A method for determining dispersibility of an electrode material layer of an electrode for a lithium rechargeable battery, wherein, regarding the electrode, an electrode material layer including an active material, a conductive material, and a binder is formed on at least one side of an electrode current collector, the determining of dispersibility of an electrode material layer includes (a) selecting two random points (1-1') of an electrode material layer, (b) finding a difference △1 of an absolute value of two voltage values by measuring voltages between the two points (1-1') in different current directions, (c) selecting two other random points (2-2' to n-n', where n is an integer that is equal to or greater than 6) that are different from two points selected in the step (a) and repeating the steps (a) and (b) at least once to find △2 to An, (d) finding a mean value of differences △1 to An of the absolute values obtained by repeating the steps (b) and the steps (c), and (e) finding a standard deviation of △1 to △n from the mean value, and dispersibility of the electrode material layer is determined to be higher as the standard deviation value of the step (e) becomes smaller; wherein the two points selected in the step (a) have a distance therebetween that is equal to or greater than 1 mm; and wherein the steps (a) and (b) are repeated at least five times in the step (c) to find △2 to on (where n is an integer that is equal to or greater than 6). wherein, regarding the electrode, an electrode material layer including an active material, a conductive material, and a binder is formed on at least one side of an electrode current collector, the determining of dispersibility of an electrode material layer includes (a) selecting two random points (1-1') of an electrode material layer, (b) finding a difference △1 of an absolute value of two voltage values by measuring voltages between the two points (1-1') in different current directions, (c) selecting two other random points (2-2' to n-n', where n is an integer that is equal to or greater than 6) that are different from two points selected in the step (a) and repeating the steps (a) and (b) at least once to find △2 to An, (d) finding a mean value of differences △1 to An of the absolute values obtained by repeating the steps (b) and the steps (c), and (e) finding a standard deviation of △1 to △n from the mean value, and dispersibility of the electrode material layer is determined to be higher as the standard deviation value of the step (e) becomes smaller; wherein the two points selected in the step (a) have a distance therebetween that is equal to or greater than 1 mm; and wherein the steps (a) and (b) are repeated at least five times in the step (c) to find △2 to on (where n is an integer that is equal to or greater than 6). (a) selecting two random points (1-1') of an electrode material layer, (b) finding a difference △1 of an absolute value of two voltage values by measuring voltages between the two points (1-1') in different current directions, (c) selecting two other random points (2-2' to n-n', where n is an integer that is equal to or greater than 6) that are different from two points selected in the step (a) and repeating the steps (a) and (b) at least once to find △2 to An, (d) finding a mean value of differences △1 to An of the absolute values obtained by repeating the steps (b) and the steps (c), and (e) finding a standard deviation of △1 to △n from the mean value, and dispersibility of the electrode material layer is determined to be higher as the standard deviation value of the step (e) becomes smaller; wherein the two points selected in the step (a) have a distance therebetween that is equal to or greater than 1 mm; and wherein the steps (a) and (b) are repeated at least five times in the step (c) to find △2 to on (where n is an integer that is equal to or greater than 6). dispersibility of the electrode material layer is determined to be higher as the standard deviation value of the step (e) becomes smaller; wherein the two points selected in the step (a) have a distance therebetween that is equal to or greater than 1 mm; and wherein the steps (a) and (b) are repeated at least five times in the step (c) to find △2 to on (where n is an integer that is equal to or greater than 6).