Disclosed is a lithium secondary battery including: a positive electrode; a negative electrode; a porous separator disposed between the positive electrode and the negative electrode; a spacer disposed between the separator and at least one of the positive ...

The aqueous electrolyte secondary battery contains an element and an aqueous electrolyte solution. The element includes a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative...

A battery substrate for separating a positive electrode and a negative electrode from each other in a rechargeable battery includes a porous substrate having a first surface and a second surface opposing each other and a first coating layer and a second co...