| 摘要 |
The invention provides a positive electrode material and a battery using the same which can achieve a higher discharge voltage and which can obtain excellent charge-and-discharge properties, without reducing the capacity. A positive electrode ( 12 ) and a negative electrode ( 14 ) are configured through a separator ( 15 ) in between. The positive electrode ( 12 ) contains a compound expressed by a general formula Li<SUB>1+x</SUB>Mn<SUB>y</SUB>Fe<SUB>z</SUB>PO<SUB>4 </SUB>(wherein x, y and z are values within ranges of 0<x<0.1, 0.5<y<0.95, and 0.9<y+z<=1, respectively). According to the compound, the higher discharge voltage can be obtained due to Mn, the Jahn Teller effect of Mn<SUP>3+</SUP> can be attenuated and furthermore distortion of the crystal structure and the reduction of the capacity can be inhibited due to Fe and the excess Li. |
