59results about How to "Enough buffer space" patented technology

The utility model relates to the technical field of new energy batteries, and discloses a single battery and a battery pack, the single battery comprises: a housing having an accommodating cavity; the electrode assembly is arranged in the accommodating cavity; the cover plate comprises a top cover piece and lower plastic, and the top cover piece is provided with a liquid injection hole; the lower plastic comprises a body and an abutting table, the abutting table comprises a side plate and a bottom plate connected with the side plate, the body is fixedly connected with the side plate, the bottom plate abuts against the electrode assembly in the first direction, a slow flow cavity is defined by the side plate, the bottom plate and the top cover piece, the slow flow cavity is communicated with the liquid injection hole, the liquid injection hole and the bottom plate are oppositely arranged in the first direction, and the side plate is further provided with an opening. The opening communicates with the slow flow cavity and the containing cavity. When the electrolyte is injected, the electrolyte impacts the bottom plate in the first direction, slows down in the slow flow cavity and then enters the containing cavity through the opening, and the electrolyte is prevented from directly impacting the electrode assembly; the bottom plate abuts against the electrode assembly in the first direction, enough electrolyte buffer space can be guaranteed, and the phenomenon of liquid overflow is avoided.