Effect of coupling phase change materials and heat pipe on performance enhancement of Li‐ion battery thermal management system

Abstract

A thermal management system (TMS) including heat pipes, heat-conducting glue, phase change materials (PCM), and micro-channel plates is built in this research. The heat pipes and heat-conducting glue can solve the problem of poor thermal conductivity and large internal temperature difference (T d) of TMS including PCM and liquid cooling. The micro-channel plates can solve the problem that TMS combined with the PCM and the heat pipes is difficult to transfer heat. The designed TMS can cool and heat li-ion battery. Through the li-ion battery discharge test experiment by 1C, 2C, and 3C, the li-ion battery heating power is obtained. The temperature change curve of li-ion batteries at 1C, 2C, 3C discharge and when ambient temperature (T a) is −20 C, −10 C, 0 C, and 20 C are studied. When the T a is lower than 0 C, the designed TMS can heat the li-ion battery to 20 C, and make the T d inside the li-ion batteries approach 0 C within a short period.

Review on Thermal Management of Lithium-Ion Batteries for Electric Vehicles: Advances, Challenges, and Outlook

“…Their study shows that the graphene oxide emulsion has not only better temperature uniformity but also great temperature control capability. Yuan et al found that heat pipe and thermal conductive adhesive can solve the problems of poor thermal conductivity and large internal temperature difference of BTMS. A microchannel plate can solve the difficulty of heat transfer of PCM combination heat pipe.…”

A Review of the Power Battery Thermal Management System with Different Cooling, Heating and Coupling System

“…The experimental results showed that the maximum temperature of the battery without heat pipe under natural convection reached 56 ℃, and the maximum temperature of the battery with heat pipe under natural convection was 46.3 ℃. The heat pipe has high thermal conductivity, and the thermal management system coupled Yuan et al [101] to solve the battery thermal management system has not been able to meet the needs of lithium-ion battery cooling and heating, the research designs a thermal management system based on paraffin/heat pipe coupling, and through the three-dimensional modeling to determine in lithium-ion battery under different discharge rate of cooling and heating under low-temperature environment, the simulation results show that, as the discharge rate increases, the average temperature inside the battery gradually increases, with the highest temperature between the two ends when cooling the battery. The designed coupled thermal management system can heat the temperature of the battery from −20 • C to 20 • C in a low-temperature environment at about 1500 s.…”

Thermal Performance Analysis of a Prismatic Lithium-Ion Battery Module under Overheating Conditions

“…They found that the temperature variation range of the battery module was relatively small. A simplified heat transfer model [20][21][22][23] is employed to simplify the heat pipe into a 4 mm flat plate, with the length and height consistent with the battery at 148 mm and 92 mm, respectively. The thermal conductivity is equivalent to the actual HP and remains constant.…”