A lithium-ion battery thermal control system

Abstract

The invention discloses a lithium ion battery heat control system which mainly comprises a box (1). A lithium ion battery pack (11) is installed in an inner cavity (10) arranged in the box (1), an air duct I (12) is arranged between one side surface of the inner cavity (10) and the box (1), an air duct II (13) is arranged between the bottom of the inner cavity (10) and the bottom surface of the box (1), an air port (14) is arranged on the upper portion of one side surface of the inner cavity (10) and communicated with the air duct I (12), an inner circulation fan (3) and a heater (9) are arranged in the air duct I (12), the inner circulation fan (3) is opposite to the air port (14), the positive temperature coefficient (PTC) heater (9) is located on the lower portion of the inner circulation fan (3), air holes (15) are distributed at the bottom of the inner cavity (10), the inner cavity (10) is communicated with the air duct II (13) through the air holes (15), an air inlet (16) is arranged on one side of the air duct II (13), and a rotatable air door I (4) is arranged at the position of the air inlet (16).

Description

Technical field [0001] The invention relates to a thermal control system for a lithium ion battery. Background technique [0002] Lithium-ion batteries use carbon materials or other lithium intercalation compounds to replace metal lithium as the negative electrode, the positive electrode is a lithium-containing transition metal oxide such as LiCo02, and the electrolyte is a lithium salt organic solution. Lithium-ion batteries have been widely used in the portable information product market due to their high working voltage, high energy density, low self-discharge, and environmental friendliness. However, there are still some problems in the further promotion and application of lithium-ion batteries, among which are outstanding problems. Some lithium-ion batteries have poor low-temperature performance and high-temperature environments can easily lead to thermal runaway and poor safety. Therefore, in-depth research and improvement on the control and management of lithium-ion batter...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a lithium-ion battery thermal control system, which can ensure that the lithium-ion battery can always work in an ideal temperature environment, effectively solve the problem of high-low temperature performance degradation of the lithium-ion battery, and can greatly improve the performance of the lithium-ion power supply system. High and low temperature performance and life

Images