Electrochemical generator element and corresponding battery

H - Electricity – 01 – M

Patent

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Details

H01M 10/04 (2006.01) H01M 6/18 (2006.01) H01M 6/40 (2006.01) H01M 6/42 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2400430

The invention concerns an electrochemical generator element (102) comprising successively a first electrode layer having a polarity (114), a first electrolyte layer (110), a second electrode layer with reverse polarity (108), a second electrolyte layer (112), a second electrode layer with said polarity (116). The electrode layers of said polarity (114, 116) are connected by a parallel connection. It further comprises current collectors (118, 120) connected to the electrode layers with said polarity (114, 116). The thickness of the first electrode layer with said polarity (114) is different from the thickness of said second electrode layer with said polarity (116). The invention is applicable to lithium-polymer storage batteries.

Cet élément de générateur électrochimique (102) comporte successivement une première couche d'électrode d'une polarité (114), une pemière couche d'électrolyte (110), une couche d'électrode d'une polarité inverse (108), une deuxième couche d'électrolyte (112), une deuxième couche d'électrode de ladite polarité (116). Les couches d'electrode de ladite polarité (114, 116) sont connectées par une connexion en parallèle. Il comporte en outre des collecteurs de courant (118, 120) connectés aux couches d'électrodes de ladite polarité (114, 116). L'épaisseur de ladite première couche d'électrode de ladite polarité (114) est différente de l'épaisseur de ladite deuxième couche d'électrode de ladite polarité (116). L'invention s'applique aux accumulateurs du type lithium-polymère. Image

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