Separator for non-aqueous rechargeable lithium battery

摘要

A separator for non-aqueous rechargeable lithium batteries and a non-aqueous rechargeable lithium battery including the separator are provided. The separator includes a separator body and a composite including an organic compound and an inorganic compound supporting the separator body, where the organic compound has a higher melting point than that of the material composing the separator body, and the inorganic compound includes an element selected from the group consisting of 1A, 2A, 3A, 4A, 3B, and 5B elements from the periodic table, and combinations thereof, and at least one moiety selected from the group consisting of oxides, hydroxides, carbonates, phosphates, sulfates, nitrates, alkoxides, and combinations thereof.

主权项

1. A separator for a non-aqueous rechargeable lithium battery, comprising:
a separator body comprising a material with a first melting point; and a composite supporting the separator body and comprising an organic compound and an inorganic compound, wherein the organic compound has a melting point that is higher than the first melting point, and the inorganic compound comprises a compound selected from the group consisting of MgAl2O4, Al2O3.AlPO4, Li2ZrO3, Al2O3.Al(OH)3, and combinations thereof, and wherein the separator body is supported by a buffer layer of the composite on at least one surface of the separator body facing a positive electrode or a negative electrode.