Abstract: A battery pack exhaust duct includes a guide tube, an exhaust inlet, an exhaust outlet, and exhaust guide components. The exhaust guide components include first and second exhaust guide components. Each of the exhaust guide components has a first part and a second part. The first part has a first end that is nearer to the interior surface of the guide tube. The first part extends away from the interior surface, and toward the exhaust inlet. The second part has a first end that is nearer to the first part. The second part extends toward the interior surface. The second part has a second end that is apart from the interior surface. The second end of the second part of the first exhaust guide component and the second end of the second part of the second exhaust guide component are displaced along axis X along which the guide tube extends.

Abstract: A battery module as an example of an exemplary embodiment includes a cooling path for cooling and guiding a gas ejected from an exhaust valve to an outside of the battery module. The cooling path is formed such that temperature T (° C.) of the gas at a path outlet is lower than or equal to 500° C. The cooling path is provided with at least one of a filter having opening size A (mm) of smaller than or equal to 3.5 mm or a baffle plate having opening size A (mm) equivalent to smaller than or equal to 3.5 mm for limiting a size of an ejected object included in the gas when temperature T is higher than or equal to 350° C.

Abstract: A battery pack exhaust duct includes a guide tube, an exhaust inlet, an exhaust outlet, and exhaust guide components. The exhaust guide components include first and second exhaust guide components. Each of the exhaust guide components has a first part and a second part. The first part has a first end that is nearer to the interior surface of the guide tube. The first part extends away from the interior surface, and toward the exhaust inlet. The second part has a first end that is nearer to the first part. The second part extends toward the interior surface. The second part has a second end that is apart from the interior surface. The second end of the second part of the first exhaust guide component and the second end of the second part of the second exhaust guide component are displaced along axis X along which the guide tube extends.