| 摘要 |
The embodiment of the present invention provides a lithium-rich solid solution cathode material, the chemical formula of the lithium-rich solid solution cathode material is xLiMSiO4⋅(1-x)Li2MeSiO4, where 0<x<1; M is selected from one or more of trivalent metal elements; Me is selected from one or more of divalent transition metal elements. The lithium-rich solid solution cathode material can improve circulation life, discharge capacity, rate performance and first charge-discharge efficiency of lithium ion battery, and is suitable to use under the condition that voltage is higher than 4.6V. The embodiment of the present invention also provides a method of manufacturing the lithium-rich solid solution cathode material, and lithium ion battery cathode material comprising the lithium-rich solid solution cathode material and lithium ion battery. |
