The present invention concerns a method of selecting cells for construction of a battery system, the method comprising :measuring capacity of battery cells; associating, in a database, each battery cell with its respective capacity measurement; calculating...

In one embodiment, an active cathode material comprises a mixture that includes: at least one of a lithium cobaltate and a lithium nickelate; and at least one of a manganate spinel represented by an empirical formula of Li(MnA')Oand an olivine compound rep...