Temperature-controllable battery module and temperature control method thereof

Abstract

The invention discloses a temperature-controllable battery module and a temperature control method thereof. The temperature-controllable battery module comprises a shell, a plurality of battery cellsand a control panel, wherein the battery cells are arranged in the shell at intervals, air duct gaps used for heat exchange are formed between the adjacent battery cells, heating pieces and fans are sequentially arranged at inlets and/or outlets of the air duct gaps, a battery cell temperature sensor is arranged on the battery cell, and the control panel is connected with the plurality of batterycells, the battery cell temperature sensor, the heating pieces and the fans respectively. The battery module is simple in structure, can quickly perform self-heating and cooling on the battery cells,and is more efficient in temperature control of the battery cells.

Description

Technical field[0001]The invention relates to the technical field of automobile batteries, in particular to a temperature-controllable battery module and a temperature control method thereof.Background technique[0002]With the development of electric vehicle technology, power batteries have been widely used in vehicles. Vehicles usually need to be able to work in the range of -20 degrees to 60 degrees, and current power battery packs usually cannot meet such a wide operating temperature range. Therefore, it is necessary to cool the battery pack at a high temperature and heat the battery pack at a low temperature to ensure stable and efficient operation of the power battery.[0003]For the current mainstream battery modules, when the temperature of the module is too high, it needs to pass through the medium in the cooling liquid cold plate, and then contact the bottom of the module through the liquid cold plate in the battery thermal management system to realize the cooling of the modul...

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Problems solved by technology

Moreover, in the above solution, when the temperature is raised, the PTC is firstly heated by the non-module area in the battery pack. After the corresponding air is heated, the hot air is slowly blown around each module by the turbulence of 8 fans. , so the heating efficiency is low; when cooling down, it is also necessary to firstly heat the evaporator through the area where the battery pack is not where the module is located, and after the corresponding air is cooled, the cold air is slowly blown to every around a module, so the cooling efficiency is also low

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