Low-temperature-resistant battery module

Abstract

The invention discloses a low-temperature-resistant battery module. The low-temperature-resistant battery module is characterized in that irregular gaps and concave-convex surfaces are filled among aplurality of battery cores of a battery core set (1) by adopting a heat conduction joint filling material (2) with electrical insulation and vibration reduction performance; secondly, phase change energy storage material specially-made radiators (12) are tightly arranged and embedded at the periphery and the bottom of the treated battery core set (1); low-temperature heat insulation materials (14)are arranged on the periphery and at the bottom of the phase change energy storage material specially-made radiators (12), semiconductor chilling plates are arranged on the periphery and at the bottom of the phase change energy storage material specially-made radiators (12) in an embedded mode, low-temperature heat insulation materials (4) are arranged on an upper portion of the battery core set(1), and lastly, an outer shell box body composed of reinforcing materials such as metal is arranged outside the low-temperature heat insulation materials. The low-temperature-resistant battery moduleis advantaged in that heat energy in the battery module is fully utilized, active heating is carried out to maintain the temperature environment of the battery core under the condition of low power consumption, the low-temperature-resistant battery module is realized, and the charging frequency, the charging amount and the charging time of the battery core can be saved.

Description

technical field [0001] The invention relates to the technical field of battery modules, in particular to a low-temperature-resistant battery module used in a low-temperature environment. Background technique [0002] At present, all countries in the world are vigorously developing new energy vehicles. The development of new energy vehicles, especially pure electric vehicles, has experienced several ups and downs. The technical route has been explored in multiple ways. Lithium-ion batteries have come from behind. The technology has exceeded expectations. The global pure electric vehicle market has developed rapidly. . But in everyday EV use, freezing weather can be a nightmare. In a low temperature environment, the activity of the power battery will be significantly reduced, and the efficiency of charging and discharging will also be greatly affected. When the temperature of the battery cell is at 0°C, the battery capacity will drop by about 20%. In addition, the warm air in...

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Problems solved by technology

[0005] In order to overcome the current situation that the existing power battery pack technology is not suitable for the cold weather in winter, and the power consumption problem of the existing battery temperature control system, and solve the problem of energy storage decline caused by the decrease in battery activity of the power battery at low temperature, the present invention proposes A low temperature resistant battery module

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