| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery that has high energy density and excellent safety. <P>SOLUTION: This is a non-aqueous electrolyte secondary battery which has high energy density and safety by controlling the mass ratio of lithium carbonate and lithium manganate as a positive active material and is prevented from swelling by using ethylene carbonate (EC) and propylene carbonate (PC) as a solvent and controlling their contents, and is improved in safety at overcharging and at high temperatures. <P>COPYRIGHT: (C)2003,JPO |
