CN202454679U

CN202454679U - Lithium ion power battery

Info

Publication number: CN202454679U
Application number: CN2012200577142U
Authority: CN
Inventors: 周金平; 史仲华; 何治堂; 黄建春
Original assignee: JIANGSU LUOFENG POWER SUPPLY TECHNOLOGY Co Ltd
Current assignee: JIANGSU LUOFENG POWER SUPPLY TECHNOLOGY Co Ltd
Priority date: 2012-02-22
Filing date: 2012-02-22
Publication date: 2012-09-26
Anticipated expiration: 2022-02-22

Abstract

The utility model relates to a rechargeable battery, in particular to a lithium ion power battery. The lithium ion power battery is provided with fiber paper (101); the fiber paper (101) is arranged on the end surface of any one side of the upper side, the lower side, the left side or the right side of a laminated cell (16), or on the end surfaces of any two or three sides of the upper side, the lower side, the left side or the right side of the laminated cell (16), and or on the end surfaces of any four sides of the upper side, the lower side, the left side or the right side of the laminated cell (16); and an outer shell (1) is packaged outside the laminated cell (16) coated with the fiber paper (101). According to the lithium ion power battery, because the fiber paper is adopted to regulate the amount of electrolyte in the battery, the lithium ion power battery has long service life, is safe and reliable, the structural design is ingenious and simple, and the technical problem in the filed of lithium ion batteries which can not been solved so far is solved through the simple structure.

Description

Lithium-ion-power cell

Technical field

The utility model relates to a kind of rechargeable battery, particularly a kind of lithium-ion-power cell.The utility model belongs to the electrokinetic cell field, and being mainly used in the lithium-ion-power cell is various hybrid automobiles and pure electric automobile of power source etc.

Background technology

The primary structure of lithium-ion-power cell has two kinds at present, and first kind is that rolled electric core is encapsulated in the formula that the rolls lithium-ion-power cell in circle or the square shell.Second kind of lithium-ion-power cell structure is that the folded lamination electricity core that makes is encapsulated in the laminated type lithium-ion-power cell in circle or the square shell; The lamination electricity core of this laminated type lithium-ion-power cell includes negative plate, positive plate and insulation diaphragm; Negative plate and positive plate are successively alternately; Separate by insulation diaphragm between negative plate and the positive plate; The arranged outside of outermost layer negative plate has insulation diaphragm, and these negative plates, positive plate and insulation diaphragm are according to above-mentioned said ordering flat putting and stacking together layer by layer one by one.

A kind of lithium battery electrokinetic cell is disclosed like Chinese patent publication No. 101635370A; It comprises shell and lamination electricity core; Shell is encapsulated in the outside of lamination electricity core; Lamination electricity core includes negative plate, positive plate and insulation diaphragm, and the both sides of the bottom of negative lug joint are provided with the lug clamping plate, and negative plate is connected with the negative lug joint through the fixture that is through on the lug clamping plate; The both sides of positive pole ear joint bottom also are provided with the lug clamping plate, and positive plate is connected with the positive pole ear joint through the fixture that is through on the lug clamping plate.

The laminated type lithium-ion-power cell of above-mentioned existing lamination core strueture injects the cycle life that how much is having a strong impact on battery and the fail safe of electrolyte content.Electrolyte is very few, and lithium ion can not pass through smoothly, and battery can not be brought into play specified capacity, and seriously heating of battery, can not catch fire in case overcurrent or short circuit battery can be blasted.Electrolyte injects too much, and battery security is poor, in case overcurrent or short circuit battery both can explode but also can catch fire.Calculate by theoretical value such as LiFePO 4 5～6 (g/Ah), ageing 3～7 after battery injects electrolyte in the production operation process (my god) after electrolyte all soaks into electric core, serve as an amount of can not flow out electrolyte in the inversion of injecting electrolytic solution mouth.In practical operation and using, the injection rate of electrolyte requires suitable excessive certain proportion 2～3%, becomes liquid state or drop shape in the housing but can not stay; So could when prolonging lithium-ion-power cell use cycle life, ensure its fail safe.

The laminated type lithium-ion-power cell of existing lamination core strueture can't effectively address the above problem, and this problem is an insurmountable technical barrier always.

Summary of the invention

The purpose of the utility model is the deficiency to prior art, and a kind of amount through electrolyte in the regulating cell is provided, and makes battery long service life and safe and reliable lithium-ion-power cell.

For realizing above-mentioned technical purpose, the utility model adopts following technical scheme: a kind of lithium-ion-power cell comprises shell and lamination electricity core; Shell is encapsulated in the outside of lamination electricity core, and shell is provided with breach, and breach includes installing port and liquid injection port; Negative lug joint and positive pole ear joint are fixed on the shell, and negative lug joint top is negative terminals, and positive pole ear joint top is positive terminal; Negative terminals and positive terminal stretch out housing exterior through the installing port in the breach; Lamination electricity core includes negative plate, positive plate and insulation diaphragm, and negative plate and positive plate are separated by insulation diaphragm between negative plate and the positive plate successively alternately; The outside of outermost layer pole piece also is provided with insulation diaphragm; Right ends all with negative plate as the outermost layer pole piece, all negative plates all are connected with the negative lug joint through fixture, all positive plates all are connected with the positive pole ear joint through fixture.The utility model also is provided with fibrous paper; Fibrous paper is arranged on the end surfaces of any side in upside, downside, left side or the right side of lamination electricity core; Perhaps fibrous paper is arranged on the end surfaces of any both sides or three sides in upside, downside, left side and right side four sides of lamination electricity core; Perhaps fibrous paper is arranged on the end surfaces of four sides on upside, downside, left side and right side of lamination electricity core, and said shell is encapsulated in the lamination electricity core outside that is covered with fibrous paper.

Further, said fibrous paper is a wood pulp cellulose paper.

Further, the specification of said wood pulp cellulose paper is>=30g/m ², the said wood pulp cellulose paper that overlays on the lamination electricity core outside is 2～3 layers.

Further, film and a slice Copper Foil that described negative plate is made by two graphite materials are formed, and Copper Foil is clamped between the film of two graphite materials making, as negative electrode lug, and on this negative electrode lug, have the hole that lets fixture pass on the Copper Foil.

Further, film and a slice aluminium foil that described positive plate is made by two LiFePO 4 materials are formed, and aluminium foil is clamped between the film of two LiFePO 4 materials making, as anode ear, and on this anode ear, have the hole that lets fixture pass on the aluminium foil.

Further, described insulation diaphragm is made up of the film of two PP material and the film of a slice PE material, and the film of PE material is clamped between the film of two PP material.

Further, the two ends up and down of said shell are installed with the battery case insulating case.

Further; Said shell includes casing and cover plate, and breach is opened on the cover board, and breach also includes venting; Post the safety anti-explosive film on the venting; The electronic mounting plate is housed below the cover plate, has down breach on the electronic mounting plate with on the corresponding position of breach, following breach includes location and installation mouth, fluid injection port and explosion-proof through hole.

After adopting technique scheme, the utlity model has following beneficial effect:

(1) the utility model is owing to be provided with fibrous paper; Fibrous paper is arranged on the end surfaces of any side in upside, downside, left side or the right side of lamination electricity core; Perhaps fibrous paper is arranged on the end surfaces of any both sides or three sides in upside, downside, left side and right side four sides of lamination electricity core, and perhaps fibrous paper is arranged on the end surfaces of four sides on upside, downside, left side and right side of lamination electricity core.This structure of the utility model makes fibrous paper contact with encapsulation electrolyte in the enclosure, will effectively adsorb a certain proportion of electrolyte, makes the injection rate of electrolyte require to meet suitably excessive 2～3% requirement.

(2) preferred wood pulp cellulose paper, siphon effect is good and can be close to lamination electricity core, and supplementary result is good when the electrolyte loss.

(3) further preferred 30g/m ²Wood pulp cellulose paper and adopt 2～3 layers, can effectively accurately control the suitable excessive injection rate of electrolyte, make the lithium-ion-power cell performance best.

Therefore; The utility model is through the amount of electrolyte in the fibrous paper regulating cell; Make the lithium-ion-power cell long service life of the utility model and safe and reliable; The utility model structural design is ingenious simple, solved the insurmountable always technical problem in lithium ion battery field with simple structure, and cost performance is very high.

Description of drawings

Fig. 1 is the main TV structure sketch map of the utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is A-A profile of Fig. 1;

Fig. 5 is B-B profile of Fig. 1;

Fig. 6 is for removing the utility model internal structure sketch map of part 1 shell, part 26 battery case insulating cases and part 4 electronic mounting plates etc.;

Fig. 7 is the exploded view of Fig. 6;

Fig. 8 is part 9 negative plate structural representations;

Fig. 9 is part 10 positive plate structural representations;

Figure 10 is part 7 insulation diaphragm structural representations;

Figure 11 is J-J cutaway view of Fig. 8;

Figure 12 is K-K cutaway view of Fig. 9;

Figure 13 is L-L profile of Figure 10;

Figure 14 is the structural representation of part 21 negative lug joints and part 22 positive pole ear joints;

Figure 15 is the structural representation of part 27 lug clamping plate;

Figure 16 is the structural representation of part 26 battery case insulating cases;

Figure 17 is part 1 shell top surface portion bulk-breaking 3 structure of cover plate sketch mapes;

Figure 18 is the structural representation of part 4 electronic mounting plates;

Figure 19 is the structural representation of part 1 shell lower face bulk-breaking 2 casings.

Among the figure: 1, shell, 2, casing, 3, cover plate, 4, the electronic mounting plate, 4-1, boss, 5, adhesive tape; 7, insulation diaphragm, the film of 7-1, PE material, the film of 7-2, PP material, 9-1, Copper Foil, 9-1-1, negative electrode lug, the film that 9-2, graphite material are made; The hole of opening on 9-3, the negative electrode lug, 10, positive plate, 10-1, aluminium foil, 10-1-1, anode ear, the film that 10-2, LiFePO 4 material are made; The hole of opening on 10-3, the anode ear, 16, lamination electricity core, 17, breach, 17-1, installing port, 17-2, liquid injection port; 17-3, venting, 8, following breach, 18-1, location and installation mouth, 18-2, fluid injection port, 18-3, explosion-proof through hole; 19, safety anti-explosive film, 20, fixture, 21, the negative lug joint, 21-1, negative terminals, the connecting hole on 21-2, the negative lug joint; 22, positive pole ear joint, 22-1, positive terminal, the connecting hole on 22-2, the positive pole ear joint, 23, rivet, 24, insulating washer; 25, hold-down nut, 26, the battery case insulating case, 27, the lug clamping plate, the through hole on 27-1, the lug clamping plate, 101, fibrous paper.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment, the utility model is done further explain.

Embodiment

Extremely shown in Figure 19 like Fig. 1; A kind of lithium-ion-power cell comprises shell 1, electronic mounting plate 4 and lamination electricity core 16, also is provided with fibrous paper 101; Also include the negative lug joint 21 of copper material making and the positive pole ear joint 22 of aluminium making, also include rectangular lug clamping plate 27.Shell 1 adopts stainless steel material to make, and heat radiation and anticorrosion effect are better like this, and shell 1 is encapsulated in electronic mounting plate 4 and lamination electricity core 16 outsides that are covered with fibrous paper 101.Said shell 1 includes casing 2 and cover plate 3, electronic mounting plate 4 is housed below the cover plate 3, and electronic mounting plate 4 is made by insulating material.Shell 1 is provided with breach 17, and breach 17 is opened on cover plate 3, and breach 17 includes two installing port 17-1 and a liquid injection port 17-2 and a venting 17-3, posts the safety anti-explosive film 19 that copper film is made on the venting 17-3.Have down breach 18 on the electronic mounting plate 4 with on the breach 17 corresponding positions, following breach 18 includes two location and installation mouth 18-1 and a fluid injection port 18-2 and an explosion-proof through hole 18-3.Liquid injection port 17-2 opens the side at cover plate 3; Venting 17-3 opens in cover plate 3 central authorities; Liquid injection port 17-2 opens in venting 17-3 both sides; Liquid injection port 17-2 is just in time corresponding with fluid injection port 18-2 position, behind the electrolyte of substituting the bad for the good in the shell 1, rivet 23 rivetings is gone in the liquid injection port 17-2 above the fluid injection port 18-2 to seal.All have boss 4-1 above two location and installation mouth 18-1, two installing port 17-1 of the breach 17 on the cover plate 3 are enclosed within boss 4-1 outside.Negative lug joint 21 tops are the sub-21-1 of negative terminals; Positive pole ear joint 22 tops are the sub-22-1 of positive terminal; All has external screw thread on sub-21-1 of negative terminals and the sub-22-1 of positive terminal; Negative lug joint 21 bottoms have the connecting hole 21-2 that connects negative electrode lug 9-1-1; Positive pole ear joint 22 bottoms have the connecting hole 22-2 that connects anode ear 10-1-1; Sub-21-1 of negative terminals and the sub-22-1 of positive terminal are outside through the installing port 17-1 that the location and installation mouth 18-1 on the electronic mounting plate 4 stretches out shell 1, on sub-21-1 of negative terminals and the sub-22-1 of positive terminal, put insulating washer 24 respectively, and screw on hold-down nut 25 and fix.Negative lug joint 21 is fixed on the cover plate 3 of shell 1 with positive pole ear joint 22.Lamination electricity core 16 includes negative plate 9, positive plate 10 and insulation diaphragm 7; Negative plate 9 and positive plate 10 are successively alternately; Separate by insulation diaphragm 7 between negative plate 9 and the positive plate 10; The outside of outermost layer pole piece also is provided with insulation diaphragm 7, right ends all with negative plate 9 as the outermost layer pole piece, promptly according to insulation diaphragm 7, negative plate 9, insulation diaphragm 7, positive plate 10, insulation diaphragm 7, negative plate 9, insulation diaphragm 7, positive plate 10, insulation diaphragm 7 ... Insulation diaphragm 7, negative plate 9, insulation diaphragm 7 are arranged; With insulation diaphragm 7, negative plate 9 and positive plate 10 press said sequence stacked layer by layer good after; Adhesive tape 5 is wrapped in the outside, and also available other fixture of adhesive tape 5 replaces, and will expose negative electrode lug 9-1-1 and the anode ear 10-1-1 above the positive plate 10 above the negative plate 9 during bag.The both sides of negative lug joint 21 bottoms are provided with lug clamping plate 27, have the through hole 27-1 that lets fixture 20 pass on the lug clamping plate 27, and negative plate 9 is clipped between the lug clamping plate 27; Positive plate 10 is clipped between the lug clamping plate 27; All through being through the fixture 20 and negative lug joint 21 Joints on the lug clamping plate 27, the both sides of positive pole ear joint 22 bottoms also are provided with lug clamping plate 27 to all negative plates 9, and all positive plates 10 are all through being through the fixture 20 and positive pole ear joint 22 Joints on the lug clamping plate 27; All negative plate 9 shapes are identical; All positive plate 10 shapes are identical, are convenient to processing and fabricating like this, save the pole piece cost of manufacture.Described fixture 20 is an anchor bolt nut, and certain described fixture 20 also can be other detachable fixed connecting piece.

Like Fig. 4 and shown in Figure 11; Film 9-2 and a slice Copper Foil 9-1 that described negative plate 9 is made by two graphite materials form; Copper Foil 9-1 is clamped between the film 9-2 of two graphite materials making; Copper Foil 9-1 upper end is as negative electrode lug 9-1-1, and on this negative electrode lug 9-1-1, has the hole 9-3 that lets fixture 20 pass.A plurality of negative electrode lug 9-1-1 stack and form the negative electrode lug crowd, and fixture 20 is fixed together lug clamping plate 27, negative electrode lug crowd and negative lug joint 21 through hole 9-3 and connecting hole 21-2 and through hole 27-1.Heat on the negative plate 9 and electric current are directly passed to negative lug joint 21 through negative electrode lug crowd, lug clamping plate 27 and fixture 20, and heat distributes through lug clamping plate 27 and negative lug joint 21 in time.

Like Fig. 5 and shown in Figure 12; Film 10-2 and a slice aluminium foil 10-1 that described positive plate 10 is made by two LiFePO 4 materials form; Aluminium foil 10-1 is clamped between the film 10-2 of two LiFePO 4 materials making; Aluminium foil 10-1 upper end is as anode ear 10-1-1, and on this anode ear 10-1-1, has the hole 10-3 that fixture 20 passes.A plurality of anode ear 10-1-1 stack and form the anode ear crowd, and fixture 20 is fixed together lug clamping plate 27, anode ear crowd and positive pole ear joint 22 through hole 10-3 and connecting hole 22-2 and through hole 27-1.Heat on the positive plate 10 and electric current are directly passed to positive pole ear joint 22 through anode ear crowd, lug clamping plate 27 and fixture 20, and heat distributes through lug clamping plate 27 and positive pole ear joint 22 in time.

Shown in figure 13, described insulation diaphragm 7 is made up of the film 7-2 of two PP material and the film 7-1 of a slice PE material, and the film 7-1 of PE material is clamped between the film 7-2 of two PP material.

Like Fig. 1, Fig. 2 and shown in Figure 16, the two ends up and down of shell 1 are installed with battery case insulating case 26, and battery case insulating case 26 is made by insulating material.Battery case insulating case 26 is detachable.

Electronic mounting plate 4 also has supporting role to shell 1 except that having insulating effect, make shell 1 more firm, and the antidetonation resistance to compression makes the negative lug joint 21 that is fixed on the cover plate 3 more firm with positive pole ear joint 22.

Suitably excessive for guaranteeing electrolyte, the scheme one that fibrous paper 101 is provided with is to be employed on the end surfaces of upside of lamination electricity core 16 to establish fibrous paper 101; The scheme two that fibrous paper 101 is provided with is to be employed on the end surfaces of downside of lamination electricity core 16 to establish fibrous paper 101; The scheme three that fibrous paper 101 is provided with is to be employed on the end surfaces in left side of lamination electricity core 16 to establish fibrous paper 101; The scheme four that fibrous paper 101 is provided with is to be employed on the end surfaces on right side of lamination electricity core 16 to establish fibrous paper 101.The end surfaces of said lamination electricity core 16 is meant four surfaces that the side belongs to up and down of the thickness direction of lamination electricity core 16.

The position of except that above-mentioned four schemes, on lamination electricity core 16, establishing fibrous paper 101 also can form other various embodiments according to the needs combination in any; Can be employed on the end surfaces of any both sides or three sides in upside, downside, left side and right side four sides of lamination electricity core 16 and establish fibrous paper 101, perhaps be employed on the end surfaces of four sides on upside, downside, left side and right side of lamination electricity core 16 and all establish fibrous paper 101.

For specifying the utility model,, be to be positioned at lamination electricity core 16 embodiment on the end surfaces of four sides up and down simultaneously in this fibrous paper of selecting for use 101 like Fig. 6 and shown in Figure 7.That is: to be positioned at the upside of lamination electricity core 16 simultaneously be that a side, downside are that b side, left side are that c side and right side are on the end surfaces of four sides of d side to fibrous paper 101.

When being covered with fibrous paper on the end surfaces of four sides up and down of lamination electricity core, fibrous paper will be adsorbed a certain proportion of electrolyte, and the electrolyte of the gasification of in charge and discharge cycles, being heated simultaneously also can be surrounded and absorption by fibrous paper.When the electrolyte in the lamination electricity core reduced, because the siphon principle of fibrous paper, the electrolyte in the fibrous paper can be penetrated in the lamination electricity core gradually, the life-span of improving lithium-ion-power cell.And suitably excessive electrolyte is because by fibrous paper absorption, and it can not stayed lamination electricity in-core and become liquid state or drop shape, and fail safe also is protected.

Fibrous paper 101 in the foregoing description can adopt cotton pulp fibrous paper, wood pulp cellulose paper or straw pulp fibrous paper.At this preferred wood pulp cellulose paper, its siphon effect is good and can be close to lamination electricity core, and supplementary result is good when the electrolyte loss.

When the specification of wood pulp cellulose paper is>=30g/m ², the said wood pulp cellulose paper that overlays on lamination electricity core 16 outsides adopts 2～3 layers.Can effectively accurately control the suitable excessive injection rate of electrolyte this moment, makes that the injection rate of electrolyte is strict to be controlled in suitable excessive 2～3% the requirement, at this moment lithium-ion-power cell performance the best.

The tea in bag filter paper 30g/m that fibrous paper among each embodiment of the utility model can select for use Hangzhou special smooth paper industry company to produce ²Can certainly select other wood pulp cellulose paper for use.

Be arranged in the various technical schemes on the end surfaces of any side in upside, downside, left side or the right side of lamination electricity core in the utility model fibrous paper 101, be arranged on the end surfaces of downside of lamination electricity core effect with fibrous paper 101 better; Be arranged in the various technical schemes on the end surfaces of any both sides in upside, downside, left side and right side four sides of lamination electricity core in the utility model fibrous paper 101, be arranged on the end surfaces of upside and these both sides of downside of lamination electricity core effect with fibrous paper 101 better; Be arranged in the various technical schemes on the end surfaces of any three sides in upside, downside, left side and right side four sides of lamination electricity core in the utility model fibrous paper 101, be arranged on the end surfaces of this three side of left side, right side and downside of lamination electricity core effect with fibrous paper 101 better; This technical scheme serves as optimum best on the end surfaces of four sides on upside, downside, left side and right side of lamination electricity core and the utility model is arranged on fibrous paper 101.

The utility model is not limited to the foregoing description, and the technical scheme that all employings are equal to or the equivalence replacement forms all falls into the protection range that the utility model requires.

Claims

1. lithium-ion-power cell; Comprise shell (1) and lamination electricity core (16); Shell (1) is encapsulated in the outside of lamination electricity core (16); Shell (1) is provided with breach (17); Breach (17) includes installing port (17-1) and liquid injection port (17-2), and negative lug joint (21) and positive pole ear joint (22) are fixed on the shell (1), and negative lug joint (21) top is negative terminals (21-1); Positive pole ear joint (22) top is positive terminal (22-1); Negative terminals (21-1) and positive terminal (22-1) stretch out shell (1) outside through the installing port (17-1) in the breach (17), and lamination electricity core (16) includes negative plate (9), positive plate (10) and insulation diaphragm (7), and negative plate (9) and positive plate (10) are successively alternately; Separate by insulation diaphragm (7) between negative plate (9) and the positive plate (10); The outside of outermost layer pole piece also is provided with insulation diaphragm (7), right ends all with negative plate (9) as the outermost layer pole piece, all negative plates (9) all are connected with negative lug joint (21) through fixture (20); All positive plates (10) all are connected with positive pole ear joint (22) through fixture (20); It is characterized in that: also be provided with fibrous paper (101), fibrous paper (101) is arranged on the end surfaces of any side in upside, downside, left side or the right side of lamination electricity core (16), and perhaps fibrous paper (101) is arranged on the end surfaces of any both sides or three sides in upside, downside, left side and right side four sides of lamination electricity core (16); Perhaps fibrous paper (101) is arranged on the end surfaces of four sides on upside, downside, left side and right side of lamination electricity core (16), and said shell (1) is encapsulated in lamination electricity core (16) outside that is covered with fibrous paper (101).

2. lithium-ion-power cell according to claim 1 is characterized in that: said fibrous paper (101) is a wood pulp cellulose paper.

3. lithium-ion-power cell according to claim 2 is characterized in that: the specification of said wood pulp cellulose paper is>=30g/m ², the said wood pulp cellulose paper that overlays on lamination electricity core (16) outside is 2～3 layers.

4. ion electrokinetic cell according to claim 1; It is characterized in that: film (9-2) and a slice Copper Foil (9-1) that described negative plate (9) is made by two graphite materials are formed; Copper Foil (9-1) is clamped between the film (9-2) of two graphite materials making; Copper Foil (9-1) upper end is as negative electrode lug (9-1-1), and on this negative electrode lug (9-1-1), has the hole (9-3) that lets fixture (20) pass.

5. lithium-ion-power cell according to claim 1; It is characterized in that: film (10-2) and a slice aluminium foil (10-1) that described positive plate (10) is made by two LiFePO 4 materials are formed; Aluminium foil (10-1) is clamped between the film (10-2) of two LiFePO 4 materials making; Aluminium foil (10-1) upper end is as anode ear (10-1-1), and on this anode ear (10-1-1), has the hole (10-3) that lets fixture (20) pass.

6. lithium-ion-power cell according to claim 1; It is characterized in that: described insulation diaphragm (7) is made up of the film (7-2) of two PP material and the film (7-1) of a slice PE material, and the film of PE material (7-1) is clamped between the film (7-2) of two PP material.

7. lithium-ion-power cell according to claim 1 is characterized in that: the two ends up and down of said shell (1) are installed with battery case insulating case (26).

8. lithium-ion-power cell according to claim 1; It is characterized in that: said shell (1) includes casing (2) and cover plate (3); Breach (17) is opened on cover plate (3); Breach (17) also includes venting (17-3), posts safety anti-explosive film (19) on the venting (17-3), electronic mounting plate (4) is housed below the cover plate (3); Electronic mounting plate (4) upward and on the corresponding position of breach (17) has down breach (18), and following breach (18) includes location and installation mouth (18-1), fluid injection port (18-2) and explosion-proof through hole (18-3).