Battery module

Abstract

The invention discloses a battery module, which comprises a soft package battery core structure and a housing, wherein the soft package battery core structure comprises a plurality of brackets and a plurality of battery cores arranged on the plurality of brackets; the plurality of brackets are arranged and distributed and corresponding first grooves are arranged in the edges of the plurality of brackets; the housing comprises a shell surrounded by four sides to form a space for accommodating the soft package battery core structure, a first end plate located at the front end of the housing anda second end plate located at the rear end of the housing; the inner side of the shell is provided with raised lines which extend towards two ends of the shell, and the raised lines are matched with the first grooves to limit the soft package battery core structure; the shell also comprises fins located at the outer side of the shell; a closed chamber is formed by the second end plate, the shell and the first end plate; and the raised lines on the inner wall of the shell are matched with the first grooves in the brackets in the soft package battery core structure. Through the cooling fins on the outer wall of the shell, the positions of the battery cores in the housing are stable and cooling of the plurality of battery cores can be accelerated.

Description

technical field [0001] The invention relates to the field of batteries, and more particularly to a battery module. Background technique [0002] Energy shortage and environmental pollution are two major challenges facing the development of the world's automobile industry today, so it is imperative to carry out research on new energy vehicles. With the gradual development and utilization of clean energy such as solar energy, wind energy, geothermal energy, tidal energy and nuclear energy, the development of electric vehicles has become one of the main directions for the development of the automobile industry in recent years. The development of electric vehicles has laid a certain foundation. Pure electric vehicles have been widely favored by all walks of life, and the development of electric vehicles is largely restricted by the maturity of three major technologies: battery cell technology, battery management system, and motor drive control system. . As a key component of e...

AI Technical Summary

Problems solved by technology

The heat dissipation of the battery system uses a heat conduction pad, which has problems such as poor contact and high thermal resistance, the heat dissipation effect is not obvious, and the cost is high

During the process of charging and high-rate discharge, the battery will generate a lot of heat, which not only affects the performance of the battery, but also tends to cause thermal runaway under continuous high temperature, which seriously affects the life of the battery.

In addition, the shell of the battery system is generally welded or stamped by sheet metal, and the material is relatively heavy, resulting in low energy density of the power battery, low thermal conductivity of the material, slow heat dissipation, and high processing costs; at the same time, the location of the battery cells inside the shell is not stable, thus affecting the performance of the battery

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