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External thermal insulation device for battery stack

A battery stack and external thermal insulation technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as poor thermal insulation ability

Inactive Publication Date: 2019-08-23
BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an external thermal insulation device for battery stacks, which can solve the problem of poor thermal insulation capability in the prior art

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  • External thermal insulation device for battery stack

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.

[0019] It should be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the steps related to the present invention are omitted. Invent other details that don't really matter.

[0020] figure 1 It is a schematic structural diagram of a battery stack external heat preservation device provided by an embodiment of the present inve...

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Abstract

The invention relates to the technical field of thermal battery thermal insulation, and discloses an external thermal insulation device for a battery stack. The device comprises thermal insulation assemblies arranged at the two axial ends of a cell stack respectively, wherein each of the thermal insulation assemblies comprises a first thermal insulation gasket layer, a second thermal insulation gasket layer and a heating heat-storage layer arranged between the first thermal insulation gasket layer and the second thermal insulation gasket layer, and the first thermal insulation gasket layer andthe second thermal insulation gasket layer are used for protecting the heating heat-storage layer, and the heating heat-storage layer is used for releasing heat. Therefore, the thermal insulation effect of the two ends of the thermal battery can be effectively enhanced through the thermal insulation device outside the battery stack, and the working time of the thermal battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of thermal battery heat preservation, in particular to an external heat preservation device for a battery stack. Background technique [0002] Thermal battery is a kind of heat-activated reserve battery, which uses molten salt as electrolyte and uses heat source to melt and activate the disposable reserve battery. Under the existing thermal battery technology, the internal temperature of most thermal batteries needs to be maintained at around 400°C to output effectively. With the continuous increase of power consumption of current electrical equipment, the working time of thermal batteries is getting longer and longer, and thermal insulation design has gradually become one of the key factors restricting working time. The traditional thermal battery insulation technology mainly improves the thermal life of the thermal battery by increasing the thickness of the thermal insulation layer or using high-efficienc...

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Application Information

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IPC IPC(8): H01M10/615
CPCH01M10/615Y02E60/10
Inventor 王京亮吴启兵王志亮米林王建勇李云伟吴展强陈挺石斌贺焰潘志鹏
Owner BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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