| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a negative electrode active material for a lithium secondary battery, high in energy density and excellent in initial charge/discharge efficiency and cycle-life characteristics, and also to provide a lithium secondary battery including the negative electrode active material. <P>SOLUTION: An active material of the present invention includes a silicon-containing compound which is represented by the following chemical formula 1 and amorphous. SiC<SB POS="POST">x</SB>...(1) ( In the chemical formula (1), 0.05≤x≤1.5 is satisfied.) <P>COPYRIGHT: (C)2012,JPO&INPIT |
