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Removable lithium-ion battery unit free of spot welding, battery module and application thereof

A lithium-ion battery, battery cell technology, applied in battery pack parts, batteries, electrical components, etc., can solve the problems of cumbersome series-parallel process, high cost, environmental pollution, etc., to improve production efficiency and production quality, and simplify production. Craftsmanship, easy-to-use effects

Inactive Publication Date: 2017-03-22
DONGGUAN DRN NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Moreover, the spot-welded battery pack structure is extremely inconvenient in terms of battery maintenance and replacement. Some battery packs are designed as an integrated structure, and the series-parallel connectors are nickel strips with various specifications. They are all combined into an inseparable whole. If one of the batteries fails, it will lead to the scrapping of the entire battery pack. Even if it can be repaired, it will cost a lot
The battery contains a lot of heavy metals that seriously pollute the environment, and the disposal of scrapped batteries is also very complicated. If the battery is not handled properly, it will cause serious pollution to the environment

Method used

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  • Removable lithium-ion battery unit free of spot welding, battery module and application thereof
  • Removable lithium-ion battery unit free of spot welding, battery module and application thereof
  • Removable lithium-ion battery unit free of spot welding, battery module and application thereof

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Experimental program
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specific Embodiment approach 1

[0089] See Figure 2-5 As shown, a detachable lithium-ion battery unit without spot welding includes a battery 1 and a support 2, and the battery 1 is installed in the support 2 without loosening and detachable; the contact between the battery 1 and the support 2 is guaranteed without loosening It is tight enough that the resistance and current will not change due to the loosening of the battery 1. It is safe and reliable. The installation method is detachable, easy to operate, and does not require spot welding. The bracket 2 can be installed with 2n batteries 1, where n is positive Integer, when an even number of batteries 1 needs to be installed, the scheme of installing 2n batteries 1 is adopted; the bracket 2 can be installed with 2n+1 batteries 1, when an odd number of batteries 1 needs to be installed, 2n+1 batteries 1 are installed The scheme of battery 1, where n is a positive integer.

[0090] The bracket 2 in this embodiment includes a positive mounting part 21 and ...

specific Embodiment approach 2

[0093] See Figure 6-7 As shown, the difference between this embodiment and specific embodiment 1 lies in the structure of the bracket 2,

[0094] The support 2 is composed of an upper top plate 23, a lower bottom plate 24, a side plate 25, a rear side plate 26, and a front cover plate 27. It forms a storage space for the battery 1 and protects the battery 1 from damage on three sides. The battery 1 is not loose after being installed. The upper top plate 23 and the lower bottom plate 24 are provided with corresponding guide grooves 31 for the metal connecting pieces in the longitudinal and transverse directions. The periphery of the upper top plate 23 is provided with clips 231 and fasteners 232 , and the periphery of the lower bottom plate 24 is also provided with fasteners 241 and fasteners 242 for connecting and assembling with another battery unit. The side panels 25 , the rear side panels 26 and the front cover 27 are all provided with hollow areas, which can effectivel...

specific Embodiment approach 3

[0096] See Figure 1-5 As shown, in this embodiment, a spot-welding-free detachable lithium-ion battery module that can be flexibly disassembled and assembled includes a number of battery units 10 described in Embodiment 1, and the battery units 10 are detachably assembled through activities. , the assembly direction of the battery unit 10 is the three-dimensional X-axis, Y-axis and Z-axis directions. The assembly direction of this embodiment is the horizontal direction of the X-axis and the vertical assembly of the Y-axis. It also includes a casing 4 for protecting the battery module. The battery module is accommodated in the casing 4. The casing 4 includes a shell cover 41 and a shell cavity 42, and the shell cover 41 is connected with the shell cavity 42. The shell cover 41 is detachably connected to the shell cavity 42 , and the detachable connection includes snap joints, screw joints and hinge joints. The two symmetrical sides of the shell cover 41 are symmetrically pro...

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Abstract

The invention belongs to the field of lithium-ion batteries, and particularly relates to a removable lithium-ion battery unit free of spot welding, a battery module and an application thereof. The battery unit comprises batteries and a bracket, wherein the batteries are tightly and removably arranged in the bracket; the bracket can be provided with 2n batteries or the bracket can be provided with 2n+1 batteries, wherein n is a positive integer; and the battery module is manufactured by the batteries. The lithium-ion battery unit provided by the invention is free of spot welding, convenient to disassemble and assemble, safe and reliable, and resistance and current changes, caused by contact, in battery application are avoided.

Description

technical field [0001] The invention belongs to the field of lithium ion batteries, in particular to a spot welding-free detachable lithium ion battery cell module and its application. Background technique [0002] The assembly methods of lithium battery packs in the industry emerge in endlessly, and various assembly methods are used more and more widely in the battery field. The assembly structure in the industry is mainly spot welding. Usually, there are the following solutions: 1. Glue bonding, nickel with spots 2. Assembling the overall bracket, nickel strip spot welding; 3. For other combined cell supports, nickel strip spot welding. The positive and negative electrodes of the battery are welded to the conductive sheet, and the shape and structure of the battery pack are fixed and cannot be changed, resulting in a single application range of the battery pack, and one battery pack can only be applied to specific products. However, the introduction of new products has le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M2/20H01M10/0525H01M50/244H01M50/262H01M50/264H01M50/269H01M50/50
CPCH01M10/0525H01M2220/10H01M2220/20H01M50/50H01M50/20Y02E60/10
Inventor 刘厚德刘君雁张申
Owner DONGGUAN DRN NEW ENERGY
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