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Power battery top cover and power battery with high space utilization

A power battery and utilization technology, applied in the direction of battery cover/end cover, battery, secondary battery, etc., can solve the problems of module capacity and volume energy density, low space utilization, etc., to improve space utilization, The effect of reducing material processing costs and preventing corrosion

Active Publication Date: 2022-04-15
SUNWODA ELECTRIC VEHICLE BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The space utilization rate in the module is not high, and the capacity and volumetric energy density of the entire module are greatly affected

Method used

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  • Power battery top cover and power battery with high space utilization
  • Power battery top cover and power battery with high space utilization
  • Power battery top cover and power battery with high space utilization

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0036] The invention discloses a power battery, referring to figure 1 , the overall shape of the power battery is square, including a battery case 90, a bare cell housed in the battery case, an electrolyte poured into the battery case, and a power unit sealed and installed on the power battery case and provided with a conductive unit. Battery top cover. The power battery may be a lithium ion battery.

[0037] refer to figure 2 , image 3 , the above-mentioned power battery top cover 1 includes a top cover sheet 11, a first conductive unit 12 sealed on the top cover sheet 11, a second conductive unit 13, an explosion-proof valve 14, a liquid injection hole 15, and a lower insulating member 16. The lower insulating part 16 is connected under the top cover sheet 11 by buckli...

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Abstract

The invention discloses a power battery top cover, which comprises a top cover sheet, two conductive units sealed and arranged on the top cover sheet, an explosion-proof valve, a liquid injection hole structure, and a lower insulating part. The conductive unit includes: a conductive base block protruding from the top cover sheet, a safety structure that can be turned up when punched, welded aluminum plates and plastics; the conductive base block is extended outwardly to form a conductive sheet. Integrate safety structural parts on the conductive unit to enhance the safety performance of the battery cell; without affecting the effective space inside the battery, eliminate the height of the pole protruding from the outside of the battery, increase the height of the battery cell shell, and improve the space utilization of the module; The structure of the top cover is simplified, the number of top cover accessories is reduced, and the cost is reduced; the structure of the conductive unit is optimized, the strength of the conductive unit is improved, and the cost of material processing is reduced; the lower plastic insulating part adopts an integrated structure, which enhances the structural strength of the lower plastic and is easy to assemble. Strong manufacturability.

Description

technical field [0001] The invention mainly relates to the technical field of power batteries, in particular to a power battery top cover with high space utilization and a power battery including the power battery top cover. Background technique [0002] With the increasingly prominent environmental problems, low-carbon economy has become the mainstream of future economic development. The increasingly severe air situation has further promoted the rise of new energy vehicles. As representatives of new energy vehicles, hybrid vehicles and pure electric vehicles have gradually been recognized by manufacturers and consumers. As the main power source of new energy vehicles, power batteries have become one of the key components of electric vehicles. [0003] As a key component of electric vehicles, power batteries have a major impact on the power, economy, and safety of the vehicle. With the gradual standardization of the power battery market, the specifications of power batter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/586H01M50/571H01M50/528H01M50/15H01M10/0525H01M50/147H01M50/572H01M50/578
CPCH01M10/0525H01M2220/20H01M50/147H01M50/15H01M50/528H01M50/571H01M50/572H01M50/578Y02E60/10
Inventor 戴亨伟周逸李升高张耀
Owner SUNWODA ELECTRIC VEHICLE BATTERY CO LTD
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