Current collector for battery and battery using same

A current collector for a battery comprising:

• (1) a layer (1) formed from an electrically conductive material including a polymer material 1 including at least one compound selected from the group consisting of following (a), (c), and (d), and electrically conductive particles 1,
• (a) a polymer compound having an alicyclic structure
• (c) a phenoxy resin and an epoxy resin, and
• (d) an amine having an amine equivalent of 120 g/eq or less and an epoxy resin (provided that, a blending ratio of the epoxy resin and the amine is 1.0 or more in terms of a ratio of the number of active hydrogen atoms in the amine to the number of functional groups in the epoxy resin);
• (2) a layer (2) which is formed on at least one surface of the layer (1), and which is a metal thin film layer or the layer (2) formed from an electrically conductive material including a polymer material 2 and an electrically conductive carbon particles 2;
• and
• (3) a layer (3) formed from an electrically conductive material including a polymer material 3 and electrically conductive particles.

A current collector for a battery comprising:

• (1) a layer (1) formed from an electrically conductive material including a polymer material 1, which includes a saturated hydrocarbon polymer compound (b) having a hydroxyl group, and electrically conductive particles 1;
• (2) a layer (2) which is formed on at least one surface of the layer (1), and which is a metal thin film layer, or the layer (2) formed from an electrically conductive material including a polymer material 2 and electrically conductive carbon particles 2;
• and
• (3) a layer (3) formed from an electrically conductive material including a polymer material 3 and electrically conductive particles, wherein
• the layer (1) has the following area A and area B.
• Area A:
• An area which is located on one surface of the layer (1) and includes the electrically conductive carbon particles, or
• which includes the electrically conductive particles including a metal element, the concentration thereof being higher than that in the area B.
• Area B:
• An area which has the electrically conductive particles including the metal element.

A current collector for a battery comprising:

• (1) a layer (1) formed from an electrically conductive material including a polymer material 1, which includes a saturated hydrocarbon polymer compound (b) having a hydroxyl group, and electrically conductive particles 1;
• (2) a layer (2) which is formed on at least one surface of the layer (1), and which is a metal thin film layer, or the layer (2) formed from an electrically conductive material including a polymer material 2 and electrically conductive carbon particles 2;
• and
• (3) a layer (3) formed from an electrically conductive material including a polymer material 3 and electrically conductive particles, wherein
• the current collector has the metal thin film layer of the layer (2) on at least one surface thereof.

A current collector for a battery comprising:

• (1) a layer (1) formed from an electrically conductive material including a polymer material 1, which includes a saturated hydrocarbon polymer compound (b) having a hydroxyl group, and electrically conductive particles 1;
• (2) a layer (2) which is formed on at least one surface of the layer (1), and which is a metal thin film layer, or the layer (2) formed from an electrically conductive material including a polymer material 2 and electrically conductive carbon particles 2;
• and
• (3) a layer (3) formed from an electrically conductive material including a polymer material 3 and electrically conductive particles, wherein
• the electrically conductive particles in the layer (3) include electrically conductive carbon particles, and
• the content of the electrically conductive carbon particles 2 included in the layer (2) is higher than that of the electrically conductive carbon particles included in the layer (3).