Immersion type thermal management system

Operation principle: the lithium battery is completely immersed in the fluorinated solution, and the battery and the fluorinated solution are brought into direct contact to heat exchange. The temperature of the battery is controlled by an external cooling or heating system.

Advantages: the temperature difference between the cell cells can be controlled to a small range, for example, at a temperature of 2-3.degree. C., compared to the traditional heat exchanger plate technology, the temperature difference drastically decreases, the local overheating can be effectively avoided, and the life span of the battery can be extended, and the fluorinated liquid can have good insulation performance, prevent the short circuit of the battery, and increase the system safety.

Cold plate cooling system

Operation principle: there is a flow path inside the cold plate, the fluorinated liquid circulates through the flow path, the cold plate is closely bonded to the heat generating portion of the lithium battery, and the heat is transmitted from the battery to the fluorinated liquid through heat conduction, and the heat is removed to realize heat radiation.

Advantages: accurate heat radiation to the local hot spot of the battery can be applied to a specific region of high heat radiation demand, for example, in the central region of the battery module or in the heat concentrated concentration region at high rate of charging and discharging, and the flow of the fluorinated liquid in the cold plate can be precisely controlled according to the heat generation conditions of the battery, thereby improving the heat radiation effect, avoiding the overcooling of the entire battery system, and improving the energy utilization efficiency.

Shower cooling system

Operation principle: flush liquid is sprayed onto the surface of a lithium battery in the form of mist or liquid droplets through the spray head, and the fluorinated liquid evaporates and absorbs heat on the surface of the battery, thereby bringing heat back to the heat, thereby realizing heat radiation.

Advantages: direct fluorination is applied to the heat generating site of the battery, the heat radiating effect is good, and the surface temperature of the battery can be rapidly lowered, and the evaporation of the fluorinated liquid can take up a large amount of heat, and the temperature of the battery can be lowered, and the temperature of the battery can be lowered, and the surface of the battery can be cleaned at the same time, and dust and impurities are removed, and the heat radiation performance and safety of the battery can be enhanced.

Battery thermal runaway suppression

Operation principle: when the lithium battery generates thermal runaway, the fluorinated solution quickly absorbs heat, reduces the battery temperature, and suppresses further development of thermal runaway. At the same time, the incombustibility and chemical stability of the fluorinated liquid can be prevented from occurring and spreading.

Superiority: in the early stages of thermal runaway of lithium batteries, fluorinated liquids can interfere and act in a timely manner, effectively avoiding deterioration of thermal runaway, reducing the loss of property and safety risk, earning time for the evacuation and relief of personnel, and increasing the safety and reliability of the new energy lithium battery system.