| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a secondary battery with a high capacity, high quick charge characteristics, and high quick discharge characteristics. <P>SOLUTION: The secondary battery comprising a positive electrode, a negative electrode, and an electrolyte interposed between the electrodes, is characterised in that either one of the positive electrode and the negative electrode contains particles of a substance participating in charge/discharge reaction, the particles comprise at least two phases participating the charge reaction or the discharge reaction, and has pores formed by dissolution of at least one phase of the phases, and also has cracks. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
