Connection-strap-free fast-connection energy storage battery case for hard-packaged lithium batteries with non-threaded-connection posts

Disclosed is a connection-strap-free fast-connection energy storage battery case for hard-packaged lithium batteries with non-threaded-connection posts. The energy storage battery case includes a case frame and a plurality of storage subunits, containing the hard-packaged lithium batteries, installed in the case frame. In each storage subunit, a spring strip is arranged on a pedestal of the case; the top parts of the hard-packaged lithium batteries are equipped with a line contact bank where connecting terminals are embedded; and the connecting terminals are corresponding to posts of the hard-packaged lithium batteries one by one. The spring strips act on and apply elastic force to the bottoms of the hard-packaged lithium batteries, so that the posts closely contact with the connecting terminals. A distributed stereometrical layout is adopted in the energy storage battery case, and close contact of the posts of the hard-packaged lithium batteries and the corresponding connecting terminals is always ensured by means of the elastic force from the spring strip. Troubles of threaded connection and connection strap welding are avoided. Series-parallel connection of hard-packaged lithium batteries is realized by connecting each connecting terminal. Each lithium battery subunit can be fast inserted, pulled out, and replaced in individual. The energy storage battery case can be manufactured in a two-case or multi-case form according to requirements.