Electrochemical device for ensuring good safety

Abstract

The invention discloses an electrochemical device for ensuring good safety. The electrochemical device comprises a casing and a storage battery body. The inside of the casing is provided with the storage battery body, and four side walls of the casing are hinged with four evenly-distributed third connecting rods. The other ends of the third connecting rods are hinged with fourth T-shaped sliding blocks, and the fourth T-shaped sliding blocks are slidably connected with vertically-disposed side plates. Each side plate is provided with two vertically-disposed second sliding groves, the fourth T-shaped sliding blocks are slidably connected with the second sliding groves, second springs are connected between two of the fourth T-shaped sliding blocks, the second springs are located in the second sliding groves, and the bottom ends of the side plates are slidably connected with two symmetrically-disposed second T-shaped sliders. The device has reasonable structure and novel design, and can protect the inside and the outside of a storage battery to prevent the storage battery from being short-circuited due to severe impact or vibration to cause fire or explosion, and has high safety.

Description

technical field [0001] The invention relates to the technical field of electrochemical devices, in particular to an electrochemical device with good safety. Background technique [0002] Now people's life is inseparable from the use of electricity, and various battery products have been fully integrated into our lives. The interior of the battery is equipped with anode and cathode electrodes, and organic electrolytes or polymer electrolytes are filled in the space between the cathode and anode. Electricity is generated by the oxidation and reduction reactions of the cathode and anode with the electrolyte solution. If the battery is overcharged, excess metal ions are extracted from the cathode and inserted into the anode. As a result, metal ions with very high reactivity are deposited on the On the surface of the anode, the cathode also becomes thermally unstable, and the organic solvent used as the electrolyte undergoes a decomposition reaction. The resulting sharp exothermi...

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Problems solved by technology

[0002] Now people's life is inseparable from the use of electricity, and various battery products have been fully integrated into our lives. The interior of the battery is equipped with anode and cathode electrodes, and organic electrolytes or polymer electrolytes are filled in the space between the cathode and anode. Electricity is generated by the oxidation and reduction reactions of the cathode and anode with the electrolyte solution. If the battery is overcharged, excess metal ions are extracted from the cathode and inserted into the anode. As a result, metal ions with very high reactivity are deposited on the On the surface of the anode, the cathode also becomes thermally unstable, and the organic solvent used as the electrolyte undergoes a decomposition reaction. The resulting sharp exothermic reaction reduces the power generation efficiency of the battery. Over time, the battery will catch fire or explode, and when the battery is damaged When there is a relatively severe vibration or impact from the outside world, the cathode and anode in the battery will be partially short-circuited, and a very large amount of heat will be generated locally around the short-circuited part, which will shorten the battery life. Therefore, it is necessary to avoid such rapid heating inside the battery. For this reason, we Propose an electrochemical device that ensures good safety

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