发明名称 |
METHOD FOR PREPARING GRAPHENE-LIKE DOPED POSITIVE ELECTRODE MATERIAL OF LITHIUM-ION BATTERY |
摘要 |
Disclosed is a method for preparing a graphene-like doped positive electrode material of a lithium-ion battery, comprising the following steps: stirring a liquid acrylonitrile oligomer solution for 8-72 hours at 80-300°C, to form a micro-cyclic LPAN solution; adding a certain amount of a positive electrode material as powder of a lithium-ion battery to the micro-cyclized LPAN solution, uniformly mixing, grinding, drying at room temperature; calcining for 6-24 hrs at 500-1800°C under the protection of an inert gas, till the micro-cyclized LPAN forms a graphene-like structure uniformly dispersed in the positive electrode material of the lithium-ion battery, so as to obtain a graphene-like doped positive electrode material of the lithium-ion battery. The graphene-like doped positive electrode material of the lithium-ion battery obtained through the method has not only a high conductivity and specific capacity, but also a greatly improved cycling performance. |
申请公布号 |
WO2012089085(A1) |
申请公布日期 |
2012.07.05 |
申请号 |
WO2011CN84676 |
申请日期 |
2011.12.26 |
申请人 |
SHEN ZHEN UNIVERSITY;LIU, JIANHONG;GUI, DAYONG;ZHANG, QIANLING;HE, CHUANXIN;ZHU, CAIZHEN |
发明人 |
LIU, JIANHONG;GUI, DAYONG;ZHANG, QIANLING;HE, CHUANXIN;ZHU, CAIZHEN |
分类号 |
H01M4/1399;H01M4/62 |
主分类号 |
H01M4/1399 |
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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