Lifepo4 / c composite sample synthesized using coal tar bitumen and carbon both as the carbon precursor under 300 / 3 h + 650 / 6 h also gives a good discharge curves , the discharge specific capacity reached 104 . 0 mah / g 、 100 . 2 mah / g under the measuring current of 183 ma / g 、 366 ma / g respectively , and it keeps the good cycle performance in nearly 140 cycles . few reports were related to the lifepo4 / c composite synthesized using low cost bitumen as the carbon precursor 采用煤焦油沥青和乙炔黑同时作为碳前驱体时,在300 / 3h + 650 / 6h的焙烧制度下得到的试样,在183 、 366ma / g的大电流密度下仍有104 . 0mah / g 、 100 . 2mah / g左右的放电容量,在140次循环内均表现出了很好的循环性能。