一种软包电池装置及电池
By designing a serpentine heat dissipation channel and a temperature-controlled fan assembly in the pouch cell, the problem of poor heat dissipation in pouch cells was solved, achieving rapid and uniform heat dissipation of the cell and improving battery performance and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEWARK (SHANGHAI) TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pouch batteries have poor heat dissipation, which can easily cause heat buildup in multiple battery cells, affecting battery performance and lifespan, and posing safety hazards.
A pouch cell battery device is designed, which uses multiple fins and extended ends to form a serpentine heat dissipation channel. Combined with a temperature controller and fan assembly, it realizes active and passive heat dissipation modes, utilizes external airflow for cooling, and ensures uniform heat dissipation of the battery cells.
By switching between active and passive heat dissipation modes, rapid and uniform heat dissipation of the battery cells is achieved, improving the battery's heat dissipation efficiency and safety, preventing heat accumulation, and extending the battery's lifespan.
Smart Images
Figure CN224519953U_ABST
Abstract
Claims
1. A pouch battery device, comprising a housing (1) and a plurality of battery cells (2), wherein the plurality of battery cells (2) are arranged and installed within the housing (1), characterized in that: The electrode substrate of the battery cell (2) extends to one end to form an extension end (3). The positive and negative ends of the other end of the battery cell (2) are connected to tabs (4). The tabs (4) are embedded in the housing (1). The open end of the housing (1) is bolted to a cover plate (5). Multiple extension ends (3) are embedded in the cover plate (5). Multiple fins (51) are fixedly connected in the cover plate (5). The multiple extension ends (3) and the multiple fins (51) are staggered and arranged to form a serpentine heat dissipation channel. The cover plate (5) has multiple air inlet slots (9) on one side, and the air outlet of the air inlet slot (9) is connected to an inclined rubber strip (10). The cover plate (5) has an air outlet (11) on the other side. An air supply assembly is provided between the housing (1) and the cover plate (5). The air supply assembly is located on one side of the air inlet slot (9). The air supply assembly is used to drive the external airflow into the heat dissipation channel for heat dissipation when the housing (1) reaches a preset temperature, and push the rubber strip (10) to elastically close the air inlet slot (9). 2.The pouch battery device of claim 1, wherein: The extension end (3) and the fin (51) are arranged in parallel, and the lengths of the extension end (3) and the fin (51) are equal. 3.The pouch battery device of claim 1, wherein: The air supply assembly includes a fan (7). The fan (7) is embedded and connected to one side of the cover plate (5) and the housing (1). The fan (7) is electrically connected to a thermostat (8). The thermostat (8) is embedded and connected to the bottom surface of the cover plate (5). The thermostat (8) is electrically connected to the tabs (4) of the positive and negative terminals of the battery cell (2). The thermostat (8) is used to turn on the fan (7) when the preset temperature is reached inside the housing (1) so as to drive the external airflow into the heat dissipation channel for heat dissipation.
4. The pouch battery device of claim 3, wherein: The width of the air inlet groove (9) is smaller than the width of the air outlet (11), and the multiple air inlets (9) are equidistantly distributed on the cover plate (5).
5. The pouch battery device of claim 4, wherein: A dustproof net (12) is embedded in one side of the cover plate (5), and the dustproof net (12) is fitted onto the air outlet (11).
6. The pouch battery device of claim 1, wherein: Multiple slots are provided on both sides of the housing (1), and multiple abutment blocks (6) are connected to the bottom sides of the cover plate (5). The abutment blocks (6) are matched and snapped into the slots and abut against the upper ends of several battery cells (2).
7. The pouch battery device of claim 1, wherein: A heat-conducting strip (13) is provided between several of the battery cells (2). The heat-conducting strip (13) has a horizontal end and a vertical end, and multiple vertical ends are connected to the horizontal end of the heat-conducting strip (13).
8. The pouch battery device of claim 7, wherein: The length of the horizontal end of the heat-conducting strip (13) is less than the length of the battery cell (2), and ventilation grooves (14) are provided in the multiple vertical ends of the heat-conducting strip (13).
9. A pouch battery applied to the pouch battery device according to any one of claims 1 to 8, characterized by: The pouch battery includes a battery cell (2), the electrode substrate of the battery cell (2) extends to one end to form an extension end (3), and the positive and negative ends of the other end of the battery cell (2) are connected to tabs (4), and the extension end (3) is used for heat dissipation.