A lithium battery module
By using a combination of plastic pads and positioning plates between lithium battery cells, the problems of poor natural heat dissipation and pressure on lithium battery modules are solved, achieving efficient heat dissipation and simplified assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANNING TIMES CHINA ENERGY LI-ION BATTERY CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-14
AI Technical Summary
Existing lithium battery modules have poor natural heat dissipation capabilities. Setting up a separate heat dissipation structure is costly and affects the flexibility of splicing. When stacked together, they bear a heavy pressure and have low natural heat dissipation efficiency.
The lithium battery unit is fixed to the positioning plate with bolts. Plastic pads are used to set heat dissipation grooves between adjacent units, forming a reserved heat dissipation gap and playing a role in heat conduction isolation, reducing longitudinal pressure.
It improves the natural heat dissipation capacity of lithium battery modules, reduces production costs, simplifies the assembly process, and reduces the longitudinal pressure between units.
Smart Images
Figure CN224502014U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lithium battery technology and relates to a lithium battery module. Background Technology
[0002] Lithium-ion battery modules are battery assemblies formed by combining lithium-ion battery cells to achieve target power parameters. Currently, a typical modular assembly structure is commonly used, where lithium-ion battery cells are assembled using an assembly structure on the casing. Due to poor heat dissipation during charging and discharging, some modules have separate heat dissipation structures for the entire module, while others have independent heat dissipation structures on each cell. Of course, there are also inefficient natural heat dissipation methods. The current approach has the following drawbacks: 1. Setting up separate heat dissipation structures is costly and complex; 2. Setting up heat dissipation structures for the entire assembly significantly interferes with the flexibility of the splicing method, which is not conducive to mass production; 3. Stacking cells not only puts pressure on the casing of the bottom lithium-ion battery cells, but also affects the efficiency and effect of natural heat dissipation due to their close contact. Utility Model Content
[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a lithium battery module. The technical problem to be solved by this invention is how to improve the module's natural heat dissipation capability.
[0004] The purpose of this utility model can be achieved through the following technical solution: a lithium battery module, characterized in that it includes a plurality of lithium battery units and a floor base, the floor base includes a base plate and two positioning plates located on both sides of the base plate, the housing of the lithium battery unit has two longitudinal slots that can be adapted to the two positioning plates respectively, each lithium battery unit is stacked longitudinally on the base plate, and a pad is provided between adjacent lithium battery units, the pad having heat dissipation grooves perpendicular to the positioning plates.
[0005] Furthermore, the upper or lower surface of the housing of the lithium battery cell has a countersunk opening adapted to the pad, the depth of which is less than the thickness of the pad.
[0006] Furthermore, the pad is made of plastic.
[0007] Furthermore, the housing of the lithium battery unit is fixedly connected to the positioning plate by bolts.
[0008] The pads provide a heat dissipation gap between adjacent lithium battery cells, preventing them from contacting each other. Furthermore, the pads and positioning plates act as a barrier between adjacent lithium battery cells, providing some thermal conductivity protection. Finally, the bolts securing the lithium battery cells to the positioning plates significantly reduce the longitudinal pressure between the cells. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the assembled lithium battery module.
[0010] Figure 2 This is an exploded view of the lithium battery module.
[0011] In the diagram, 1 is the lithium battery unit; 2 is the base plate; 3 is the positioning plate; 4 is the longitudinal slot; 5 is the pad; 6 is the heat dissipation groove; and 7 is the countersunk opening. Detailed Implementation
[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0013] like Figure 1 and Figure 2 The lithium battery module shown includes several lithium battery units 1 and a floor base. The floor base includes a base plate 2 and two positioning plates 3 located on both sides of the base plate 2. The housing of the lithium battery unit 1 has two longitudinal slots 4 that can be adapted to the two positioning plates 3 respectively. Each lithium battery unit 1 is stacked longitudinally on the base plate 2. A pad 5 is provided between adjacent lithium battery units 1. The pad 5 has heat dissipation grooves 6 that are perpendicular to the positioning plates 3.
[0014] The upper or lower surface of the housing of the lithium battery cell 1 has a countersunk opening 7 that is adapted to the pad 5. The depth of the countersunk opening 7 is less than the thickness of the pad 5, and the pad 5 is made of plastic.
[0015] The housing of the lithium battery unit 1 is fixedly connected to the positioning plate 3 by bolts.
[0016] The pad 5 provides a heat dissipation gap between adjacent lithium battery units 1 in the longitudinal direction, preventing them from contacting each other. In addition, the pad 5 and the positioning plate 3 form an isolation between adjacent lithium battery units 1 in the longitudinal direction, which can play a certain role in heat conduction isolation. After the lithium battery unit 1 is fixed to the positioning plate 3 with bolts, the longitudinal pressure between each lithium battery unit 1 in the longitudinal direction is greatly reduced.
[0017] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A lithium battery module, characterized in that, It includes several lithium battery units (1) and a floor base. The floor base includes a base plate (2) and two positioning plates (3) located on both sides of the base plate (2). The housing of the lithium battery unit (1) has two longitudinal slots (4) that can be adapted to the two positioning plates (3) respectively. Each lithium battery unit (1) is stacked longitudinally on the base plate (2). A pad (5) is provided between adjacent lithium battery units (1). The pad (5) has heat dissipation grooves (6) that are perpendicular to the positioning plates (3).
2. The lithium battery module according to claim 1, characterized in that, The upper or lower surface of the housing of the lithium battery unit (1) has a countersunk opening (7) adapted to the pad (5), the depth of which is less than the thickness of the pad (5).
3. A lithium battery module according to claim 2, characterized in that, The pad (5) is made of plastic.
4. A lithium battery module according to claim 2, characterized in that, The housing of the lithium battery unit (1) is fixedly connected to the positioning plate (3) by bolts.