Filter and battery slurry filter device using same

The utility model relates to a filter and a battery slurry filter device using the same. The battery slurry filter device comprises a filter; the filter comprises an end cover and a filter cylinder body; an internal skeleton is formed in the cylinder body; a filter screen is arranged outside the internal skeleton; and a filter feed port which is connected with the outside of the filter screen and a filter discharge port which is connected with the internal cavity of the internal skeleton are formed in the end cover. According to the filter and the battery slurry filter device provided by the utility model, the filter feed port is connected with the outside of the filter screen; the filter discharge port is connected with the internal cavity of the internal skeleton, so that materials can enter the filter through the filter feed, and then can be discharged from the filter discharge port through filter screen and the internal skeleton from outside to inside; as the internal skeleton is arranged in the internal side of the filter screen, the filter screen is not deformed when the pressure of material is applied to the filter screen; as the material enters the filter device through the external side of the filter screen, the external surface area of the filter screen is large, thus, the contact area between the filter screen and the material is enlarged, and the filter efficiency is improved.