CN206834074U

CN206834074U - A kind of ultracapacitor based on active carbon foams

Info

Publication number: CN206834074U
Application number: CN201720445434.1U
Authority: CN
Inventors: 邓梅根; 冯义红
Original assignee: Jiangxi University of Finance and Economics
Current assignee: Jiangxi University of Finance and Economics
Priority date: 2017-04-26
Filing date: 2017-04-26
Publication date: 2018-01-02
Anticipated expiration: 2027-04-26

Abstract

A kind of ultracapacitor based on active carbon foams, including anode cover, active carbon foams, barrier film, sealing ring and negative cover.The ultracapacitor is using active carbon foams as electrode active material, using aqueous electrolyte.Advantage is：With active carbon foams directly as electrode, electric double layer capacitance is provided using the flourishing hole of active carbon foams, while using the abundant nitrogen-containing functional group offer fake capacitance of activated carbon foam surface, be advantageous to obtain Fabrication of High Specific Capacitance.Active carbon foams are directly used as electrode, eliminate electrode production process cumbersome in the button-shaped ultracapacitor manufacture of tradition, and due to without the use of binding agent, greatly reducing electrode internal resistance.Using aqueous electrolyte active carbon foams can be allowed fully to discharge fake capacitance, and power characteristic is good, while eliminate using the drying shed or the severe production conditions of glove box needed for organic electrolyte.

Description

A kind of ultracapacitor based on active carbon foams

Technical field

It the utility model is related to a kind of ultracapacitor, more particularly to a kind of ultracapacitor based on active carbon foams.

Background technology

Ultracapacitor has the specific power and specific capacitance device more much bigger than battery high as a kind of novel energy-storing component Ratio energy much, service life length, while non-maintaining, the prospect that is widely used and wide market.

Current commercialized ultracapacitor utilizes the hole of activated carbon mainly using active carbon powder as electrode material The electric double layer of surface and electrolyte interface stores electric charge, and specific capacitance is limited.Meanwhile the mistake of electrode is prepared using active carbon powder Cheng Feichang is cumbersome, has had a strong impact on production efficiency；And the addition of binding agent causes electrode internal resistance universal in electrode production process It is higher.In addition, ultracapacitor production at present is main use organic electrolyte, poorly conductive, the power spy of capacitor is limited Property, and production process is related to the severe production conditions such as drying shed or glove box, limits the raising of production efficiency.

The content of the invention

The utility model is that electrode conductivuty is not in order to overcome traditional activated carbon powder ultracapacitor specific capacitance relatively low Height, the use of organic electrolyte cause production efficiency limited and a kind of ultracapacitor based on active carbon foams of proposition；This Utility model, directly as electrode, produces electric double layer capacitance and fake capacitance, and it is cumbersome to exempt powder electrode using active carbon foams Preparation process and eliminate binding agent use；Both activated carbon foam can be made fully to discharge fake capacitance using aqueous electrolyte, Be advantageous to improve power characteristic and production efficiency again.

Solution of the present utility model is：A kind of ultracapacitor based on active carbon foams, by active carbon foams, every Film, anode cover, negative cover and sealing ring composition, are separated using barrier film between two layers of active carbon foams, and capacitor is by anode cover, negative Polar cap and sealing ring are encapsulated.Of the present utility model be characterized in that directly uses active carbon foams as electrode, electric capacity Device uses aqueous electrolyte.

The utility model has the advantages of be：Active carbon foams can provide electric double layer capacitance and fake capacitance simultaneously, and Exempt the cumbersome preparation process of active carbon powder electrode and eliminate binding agent；Be advantageous to improve power characteristic using aqueous electrolyte And production efficiency.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

In accompanying drawing：1- anode covers;2- activity carbon foams;3- barrier films;4- sealing rings;5- negative covers.

Embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.Utility model is as shown in figure 1, one Ultracapacitor of the kind based on active carbon foams, including anode cover（1）, active carbon foams（2）, barrier film（3）, sealing ring（4）With Negative cover（5）.Active carbon foams（2）Directly as electrode, two panels activity carbon foams by aqueous electrolyte immersion are to pass through The barrier film of identical electrolyte immersion（3）Separate, using by anode cover (1), negative cover（5）And sealing ring（4）It is encapsulated as super electricity Container.

Claims

1. a kind of ultracapacitor based on active carbon foams, including anode cover（1）, active carbon foams（2）, barrier film（3）, it is close Seal（4）And negative cover（5）, active carbon foams use aqueous electrolyte directly as electrode, capacitor.