| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-aqueous electrolyte secondary battery which maintains high energy density and has superior large current charge and discharge characteristics. SOLUTION: In the non-aqueous electrolyte secondary battery having a negative electrode made of a material capable of storing and releasing lithium, the negative electrode contains carbon black which is graphitized with a surface separation d<SB>002</SB>obtained by an X-ray diffractometry of 3.45Åor less, and thereby, increase of potential of the negative electrode is suppressed and conductivity of the negative electrode can be improved, therefore, large current charge and discharge characteristics is improved. COPYRIGHT: (C)2005,JPO&NCIPI |
