Abstract: A battery that supplies electric power to a battery-driven work vehicle, includes: battery cells; a casing including storing the battery cells in a space surrounded by the top, the bottom, and the sides thereof; an inlet hole open to the side to introduce a gas into the casing; an outlet hole open to a side facing the side to which the inlet hole is open, and discharging the gas from an inside of the casing; and a fan introducing the gas from the inlet hole into the casing to make the gas flow in contact with the top and bottom surfaces of the battery cells, and then discharging the gas from the inside the casing, wherein the casing includes rod-shaped members extended from the inlet hole to the outlet hole, and wherein the rod-shaped members come in contact with the bottom surface of the battery cell.

Abstract: A battery includes: battery cell groups, each of which is obtained by connecting battery cells in series to each other; a battery casing storing the battery cells; a bus-bar connecting positive electrodes of the respective battery cell groups; a bus-bar connecting negative electrodes of the respective battery cell groups; and a first line connecting the positive electrode and the bus-bar, a second line connecting the negative electrode and the bus-bar, and a third line connecting the battery cells included in each of the battery cell groups. The first line and the second line are drawn to the outside of the battery casing and connected to the bus-bar, and the corresponding first and second lines are bent at the outside of the battery casing according to a position of the battery cell group in the battery casing and are connected to the bus-bar.

Abstract: A battery that supplies electric power to a battery-driven work vehicle, includes: battery cells; a casing including storing the battery cells in a space surrounded by the top, the bottom, and the sides thereof; an inlet hole open to the side to introduce a gas into the casing; an outlet hole open to a side facing the side to which the inlet hole is open, and discharging the gas from an inside of the casing; and a fan introducing the gas from the inlet hole into the casing to make the gas flow in contact with the top and bottom surfaces of the battery cells, and then discharging the gas from the inside the casing, wherein the casing includes rod-shaped members extended from the inlet hole to the outlet hole, and wherein the rod-shaped members come in contact with the bottom surface of the battery cell.

Abstract: A battery includes: battery cell groups, each of which is obtained by connecting battery cells in series to each other; a battery casing storing the battery cells; a bus-bar connecting positive electrodes of the respective battery cell groups; a bus-bar connecting negative electrodes of the respective battery cell groups; and a first line connecting the positive electrode and the bus-bar, a second line connecting the negative electrode and the bus-bar, and a third line connecting the battery cells included in each of the battery cell groups. The first line and the second line are drawn to the outside of the battery casing and connected to the bus-bar, and the corresponding first and second lines are bent at the outside of the battery casing according to a position of the battery cell group in the battery casing and are connected to the bus-bar.