| 摘要 |
PROBLEM TO BE SOLVED: To provide a separator and a battery capable of suppressing reduction in battery characteristics.SOLUTION: The battery includes a positive electrode and a negative electrode that are disposed to face each other through a separator. The negative electrode contains at least one kind of lithium (Li), silicon (Si), and a tin cobalt alloy (SnCo). The separator is provided with a resin layer containing an inorganic material on at least one principle plane of a base material layer. A gas permeability rate of the separator is in a range of 30 sec/100 cc to 680 sec/100 cc. |
