In order to improve the working performance of the lithium-ion battery, the battery module with Phasechange material/water cooling-plate was designed and numerically analyzed based on the energy conser-vation and fluid dynamics. The non-uniform internal heat source based on 2D electro-thermal model forbattery LiFePO 4 /C was used to simulate the heat generation of each battery. Then factors such as height ofwater cooling-plate, space between adjacent batteries, inlet mass flow rate, flow direction, thermal con-ductivity and melting point of PCM were discussed to research their influences on the cooling perfor-mance of module. And the 5 continuous charge-discharge cycles was used to research the effect ofPCM/water cooling plate on preventing thermal runaway. The results showed that the water cooling plateset close to the near-electrode area of battery removed the majority of heat generated during dischargingand decreased the maximum temperature efficiently. The PCM between the adjacent batteries couldimprove the uniformity of temperature field. In addition, the PCM/water cooling plate could limit themaximum temperature effectively and improve the uniformity of temperature field during the 5 contin-uous charge-discharge cycles. As a result, it prevented the emergence of thermal runaway and increasedthe safety of module.
In order to improve the working performance of the lithium-ion battery, the battery module with Phase<br>change material/water cooling-plate was designed and numerically analyzed based on the energy conser-<br>vation and fluid dynamics. The non-uniform internal heat source based on 2D electro-thermal model for<br>battery LiFePO 4 /C was used to simulate the heat generation of each battery. Then factors such as height of<br>water cooling-plate, space between adjacent batteries, inlet mass flow rate, flow direction, thermal con-<br>ductivity and melting point of PCM were discussed to research their influences on the cooling perfor-<br>mance of module. And the 5 continuous charge-discharge cycles was used to research the effect of<br>PCM/water cooling plate on preventing thermal runaway. The results showed that the water cooling plate<br>set close to the near-electrode area of battery removed the majority of heat generated during discharging<br>and decreased the maximum temperature efficiently. The PCM between the adjacent batteries could<br>improve the uniformity of temperature field. In addition, the PCM/water cooling plate could limit the<br>maximum temperature effectively and improve the uniformity of temperature field during the 5 contin-<br>uous charge-discharge cycles. As a result, it prevented the emergence of thermal runaway and increased<br>the safety of module.
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