Energy storage lithium ion battery capable of being used in series

Abstract

The invention discloses an energy storage lithium ion battery capable of being connected in series for use, which comprises a protective outer shell, a heat dissipation seat, a flame-retardant asbestos cover, an insulating inner shell, an insulating sealing plate, a microporous diaphragm, a positive plate, a negative plate, a positive bridging lead sheet, a negative bridging lead sheet, a positive pole, a negative pole, a protective cover plate and a sealing rubber plate, positioning grooves are formed in four corners of the inner edge of the back face of the protective shell, positioning columns are arranged at four corners of the inner edge of the front face of the protective shell, the positioning columns and the positioning grooves are matched components, clamping grooves are formed in two corners of the bottom end of the back face and the top end of the front face of the protective shell, and buckles are arranged at two corners of the bottom end of the back face and the bottom end of the front face of the protective shell. The battery pack has a splicing function, the positions of a plurality of batteries are relatively fixed, additional connecting pieces are not needed, the batteries can be connected in series for use, the operation is simple and convenient, the heat dissipation performance is good, internal heat can be quickly conducted to the outside, the heat dissipation efficiency is high, the temperature rise and heating risk of the batteries is reduced, and the service life of the batteries is prolonged.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to an energy storage lithium ion battery that can be used in series. Background technique [0002] Lithium-ion battery for energy storage is a kind of electric energy storage device that uses lithium metal or lithium alloy as positive and negative electrode materials and uses non-aqueous organic electrolyte solution. It is mainly used for peak regulation and frequency regulation power auxiliary services, renewable energy grid connection and micro power grid and other fields. [0003] However, most of the conventional energy storage lithium-ion batteries do not have the splicing function, the positions between multiple batteries are difficult to fix, additional connectors are required, it is inconvenient to use in series, the structural protection is insufficient, and the insulation system is seriously damaged during use. It is vulnerable to damage, has a high risk of ...

AI Technical Summary

Problems solved by technology

[0003] However, most of the conventional energy storage lithium-ion batteries do not have the function of splicing, the position between multiple batteries is difficult to fix, additional connectors are required, it is inconvenient to use in series, the structure protection is insufficient, and the external force is seriously damaged during use. Vulnerable to damage, high risk of electric leakage, certain potential safety hazards, poor heat dissipation performance, difficult to quickly conduct internal heat to the outside, low heat dissipation efficiency, high risk of battery heating and heating, affecting the service life of the battery

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