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Battery module and battery pack

A battery module and battery technology, which is applied to battery components, secondary batteries, circuits, etc., can solve problems such as accelerated thermal diffusion, reduced heat dissipation capacity of a single battery, and fire and explosion of battery modules

Active Publication Date: 2021-04-20
CALB CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since the side plate blocks the heat exchange channel between the single battery and the external environment through the side of the battery module, the heat dissipation capacity of the single battery is greatly reduced
[0004] Accordingly, when thermal runaway occurs in individual cells of the battery module, part of the heat is blocked by the heat insulation pad, and due to the high thermal conductivity of the metal side plate, part of the heat generated by the thermal runaway will pass through the side plate to the heat insulation pad. The rapid transfer of adjacent single cells accelerates the heat diffusion phenomenon, which eventually leads to the fire and explosion of the battery module

Method used

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Embodiment Construction

[0050] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and that the description and drawings therein are illustrative in nature and not intended to limit the present invention. invention.

[0051] In the following description of various exemplary embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of example different exemplary structures, systems, and embodiments in which aspects of the invention may be implemented and steps. It is to be understood that other specific arrangements of components, structures, exemplary devices, systems and steps may be utilized and structural and functional modifications may be made without departing from the scope...

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Abstract

The invention relates to the technical field of batteries, in particular to a battery module and a battery pack. The battery module comprises a battery column, heat insulation pads and a side plate; the battery column comprises a plurality of single batteries, and the plurality of single batteries are arranged along a first direction; one heat insulation pad is arranged between two adjacent single batteries in the battery column; the side plate is arranged on the side surface of the battery column and extends along a first direction; the side plate is provided with at least one heat insulation area corresponding to the position of the heat insulation pad, the heat insulation area is any one of a through hole, a blind hole and a notch or a combination of more than two of the communicated through hole, blind hole and notch, and at least one part of the orthographic projection of each heat insulation pad on the side plate is included in the heat insulation area. Through the design, the battery module provided by the invention can inhibit a thermal diffusion phenomenon by reducing heat transfer between the adjacent single batteries of the thermal insulation pads when thermal runaway happens to individual single batteries.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module and a battery pack. Background technique [0002] The stacking of single cells in existing battery modules is usually done by bonding the single cells with structural glue, placing heat insulation pads between the cells, and then welding through the metal end plates at both ends of the battery module and the metal side plates on both sides. Forms the fixed frame of the module. [0003] However, since the side plate blocks the heat exchange channel between the single battery and the external environment through the side of the battery module, the heat dissipation capacity of the single battery is greatly reduced. [0004] Accordingly, when thermal runaway occurs in individual cells of the battery module, part of the heat is blocked by the heat insulation pad, and due to the high thermal conductivity of the metal side plate, part of the heat generated by the the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/658H01M50/258H01M50/204H01M50/244
CPCY02E60/10H01M50/204H01M50/289H01M10/615H01M10/658
Inventor 李周礼牛力孙国华李新建郭其鑫
Owner CALB CO LTD
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