CN2909545Y

CN2909545Y - Secondary battery

Info

Publication number: CN2909545Y
Application number: CNU2006200037454U
Authority: CN
Inventors: 何策衡; 陈风
Original assignee: JIAJIE-HENGXIN ENERGY TECHNOLOGY Co Ltd BEIJING
Current assignee: JIAJIE-HENGXIN ENERGY TECHNOLOGY Co Ltd BEIJING
Priority date: 2006-02-28
Filing date: 2006-02-28
Publication date: 2007-06-06
Anticipated expiration: 2016-02-28

Abstract

The utility model is a rechargeable battery, comprising electrolyte, positive plate, negative plate, diaphragm, positive pin, negative pin, frame and the outlet terminal of the positive and negative. The outlet terminal is a metal sheet, and a diaphragm is provided between the positive plate and the negative plate. The positive and negative plate and diaphragm could absorb the electrolyte. Polarity pins are connected with the plates, the middle of the frame is blank, and the whole part constituted by the positive plate, positive pin, negative plate, negative pin and the diaphragm is arranged on the blank part. The positive and negative outlet terminals are covered on the outside surface of the frame and connected with the positive and negative pin inside the frame. The connection between the positive and negative is tight coupling, forming a closed whole part. The simple structure and large heat sinking area, largely improving the charging and discharging efficiency of the positive and negative plate, avoiding the low charging and discharging efficiency and unconformity caused by the overlap of the plates, suitable for charging and discharging of the large current and heat sinking, and the series-parallel connection combination could be performed to increase the capacity and voltage of the assembled battery.

Description

Secondary cell

Technical field

The utility model relates to a kind of secondary cell, particularly relates to all rectangles or square secondary cell.

Background technology

Existing rectangle or rectangular secondary cell, for example nickel metal hydride battery generally is made up of the barrier film between multilayer positive plate, multilayer anode ear, multilayer negative plate, multilayer negative electrode lug and the positive/negative plate, adopts laminated construction to insert shell, and injects electrolyte.Described positive/negative plate comprises the both positive and negative polarity active material respectively, and a carrier that is used to carry described both positive and negative polarity active material and plays the afflux effect, and described active material is coated in two sides or the side or the inside of described carrier; A rectangle or a square shell that is used to seal foregoing.Because what adopt is laminated construction, its heat dispersion is poor, in charge and discharge process, and the pole piece temperature difference of ectonexine, thus do not cause efficiency for charge-discharge high and efficiency for charge-discharge is inhomogeneous, be not suitable for high current charge-discharge, the composition battery pack also is difficult for superposeing.

The utility model content

At above-mentioned defective, the purpose of this utility model is to provide a kind of secondary cell, this battery is rectangular or square, outside exit uses with regard to the both positive and negative polarity that can be used as battery, and can carry out weld metal sheet or screw or nut thereon and do tie point, can also carry out any connection in series-parallel stack combinations to the secondary cell of monomer, form a battery pack, to strengthen electric current or to increase voltage.

The technical solution adopted in the utility model is: a kind of secondary cell comprises electrolyte, positive plate, negative plate, barrier film, anode ear, negative electrode lug, frame and both positive and negative polarity exit, this exit is a sheet metal, described positive plate and described negative plate are at least one deck, it mainly is one deck or two-layer, and be provided with described barrier film between the two, described anode ear is connected with described positive plate, described negative electrode lug is connected with described negative plate, the middle hollow out of described frame, described positive plate, described anode ear, described negative plate, the integral body that described negative electrode lug and described barrier film form is arranged on the hollow out position in the middle of the described frame, described both positive and negative polarity exit covers respectively on two opposed outer surface of described frame, and respectively with the described anode ear of described frame inside, described negative electrode lug links to each other, be tightly connected between described exit and the described frame, to form a sealed whole body.

Two ends at described positive plate and described negative plate can be provided with described anode ear and described negative electrode lug respectively separately, or only be provided with at one end, promptly described anode ear is set, described negative electrode lug is set in the both ends or one end of described negative plate in the both ends or one end of described positive plate.

Described positive plate and described anode ear, described negative plate and described negative electrode lug can be to be made into integration, and also can be split type, by being welded together.

In addition, anode ear and negative electrode lug between described anodal exit and described positive plate, described negative pole exit and the described negative plate can be arranged to sheet, and described pole piece, lug are as the passage of internal current.

Described frame is made by insulating material, is tightly connected by bonding agent and described both positive and negative polarity exit, or on relative two faces of insulating material metal material is set, so that welded seal.For example adopt the form of circuit printing plate to be connected and sealed with the form of welding by the metal material that is provided with on relative two faces.Described both positive and negative polarity exit can also be made by the nickel plating sheet metal, and the both positive and negative polarity that can be used as battery uses.

Can also carry out the connection in series-parallel stack to the secondary cell of several monomers, form a battery pack.

The beneficial effects of the utility model are the both positive and negative polarity exits by being provided with, because one deck positive plate and one deck negative plate are only arranged, and radiating surface is big, makes that its heat dispersion improves, efficiency for charge-discharge improves and the efficiency for charge-discharge unanimity of each several part, is more suitable in high current charge-discharge.Can also carry out any connection in series-parallel stack combinations to the secondary cell of several monomers, be assembled into needed power supply, be applicable to electric bicycle power supply, motorcycle power supply, automobile power source, communication power supply, emergency power supply, startup power supply, stand-by power supply etc.

Description of drawings

Figure 1A is the vertical view of the utility model secondary cell first embodiment, and Figure 1B is its side sectional view.

Fig. 2 A is the vertical view of the utility model secondary cell second embodiment, and Fig. 2 B is its side sectional view.

Fig. 3 A is the vertical view of the utility model secondary cell the 3rd embodiment, and Fig. 3 B is its side sectional view.

Fig. 4 A is the vertical view of the utility model the 4th embodiment secondary battery, and Fig. 4 B is its side sectional view.

Fig. 5 A is the vertical view of the utility model the 5th embodiment secondary battery, and Fig. 5 B is its side sectional view.

Symbol description

1: positive plate; 2: negative plate;

3: barrier film; 4,9: anode ear;

5,10: negative electrode lug; 6: frame;

7,8: exit; 11,12: nut;

13: capsulation material; 14: screw;

15: pressing plate

Embodiment

First embodiment

Embodiment of the present utility model provides a kind of secondary cell, comprise electrolyte (not shown), positive plate 1, negative plate 2, barrier film 3, anode ear 4, anode ear 9, negative electrode lug 5, negative electrode lug 10, frame 6, exit 7 and exit 8, shown in Figure 1A and Figure 1B.Accompany barrier film 3 between a slice positive plate 1 and a slice negative plate 2, positive plate 1, negative plate 2 and barrier film 3 all are absorbed with electrolyte.Be respectively arranged with anode ear 4 and anode ear 9 at the two ends of positive plate 1, be respectively arranged with negative electrode lug 5 and negative electrode lug 10 at the two ends of negative plate 2, anode ear 4 and anode ear 9 are that one is cast with positive plate 1, and negative electrode lug 5 and negative electrode lug 10 also are made into integration with negative plate 2.

Frame 6 is made by insulating material, and the middle hollow out of frame 6 is rectangle, and the integral installation that positive plate 1, anode ear 4, anode ear 9, negative plate 2, negative electrode lug 5, negative electrode lug 10 and barrier film 3 are formed is on the hollow out position in the middle of the frame 6.Exit is made by the nickel metal, and the both positive and negative polarity that can be used as battery uses.Exit 7 covers on the upper surface of frame 6, and anode ear 4 and anode ear 9 weld with exit 7 respectively; Exit 8 covers on the lower surface of frame 6, negative electrode lug 5 and negative electrode lug 10 weld with exit 8 respectively, be tightly connected by bonding agent between exit 7, exit 8 and the frame 6, to form a sealed whole body, and each outwards has an extension to exit 7 in relative both sides with exit 8, and it slightly is longer than frame 6.

Second embodiment

Structure is identical substantially with first embodiment, and difference is, is welded with special nut 11 and nut 12 on the outer surface of exit 7 and exit 8 respectively, to make things convenient for the output of battery plus-negative plate guide current, shown in Fig. 2 A and Fig. 2 B.

The 3rd embodiment

The secondary cell that embodiment of the present utility model provides comprises electrolyte (not shown), positive plate 1, negative plate 2, barrier film 3, anode ear 4, negative electrode lug 5, frame 6, exit 7 and exit 8, shown in Fig. 3 A and Fig. 3 B.Accompany barrier film 3 between positive plate 1 and the negative plate 2, positive plate 1, negative plate 2 and barrier film 3 all are absorbed with electrolyte, accompany the anode ear 4 of sheet between positive plate 1 and exit 7, this anode ear 4 is in the direction bending of one end to positive plate 1, and welds together with positive plate 1; Accompany the negative electrode lug 5 of sheet between negative plate 2 and exit 8, this negative electrode lug 5 is in the direction bending of one end to negative plate 2, and welds together with negative plate 2.

Frame 6 is made by insulating material, and the middle hollow out of frame 6 is rectangle, and the integral installation that positive plate, anode ear, negative plate, negative electrode lug and barrier film are formed is on the hollow out position in the middle of the frame 6.Exit 7 covers on the upper surface of frame 6, and is connected with the last end face of frame 6 internal positive ears 4; Exit 8 covers on the lower surface of frame 6, and be connected with the bottom surface of frame 6 inner negative electrode lugs 5, be tightly connected by bonding agent between exit 7, exit 8 and the frame 6, to form a sealed whole body, exit is made by the nickel metal, and the both positive and negative polarity that can be used as battery uses.

The 4th embodiment

By pass frame 6 and up and down 10 screws 14 of two pressing plates 15 secondary cell of 6 monomers is formed a battery pack, screw 14 plays a fixing effect, and on monomer secondary cell topmost, draw an anodal exit 7, on lowermost monomer secondary cell, draw a negative pole exit 8, the both positive and negative polarity of battery pack uses as a whole, shown in Fig. 4 A and Fig. 4 B.

The 5th embodiment

By pass frame 6 and up and down 10 screws 14 of two pressing plates 15 secondary cell of 6 monomers is formed a battery pack, and on the outer surface of the negative pole exit of the anodal exit on the monomer secondary cell of the whole the superiors, orlop monomer secondary cell, be welded with special nut 11 and nut 12 respectively, to make things convenient for the output of battery pack both positive and negative polarity guide current, shown in Fig. 5 A and Fig. 5 B.

Though with specific embodiment the present invention is described, have the knack of this skill person will know clearly can claims define below not breaking away from spirit of the present invention and scope in implement variations and modifications.No matter but it does any variation on shape or structure, the modification that every employing present technique is made all drops within the protection range of the present utility model.

Claims

1. secondary cell, it is characterized in that, comprise electrolyte, positive plate, negative plate, barrier film, anode ear, negative electrode lug, frame and both positive and negative polarity exit, this exit is a sheet metal, described positive plate and described negative plate are at least one deck, and be provided with described barrier film between the two, described anode ear is connected with described positive plate, described negative electrode lug is connected with described negative plate, the middle hollow out of described frame, described positive plate, described anode ear, described negative plate, the integral body that described negative electrode lug and described barrier film form is arranged on the hollow out position in the middle of the described frame, described both positive and negative polarity exit covers respectively on two opposed outer surface of described frame, and respectively with the described anode ear of described frame inside, described negative electrode lug links to each other, be tightly connected between described exit and the described frame, to form a sealed whole body.

2. secondary cell as claimed in claim 1 is characterized in that, is provided with described anode ear and described negative electrode lug respectively separately at the two ends of described positive plate and described negative plate, and is connected with the both positive and negative polarity exit respectively.

3. secondary cell as claimed in claim 1 is characterized in that, is provided with described anode ear and described negative electrode lug respectively separately at an end of described positive plate and described negative plate, and is connected with the both positive and negative polarity exit respectively.

4. secondary cell as claimed in claim 3 is characterized in that, described anode ear and described negative electrode lug are arranged on the same side of described frame, or lays respectively at the both sides of described frame.

5. as any one described secondary cell in the claim 1～4, it is characterized in that described positive plate and described anode ear, described negative plate and described negative electrode lug are made into integration or are formed by connecting.

6. secondary cell as claimed in claim 1, it is characterized in that, the anode ear and the negative electrode lug of sheet are set between described anodal exit and described positive plate, described negative pole exit and the described negative plate, described anode ear is connected with an end of described positive plate, and described negative electrode lug is connected with an end of described negative plate.

7. as any one described secondary cell in the claim 2～6, it is characterized in that, between described positive plate and the described negative plate described barrier film is set.

8. secondary cell as claimed in claim 1 is characterized in that described frame is made by insulating material, or on relative two faces of insulating material metal material is set.

9. secondary cell as claimed in claim 1 is characterized in that, the secondary cell of at least two monomers is superposeed, and forms a battery pack.