| 摘要 |
Provided is a lithium ion battery anode material preparation method, the method comprising: combining carbon fiber filament and carbon fiber short strand of different length/diameter ratios in a specific proportion. Using carbon fiber spinnable pitch as a raw material, and after being carbonized and graphitized, the acquired carbon fiber are superior to graphite in structure. Since the carbon fiber has more micro-pore structures, absorption and maintenance of electrolyte can be guaranteed, and rapid entering and exiting of lithium ions can be satisfied, therefore, the carbon fiber has an excellent circulation performance. As the size of the carbon fiber filament and the carbon fiber short strand are controlled and the proportion therebetween is optimized, the prepared anode material is excellent in processing performance, good in electrode piece appearance and capable of meeting the requirement of lithium ion battery large-scale production application. |
