Battery nickel sheet and battery module thereof

The utility model provides a battery nickel sheet and a battery module thereof. The battery nickel sheet comprises a main body part, at least one pair of electric connection parts and at least one pair of supporting parts, the pair of electric parts are oppositely arranged on the two sides of the main body part; the pair of supporting parts are oppositely arranged on the two sides of the main body part; wherein one supporting part is provided with an extending part, and the other supporting part which is oppositely arranged is provided with a matching part; and when the extension part of the battery nickel sheet is opposite to the matching part of another battery nickel sheet, the extension part of the battery nickel sheet is embedded in the matching part of the other battery nickel sheet. According to the utility model, the power connection part and the supporting part are arranged, so that the battery nickel sheet can be connected with a plurality of single batteries for supplying power; through the arrange