production equipment.

Module construction

Applications which use industrial batteries have wide energy storage requirements, both electrically (capacity, voltage, discharge rate) and mechanically (geometry, volume). So module has been designed with flexibility in mind.

Its construction is based on parallel and series-connected elements and cells. Cell contains particular capacity according to its characteristics and the number of elementary units connected in parallel. Then, cells are series-connected then inserted into a special "packaging", in order to give module its required voltage.

It is therefore easy to build modules of different shapes and different electrical characteristics without modifying industrial manufacturing equipment.

The different phases of module construction

09/20/2004