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Flexible packaging power lithium ion battery pack for electric automobile

A technology for lithium-ion battery packs and electric vehicles. It is applied in electric vehicles, secondary batteries, transportation and packaging, etc. It can solve the problems of affecting battery performance, inability to control temperature, and inability to operate battery packs, etc., so as to achieve no explosion hazard. , light weight, high mass specific energy and high specific power

Inactive Publication Date: 2010-08-04
JIANGSU SHUANGDENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although silica gel has a protective effect on the battery, after the silica gel solidifies, the maintenance of the battery pack cannot be performed. That is to say, if a single battery has a problem, it can only be replaced as a whole, which increases the cost of use.
At the same time, the battery pack cannot be temperature-regulated under high and low temperature working environment, which affects the performance of the battery

Method used

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  • Flexible packaging power lithium ion battery pack for electric automobile
  • Flexible packaging power lithium ion battery pack for electric automobile
  • Flexible packaging power lithium ion battery pack for electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Referring to the accompanying drawings, the inner cavity of the battery box is divided into the following independent functional areas by several partitions 1 and movable partitions 41 welded vertically on the bottom of the box: eight battery module areas 14, hot air collection area 12, battery management circuit area 11. There are air ducts 13 between adjacent partitions, and ventilation grids 16, air outlets 22 with bellows 6, hanging angles 17, hanging rings 10, feet 8, and horizontal bars are installed on the partitions and the side walls of the battery box Hole 15, output hole 18, charging hole 19, signal wire hole 20, circuit breaker hole 21.

[0025] Soft-pack power lithium-ion battery cells 23 are pasted with sponge double-sided adhesive tape 24 on the outside, and then neatly placed in the battery module area of ​​the box in sequence, pressed on the horizontal bar 33, and pass through the end hole 34 of the horizontal bar and the horizontal wall of the separator...

Embodiment 2

[0030] The main structure and manufacturing process of the battery pack in Example 2 are the same as those in Example 1, and will not be described again. The difference is that the battery cell placed in the battery module area is pressed on the horizontal bar 33, and then the battery cover 31 is covered. The cover plate is a plexiglass plate with a thickness of 10 mm. There are lug grooves 27, signal line holes 28, threaded holes 29, handle holes 30 and non-through grooves 32 consistent with the shape of the metal connecting bar on the cover plate. During assembly, the metal connection bars 3, 4, 5 are put into the non-through groove, and then the corresponding additional metal connection bars 39, 40, 38 are put on, the battery lugs are clamped in the middle, and the screws 26 are used for fastening together. There are tab fixing holes 35 and signal line No. 36 on the additional metal connection strips, and the two connection strips are silver-plated copper plates with a thick...

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PUM

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Abstract

The invention discloses a flexible packaging power lithium ion battery pack for an electric automobile, comprising a battery box body, a battery cell, a heating and cooling device, a battery management circuit and a fixing and connecting piece. The inside of the battery box body is divided into a plurality of independent functional zones by a plurality of partition boards vertical to the box body; air ducts are arranged among the partition boards; the battery cell is fixed in the battery box body through a horizontal bar and a battery cover plate; monomers can be connected in series through a metal connecting strip; two lines of exhaust fans are arranged in the battery pack and hot blast air is exhausted out of the automobile through a corrugated tube; and a heating film is attached to the inner wall of the battery box body and the stable driving of the automobile can be ensured in a low-temperature environment. The battery pack has the advantages of light weight, high mass ratio energy and specific power, low series resistance, safety, reliability, detachability, easy maintenance and the like.

Description

technical field [0001] The invention relates to a vehicle power supply device, in particular to a soft package power lithium ion battery pack for an electric vehicle. Background technique [0002] As the world's oil resources are increasingly depleted, the power source of automobiles will have to gradually get rid of the shackles of oil resources and replace them with some new energy sources, which will promote a major technological revolution in the automobile industry. Vigorously developing lithium-ion electric vehicles and using electricity instead of oil is a major strategic measure to ensure my country's energy security. As the core component of electric vehicles, the power lithium-ion battery pack is in the development stage. [0003] At present, the main problems restricting the development of power lithium-ion batteries are the decrease in safety and the shortening of service life after the battery cells are grouped. The main reason for the above problems is that t...

Claims

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Application Information

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IPC IPC(8): H01M10/0525
CPCY02E60/12Y02E60/122Y02T10/7011Y02E60/10
Inventor 佘沛亮孙全王丽芳许谦陈冰花杨健
Owner JIANGSU SHUANGDENG GROUP
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