Lithium cell battery

Details Lithium cell battery Lithium cell battery

H - Electricity

01

M

H01M 10/052 (2010.01) H01M 10/0565 (2010.01) H01M 10/058 (2010.01) H01M 2/16 (2006.01)

Patent

CA 2500193

The invention concerns an electrochemical lithium cell battery (10; 12; 14) comprising at least one positive electrode (5, 6), at least one liquid electrolyte including at least one lithium salt, and at least one negative electrode (1, 2) Said cell battery (10; 12; 14) is characterized in that it comprises at least one layer (3, 13) of a gelled separator (SG) comprising at least one polymer (PG), capable of being gelled by the liquid electrolyte, which is at least partly gelled by the liquid electrolyte, in contact with the negative electrode (1, 2), and in that it comprises at least a layer (4) of a plasticized separator (SP), including at least one polymer (PP) capable of being plasticized by the liquid electrolyte, at least partly in contact with the separator layer (SG). The invention is particularly applicable to hybrid and/or electric vehicles or portable appliances.

L~invention a pour objet un accumulateur électrochimique (10; 12; 14) au lithium comprenant au moins une électrode positive (5, 6), au moins un électrolyte liquide comprenant au moins un sel de lithium, et au moins une électrode négative (1, 2), ledit accumulateur (10; 12; 14) étant caractérisé en ce qu~il comprend au moins une couche (3; 13) d~un séparateur gélifié, SG, comprenant au moins une polymère PG, gélifiable par l~électrolyte liquide, qui est au moins en partie gélifié par l~électrolyte liquide, en contact avec l~électrode négative (1, 2), et en ce qu~il comprend au moins une couche (4) d~un séparateur plastifié, SP, comprenant au moins une polymère PP, plastifiable par l~électrolyte liquide, en contact au moins en partie avec la couche (3; 13) de séparateur SG. Application particulière aux véhicules hybride et/ou électrique et aux portables.

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