Abstract: A plurality of slit-shaped space regions are provided on an anode active material layer on a front surface or a rear surface of an anode sheet so as to reach end planes to make it easy to inject an electrolyte into a scrolled body or a jelly roll of a non-aqueous electrolyte secondary battery through the slit-shaped space regions.

Abstract: A nonaqueous electrolyte secondary battery uses a lithium manganese composite oxide as its positive electrode active material, and is improved in cycle life at a high temperature, and also improved in capacity retention properties. A negative electrode active material of the battery is capable of doping and undoping a lithium ion. The buttery contains in its inside at least one of: an oxide of at least one element selected from the group consisting of La, Sr, Nd, and Sm; a carbonate of at least one element selected from the group consisting of La, Sr, Nd, and Sm; and, a composite oxide of manganese combined with at least one element selected from the group consisting of La, Sr, Nd, and Sm. The battery uses an electrolyte, the electrolyte containing LiPF6 or LiBF4 as its supporting salt.