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Structure for improving safety of needling operation outside battery

A battery external and safe technology, applied in the direction of batteries, secondary batteries, circuits, etc., can solve the problems of poor battery acupuncture safety and imperfect solutions, and achieve improved acupuncture safety, simple structure, and low cost. Effect

Inactive Publication Date: 2015-09-30
BEIJING BOSTON POWER BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a structure for improving the safety of battery external acupuncture, which solves the problems of poor battery acupuncture safety and imperfect solutions in the prior art

Method used

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  • Structure for improving safety of needling operation outside battery
  • Structure for improving safety of needling operation outside battery
  • Structure for improving safety of needling operation outside battery

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Such as figure 1 , figure 2 As shown, the structure for improving the safety of battery external acupuncture in this embodiment includes a battery having a positive pole 1 and a negative shell 2. In this embodiment, the battery is a cylindrical battery.

[0026] The negative electrode case 2 is wrapped with an insulating layer 3. In this embodiment, the insulating layer 3 is wrapped on the side of the battery. The insulating layer 3 is an insulating c...

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Abstract

The invention provides a structure for improving the safety of the needling operation outside a battery, which comprises a battery. The battery is provided with a positive pole and a negative shell. The outside of the negative shell is wrapped with an insulating layer. The outside of the insulating layer is wrapped with a conductive shell. The conductive shell and the positive pole are electrically connected. The conductive shell and the negative shell are insulated from each other by the insulating layer. The structure is simple and low in cost. During the needling process, a conductive loop is formed by the conductive shell connected with the positive pole together with pins and the negative shell. In this way, the current and the heat can be effectively led out, so that the needling safety of the battery is improved. The invention provides a modified external structure for the battery and the modified external structure can be combined with a battery module to be implemented. Meanwhile, the electrochemical performance of the battery is free from being influenced. Therefore, the structure is capable of effectively improving the needling safety.

Description

technical field [0001] The invention relates to the technical field of battery safety, in particular to a structure for improving the safety of battery external acupuncture. Background technique [0002] Lithium-ion batteries are used as on-board power supplies for electric vehicles, and the development level is increasing year by year. As a primary factor for whether lithium-ion batteries can be widely used in electric vehicles, safety is very important. The safety of the battery not only depends on the safety and stability of the electrochemical system inside the battery (positive electrode, negative electrode, separator, electrolyte), but also the structural design and process control of the battery have a great impact on the safety of the battery. [0003] Cylindrical lithium-ion batteries have gradually been tried and applied in the field of electric vehicles due to their superior energy density, but the increase in energy density will bring about a decrease in safety....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/0587
CPCH01M10/0525H01M10/0587H01M2200/00H01M2220/20Y02E60/10Y02P70/50
Inventor 安富强杨智宁穆鑫赵洪量王浩然
Owner BEIJING BOSTON POWER BATTERY
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