CN205943777U

CN205943777U - Soft packaging super capacitor

Info

Publication number: CN205943777U
Application number: CN201620748543.6U
Authority: CN
Inventors: 康启平; 汪志华; 郑树会
Original assignee: Material And Industrial Technology Research Institute Beijing
Current assignee: MATERIAL AND INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE BEIJING
Priority date: 2016-07-15
Filing date: 2016-07-15
Publication date: 2017-02-08
Anticipated expiration: 2026-07-15

Abstract

The utility model relates to an electronic components field discloses a soft packaging super capacitor, and this soft packaging super capacitor includes: the plastic -aluminum membrane, and by the electrode diaphragm composite bed and the electrolyte of plastic -aluminum membrane parcel, wherein, electrode diaphragm composite bed is including first unfamiliar, the first electrode piece, second diaphragm, second electrode piece and the third diaphragm that stack gradually, and electrode diaphragm composite bed is set up as continuous Z style of calligraphy beta structure, and this soft packaging super capacitor still include two the utmost point ears, these two the utmost point ears connect respectively the first electrode piece with the second electrode piece. Through above -mentioned technical scheme, Z style of calligraphy folding electrode diaphragm composite bed can provide great capacitance with less volume in succession, has reduced the tie point quantity of utmost point ear with the electrode simultaneously, has simplified the production technology from this, has reduced the tie point fault rate, has improved the production qualification rate.

Description

Soft Roll ultracapacitor

Technical field

The utility model is related to electronic devices and components field, in particular it relates to a kind of Soft Roll ultracapacitor.

Background technology

Also known as electrochemical capacitor or double layer capacitor, it is a kind of between traditional capacitor and secondary to ultracapacitor Novel energy-storing element between battery, remains the big feature of traditional capacitor power density, has farad level even methods up to ten thousand The static capacity drawn, therefore it has higher energy density.Compare with traditional capacitor and secondary cell, super capacitor simultaneously Utensil has that small volume, charge/discharge rates are fast, has extended cycle life, discharge power height, operating temperature range width (- 40～85 DEG C), can Good and the advantages of cost is less expensive by property.Therefore, ultracapacitor is in the energy, automobile, medical treatment, health, electronics, number, military affairs There is quite varied application prospect in field.

Traditional at present prepares Soft Roll ultracapacitor mainly by the method for lamination, that is, according to prepared super capacitor Anode pole piece and cathode pole piece are first cut into some small pieces using mould, both positive and negative polarity lug are respectively welded at punching by the size of device On the positive and negative electrode pole piece cutting, more repeatedly gather into folds piecemeal for both positive and negative polarity pole piece.Make to produce super electricity in this way Container products need substantial amounts of Large-scale professional equipment, and technics comparing is complicated, and production efficiency is low.

For above-mentioned technical problem, in prior art, there is no good solution.

Utility model content

The purpose of this utility model is to provide a kind of Soft Roll ultracapacitor, and this Soft Roll supercapacitor structures is simple and electric Capacity is big.

To achieve these goals, the utility model provides a kind of Soft Roll ultracapacitor, this Soft Roll ultracapacitor bag Include：

Aluminum plastic film, and the electrode diaphragm composite bed that wrapped up by described aluminum plastic film and electrolyte；Wherein, described electrode diaphragm Composite bed includes the first barrier film, first electrode piece, the second barrier film, second electrode piece and the 3rd barrier film stacking gradually, and Described electrode diaphragm composite bed is arranged to continuous Z-shaped foldable structure；And this Soft Roll ultracapacitor also includes two poles Ear, this two lugs connect described first electrode piece and described second electrode piece respectively.

Further, described two lugs are located at the phase homonymy of described foldable structure.

Further, described electrode diaphragm composite bed is rectangle.

Further, the material of described first barrier film, described second barrier film and described 3rd barrier film is one below person： Polypropylene, cellulose.

Further, described aluminum plastic film is sandwich construction, and includes from outside to inside：Nylon layer, first adhesive phase, aluminium foil Layer, second adhesive phase and hot sealing layer.

Further, described two lugs are respectively by being welded to connect described first electrode piece and described second electrode piece.

Further, described two lugs pass through first electrode piece described in bonding connection and described second electrode piece respectively.

Further, described two lugs are connected by crimp described first electrode piece and described second electrode piece respectively.

Further, described two lugs pass from described aluminum plastic film.

By technique scheme, the electrode diaphragm composite bed that continuous Z-shaped folds can be provided relatively with less volume Big capacitance, decreases the tie point quantity of lug and electrode simultaneously, thereby simplify production technology, reduces tie point event Barrier rate, improves production qualification rate.

Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.

Brief description

Accompanying drawing is used to provide and further understands to of the present utility model, and constitutes a part for specification, and following Specific embodiment be used for together explaining the utility model, but do not constitute to restriction of the present utility model.In the accompanying drawings：

Fig. 1 is the Soft Roll supercapacitor structures schematic diagram that the utility model embodiment provides；

Fig. 2 is the electrode diaphragm lamination layer structure schematic diagram of the Soft Roll ultracapacitor originally receiving new embodiment offer； And

Fig. 3 is the Soft Roll supercapacitor structures schematic diagram that the utility model embodiment provides.

Description of reference numerals

1 first electrode piece 2 second electrode piece

3 first barrier film 4 second barrier film

5 the 3rd barrier film 6 first lug

7 second lug 8 aluminum plastic film

9 electrode diaphragm composite beds.

Specific embodiment

Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in detail.It should be appreciated that herein Described specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.

Fig. 1 is the Soft Roll supercapacitor structures schematic diagram that the utility model embodiment provides, and figure 1 illustrates Soft Roll The internal structure of ultracapacitor.Fig. 3 is the Soft Roll supercapacitor structures schematic diagram that the utility model embodiment provides, in figure The exterior frontal view of the Soft Roll ultracapacitor of citing is shown in 3.

As shown in figures 1 and 3, the Soft Roll ultracapacitor that the utility model embodiment provides can include：Aluminum plastic film 8, And the electrode diaphragm composite bed 9 that wrapped up by described aluminum plastic film 8 and electrolyte；Wherein, described electrode diaphragm composite bed 9 include according to First barrier film 3 of secondary stacking, first electrode piece 1, the second barrier film 4, second electrode piece 2 and the 3rd barrier film 5, and described electrode Barrier film composite bed 9 is arranged to continuous Z-shaped foldable structure；And this Soft Roll ultracapacitor also includes two lugs 6 and 7, This two lug 6 and 7 connects described first electrode piece 1 and described second electrode piece 2 respectively.

Fig. 2 shows the concrete structure of the electrode diaphragm composite bed 9 that the utility model embodiment provides.In embodiment In, the material of the first barrier film 3, the second barrier film 4 and the 3rd barrier film 5 can be one below person：Polypropylene, cellulose.First The thickness of barrier film 3, the second barrier film 4 and the 3rd barrier film 5 can be identical or different, and material can also be identical or different.First every Film 3, the second barrier film 4 and the 3rd barrier film 5 can be prepared as diaphragm paper.

In embodiments, as shown in figure 3, two lugs 6 and 7 may be located at the phase homonymy of foldable structure shown in Fig. 1. In interchangeable embodiment, two lugs 6 and 7 may be located at the not homonymy of foldable structure shown in Fig. 1, for example relative to Both sides or adjacent both sides.The set location of lug can be selected according to the use environment of Soft Roll ultracapacitor.

In embodiments, two lugs 6 and 7 can be respectively by being welded to connect described first electrode piece 1 and described Two electrode slices 2.In interchangeable embodiment, two lugs 6 and 7 can pass through bonding or crimping connection described first respectively Electrode slice 1 and described second electrode piece 2.

In embodiments, electrode diaphragm composite bed 9 can be rectangle.In interchangeable embodiment, electrode diaphragm is multiple The shape closing layer 9 can be configured according to the shape requirement after the encapsulation of Soft Roll ultracapacitor.For example, when Soft Roll super capacitor When profile after device encapsulation is subcircular, electrode diaphragm composite bed 9 can be shaped to the shape that multiple subcirculars are connected Shape.

In embodiments, further, described aluminum plastic film is sandwich construction to aluminum plastic film 8, and can include from outside to inside： Nylon layer, first adhesive phase, aluminium foil layer, second adhesive phase and hot sealing layer.Two lugs 6 and 7 can in embodiments To pass from described aluminum plastic film 8 respectively.Two lugs 6 and 7 can be metal or the non-metallic material with excellent conductive performance Material, such as aluminium or copper.

By technique scheme, Soft Roll ultracapacitor arranges the electrode diaphragm composite bed that continuous Z-shaped folds 9, the Soft Roll ultracapacitor providing solve the micro-short circuit that stacked ultracapacitor causes because the lug of welding is excessive or Open circuit, improves production qualification rate, and this capacitor arrangement capacity is big, safe, simplifies production technology, reduces people Work capital equipment expense, and then substantially reduce product cost.

Describe preferred embodiment of the present utility model above in association with accompanying drawing in detail, but, the utility model does not limit Detail in above-mentioned embodiment, in range of the technology design of the present utility model, can be to skill of the present utility model Art scheme carries out multiple simple variant, and these simple variant belong to protection domain of the present utility model.For example, it is possible to by barrier film Change into diaphragm paper.

It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each Plant possible combination no longer separately to illustrate.

Additionally, can also be combined, as long as it is not disobeyed between various different embodiment of the present utility model Carry on the back thought of the present utility model, it equally should be considered as content disclosed in the utility model.

Claims

1. a kind of Soft Roll ultracapacitor is it is characterised in that this Soft Roll ultracapacitor includes：

Aluminum plastic film, and the electrode diaphragm composite bed that wrapped up by described aluminum plastic film and electrolyte；

Wherein, described electrode diaphragm composite bed includes stacking gradually the first barrier film, first electrode piece, the second barrier film, the second electricity Pole piece and the 3rd barrier film, and described electrode diaphragm composite bed is arranged to continuous Z-shaped foldable structure；And

This Soft Roll ultracapacitor also includes two lugs, and this two lugs connect described first electrode piece and described second respectively Electrode slice.

2. Soft Roll ultracapacitor according to claim 1 is it is characterised in that described two lug is located at described folding knot The phase homonymy of structure.

3. Soft Roll ultracapacitor according to claim 1 is it is characterised in that described electrode diaphragm composite bed is rectangle.

4. Soft Roll ultracapacitor according to claim 1 is it is characterised in that described first barrier film, described second barrier film And the material of described 3rd barrier film is one below person：Polypropylene, cellulose.

5. Soft Roll ultracapacitor according to claim 1 it is characterised in that described aluminum plastic film be sandwich construction, and by Arrive outward interior inclusion：Nylon layer, first adhesive phase, aluminium foil layer, second adhesive phase and hot sealing layer.

6. Soft Roll ultracapacitor according to claim 1 is it is characterised in that described two lug passes through welding even respectively Connect described first electrode piece and described second electrode piece.

7. Soft Roll ultracapacitor according to claim 1 is it is characterised in that described two lug is connected by bonding respectively Connect described first electrode piece and described second electrode piece.

8. Soft Roll ultracapacitor according to claim 1 is it is characterised in that described two lug passes through crimping even respectively Connect described first electrode piece and described second electrode piece.

9. Soft Roll ultracapacitor according to claim 1 is it is characterised in that described two lug is from described aluminum plastic film Pass.