Electrode for lithium-ion cell, lithium-ion cell, and method of manufacturing electrode for lithium-ion cell

The objective of the present invention is to provide an electrode for a lithium-ion cell, the electrode having excellent electron conduction even when the thickness of the electrode is increased. An electrode for a lithium-ion cell according to the present invention comprises a first main surface located on the separator side of the lithium-ion cell, and a second main surface located on the current collector side, said electrode for a lithium-ion cell being characterized in that the electrode has a thickness of 50-5000 µm and includes, between the first main surface and the second main surface, short fibers (A) having an average fiber length 50 nm or greater and less than 100 µm, long fibers (B) having an average fiber length of 100-1000 µm, inclusive, and active-material particles (C), with the short fibers (A) and the long fibers (B) being electroconductive fibers.