Lithium Metal Polymer battery

>  Industrialization

A high-technology industry

Semi-conductor industry needs a controlled environment where level of impurities is reduced to a minimum. For our technology, interactive materials react with water vapour, leading to undesirable chemical reactions which limit the performances of the batteries. For this reason, level of humidity must be controlled and kept at an extremely low level.

The recently constructed factory has taken this into account and provides a specially equipped production area with dry rooms. It also has premises and equipment necessary for different tests which must be carried out in order to check characteristics of the products.

Lithium Metal Polymer battery factory

Among the different possibilities available for industrial manufacturing of ultra-thin films, batScap has chosen extrusion manufacturing process, tacking advantage of the experience and knowledge already gained in this field by Bolloré Group.

This production method offers several important advantages. Firstly, it is a clean process which does not use any pollutants, then safe for both workers and environment. Skilled mastery of extrusion process permits a high level of reproducibility in the quality of the produced film, up to a level of few microns. Finally, it is a competitive industrial solution as it permits high production output.

Extruder

Cathode film

Ever since initial feasibility studies, production automation has been a primary concern. The major equipment was designed by batScap. Several of them have proved to be innovative solutions and patents have been applied for.

Reel of assembled cathode and electrolyte film

Main materials used in the industrialisation of LMP technology are abundant : lithium is present in the earth's crust and sea water and vanadium oxide, used in the cathode, is a mass-produced chemical.

Recycling products has also been a major objective throughout design process, from both an economic and environmental point of view. A recycling process was studied as part of a research and development program partly supported by European Community. This process allows a large proportion of lithium metal, vanadium oxide and lithium salts to be recycled.

09/20/2004