| 摘要 |
PROBLEM TO BE SOLVED: To provide a secondary battery suppressed in deterioration of battery capacity.SOLUTION: A secondary battery of an embodiment includes: an outer container; and an electrode structure and an electrolyte accommodated at the inside of the outer container. The electrode structure (24) includes a positive electrode (18), a negative electrode (20) and a separator disposed between the positive electrode (18) and the negative electrode (20). The separator includes a layer (23) of organic fibers deposited on at least one of the positive electrode and the negative electrode. The layer (23) of organic fibers has contacts where the organic fibers cross and the crossing shape changes due to tensile stress. |
