The invention discloses a
graphite crucible for
carbonization of a
lithium battery negative
electrode material, and relates to the technical field of
lithium battery negative
electrode material
carbonization equipment, the
graphite crucible comprises a rack, a pot body fixedly arranged on the rack, and a gland slidably arranged on the rack along the vertical direction, the top end of the pot body is provided with an opening, and the gland is used for sealing the opening at the top end of the pot body; a
central cylinder is fixedly arranged in the pot body, a first ventilation opening and a second ventilation opening are formed in the side wall of the
central cylinder, the pot body is communicated with a ventilation pipeline, the ventilation pipeline is communicated with the first ventilation opening, an air inlet
pipe penetrates through the gland, a first valve is arranged on the air inlet
pipe, the ventilation pipeline is communicated with an
exhaust pipe, and a second valve is arranged on the
exhaust pipe. And a gas circulation module for promoting the
inert gas to circulate in the pot body is arranged in the
central cylinder. According to the invention, the temperature uniformity and the gas circulation in the
carbonization process can be effectively improved, and the risk of
caking of the negative
electrode material due to local high temperature is reduced.