Crucible loaded with lithium battery negative electrode material and kiln car

The utility model discloses a crucible and a kiln car for loading lithium battery cathode materials, the crucible comprises a base, an inner-layer crucible arranged on the base, an outer-layer crucible sleeve inversely buckled outside the inner-layer crucible, and an exhaust mechanism for exhausting gas inside the crucible. The exhaust mechanism comprises an exhaust pipeline and a first one-way valve connected with the exhaust pipeline, one end of the exhaust pipeline is located in the crucible, and the other end of the exhaust pipeline is exposed out of the crucible. According to the crucible disclosed by the invention, by arranging the exhaust mechanism for exhausting the internal gas of the crucible, volatile gas generated in the firing process can be exhausted to the outside of the crucible, so that the volatile gas cannot jack the upper cover of the crucible open, the sealing property of the crucible is ensured, and external oxygen is prevented from entering the crucible to cause the oxidization of a neg