| 发明名称 |
LITHIUM BATTERIES WITH NANO-COMPOSITE POSITIVE ELECTRODE MATERIAL |
| 摘要 |
Provided is a positive electrode for a lithium ion battery, the electrode comprising a nano-crystalline layered-layered composite structure of a material having the general formula xLi<SUB>2</SUB>MO<SUB>3</SUB>(1-x)LiM'O<SUB>2</SUB> in which 0<x<l, where M' is one or more ion with an average oxidation state of three and with at least one ion being Mn or Ni, and where M is one or more ions with an average oxidation state of four. Another aspect provides a positive electrode for a lithium ion battery, the electrode comprising a nano-crystalline layered-spinel composite structure of a material having the general formula XLi<SUB>2</SUB>MnO<SUB>3</SUB>. (1 -X)LiMn<SUB>2 -y</SUB>M<SUB>y</SUB>O<SUB>4</SUB> in which 0.5<x<1.0, 0=y<1, and where M is one or more metal cations. Also provided is the positive electrode which comprises a nano-coating of inert oxide, inert phosphate or inert fluoride on the nano-crystalline composite structure. Additional aspects provide a lithium ion battery comprising a negative electrode, an electrolyte and the positive electrode, as well as methods of preparing the positive electrode composite structure and the nano-coating of inert oxide, inert phosphate or inert fluoride. |
| 申请公布号 |
WO2008086041(A1) |
申请公布日期 |
2008.07.17 |
| 申请号 |
WO2008US00445 |
申请日期 |
2008.01.11 |
| 申请人 |
NANOEXA, INC.;KUMAR, SUJEET;RAMAN, SANTHANAM;YANG, SHOUFENG;SRIVASTAVA, DEEPAK |
发明人 |
KUMAR, SUJEET;RAMAN, SANTHANAM;YANG, SHOUFENG;SRIVASTAVA, DEEPAK |
| 分类号 |
H01M4/02;H01M4/48;H01M4/485;H01M4/50;H01M4/505;H01M4/52;H01M4/525;H01M10/00;H01M10/0525;H01M10/36 |
主分类号 |
H01M4/02 |
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