Sekundärbatterie mit nichtwässrigem Elektrolyten

摘要

A non-aqueous electrolyte secondary battery having lithium or a material capable of absorbing and releasing lithium as a negative electrode (3) active material and using a non-aqueous electrolyte conductive to lithium ions has an improved positive electrode (5) of which the positive electrode active material is a new composite oxide expressed by the composition formula LiaRbLcMdO2 (where R is one or more metalloid elements chosen from boron B and silicon Si; L is at least one element chosen from the group consisting of metals and metalloids of the periodic table IIIB group and IVB group, alkali earth metals and metals such as Ti, Mn, Cu and Zn; M is one or more transition metal elements; R, L and M are different; and a, b, c and d are in the ranges 0