Battery module

A technology of battery modules and batteries, which is applied to battery components, secondary batteries, circuits, etc., can solve the problems of low thermal runaway prevention and control rate, easy short circuit of lithium-ion battery modules, etc., and achieve thermal runaway prevention The effect of high control rate and prevention of thermal runaway

Pending Publication Date: 2022-07-01
缙云县锐普电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] When the chemical substance inside the lithium-ion battery is above 80°C, an irreversible chemical reaction will occur, resulting in thermal runaway. Chinese invention patent, publication number: CN109524742A, publication date: 2019.03.26, discloses a lithium-ion battery that prevents thermal runaway The ion battery module prevents thermal runaway of the battery through a heat-conducting structure and a flame-retardant structure, thereby avoiding accidents. The disadvantage is that the lithium-ion battery module is prone to short circuits, resulting in a low thermal runaway prevention and control rate.

Method used

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Embodiment 1

[0038] combined with Figure 1-7 , this embodiment provides a battery module, including:

[0039] At least two cells 1, adjacent cells 1 in series or parallel;

[0040] The frame body 2, the battery core 1 is located in the frame body 2;

[0041] Fuse 4, fuse 4 is connected between adjacent cells 1;

[0042] The thermally conductive components 5 located at both ends of the cell 1;

[0043] Thermal insulation components 8 between adjacent cells 1 .

[0044] Specifically, the cell 1 is used to provide electrical energy, and the connection between adjacent cells 1 can be in series or parallel; the frame body 2 is used for accommodating the cell 1, the heat-conducting component 5, the fuse 4, etc.; the fuse 4 is used for connection When the adjacent cell 1 is short-circuited, or when the cell 1 generates a lot of heat due to failure, the fuse 4 is blown in time, thereby disconnecting the connection between the adjacent cells 1 and reaching the limit. The fuse 4 can be a ceram...

Embodiment 2

[0060] combined with Figure 1-7 , Compared with the technical solution of Embodiment 1, the cooling plate 1 61, the cooling plate 2 71 and the cover body 3 of this embodiment can be improved as follows:

[0061] Further, the distance between the adjacent first heat dissipation plates 61 is smaller than the distance between the adjacent second heat dissipation plates 71 .

[0062] Specifically, on the premise of occupying the same space, the total surface area of ​​the first radiating plates 61 is larger than that of the second radiating plates 71 , so that the cooling effect of the first cooling plate 61 is better than that of the second cooling plate 71 .

[0063] Further, the cover body 3 includes a main body 33 , and both ends of the main body 33 are integrally connected with a folded portion 34 . The frame body 2 is provided with a folded portion 21 . The groove 22 , the first heat dissipation part 6 and the second heat dissipation part 7 are all connected to the main bo...

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Abstract

The invention discloses a battery module, and relates to the technical field of batteries, the battery module comprises at least two battery cells, adjacent battery cells are connected in series or in parallel; the battery cell is positioned in the frame body; the fuses are positioned at the joints of the adjacent battery cells; the heat-conducting components are positioned at two ends of the cell; and the heat insulation components are positioned between the adjacent battery cells. Aiming at the technical problem of low thermal runaway prevention and control rate of the lithium ion battery module, the invention provides the battery module which is high in thermal runaway prevention and control rate.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module. Background technique [0002] Lithium-ion battery is a kind of battery with lithium alloy metal oxide as positive electrode material and graphite as negative electrode material, and uses non-aqueous electrolyte. It has the advantages of high voltage, large specific energy and small self-discharge. It is widely used in the fields of automobile and aerospace. [0003] When the chemical substances inside the lithium-ion battery are above 80 °C, an irreversible chemical reaction will occur, resulting in thermal runaway. Chinese invention patent, publication number: CN109524742A, publication date: 2019.03.26, discloses a lithium ion battery that prevents thermal runaway The ion battery module prevents the thermal runaway of the battery through the thermal conductivity structure and the flame retardant structure, thereby avoiding the occurrence of accidents. SUMM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/653H01M50/583H01M10/658
CPCH01M10/613H01M10/653H01M50/583H01M10/658
Inventor 刘德俊杜松显卢江涛唐伟
Owner 缙云县锐普电子科技有限公司
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