Battery electrode production method

摘要

A method is provided for producing a battery electrode having a configuration in which a compound material layer containing an active material and a binder is retained on a current collector. This method includes forming protrusions composed of a polymer on a surface of the current collector, forming a binder solution layer by coating a binder solution containing the binder over the polymer protrusions onto the current collector, depositing the binder solution layer and a compound material paste layer on the current collector by applying a compound material paste containing the active material over the binder solution layer, and obtaining an electrode in which the compound material layer is formed on the current collector by drying both the deposited binder solution layer and compound material paste layer.

主权项

1. A method for producing a battery electrode having a configuration in which a compound material layer containing an active material and a binder is retained on a current collector, comprising:
forming protrusions composed of a polymer on a surface of the current collector; forming a first layer of a binder solution in a liquid phase, comprising a binder and a solvent, over the polymer protrusions on the current collector, wherein the first layer of the binder solution is formed such that a distal end of the polymer protrusions protrudes above an upper surface of the first layer of the binder solution and a proximal end of the polymer protrusions contacts the current collector; depositing a liquid phase bilayer consisting of the first layer of the binder solution and a second layer of a compound material paste comprising the active material and a solvent on the current collector by applying the compound material paste over the first layer of the binder solution; and drying the liquid phase bilayer.