Separator for non-aqueous electrolyte secondary battery, and...

H - Electricity – 01 – M

Patent

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H01M 2/14 (2006.01) H01M 2/16 (2006.01) H01M 2/18 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2356033

A separator for non-aqueous electrolyte secondary battery, wherein the separator comprises a shut-down layer, a heat-resistant microporous layer, and a spacer having a form of particles, fibers, net or porous film on the surface of the heat-resistant microporous layer. The separator has a shut-down function, heat-resistance and excellent electrochemical oxidation resistance, and a battery having improved safety can be produced.

Il s'agit d'un séparateur pour batterie secondaire à électrolyte non aqueux. Ledit séparateur comprend une couche d'arrêt, une couche microporeuse réfractaire, et une entretoise sous forme de particules, de fibres, de réseau ou de film poreux sur la surface de la couche réfractaire. Le séparateur présente une fonction d'arrêt, une résistance à la chaleur et une excellente résistance à l'oxydation électrochimique; ainsi, il est possible d'obtenir une sécurité améliorée.

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