A battery cell comprising an electrode assembly having a cathode, an anode, and a separator interposed between the cathode and the anode, the battery cell further comprising a resistance measurement member measuring the resistance of electrode current collectors (110, 210) and a controller estimating a temperature of the battery cell, wherein an electrode mixture including an electrode active material (120, 220) is applied to one surface or both surfaces of each electrode current collector (110, 210) of the cathode and the anode, the cathode is provided with a first cathode terminal serving as external input/output at one end of the cathode, and a resistance measurement cathode terminal, the anode is provided with a first anode terminal serving as external input/output at one end of the anode, and a resistance measurement anode terminal, wherein the electrode assembly is configured as a structure in which a cathode sheet and an anode sheet are wound with the separator interposed therebetween, one end of the cathode sheet is provided with a first uncoated cathode portion that is not coated with the electrode mixture and one end of the anode sheet is provided with a first uncoated anode portion that is not coated with the electrode mixture, and the first cathode terminal is coupled to the electrode current collector of the first uncoated cathode portion and the first anode terminal is coupled to the electrode current collector of the first uncoated anode portion, wherein the cathode sheet is provided at an end opposite to the first uncoated cathode portion with a second uncoated cathode portion that is not coated with the electrode mixture and the resistance measurement cathode terminal is coupled to the electrode current collector of the second uncoated cathode portion, at a position opposite to the first uncoated cathode portion, wherein the anode sheet is provided at an end opposite to the first uncoated anode portion with a second uncoated anode portion that is not coated with the electrode mixture and the resistance measurement anode terminal is coupled to the electrode current collector of the second uncoated anode portion, at a position opposite to the first uncoated anode portion. wherein an electrode mixture including an electrode active material (120, 220) is applied to one surface or both surfaces of each electrode current collector (110, 210) of the cathode and the anode, the cathode is provided with a first cathode terminal serving as external input/output at one end of the cathode, and a resistance measurement cathode terminal, the anode is provided with a first anode terminal serving as external input/output at one end of the anode, and a resistance measurement anode terminal, wherein the electrode assembly is configured as a structure in which a cathode sheet and an anode sheet are wound with the separator interposed therebetween, one end of the cathode sheet is provided with a first uncoated cathode portion that is not coated with the electrode mixture and one end of the anode sheet is provided with a first uncoated anode portion that is not coated with the electrode mixture, and the first cathode terminal is coupled to the electrode current collector of the first uncoated cathode portion and the first anode terminal is coupled to the electrode current collector of the first uncoated anode portion, wherein the cathode sheet is provided at an end opposite to the first uncoated cathode portion with a second uncoated cathode portion that is not coated with the electrode mixture and the resistance measurement cathode terminal is coupled to the electrode current collector of the second uncoated cathode portion, at a position opposite to the first uncoated cathode portion, wherein the anode sheet is provided at an end opposite to the first uncoated anode portion with a second uncoated anode portion that is not coated with the electrode mixture and the resistance measurement anode terminal is coupled to the electrode current collector of the second uncoated anode portion, at a position opposite to the first uncoated anode portion.