| abstract |
(57) [Abstract] [Purpose] By improving the discharge characteristics at the end of discharge of a lithium secondary battery using spinel-type lithium-titanium oxide as the negative electrode, and providing a flat portion to the curve at the end of discharge, It facilitates detection of battery remaining capacity by electronic devices. [Constitution] Spinel type lithium-titanium oxide is used as a negative electrode of a lithium secondary battery by mixing one kind or two or more kinds of WO 3 , LiWO 2 and Nb 2 O 5 . |