Secondary battery electrode, and method for producing same
摘要
說明書
In the lithium secondary battery (I and II) according to an exemplary embodiment of the present invention, for a ratio being obtained by dividing an absolute value of a difference between porosity in a surface region and porosity in a central region by porosity in a central region, based on a cross section in a thickness direction, the active material film may have a ratio of 10% or less.
In the lithium secondary battery (I and II) according to an exemplary embodiment of the present invention, the active material film may further include one or more selected from the group comprising pyrocarbon and conductive materials.
In the lithium secondary battery (I and II) according to an exemplary embodiment of the present invention, the active material film may have an apparent porosity of 10 to 45%.
In the lithium secondary battery (I and II) according to an exemplary embodiment of the present invention, the active material film may include electrode active material particles and pyrocarbon which binds the electrode active material particles.
In the lithium secondary battery (I) according to an exemplary embodiment of the present invention, the adhesive may include a resin having, curability.
In the lithium secondary battery (I) according to an exemplary embodiment of the present invention, the adhesive may include one or more conductive components selected from the group comprising conductive resin, conductive particles, and conductive nanostructures.
In the lithium secondary battery (I and II) according to an exemplary embodiment of the present invention, the electrode active material may be a negative electrode active material and a positive electrode active material.
