CN204577476U - The hermetically-sealed construction of electrokinetic cell top cover and electrode - Google Patents
The hermetically-sealed construction of electrokinetic cell top cover and electrode Download PDFInfo
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- CN204577476U CN204577476U CN201520175965.4U CN201520175965U CN204577476U CN 204577476 U CN204577476 U CN 204577476U CN 201520175965 U CN201520175965 U CN 201520175965U CN 204577476 U CN204577476 U CN 204577476U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses the hermetically-sealed construction of a kind of electrokinetic cell top cover and electrode, comprise top cover substrate, described top cover substrate is provided with two electrode holes be respectively used to through positive electrode and negative electrode, in described electrode hole, sky is greater than positive electrode or negative electrode and forms annular gap with positive electrode or negative electrode, be provided with glass seal layer in the annular gap of described electrode hole and positive electrode or negative electrode, described glass seal layer and top cover substrate, positive electrode, negative electrode are fused into one.The utility model has corrosion-resistant, ageing-resistant, that sealing is firm, sealing property is stable advantage.
Description
Technical field
The utility model relates to accessory battery, especially relate to a kind of corrosion-resistant, ageing-resistant, sealing firmly, the hermetically-sealed construction of the stable electrokinetic cell top cover of sealing property and electrode.
Background technology
Electrokinetic cell is the important component part of new forms of energy battery, and its great advantage is that energy is high, pollution-free; Be the developing direction of new-energy automobile and energy-accumulating power station, thus the safety performance of battery is particularly important, and the sealing of electrokinetic cell top cover is the important leverage of cell safety.
The sealing of electrokinetic cell is one of key factor affecting battery safety and durability, and electrokinetic cell top cover electrode antiseepage leakproof is a power battery technology difficult problem always.
Present stage, the sealing of electrokinetic cell top cover electrode and insulation mainly adopt plastic parts, although the feature such as plastic material has good insulating properties, and processing technology is simple, adopt plastic parts to have following defect as seal:
1. plastic parts Long contact time electrolyte can be corroded, and its sealing and resistance to ag(e)ing reduce greatly, causes that plastic parts is aging, seal failure, causes oozing out of inside battery electrolyte, causes battery failure;
2., when operating ambient temperature fluctuation is larger, plastic parts contraction change is larger, and sealing effectiveness is reduced greatly;
3. battery is in violent vibration environment, and the sealing effectiveness of plastic parts reduces.
Utility model content
For solving the problem, the purpose of this utility model be to provide a kind of corrosion-resistant, ageing-resistant, sealing firmly, the hermetically-sealed construction of the stable electrokinetic cell top cover of sealing property and electrode.
The utility model is realized by following technical measures, the hermetically-sealed construction of a kind of electrokinetic cell top cover and electrode, comprise top cover substrate, described top cover substrate is provided with two electrode holes be respectively used to through positive electrode and negative electrode, in described electrode hole, sky is greater than positive electrode or negative electrode and forms annular gap with positive electrode or negative electrode, be provided with glass seal layer in the annular gap of described electrode hole and positive electrode or negative electrode, described glass seal layer and top cover substrate, positive electrode, negative electrode are fused into one.
As a kind of optimal way, the outside top of described electrode hole surrounding is extended a tubular stationary magazine creel, in described stationary magazine creel, sky is greater than positive electrode or negative electrode and forms annular gap with positive electrode or negative electrode, is provided with glass seal layer in the annular gap of described stationary magazine creel and positive electrode or negative electrode.
As a kind of optimal way, described positive electrode or negative electrode are provided with asperities through during electrode hole relative to the damaged surface of stationary magazine creel, and described glass seal layer is filled in dimpled grain.
As a kind of optimal way, described asperities is pore.
As a kind of optimal way, the bottom of described negative electrode is copper product, and top is aluminum.
As a kind of optimal way, the described glass seal layer being arranged at described positive electrode and negative electrode is respectively different colours.
As a kind of optimal way, described glass seal layer stretches out centered by electrode along top cover substrate surface, forms annular isolation layer.
The utility model arranges glass seal layer between top cover substrate and electrode.Glass material by high temperature melt by and the top cover substrate of battery and electrode welding form an entirety.Glass seal layer Long contact time electrolyte can not be corroded, and by the problem of electrolytic corrosion when solving plastic parts for sealing, also ensure that the sealing effectiveness of battery under adverse circumstances or hot conditions.Further, glass seal layer of the present utility model and battery cap substrate, electrode welding form an overall structure, and therefore battery is in strenuous vibration situation, also ensure that good sealing effectiveness, decrease assembly program simultaneously, improve working (machining) efficiency, reduce cost.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the utility model one embodiment;
Fig. 2 is the cross-sectional view of another embodiment of the utility model.
Embodiment
Contrast accompanying drawing below in conjunction with embodiment the utility model is described in further detail.
A kind of electrokinetic cell top cover of the present embodiment and the hermetically-sealed construction of electrode, please refer to Fig. 1, comprise top cover substrate 3, described top cover substrate 3 is provided with two electrode holes be respectively used to through positive electrode and negative electrode 1, in described electrode hole, sky is greater than positive electrode or negative electrode 1 and forms annular gap with positive electrode or negative electrode 1, be provided with glass seal layer 2 in the annular gap of described electrode hole and positive electrode or negative electrode 1, described glass seal layer 2 is fused into one with top cover substrate 3, positive electrode, negative electrode.Electrode 1 can be copper product or aluminum or be composite material or other metals.
This structure arranges glass seal layer 2 between top cover substrate 3 and electrode 1.Glass material by high temperature melt by and the top cover substrate 3 of battery and electrode 1 welding form an entirety.Glass seal layer 2 Long contact time electrolyte can not be corroded, and by the problem of electrolytic corrosion when solving plastic parts for sealing, also ensure that the sealing effectiveness of battery under adverse circumstances or hot conditions.Further, glass seal layer 2 and battery cap substrate 3, electrode 1 welding of this structure form an overall structure, and therefore battery is in strenuous vibration situation, also ensure that good sealing effectiveness, decrease assembly program simultaneously, improve working (machining) efficiency, reduce cost.
At the electrokinetic cell top cover of another embodiment and the hermetically-sealed construction of electrode, please refer to accompanying drawing 2, the basis of previous technique scheme can also be specifically, the outside top of electrode hole surrounding is extended a tubular stationary magazine creel 31, in described stationary magazine creel 31, sky is greater than positive electrode or negative electrode 1 and forms annular gap with positive electrode or negative electrode 1, is provided with glass seal layer 2 in the annular gap of described stationary magazine creel 31 and positive electrode or negative electrode 1.Thus increase the faying face of battery cap substrate 3, electrode 1 and glass seal layer 2, add the thickness of glass seal layer 2, make battery operated under the adverse circumstances such as vibrations, impact, its sealing effectiveness more can not be affected.
The electrokinetic cell top cover of the present embodiment and the hermetically-sealed construction of electrode, please refer to accompanying drawing 2, the basis of previous technique scheme can also be specifically, positive electrode or negative electrode 1 are provided with asperities 11 through during electrode hole relative to the damaged surface of stationary magazine creel 31, and described glass seal layer 2 is filled in dimpled grain.Thus further increase connectivity and the sealing effectiveness of battery cap substrate 3, electrode 1 and glass seal layer 2.
The electrokinetic cell top cover of the present embodiment and the hermetically-sealed construction of electrode, the basis of previous technique scheme can also be specifically, and asperities can also be pore.
At the electrokinetic cell top cover of above-described embodiment and the hermetically-sealed construction of electrode, please refer to accompanying drawing 2, the basis of previous technique scheme can also be specifically, the bottom of negative electrode is copper product 13, and top is aluminum 12.Thus on the basis of improving battery conductive, also can not increase weight and the cost of battery too much.
At the electrokinetic cell top cover of above-described embodiment and the hermetically-sealed construction of electrode, the basis of previous technique scheme can also be specifically, the described glass seal layer being arranged at described positive electrode and negative electrode is respectively different colours.For distinguishing positive electrode and negative electrode, avoid user to mistake, thus improve the safety in utilization of battery.
At the electrokinetic cell top cover of above-described embodiment and the hermetically-sealed construction of electrode, the basis of previous technique scheme can also be specifically, and glass seal layer stretches out centered by electrode along top cover substrate surface, forms annular isolation layer.The sealing of battery cap, the effect of leakage-proof and seepage-proof can be strengthened further like this.
More than that the hermetically-sealed construction of the utility model electrokinetic cell top cover and electrode and processing method thereof are set forth; the utility model is understood for helping; but execution mode of the present utility model is not restricted to the described embodiments; any do not deviate from the utility model principle under do change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence, be included in protection range of the present utility model.
Claims (7)
1. the hermetically-sealed construction of an electrokinetic cell top cover and electrode, it is characterized in that: comprise top cover substrate, described top cover substrate is provided with two electrode holes be respectively used to through positive electrode and negative electrode, in described electrode hole, sky is greater than positive electrode or negative electrode and forms annular gap with positive electrode or negative electrode, be provided with glass seal layer in the annular gap of described electrode hole and positive electrode or negative electrode, described glass seal layer and top cover substrate, positive electrode, negative electrode are fused into one.
2. the hermetically-sealed construction of electrokinetic cell top cover according to claim 1 and electrode, it is characterized in that: the outside top of described electrode hole surrounding is extended a tubular stationary magazine creel, in described stationary magazine creel, sky is greater than positive electrode or negative electrode and forms annular gap with positive electrode or negative electrode, is provided with glass seal layer in the annular gap of described stationary magazine creel and positive electrode or negative electrode.
3. the hermetically-sealed construction of electrokinetic cell top cover according to claim 2 and electrode, is characterized in that: described positive electrode or negative electrode are provided with asperities through during electrode hole relative to the damaged surface of stationary magazine creel, and described glass seal layer is filled in dimpled grain.
4. the hermetically-sealed construction of electrokinetic cell top cover according to claim 3 and electrode, is characterized in that: described asperities is pore.
5. the hermetically-sealed construction of electrokinetic cell top cover according to claim 1 and electrode, is characterized in that: the bottom of described negative electrode is copper product, and top is aluminum.
6. the hermetically-sealed construction of electrokinetic cell top cover according to claim 1 and electrode, is characterized in that: the described glass seal layer being arranged at described positive electrode and negative electrode is respectively different colours.
7. the hermetically-sealed construction of electrokinetic cell top cover according to claim 1 and electrode, is characterized in that: described glass seal layer stretches out centered by electrode along top cover substrate surface, forms annular isolation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520175965.4U CN204577476U (en) | 2015-03-26 | 2015-03-26 | The hermetically-sealed construction of electrokinetic cell top cover and electrode |
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| CN201520175965.4U CN204577476U (en) | 2015-03-26 | 2015-03-26 | The hermetically-sealed construction of electrokinetic cell top cover and electrode |
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| CN204577476U true CN204577476U (en) | 2015-08-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752646A (en) * | 2015-03-26 | 2015-07-01 | 深圳市科达利实业股份有限公司 | Sealing structure of power battery top cap and electrode |
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2015
- 2015-03-26 CN CN201520175965.4U patent/CN204577476U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752646A (en) * | 2015-03-26 | 2015-07-01 | 深圳市科达利实业股份有限公司 | Sealing structure of power battery top cap and electrode |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |