Lithium-ion battery top cover with resistor

Abstract

The invention discloses a lithium-ion battery top cover with a resistor. The top cover comprises a top cover sheet; an explosion-proof valve is arranged in the center of the top cover sheet; two ends of the top cover sheet are respectively provided with a positive pole and a negative pole; the joint of the positive pole and the top cover sheet and the joint of the negative pole and the top cover sheet are respectively provided with a sealing ring; a positive resistor disc is arranged between and connected with the positive pole and the top cover sheet; the top cover sheet is provided with an overturning piece; and after overturning, the overturning piece is conductively connected with the negative pole. According to the invention, the positive resistor disc is arranged as a connection resistor, and the positive resistor disc may be a ceramic resistor disc and has high-temperature resistance, so the service life and efficiency of the resistor are effectively guaranteed, slow discharging of an electrical core is benefited, the state of charge of the electrical core is declined, and the security of a battery is improved.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a lithium-ion battery top cover with resistance. Background technique [0002] A battery refers to a cup, tank, or other container or a part of a composite container that contains an electrolyte solution and a metal electrode to generate current. It is a device that can convert chemical energy into electrical energy. The battery is simple in structure, easy to carry, and easy to charge and discharge. It is not affected by the external climate and temperature, and its performance is stable and reliable. It plays a great role in all aspects of modern social life. However, when the battery is in an unstable state, the battery top cover in the current market is easy to cause Potential safety hazards, and the resistance of ordinary materials is prone to failure under high temperature conditions. Contents of the invention [0003] The object of the present invention is to provide ...

AI Technical Summary

Problems solved by technology

[0002] A battery refers to a cup, tank, or other container or a part of a composite container that contains an electrolyte solution and a metal electrode to generate current. It is a device that can convert chemical energy into electrical energy. The battery has a simple structure, is easy to carry, and is easy to operate for charging and discharging. It is not affected by the external climate and temperature, and its performance is stable and reliable. It plays a great role in all aspects of modern social life. However, when the battery is in an unstable state, the battery's top cover is likely to cause Potential safety hazard, and the resistance of ordinary materials is prone to failure at high temperatures

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