Cylinder type lithium ion battery annotates liquid sleeve pipe

The utility model provides a cylinder type lithium ion battery annotates liquid sleeve pipe, includes the sleeve pipe body, the port is the liquid outlet under the sleeve pipe body, and the integrative fixedly connected with filling funnel in this internal middle part of sleeve pipe, liquid mouth downside fixedly connected with drainage post is annotated for annotating the liquid mouth to the port under the filling funnel. It between liquid mouth and the liquid outlet is the 40% -70% of the whole height of sleeve pipe body apart from H1 to annotate. The radius R2 who annotates the liquid mouth is liquid outlet internal diameter R1's 10% -40%. The high H2 of drainage post is 5 -20mm. The utility model discloses be equipped with the filling funnel at the middle part of sleeve pipe body, annotate liquid mouth below and be equipped with the drainage post, can be under the condition that does not influence normal notes liquid, effectual reduction lithium ion battery is in follow -up loss of taking out brokenly vacuum in -process electrolyte, the utilization ratio, the reduction loss that improve electrolyte.