| 摘要 |
The invention is to provide nonaqueous-electrolyte batteries which have a high initial output at ordinary temperature and -30°C, attain a high discharge capacity even during high-rate discharge, and have a high capacity retention after a durability test such as a high-temperature storage test or cycle test, and which, even after the durability test, have the excellent initial output performance and high-rate discharge capacity. The invention relates to a nonaqueous-electrolyte battery which comprises a current collector, a positive electrode containing a lithium-containing phosphoric acid compound represented by LixMPO 4 (wherein M is at least one element selected from the group consisting of Group-2 to Group-12 metals of the periodic table, and x satisfies 0<x‰¤1.2) as a positive-electrode active material, a negative electrode containing a negative-electrode active material capable of occluding and releasing lithium ions, and a nonaqueous electrolytic solution, wherein the nonaqueous electrolytic solution contains
(1) a chain ether and
(2) a cyclic carbonate having an unsaturated bond. |
