CN202275719U

CN202275719U - High-power two-end lead-out type super capacitor and battery

Info

Publication number: CN202275719U
Application number: CN2011202392377U
Authority: CN
Inventors: 李剑锋; 卢海; 李劼; 赖延清; 张治安
Original assignee: CHANGSHA YEXIANG ENERGY TECHNOLOGY CO LTD
Current assignee: HUNAN CMAX NEW ENERGY TECHNOLOGY Co Ltd
Priority date: 2011-07-08
Filing date: 2011-07-08
Publication date: 2012-06-13
Anticipated expiration: 2021-07-08

Abstract

The utility model provides a formula ultracapacitor system and battery are drawn forth at high power both ends, includes the casing, the core package, positive, negative sheetmetal, apron, core package one end is anodal, and the other end is the negative pole, and after positive, negative sheetmetal respectively with positive, negative electrical connection, again respectively with apron and casing bottom electricity connection. The improvement is that a plurality of guide columns are arranged on the positive and negative metal sheets; the cover plate and the bottom of the shell are provided with a plurality of small holes; after the leading post passes through the small hole, the contact interface of the leading post and the small hole is welded and sealed. The utility model relates to a rationally, the structure is unique, and positive sheetmetal all realizes well being connected through the fusion welding mode with apron, burden sheetmetal and casing bottom, has not only reduced the contact internal resistance, has played the reposition of redundant personnel effect moreover, has consequently improved the heavy current discharge capacity and the safety guarantee coefficient of ultracapacitor system or battery, is fit for using in the high power occasion.

Description

High-power two-end lead-out type super capacitor and battery

Technical Field

The utility model relates to a ultracapacitor system and battery especially relate to a formula ultracapacitor system and battery are drawn forth at high power both ends belongs to the electronic components field.

Background

Since the market, the super capacitor has the obvious advantages of high power density, long cycle life, good temperature characteristic, environmental protection and the like, is widely concerned by all countries in the world and becomes a new industrial bright spot in the field of chemical power supplies. The method has great application value and market potential in the fields of traffic, electric power, communication, national defense, consumer electronics and the like. In the united states journal of exploration, 2007, month 1, the super capacitor is listed as one of seven scientific and technological discoveries in the world in 2006, and the super capacitor is considered to be a revolutionary development in the field of energy storage.

Batteries are mainly classified into primary batteries, secondary batteries, and the like. The battery industry is an important component of the new energy field and has become a new focus of global economic development. The development of new electric appliances and the requirement of environmental protection are two major factors driving the development of the battery industry. After the output of various small-sized civil batteries exceeds that of the United states for the first time since 1982, china becomes a large battery production country, and is still one of important large battery production countries in the world to date. Among them, the lithium ion battery has the characteristics of high working voltage, large energy density, long cycle life, safety, environmental protection, no memory effect and the like, is considered to be the secondary battery system with the best comprehensive performance and the most practical significance at present, and has been developed in the aspects of technology, production, market and the like in recent ten years.

The positive electrode and the negative electrode of the traditional super capacitor or battery are respectively and directly connected with the cover plate and the shell through mechanical riveting or ultrasonic welding, or the positive electrode and the negative electrode are firstly respectively connected with the positive metal sheet and the negative metal sheet, and the positive metal sheet and the negative metal sheet are respectively connected with the cover plate and the shell through a physical contact mode. The structure and the connection mode cause large contact internal resistance, influence the exertion of high-rate performance of the device, reduce the working output power, and cause serious heating phenomenon of the device during heavy current discharge and poor safety and reliability.

Disclosure of Invention

The utility model aims at overcoming current ultracapacitor system or the structural defect of battery, disclose an internal resistance littleer, heavy current discharge capacity is strong, and safe and reliable's high power both ends draw-off type ultracapacitor system and battery.

The utility model discloses a realize like this: the utility model provides a formula ultracapacitor system and battery are drawn forth at high power both ends, includes the casing, the core package, just, the burden sheetmetal, the apron, core package one end is anodal, and the other end is the negative pole, just, the burden sheetmetal respectively with just, negative pole electricity connection, its characterized in that: and the positive metal sheet and the negative metal sheet are respectively provided with a plurality of leading columns which are respectively electrically connected with the cover plate and the bottom of the shell.

The utility model discloses in, apron and casing bottom all be equipped with respectively with set up in draw the aperture that the post corresponds on positive, the burden sheetmetal.

In the utility model, after the leading column passes through the small hole, fusion welding sealing is carried out on the contact interface of the leading column and the small hole; the fusion welding is selected from one of laser welding, acetylene welding, arc welding or resistance welding.

The utility model discloses in, apron and casing bottom inboard are equipped with boss or recess, just, burden sheetmetal be equipped with the boss or the recess assorted contact surface that apron and casing bottom inboard set up.

The utility model discloses in, apron below is equipped with acid and alkali-resistance, heat-resisting O type rubber circle.

The utility model discloses in, apron, positive sheetmetal are kept apart with the casing through acid and alkali-resistance, the heat-resisting insulating cover of edge parcel.

The utility model discloses in, the casing adopts the roller slot beam waist, squat to press the mode of borduring sealed with the apron.

The utility model provides a battery relates to all once and secondary battery, including lithium ion battery, nickel-hydrogen battery, nickel-cadmium battery, lead-acid batteries, lithium sulphur battery, zinc-manganese battery, lithium-manganese battery, zinc-silver battery, zinc-air battery, zinc-mercury battery etc..

The utility model discloses owing to adopt above technical scheme, positive sheetmetal and apron, burden sheetmetal all realize well being connected through the fusion welding mode with the casing bottom, this contact internal resistance that has not only reduced ultracapacitor system or battery, played the reposition of redundant personnel effect moreover, consequently improved the multiplying power performance of device, output when having improved the use has reduced the degree of generating heat under the heavy current discharge condition simultaneously, has improved fail safe nature, makes ultracapacitor system or battery be fit for more and use under the high power occasion.

Drawings

Fig. 1 is a schematic diagram of a representative structure of a super capacitor and a battery according to the present invention.

In the figure: 1, positive pole column; 2, covering a plate; 3, insulating sleeve; 4 positive metal sheets; 5, a positive electrode; 6, core cladding; 7, a shell; 8, a negative electrode; 9 negative metal sheets; 10 negative pole column; 11 liquid injection hole; 12, wrapping; 13 leading the column from the positive pole; 14 rubber rings; 15 beam waist roller groove; 16 cover plate bosses; 17 positive sheet metal grooves; 18 negative metal sheet grooves; 19 shell bottom bosses; 20 negative pole lead post.

Detailed Description

Referring to the drawings, a jelly roll 6 is first inserted into the case 7 of an ultracapacitor or battery. After the negative metal sheet 9 is connected with the negative electrode 8, the leading post 20 is penetrated by aligning with the small hole at the bottom of the shell and is compressed to ensure that the groove 18 is tightly contacted with the boss 19, and the interface of the small hole and the leading post 20 is welded and sealed by laser welding. After the positive metal sheet 4 (the edge of which is wrapped with the insulating sleeve 3 to prevent the short circuit of the positive electrode and the negative electrode) is connected with the positive electrode 5, the roller groove beam waist 15 is formed on the upper edge of the positive metal sheet 4. In order to buffer the downward extrusion force during the subsequent edge covering squat pressing, a layer of O-shaped rubber ring 14 is arranged above the roller groove girdling. The leading post 13 on the positive metal sheet is aligned with the small hole on the cover plate 2 (the edge is wrapped by the insulating sleeve 3) to penetrate, the positive metal sheet is compressed to ensure that the groove 17 of the positive metal sheet is in close contact with the boss 16, and fusion welding sealing is carried out on the interface of the small hole of the cover plate and the leading post 13 by laser welding. The capacitor or the battery is squat and pressed through a cylindrical sealing machine, and the edge is covered 12 (the width of the edge is not more than that of the cover plate insulating sleeve) for sealing. After the liquid is injected, stainless steel balls are pressed into the liquid injection hole 11, and the liquid is dispensed and sealed.

Claims

1. The utility model provides a formula ultracapacitor system is drawn forth at high power both ends, includes the casing, the core package, just, the burden sheetmetal, the apron, core package one end is anodal, and the other end is the negative pole, just, the burden sheetmetal respectively with just, negative pole electricity connection, its characterized in that: and the positive metal sheet and the negative metal sheet are respectively provided with a plurality of leading columns which are respectively electrically connected with the cover plate and the bottom of the shell.

2. The high-power two-terminal-lead supercapacitor according to claim 1, wherein: the cover plate and the bottom of the shell are respectively provided with a small hole corresponding to the guide post arranged on the positive metal sheet and the negative metal sheet.

3. A high power two-terminal-lead supercapacitor according to claim 1 or 2, wherein: and after the leading column penetrates through the small hole, fusion welding and sealing are carried out on the contact interface of the leading column and the small hole.

4. The high-power two-terminal-lead supercapacitor according to claim 3, wherein: the fusion welding is selected from one of laser welding, acetylene welding, arc welding or resistance welding.

5. The high-power two-terminal-lead supercapacitor according to claim 3, wherein: the inner sides of the bottom of the cover plate and the shell are provided with bosses or grooves, and the positive metal sheet and the negative metal sheet are provided with contact surfaces matched with the bosses or grooves arranged on the inner sides of the bottom of the cover plate and the shell.

6. The high-power two-terminal-lead supercapacitor according to claim 3, wherein: and an acid-base-resistant and heat-resistant O-shaped rubber ring is arranged below the cover plate.

7. The high-power two-terminal-lead supercapacitor according to claim 3, wherein: the cover plate and the positive metal sheet are isolated from the shell through the acid-base-resistant heat-resistant insulating sleeve wrapped at the edge.

8. The high-power two-terminal-lead supercapacitor according to claim 3, wherein: the shell and the cover plate are sealed in a roller groove waist binding and squat edge covering mode.

9. The utility model provides a formula battery is drawn forth at high power both ends, includes the casing, the core package, just, the burden sheetmetal, the apron, core package one end is anodal, and the other end is the negative pole, just, the burden sheetmetal respectively with just, negative pole electricity is connected its characterized in that: and the positive metal sheet and the negative metal sheet are respectively provided with a plurality of leading columns which are respectively electrically connected with the cover plate and the bottom of the shell.

10. A high power two-terminal-lead battery according to claim 9, wherein: the cover plate and the bottom of the shell are respectively provided with small holes corresponding to the guide posts arranged on the positive and negative metal sheets.

11. A high power two-terminal-lead battery according to claim 9 or 10, wherein: and after the leading column penetrates through the small hole, fusion welding and sealing are carried out on the contact interface of the leading column and the small hole.

12. A high power two-terminal-lead battery according to claim 11, wherein: the fusion welding is selected from one of laser welding, acetylene welding, arc welding or resistance welding.

13. A high power two-terminal-lead battery according to claim 11, wherein: the inner sides of the bottom of the cover plate and the shell are provided with bosses or grooves, and the positive metal sheet and the negative metal sheet are provided with contact surfaces matched with the bosses or grooves arranged on the inner sides of the bottom of the cover plate and the shell.

14. A high power two-terminal-lead battery according to claim 11, wherein: and an acid-base-resistant and heat-resistant O-shaped rubber ring is arranged below the cover plate.

15. A high power two-terminal-lead battery according to claim 11, wherein: the cover plate and the positive metal sheet are isolated from the shell through the acid-base-resistant heat-resistant insulating sleeve wrapped at the edge.

16. A high power two-terminal-lead battery according to claim 11, wherein: the shell and the cover plate are sealed in a roller groove waist binding and squat edge covering mode.