Soft package non-modular power battery system

A power battery and battery management system technology, which is applied in the field of soft-pack non-modular power battery systems, can solve the problems of shortened heat transfer path, insufficient compact design, weight reduction and cost, etc., to achieve shorter heat transfer path and lower weight. Effects of lightening and cost reduction
CN112397828AActive Publication Date: 2021-02-23WANXIANG 123 CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
WANXIANG 123 CO LTD
Publication Date
2021-02-23

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Abstract

The invention discloses a soft package non-modular power battery system which comprises an upper cover and a lower box body assembly which are fixedly connected, and a battery management system, a pressing rod assembly, a low-voltage wiring harness, a soft package battery cell assembly, a high-voltage assembly, a cross beam assembly and a liquid cooling system are sequentially arranged between theupper cover and the lower box body assembly from top to bottom. According to the technical scheme, a modular structure is avoided, soft package battery cells are directly integrated into the batterybox, the process of integrating the battery cells into a module is omitted, the assembly error caused by intermediate integration of the module is omitted, the process is simplified, and the cost is reduced; the system is non-modular, materials such as a module shell, a module end plate and a heat conduction structural adhesive are omitted, the weight is obviously reduced, the cost is obviously reduced, a heat exchange path is changed into a battery cell, heat conduction structural adhesive and liquid cooling pipe, the heat transfer path is shortened, and the efficiency is improved.
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Description

technical field

[0001] The invention relates to the field of power batteries, in particular to a soft package and non-modularized power battery system. Background technique

[0002] Soft-pack batteries refer to lithium batteries whose shells are made of soft packaging materials, usually aluminum-plastic composite films. They have obvious advantages such as large capacity, low internal resistance, flexible design, high safety, and light weight. The application in the field of power batteries is accelerating. According to some data, soft-pack batteries have won the favor of the majority of power battery manufacturers due to their good safety performance, light weight, and flexible design. Therefore, soft-pack batteries are used more and more in new energy vehicles and energy storage. The structure of the existing soft-pack power battery system is generally from the cell level to the module level, from the module level to the battery box structure, and the soft-pack power batt...

Claims

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