H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 10/00 (2006.01) H01M 2/14 (2006.01) H01M 2/16 (2006.01) H01M 2/18 (2006.01) H01M 10/40 (2006.01)
Patent
CA 2226366
Disclosed is a battery comprising a positive electrode comprising a cathode active material layer, a negative electrode comprising an anode active material layer, and a porous separator disposed between the positive electrode and the negative electrode, wherein the positive electrode, the negative electrode and the separator are disposed in a casing containing an elec- trolyte, and wherein the porous separator comprises at least one layer of an aggregate form of particles of at least one insulating substance, the layer of the ag- gregate form of particles having a three-dimensional network of voids which function as pores of the porous separator and which are capable of passing ions there- through. The battery of the present invention is advantageous not only in that the battery exhibits excellent discharge characteristics even at a high discharge current density without sacrificing safety, but also in that a large amount of active materials can be accommodated in the battery per unit volume thereof, as compared to the amounts in the case of conventional batteries, so that the battery can exhibit a high performance.
Cette pile comprend un contenant à électrolyte dans lequel on a placé une plaque positive pourvue d'une couche de matériau actif positif ainsi qu'une plaque négative pourvue d'une couche de matériau actif négatif, un élément séparateur poreux étant disposé entre ces plaques. Cet élément poreux comprend au moins une couche de particules isolantes dont la structure du réseau de pores est tridimensionnelle de manière à permettre le passage des ions. Cette pile démontre d'excellentes caractéristiques d'épuisement à densité de courant élevée, sans mettre en jeu la sécurité, elle permet que des quantités augmentées de matériaux actifs puissent être stockées par unité volumique de pile, et elle possède des performances supérieures à celles des piles classiques.
Oki Shunsuke
Yamashita Masaya
Asahi Kasei Emd Corporation
Asahi Kasei Kogyo Kabushiki Kaisha
Goudreau Gage Dubuc
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