Patent ID: 9586498
Date: 2017-03-07
CPC Classifications: B60K,B60L,B60Y,H01M,Y02E,Y02T

Claim:
1. A battery that supplies electric power to a battery-driven work vehicle, the battery comprising: a plurality of battery cells each of which includes a top surface, a bottom surface facing the top surface, and four side surfaces connecting the top surface and the bottom surface; a battery casing, which includes a bottom, a top facing the bottom, sides connecting the bottom and the top, and a partition member placed between the top and the bottom to partition an inside of the battery casing, and stores the plurality of battery cells between the top and the partition member and between the partition member and the bottom; an inlet hole which is open to any one of the side surfaces to introduce a gas into the battery casing; an outlet hole which is open to another side surface facing the one of the side surfaces to which the inlet hole is open, and discharges the gas from the inside of the battery casing; a fan which introduces the gas from the inlet hole into the battery casing to make the gas flow in contact with the top and bottom surfaces of the plurality of battery cells, and then discharges the gas from the inside the battery casing; and a plurality of rod-shaped members which are extended from the inlet hole to the outlet hole, and which separate a gas passage formed below the bottom surface of each battery cell and above the bottom of the battery casing into a plurality of passages and separate another gas passage formed below the bottom surface of each battery cell and above the partition member into another plurality of passages.