2results about How to "Safe and efficient storage" patented technology

The application discloses a cover plate assembly, a battery monomer, a battery device and an energy storage device, and belongs to the technical field of batteries. The cover plate assembly is applied to a battery monomer and comprises a cover plate and a pressure relief structure. The cover plate is provided with a pressure relief hole, and the pressure relief structure is mounted on the cover plate. The pressure relief structure comprises a plurality of valve opening bodies which are distributed at intervals along a first direction. The valve opening bodies are connected to the cover plate and close the pressure relief hole. The valve opening bodies are provided with a plurality of notches. In the technical scheme of the application, the plurality of valve opening bodies can reduce the risk of deformation of the pressure relief structure and the battery monomer shell caused by excessive pressure change, and reduce the influence of deformation of the valve opening bodies on the normal work of the whole pressure relief structure after long-term use.

The application discloses a method for constructing an internal dumping site based on a fly ash-based cementing material carbon dioxide storage, and utilizes the cementing properties of fly ash of a pit mouth coal-fired power plant to prepare a fly ash-based cementing material with super high content, and utilizes the high-strength fly ash-based cementing material to construct a carbon dioxide storage, and utilizes a cement-free low-strength fly ash-based cementing material to backfill an open-pit mine pit, so that the resource utilization and efficient collaborative disposal of fly ash solid waste are realized; the carbon dioxide storage is constructed in the internal dumping site space, the open-pit mining space is effectively utilized, and the problem of insufficient material for land reclamation backfilling in the late mining stage is solved; the carbon dioxide storage reinforced by the anchor rod prestress has high strength and large internal space, the mine pit bottom plate impermeable layer and the overlying clay cover layer increase the airtightness, and the safe and efficient large-scale storage of critical state carbon dioxide is realized; the fly ash-based cementing material can mineralize carbon dioxide in a humid environment, increases the carbon dioxide storage amount, and improves the carbon dioxide storage strength and airtightness.