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Columnar lithium battery with safety protection device

A safety protection device and lithium battery technology, which is applied to small-sized batteries/battery packs, large-sized batteries/battery packs, battery covers/end covers, etc., and can solve problems such as potential safety hazards, explosion accidents, and low safety performance , to achieve the effect of preventing explosion, low cost and improving safety performance

Inactive Publication Date: 2017-03-29
TIANJIN BANGLI CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The safety performance of existing lithium batteries is not high, and explosion accidents often occur, causing great safety hazards

Method used

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  • Columnar lithium battery with safety protection device

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Embodiment Construction

[0012] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0013] like figure 1 A cylindrical lithium battery with a safety protection device shown includes a casing (7) and an electric core (8), the electric core (8) is arranged in the casing (7), and the casing ( 7) Electrolyte (6) is installed between the cell (8), the upper end of the casing (7) is open, the upper end of the cell (8) is provided with an upper wire (1), and the lower end is provided with a lower wire (9), the upper end of the housing (7) is provided with a sealant layer (4) to seal the housing (7), the upper wire (1) passes through the sealant layer (4), the A plastic sheet (5) is provided on the lower surface of the sealant layer (4). The upper part of the ...

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PUM

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Abstract

The invention discloses a columnar lithium battery with a safety protection device. The columnar lithium battery comprises a housing (7) and an electric core (8), wherein the electric core (8) is arranged in the housing (7); an electrolyte (6) is filled between the electric core (8) and the housing (7); the upper end of the housing (7) is opened; an upper lead (1) is arranged at the upper end of the electric core (8), and a lower lead (9) is arranged at the lower end of the electric core (8); a sealing glue layer (4) is arranged at the upper end of the housing (7) and is used for sealing the housing (7); the upper lead (1) passes through the sealing glue layer (4); and a plastic sheet (5) is arranged on the lower surface of the sealing glue layer (4). The safety performance of products can be improved on the basis of without changing existing production technology, and the columnar lithium battery is explosion-proof, low in cost, simple in structure and novel in design and is of practicability.

Description

technical field [0001] The invention designs a lithium battery, in particular to a columnar lithium battery with a safety protection device. Background technique [0002] A lithium-ion battery is a rechargeable battery that primarily relies on the movement of lithium ions between the positive and negative electrodes to function. During the charging and discharging process, Li+ intercalates and deintercalates back and forth between the two electrodes: when charging the battery, Li+ is deintercalated from the positive electrode, inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true when discharging. Generally, batteries containing lithium elements are used as electrodes. It is a representative of modern high-performance batteries. The safety performance of existing lithium batteries is not high, and explosion accidents often occur, causing great safety hazards. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M2/04H01M2/08H01M2/34H01M50/107H01M50/147H01M50/179H01M50/183H01M50/581
CPCH01M50/10H01M50/147H01M50/183H01M50/581H01M50/572Y02E60/10
Inventor 覃湘东
Owner TIANJIN BANGLI CHEM TECH CO LTD