Battery provided with thermoelectric common channel with functions of temperature equalization and heat conduction, and end cover groups thereof

Abstract

The invention discloses a battery provided with a thermoelectric common channel with functions of temperature equalization and heat conduction, and end cover groups of the battery; the battery provided with the thermoelectric common channel with the functions of temperature equalization and heat conduction comprises a plurality of battery pole rolls and the two end cover groups, wherein each battery pole roll comprises a central component and at least one pole piece; the two ends of the central component are respectively provided with a bending part; each pole piece at least comprises a positive pole layer and a negative pole layer; each pole piece is wound outside each central component; the battery pole rolls are configured in an abreast way; terminal arrangement parts are formed by the bending parts arranged at the two ends of the central components; and the two end cover groups are respectively arranged on the terminal arrangement parts. A heat conduction part of the battery is connected with a cooling device arranged outside the battery, so that the heat in the battery can be rapidly taken away, the temperature difference of all batteries in a battery pack can be reduced, and the occurrence of thermal runaway can be further reduced.

Description

technical field [0001] The invention relates to a battery, and in particular to a battery with a thermoelectric common channel structure of temperature uniformity and heat conduction. Background technique [0002] In the market, batteries are installed on the market, whether it is as small as a popular portable electronic product or as large as a car for transportation. Therefore, how to reduce the battery production cost and provide consumers with a safe and good battery has always been the goal of the industry. [0003] Lithium batteries are widely used because of their high power (output) and high energy density. Generally speaking, a lithium battery has a pole roll composed of a positive electrode layer, a separator layer and a negative electrode layer inside, wherein the separator layer prevents the positive electrode layer and the negative electrode layer from being in direct contact with each other. The pole roll is stored in the battery container in a stacked or wo...

AI Technical Summary

Problems solved by technology

However, removing heat from the outside of the battery case still does not make the temperature distribution inside the battery uniform nor avoid heat concentration at the pole coil current collection point

Images