| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery preventing a drop in electrolyte concentration caused by diffusion and electrolyte depletion, and to provide a vehicle and equipment on which the secondary battery is mounted. SOLUTION: In the secondary battery including a battery case 20 and an electrode body 10 held in the battery case 20, the amount of an electrolyte housed in the battery case 20 is increased than the lower limit amount which is the maximum amount to be impregnated in the electrode body 10, and the maximum surplus amount which is the maximum amount housed in a space between the bottom surface 26 of the battery case 20 and the electrode body 10 so as not to come in contact with the electrode body 10 while the battery case 20 is stabilized with a lid member 24 of the battery case 20 positioned upward is decreased than the upper limit amount which is the amount added to the lower limit amount. A surplus electrolyte 30 which is not impregnated in the electrode body 10 is present and usually, the electrode body 10 does not contact with the surplus electrolyte 30. COPYRIGHT: (C)2010,JPO&INPIT |
