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Lithium battery module and block structure of lithium battery module

A group structure, lithium battery technology, applied in small-sized batteries/battery packs, large-sized batteries/battery packs, battery pack components, etc., can solve the problems of inconvenient secondary use of 18650 cells and achieve The effect of compact structure, high reliability and lower production cost

Pending Publication Date: 2017-01-04
BEIJING BOSTON POWER BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a lithium battery module and a group structure of the lithium battery module, which solves the problem of inconvenient secondary use of the existing 18650 battery cells when automobile batteries are grouped

Method used

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  • Lithium battery module and block structure of lithium battery module
  • Lithium battery module and block structure of lithium battery module
  • Lithium battery module and block structure of lithium battery module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 and figure 2 As shown, this embodiment provides a lithium battery module, figure 1 The overall appearance of the lithium battery module is shown. The two inner hexagonal holes seen from the top are used to pass through the connecting rods when the lithium battery membrane blocks are grouped. The terminals are bent and embedded in the plastic casing with nuts to facilitate external wiring.

[0029] figure 2 The detailed structure of the lithium battery module is shown, including: a lithium battery cell; a plastic casing, the plastic casing is composed of an upper casing 1 and a lower casing 2, and four fixed lithium batteries are arranged inside the upper casing 1 and the lower casing 2. The slot 3 of the battery cell 4; two busbars 5, on which the nickel sheet 15 is spot-welded, the nickel sheet 15 is welded to the positive and negative poles of the lithium battery cell 4, and one end of the busbar 5 faces the plastic shell The side wall of the bu...

Embodiment 2

[0036] image 3 An example of the detailed structure of a 4×4 group of lithium battery modules is shown (one module is removed so that the internal structure can be seen clearly). Including 16 lithium battery modules with the same structure, the lithium battery modules are fixedly connected through the hexagonal stud connecting rod 11 passing through the hole column to form a larger lithium battery module, the hexagonal stud connecting rod 11 passes through the end plate 12, and passes through the The fastener 13 installed at the end of the connecting rod is fixed on the end plate 12, so that 16 lithium battery modules form a larger lithium battery module.

[0037] Both ends of the reinforcing beam 14 are fixedly connected to the end plate 12 respectively, and the reinforcing beam 14 is connected to the end plate 12 to increase the stiffness of the large module in the y direction.

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Abstract

The invention discloses a lithium battery module including a plastic casing, two busbars, insulation thin plates and an insulation plate; the plastic casing comprises an upper casing body and a lower casing body, and the interior of the upper casing body and the interior of the lower casing body are provided with a plurality of slotted holes for fixing lithium battery electric cores; nickel pieces are spot-welded on the busbars and are welded onto positive terminals and negative terminals of the lithium battery electric cores; one end of each busbar is bended perpendicularly to the lateral wall of the plastic casing, and a part, where the busbars are bended perpendicularly, of the plastic casing body is pre-buried with nuts; the insulation thin plates are arranged between the lithium battery electric cores and the busbars; the insulation plate is mounted on the top face of the upper casing body or a groove body in the bottom face of the lower casing body. The invention discloses a block structure of the lithium battery module. The lithium battery module can be flexibly grouped, is convenient to assemble, is easy for secondary use of 18650 electric cores, and is convenient to both transport and store.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a lithium battery module and a group structure of the lithium battery module. Background technique [0002] Lithium batteries with 18650 standard cells (that is, 18 means the diameter of the cell is 18mm, 65 means the length of the cell is 65mm, and 0 means the shape of the cell is round) have always been limited by standardized modules and internal structures. At present, the number of 18650 cells is often relatively high when the car batteries are grouped. After grouping, since the shells are mostly plastic molded parts, it is very inconvenient to design for secondary use. This results in increased design and processing costs. Therefore, there is a greater need for a small parallel module that can be flexibly grouped, easy to assemble, and convenient to transport and store. Contents of the invention [0003] The invention provides a lithium battery module and a group stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M2/30H01M10/058
CPCH01M10/058H01M50/10H01M50/543Y02E60/10Y02P70/50
Inventor 赵建东王瑾芳叶国华伯儒尔杨·罗格林纳
Owner BEIJING BOSTON POWER BATTERY
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