| 摘要 |
<p>A carbonaceous material for the anode of a lithium ion secondary cell, which comprises carbon, 1 to 20 % by weight of boron and 0.01 to 20 % by weight of silicon; and a lithium ion secondary cell made by using the carbonaceous material as the anode active material. The secondary cell exhibits excellent characteristics such as an increased initial capacity, an increased initial efficiency and improved cyclic characteristics.</p> |
