采用水热法在160℃下合成了单相橄榄石结构的LiFePO4和LiFe0.95Ni0.05PO4.经550℃聚丙稀裂解碳包覆后得到LiFePO4/C的颗粒尺寸在200 nm左右,碳包覆镍掺杂LiFe0.95Ni0.05PO4/C的颗粒尺寸在100 nm以下.电化学测试结果表明:LiFePO4/C和LiFe0.95Ni0.05PO4/C的0.1 C首次充放电可逆容量分别达到154 mAh·g-1和149 mAh·g-1,但掺镍的LiFe0.95Ni0.05PO4/C具有更优异的大电流充放电循环特性,0.5 C和1 C充放电100次后的放电容量分别达到147 mAh·g-1和134 mAh·g-1.
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