Terminal-cover assembly for secondary battery

摘要

A terminal-cover assembly for a secondary battery comprises a cover and at least two terminal assemblies. The cover is arranged on one side of the battery housing and has several through-holes where two terminal assemblies are installed. Each terminal assembly has an electric-conduction terminal penetrating the through-hole. The electric-conduction terminal has an installation member at one end thereof and at least one fixing element with a female thread. A fastening element with a male thread is inserted through the installation member and engaged with the female thread of the fixing element. The fixing element and fastening element are made of an identical material. Thereby, the fastening element and the fixing element can cooperate with electric-conduction plates to cascade secondary batteries to form a battery assembly, neither damaged by hardness difference nor loosened by different extents of deformations resulting from different thermal expansion coefficients.

主权项

1. A terminal-cover assembly for a secondary battery, which is arranged on one side of a housing of a secondary battery, comprising
a cover installed on said side of said housing and having a plurality of through-holes; at least two terminal assemblies respectively installed in said through-holes and each including
an electric-conduction terminal that protrudes from said cover and has an installation member, wherein said installation member contains at least one fixing element having a female thread; andat least one fastening element having a male thread, passing through said installation member and engaged with said female thread of said fixing element; and an insulating film, which wraps said cover and said electric-conduction terminals and secures said electric-conduction terminals to said cover, wherein said insulating film reveals two ends of each said electric-conduction terminal.