4results about How to "Stop burning" patented technology

This utility model discloses a lithium battery module with an explosion-proof protection structure, including a main body component. The main body component includes a base, connecting rods connected to both ends of the base, a protective shell fixed to the base, and a battery fixedly placed inside the protective shell. A fire extinguishing component includes a base plate threaded to the top of the battery, an L-shaped plate fixed to the base plate, a spring horizontally fixed to the L-shaped plate, a rolling gear connected to the spring, a large gear engaged with the rolling gear, a ball valve fixed to the large gear by a long rod, a fixed shell sleeved outside the ball valve, and a sandbox connected above the fixed shell. A cooling component includes a circulation pipe connected to the connecting rods. This utility model, through its fire extinguishing component, releases a special agent to isolate air and prevent combustion when the lithium battery module begins to burn due to excessive temperature, thus delaying the explosion, buying more time for rescue, and preventing greater economic losses.

This invention relates to the field of lithium battery technology, specifically disclosing a lithium battery with a flame-retardant structure, including a battery outer shell, a battery inner shell disposed inside the battery outer shell, and a partition cavity formed between the battery outer shell and the battery inner shell. The partition cavity contains a flame-retardant material that prevents combustion. It also includes a control device for controlling the connection between the battery inner shell and the partition cavity. This invention, by providing a battery outer shell and a battery inner shell for storing the battery, forming a partition cavity between the battery outer shell and the battery inner shell, and containing a flame-retardant material inside the partition cavity, and by providing a control device for controlling the connection between the battery inner shell and the partition cavity, allows the flame-retardant material to enter the battery inner shell and prevent combustion of the battery inside the battery inner shell when the lithium battery is in a fire environment or is itself burning. This effectively improves the flame-retardant capability of the lithium battery and increases its safety performance.

This invention relates to the field of lithium-ion battery technology, and discloses a composition for preparing a fire-retardant composite electrolyte, the fire-retardant composite electrolyte, and a method for preparing the same. The composition contains the following components: lithium hexafluorophosphate, solvent, flame retardant, overcharge protection agent, surface film-forming agent, cathodic protection agent, and fluorocarbon surfactant; the flame retardant is selected from at least one of nitrogen-containing compounds and organophosphorus compounds; the overcharge protection agent is selected from at least one of tris(4-methoxyphenyl)phosphine and 2,5-di-tert-butyl-1,4-dimethoxybenzene. The fire-retardant composite electrolyte prepared from the composition provided by this invention can improve battery safety while ensuring high electrochemical performance when used in lithium batteries.

A fire-fighting circuit in an energy storage system, comprising a fire detection module, a first comparison module, a second comparison module, a high-voltage breaking module and a fire-fighting module; the fire detection module is used to output a voltage signal according to the fire condition of the energy storage system; the inputs of the first comparison module and the second comparison module are connected to the output of the fire detection module, and the reference voltage of the first comparison module is lower than that of the second comparison module; the output of the first comparison module is connected to the high-voltage breaking module, and the high-voltage breaking module is controlled by the high level to cut off the connection of the power battery of the energy storage system; the output of the second comparison module is connected to the fire-fighting module, and the fire-fighting module is triggered by the high level output by the second comparison module to inject a fire-retardant substance into the battery pack of the power battery.