CN-224232698-U - Full-immersion lithium battery energy storage bag

Abstract

The utility model belongs to the technical field of batteries, and particularly discloses a fully immersed lithium battery energy storage bag. The full-immersion type lithium battery energy storage bag comprises a box body, a box cover, battery packs, porous plates and a condensation assembly, wherein an opening is formed in the top of the box body, the box cover is arranged at the opening and is connected with the box body in a sealing mode, a sealing cavity is formed by enclosing the box cover and the box body, soaking liquid is contained in the box body and can be vaporized at a preset temperature, the battery packs are arranged in the box body in a spacing mode, an X channel and a Y channel are formed among the battery packs, the soaking liquid submerges the battery packs, the porous plates are arranged among the battery packs in each row, through holes in the porous plates form the X channel, and a gas pipeline and a liquid pipeline are communicated between the condensation assembly and the sealing cavity, so that the soaking liquid in the box body enters the condensation assembly through the gas pipeline after being gasified and flows back to the box body through the liquid pipeline. The utility model is beneficial to improving the cooling effect and the temperature consistency of the battery pack.

Inventors

• SHI GUOYOU
• JIANG CHENGBO
• ZHOU TINGTING
• ZHOU JIANYONG
• WANG YIYUN
• QIN KEKUI
• SONG JIANHUI
• WU LONGFEI

Assignees

• 浙江巨化装备工程集团有限公司

Dates

Publication Date

20260512

Application Date

20250225

Claims (10)

1. 1. A fully submerged lithium battery energy storage pack, comprising: The box body and the box cover are arranged at the top of the box body, the box cover is arranged at the opening and is connected with the box body in a sealing way, a sealing cavity is formed by the box cover and the box body in a surrounding mode, soaking liquid is contained in the box body, and the soaking liquid can be vaporized at a preset temperature; The battery packs are arranged in the box body at intervals, an X channel and a Y channel are formed among the battery packs, and the soaking liquid submerges the battery packs; A porous plate arranged between each column of the battery packs, wherein through holes on the porous plate form the X channels; The condensing assembly is communicated with the sealing cavity through a gas pipeline and a liquid pipeline, so that the soaked liquid in the box body is gasified and then enters the condensing assembly through the gas pipeline to be condensed, and the condensed liquid flows back to the box body through the liquid pipeline.
2. 2. The fully submerged lithium battery energy storage pack of claim 1, wherein the distance between two adjacent rows of the battery packs is 3 mm-5 mm.
3. 3. The fully submerged lithium battery energy storage pack of claim 1, wherein the diameter of the through hole is 3 mm-9 mm.
4. 4. The fully submerged lithium battery energy storage pack of claim 1, further comprising a heating plate disposed at the bottom of the tank, the heating plate being configured to heat the immersion liquid.
5. 5. The fully submerged lithium battery energy storage pack of claim 1, wherein the condensing assembly comprises: The heat exchange component comprises a heat exchange box and a heat exchange tube, the heat exchange box is provided with a heat exchange cavity, two ends of the gas pipeline are respectively communicated with the heat exchange cavity and the sealing cavity, two ends of the liquid pipeline are respectively communicated with the heat exchange cavity and the sealing cavity, and the heat exchange tube is positioned in the heat exchange cavity; and the outlet of the refrigerating unit is connected with the inlet of the heat exchange tube, and the water return port of the heat exchange tube is connected with the inlet of the refrigerating unit.
6. 6. The fully submerged lithium battery energy storage pack of claim 1, further comprising a pressure gauge disposed in the tank cover, the pressure gauge being configured to detect pressure within the sealed cavity.
7. 7. The fully submerged lithium battery energy storage pack of claim 1, further comprising a pressure relief valve disposed at the tank cover to relieve pressure from the sealed cavity.
8. 8. The fully submerged lithium battery energy storage pack of claim 1, further comprising a window disposed in the tank cover to view the interior of the sealed chamber through the window.
9. 9. The fully submerged lithium battery energy storage pack of claim 1, further comprising a temperature sensor disposed within the tank.
10. 10. The fully submerged lithium battery energy storage pack of any of claims 1-9, further comprising a level gauge disposed within the tank.

Description

Full-immersion lithium battery energy storage bag Technical Field The utility model belongs to the technical field of batteries, and particularly relates to a fully immersed lithium battery energy storage bag. Background In the related art, the full-immersion type energy storage battery is cooled by adopting a cooling mode of immersing the whole battery in cooling liquid, and generally, unidirectional cooling is mainly performed by sensible heat absorption, heat generated by the battery cannot be rapidly absorbed, and the cooling effect is limited. Disclosure of Invention The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the utility model provides a fully immersed lithium battery energy storage pack, which is beneficial to improving the cooling effect and the temperature consistency of a battery pack. The full-immersion type lithium battery energy storage bag comprises a box body and a box cover, wherein an opening is formed in the top of the box body, the box cover is arranged at the opening and is in sealing connection with the box body, a sealing cavity is formed by enclosing the box cover and the box body, soaking liquid is contained in the box body and can be vaporized at a preset temperature, a plurality of battery packs are arranged in the box body at intervals, an X channel and a Y channel are formed among the battery packs, the soaking liquid submerges the battery packs, a porous plate is arranged among the battery packs in each row, through holes in the porous plate form the X channel, a condensing assembly is communicated between the condensing assembly and the sealing cavity, so that the soaking liquid in the box body is gasified, enters the condensing assembly through the gas pipeline to be condensed, and the condensed liquid flows back to the box body through the liquid pipeline. It can be understood that the battery pack is arranged in the soaking liquid in the box body, heat exchange is carried out between the battery pack and the soaking liquid, when the temperature of the soaking liquid reaches the boiling point of the battery pack, the soaking liquid is gasified, the gasified soaking liquid floats up to the condensing assembly through the gas pipeline under the buoyancy effect, the condensing assembly is used for continuously cooling the battery pack after condensing gas into liquid and reflowing into the box body through the reflow pipeline, the surfaces of the soaking liquid and the battery pack are fully contacted, and the soaking liquid always circularly flows and exchanges heat with the condensing assembly, so that heat generated by the battery pack can be effectively taken away, and the cooling effect on the battery pack and the straightness of the temperature of the battery pack are improved. In addition, through setting up Y passageway between two adjacent battery packs, can make battery pack and soak the liquid abundant contact to float along Y passageway after soaking the liquid and taking place the vaporization, through setting up X passageway between two adjacent battery packs, X passageway passes through the perforated plate and forms, can restrict the circulation in X direction after soaking the liquid vaporization through setting up the perforated plate, and does not influence the circulation of soaking the liquid in X passageway, is favorable to improving the efficiency of floating after soaking the liquid vaporization, thereby can improve cooling efficiency. In this embodiment, the distance between two adjacent rows of the battery packs is 3mm to 5mm. In this embodiment, the diameter of the through hole is 3mm to 9mm. In this embodiment, the fully immersed lithium battery energy storage pack further includes a heating plate, where the heating plate is disposed at the bottom of the case, and the heating plate is used to heat the soaking liquid. In the embodiment, the condensing assembly comprises a heat exchange component, a refrigerating unit and a water return port, wherein the heat exchange component comprises a heat exchange box and a heat exchange pipe, the heat exchange box is provided with a heat exchange cavity, two ends of a gas pipeline are respectively communicated with the heat exchange cavity and the sealing cavity, two ends of a liquid pipeline are respectively communicated with the heat exchange cavity and the sealing cavity, the heat exchange pipe is positioned in the heat exchange cavity, an outlet of the refrigerating unit is connected with an inlet of the heat exchange pipe, and a water return port of the heat exchange pipe is connected with an inlet of the refrigerating unit. In this embodiment, the fully immersed lithium battery energy storage pack further includes a pressure gauge, where the pressure gauge is disposed on the case cover, and the pressure gauge is used to detect the pressure in the sealed cavity. In this embodiment, the fully immersed lithium ba