Filter element of filter

The utility model relates to the technical field of lithium ion battery manufacturing and filtering processes, in particular to a filter element of a filter, which comprises a spherical supporting piece, the lower end of the supporting piece is planar, the supporting piece is hollow, a plurality of filtering holes are arranged on the outer side of the supporting piece, and a piece of side filtering cloth is further arranged on the outer side of the supporting piece. Compared with a cylindrical filter device, the filter element provided by the utility model has larger pollutant holding capacity, and the filtering time can be prolonged to a certain extent, so that the filtering is more sufficient. 本实用新型涉及锂离子电池制造过滤工艺技术领域，具体涉及一种过滤器滤芯，包括球形支撑件，所述支撑件下端为平面状，所述支撑件内部为中空设置，且在所述支撑件外侧设有多个过滤孔，在所述支撑件外侧还设有一侧滤布；本实用新型相比于圆柱型的过滤装置，本申请中的滤芯具有更大的纳污量，可在一定程度上延长过滤时间，使得过滤更加充分。