Unlock instant, AI-driven research and patent intelligence for your innovation.

A lithium battery with protective structure

A protection structure, lithium battery technology, applied in lithium batteries, structural parts, secondary batteries, etc., can solve the problems of lithium batteries easy to heat, fast heat, lithium battery safety problems, etc., to achieve good safety protection performance, stable and long-lasting power The effect of output, not easy to be damaged by bumps

Active Publication Date: 2022-06-21
宁波兆科新能源科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, affected by the chemical system of the battery itself, the existing battery system cannot fully meet the above requirements, while lithium-ion power batteries are relatively close to these requirements
However, the existing lithium batteries are gradually developing towards fast charging, and with the improvement of the capacity density of lithium batteries, lithium batteries are prone to heat during charging and discharging, and the heat is relatively fast, which has brought great challenges to the use of lithium batteries. safe question

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A lithium battery with protective structure
  • A lithium battery with protective structure
  • A lithium battery with protective structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like Figure 1-3 The shown lithium battery with protective structure includes an upper battery body 2 and a lower battery body 1. The lower surface of the upper battery body 2 and the upper surface of the lower battery body 1 are connected by a connecting device, and the connecting device can use a buckle , the upper battery body 2 and the lower battery body 1 are also provided with installation grooves 16 on the right sides, and the right sides of the upper battery body 2 and the lower battery body 1 are hinged through a hinge 17, and the hinge 17 is installed in the installation groove 16. .

[0030] The upper battery body 2 is composed of an upper protective shell 21 and a first lithium battery 22, the upper protective shell 21 is installed outside the first lithium battery 22, and the lower battery body 1 is composed of a lower protective shell 11 and a second lithium battery 12. The shell 11 is mounted on the outside of the second lithium battery 12. The lower sur...

Embodiment 2

[0033] As a further preferred embodiment, as image 3 , the heat dissipation device includes a thermally conductive metal sheet 5 and a phase change material 6, the phase change material 6 is sealed in a rubber bag, and the rubber bag has elasticity to prevent the phase change material 6 from leaking when the phase change material 6 melts and expands, and the phase change material 6 It is formed by mixing phase change wax, water and expanded graphite, wherein the content of water is 3% of the total mass of phase change material 6, the content of phase change wax is 84% ​​of the total mass of phase change material 6, and the rest is expanded graphite. The thermal conductive metal sheet 5 is installed in the through holes 10 on the lower surface of the upper protective shell 21 and the upper surface of the lower protective shell 11 , and the phase change material 6 is installed in the through holes 10 on the thermal conductive metal sheet 5 in the lower protective shell 11 . , a...

Embodiment 3

[0035]As a further preferred embodiment, as Figure 4-6 , the connecting device includes a first spring 8, a hook 51 and a hanging block 9, the hanging block 9 and the first spring 8 are installed on the left end of the thermally conductive metal sheet 5 in the upper protective shell 21, and the two ends of the hanging block 9 are fixedly installed with The left baffle 94 and the right baffle 93, and the top edge of the through hole 10 at the hanging block 9 is also fixedly installed with a blocking bar 52, and the hanging block 9, the left baffle 94 and the right baffle 93 are movably installed under the blocking bar 52. The first spring 8 is installed in the through hole 10 on the left side of the left baffle plate 94, the right baffle plate 93 is in contact with the phase change material 6 in the through hole 10 on the right side, and the baffle bar 52 avoids the first spring 8 , the hanging block 9 , the left baffle 94 and the right baffle 93 are disengaged from the interi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a lithium battery with a protective structure, which comprises an upper battery body and a lower battery body, the right sides of the upper battery body and the lower battery body are hinged by a hinge device, and the lower surface of the upper battery body and the lower The upper surface of the battery body is connected by a connecting device, the upper battery body is composed of an upper protective case and a first lithium battery, the upper protective case is installed on the outside of the first lithium battery, and the lower battery The body is composed of a lower protective case and a second lithium battery, the lower protective case is installed outside the second lithium battery, the lower surface of the upper protective case of the upper battery body and the upper surface of the lower protective case of the lower battery body There are also several through holes corresponding to each other, and heat dissipation devices are installed in the through holes. The present invention overcomes the deficiencies of the prior art. The lithium battery is safe to use and can effectively avoid damage caused by serious heat generation during battery use. Risk of battery damage and explosion.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a lithium battery with a protective structure. Background technique [0002] In recent years, with the development of some unmanned electronic equipment (such as unmanned underwater vehicle, unmanned aerial vehicle), electric tools, electric vehicles, etc., its power core-battery is receiving more and more attention. Lithium-ion batteries are favored for their high specific energy, long cycle life, small self-discharge, no memory effect, and green environmental protection, and are one of the hotspots in power battery research. [0003] The ideal battery as a power battery should have the following characteristics: (1) high energy density; (2) high specific power, capable of continuous high current discharge; (3) wide operating temperature range (-20℃-+50℃), special application It needs to be able to work at (-40℃-+60℃) under conditions; (4) fast charge and discharge; (...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/204H01M50/244H01M10/052H01M10/613H01M10/653H01M10/659
CPCH01M10/052H01M10/613H01M10/653H01M10/659Y02E60/10
Inventor 王诒永王娜
Owner 宁波兆科新能源科技有限公司