Patent ID: 6291101
Filing Date: 2001-09-18
Classification: H01M,Y02E

Abstract:
A lithium secondary battery comprising a substantially amorphous oxide powder as a lithium ion occluding agent for a negative electrode, the substantially amorphous oxide powder being a porous oxide powder which is a composite oxide powder including at least one element selected from the group consisting of Sn, Fe, W, Nb and Mo and at least one element selected from the group consisting of B, Si, Ge, P, As, Sb, V and Zr in which a product V.multidot.d of a total volume V in cm.sup.3 /g of pores with a diameter of 100 nm or less and a true density d in g/cm.sup.3 measured by a helium displacement method is 0.1 through 0.5.