一种储能锂电池液冷装置
By combining heat-conducting plates and liquid cooling pipes between the cells, the problems of poor cooling effect and uniformity of lithium battery packs are solved, achieving rapid and uniform cooling and significantly improving the service life and safety of lithium batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CHIKU NEW ENERGY TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lithium battery pack cooling methods suffer from poor cooling effect, poor uniformity, and high energy consumption. Especially under the conditions of fast charging or high-power discharging of lithium battery pack systems, it is difficult to dissipate heat evenly inside the cells, affecting service life and safety.
Design a liquid cooling device for energy storage lithium batteries. By setting heat-conducting plates between the cells and liquid cooling pipes surrounding the cells, heat is transferred by the heat-conducting plates and the coolant is circulated through the liquid cooling pipes for rapid and uniform cooling, ensuring uniform cooling of each cell.
It achieves rapid and uniform cooling of the entire battery pack, improving battery life and safety performance. The cooling speed is more than 10 times faster than air cooling and more than 6 times faster than traditional liquid cooling plates. Temperature uniformity is improved, and the temperature difference between cells is less than 2℃.
Smart Images
Figure CN224519955U_ABST
Abstract
Claims
1. An energy storage lithium battery liquid cooling device, characterized in that, include: The battery pack contains several rows of cells, and a heat-conducting sheet is attached between adjacent cells in each row. Liquid cooling pipes are arranged around each row of battery cells. The liquid cooling pipes include an input pipe, an output pipe, and several intermediate pipes connected to the input pipe and the output pipe. Each intermediate pipe is spaced apart from each row of battery cells and extends along one end of each row of battery cells to the other end. Each intermediate pipe is snapped onto a corresponding heat-conducting plate.
2. The liquid cooling device for energy storage lithium battery according to claim 1, characterized in that, The intermediate tube includes two parallel straight sections and a curved section located between the two straight sections. The two straight sections are respectively connected to the input tube and the output tube.
3. The liquid cooling device for energy storage lithium battery according to claim 2, characterized in that, Connecting pipes are installed across each bend.
4. The liquid cooling device for energy storage lithium battery according to claim 2, characterized in that, The heat-conducting sheet includes a substrate and two silicone pads covering both sides of the substrate. The two sides of the substrate extend outward and partially protrude from the silicone pads to form a connecting part.
5. The liquid cooling device for energy storage lithium battery according to claim 4, characterized in that, Each connecting part has several slots along its edge, and the straight part is engaged in the corresponding slot.
6. The liquid cooling device for energy storage lithium battery according to claim 5, characterized in that, The corresponding slots on two adjacent connecting parts surround each other to form a through hole.
7. The energy storage lithium battery liquid cooling device according to claim 5, characterized in that, The connecting part is covered with auxiliary pieces on both sides, and each auxiliary piece has a notch that corresponds to each slot.