发明名称 |
CATHODE ACTIVE MATERIAL PROVIDING IMPROVED EFFICIENCY AND ENERGY DENSITY OF ELECTRODE |
摘要 |
<p>Provided is a cathode active material having a composition represented by the following Formula I: LiFe(P1-X O4) (I) wherein a molar fraction (1-x) of phosphorus (P) is in the range of 0.910 to 0.999. to allow operational efficiency of the cathode active material to be leveled to a lower operational efficiency of an anode active material and improve energy density of the cathode active material. Furthermore, a cathode active material, wherein a molar fraction (1-x) of phosphorus (P) is lower than 1, contains both Fe2+ and Fe3+, thus advantageously preventing structural deformation, improving ionic conductivity, exhibiting superior rate properties and inhibiting IR drop upon charge/discharge, thereby imparting high energy density to batteries.</p> |
申请公布号 |
CA2741081(C) |
申请公布日期 |
2014.07.15 |
申请号 |
CA20092741081 |
申请日期 |
2009.10.22 |
申请人 |
LG CHEM, LTD. |
发明人 |
CHOY, SANGHOON;LEE, YONG TAE;PARK, HONG-KYU;PARK, SOO MIN;KIL, HYO-SHIK;PARK, CHEOL-HEE;LEE, JI EUN |
分类号 |
H01M4/58;C01B25/26;H01M4/62;H01M10/05 |
主分类号 |
H01M4/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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