Efficient heat management automobile power battery pack

Abstract

The invention discloses an efficient heat management automobile power battery pack which comprises a battery holder made of phenolic foam and provided with honeycomb drill holes; a layer of silicon substrate is arranged on the inner wall of each drill hole, a layer of insulating and heat-conducting material is arranged on each silicon substrate, a battery unit is arranged in each drill hole, and all of the battery units are connected in series through nickel sheets; a layer of silicon substrate is arranged on the upper surface of the battery holder, a layer of insulating and heat-conducting material is arranged on the silicon substrate, and a metal heat-conducting plate is arranged on the insulating and heat-conducting material. The efficient heat management automobile power battery pack can automatically perform efficient heat management, avoids unbalance of temperatures of the battery units in the battery pack, and avoids the influence on the uniformity of the battery units and the accuracy of battery charge state estimation, thereby greatly improving the battery charging / discharging cycle efficiency, avoiding bad influence on battery power and energy exerting, fundamentally and completely eradicating thermal runaway, and greatly prolonging the service life, and improving the safety and the reliability of the battery pack.

Description

technical field [0001] The invention belongs to the field of automobile power batteries, and in particular relates to a high-efficiency thermal management automobile power battery pack. Background technique [0002] As the main energy storage device of the battery pack on the electric vehicle, the battery is a key component of the hybrid / electric vehicle, and its performance directly affects the performance of the hybrid / electric vehicle. At present, batteries generally have disadvantages such as short cycle life and high temperature-affected performance. In addition, the vehicle space is limited, and the heat generated during battery operation will cause temperature imbalance among the units in the battery pack and affect the consistency of the battery cells. performance and the accuracy of battery state-of-charge (SOC) estimation, thereby reducing the battery charge-discharge cycle efficiency, affecting the power and energy performance of the battery, and in severe cases, ...

AI Technical Summary

Problems solved by technology

[0018] In order to solve the problem of poor thermal management effect of the existing electric vehicle battery pack, the present invention aims to provide a high-efficiency thermal management automotive power battery pack, which can perform effective thermal management by itself and ensure the consistency of the battery cells in the battery pack , improving its service life and reliability

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