Glass-ceramic composite electrolyte and lithium secondary cell
AssigneeKabushiki Kaisha Ohara
InventorsYasushi Inda, Kazuo Ohara
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Abstract
There is provided a glass-ceramic composite electrolyte including a medium containing glass-ceramic powder impregnated with a non-aqueous electrolytic solution. There is also provided a lithium secondary cell having a positive electrode, a negative electrode and a separator in which the separator includes the above described composite electrolyte. The glass-ceramic powder consists of grains having an average grain diameter of 20 μm or below (calculated on the basis of volume), a maximum grain diameter of 44 μm or below and lithium ion conductivity of 1×10−4S·cm−1 or over. The glass-ceramic composite electrolyte has thickness of 100 μm or below and lithium ion conductivity of 1×10−5S·cm−1 or over.
Claims5
A glass-ceramic composite electrolyte comprising a medium containing lithium ion conductive glass-ceramic powder impregnated with a non-aqueous electrolytic solution, wherein said glass-ceramic powder has lithium ion conductivity equal to or greater than 1×10−4 S·cm−1 and consists of grains having an average grain diameter equal to or less than 20 μm calculated on the basis of volume and a maximum grain diameter equal to or less than 44 μm.
A composite electrolyte comprising a medium containing glass-ceramic powder impregnated with a non-aqueous electrolytic solution, having a thickness equal to or less than 100 μm and lithium ion conductivity equal to or greater than 1×10−5 S·cm−1.
Dependencies are inferred from the claim text.