| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device for measuring variation in electrode thickness capable of individually measuring the variation in each thickness of a positive electrode and a negative electrode during a charging or discharging period. <P>SOLUTION: A device 100 for measuring variation in electrode thickness which measures the variation in a positive or a negative electrode during a charging or discharging period comprises: a cell 10 for measuring variation in electrode thickness including a laminate which is composed of a first hard plate 1, a first electrode 2, a pedestal 3 for an electrode to be measured, a second electrode 4, and a second hard plate (electrode holding member) 5 laminated in this order, and sealed in contact with an electrolyte; load means 11 which adds a load to the first electrode; a charging and discharging device 14 which is electrically connected to the first electrode (not shown) and the second electrode (not shown) in the cell 10 for measuring variation in electrode thickness through a first lead 12 and a second lead 13 for charging and discharging; and a displacement gauge 15 which measures displacement during charging or discharging of the first electrode. The distance between the pedestal 3 for the electrode to be measured and the second hard plate 5 is kept unchanged even for the expansion of the second electrode 4. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
