CN102280667B - Nickel-metal hydride battery - Google Patents
Nickel-metal hydride battery Download PDFInfo
- Publication number
- CN102280667B CN102280667B CN201110194572.4A CN201110194572A CN102280667B CN 102280667 B CN102280667 B CN 102280667B CN 201110194572 A CN201110194572 A CN 201110194572A CN 102280667 B CN102280667 B CN 102280667B
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- China
- Prior art keywords
- safety disc
- battery
- insulating coating
- negative pole
- positive pole
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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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Abstract
The invention discloses a nickel-metal hydride battery, which comprises a battery cell, wherein the battery cell comprises an anode, a cathode, a diaphragm positioned between the anode and the cathode, and a conductive safety disc, wherein one end of the safety disc is connected with the anode and the other end of the safety disc is connected with the cathode; an insulating coating is coated at at least one end of the safety disc and anode connecting end and the safety disc and cathode connecting end; and the insulating coating is made of a plastic which is melted at a melting temperature. By the nickel-metal hydride battery, when the internal temperature of the battery exceeds the melting temperature of the insulating coating, the insulating coating is melted, so that the anode is electrically connected with the cathode through the safety disc, and the battery is short-circuited and rapidly discharges; therefore, the nickel-metal hydride battery cannot be exploded.
Description
[technical field]
The present invention relates to secondary cell, relate in particular to a kind of Ni-MH battery.
[background technology]
Ni-MH battery has the advantages such as environmental protection, life-span are good, technical maturity, and in modern society, its use amount is increasing.
When Ni-MH battery is used under comparatively harsh environment, as electric hot plate barbecue, internal temperature of battery raises, thereby inside battery can decompose and discharge a large amount of hydrogen and oxygen, finally blasts.
[summary of the invention]
Based on this, be necessary to provide the Ni-MH battery that can not blast after a kind of internal temperature rising.
A Ni-MH battery, comprising: battery core; Described battery core comprises: positive pole, negative pole and the barrier film between described positive pole and described negative pole, and described battery core also comprises the safety disc of conduction;
Described safety disc one end is connected with described positive pole, and the described safety disc other end is connected with described negative pole;
Described safety disc be connected with described positive pole end be connected with described negative pole with described safety disc hold at least one end scribble insulating coating;
The material of described insulating coating is to reach the plastics that melt after fusion temperature.
Preferably, described plastics are polypropylene, polyvinyl chloride, Merlon or PUR.
Preferably, the material of described safety disc is copper, nickel or aluminium.
Preferably, the cross section of described safety disc is U-shaped.
Preferably, thereby described safety disc one end is welded on described positive pole and is electrically connected to described positive pole, and the described safety disc other end scribbles after insulating coating and described negative pole butt.
Preferably, thereby described safety disc one end is welded on described negative pole and is connected with described negative electricity, and the described safety disc other end scribbles after insulating coating and described anodal butt.
Preferably, described safety disc one end scribbles insulating coating and described anodal butt, and the described safety disc other end scribbles after insulating coating and described negative pole butt.
This Ni-MH battery, increased the safety disc of conduction with respect to traditional Ni-MH battery, safety disc be connected with positive pole end be connected with negative pole hold at least one end scribble insulating coating, thereby guaranteed the insulation between positive pole and negative pole under normal circumstances.When Ni-MH battery is in comparatively harsh environment and uses, internal temperature of battery raises, and when internal temperature of battery surpasses insulating coating fusion temperature, thereby insulating coating fusing makes positive pole and negative pole be electrically connected to by safety disc, battery short circuit rapidly electric discharge, thus can not blast.
[accompanying drawing explanation]
Fig. 1 is the schematic cross-section of battery core of the Ni-MH battery of an execution mode.
[embodiment]
Below in conjunction with drawings and Examples, Ni-MH battery is further described.
The Ni-MH battery of one execution mode, comprising: battery core, housing and be infused in the electrolyte in housing.
Battery core as shown in Figure 1, comprising: positive pole 10, negative pole 20, the barrier film 30 between positive pole 10 and negative pole 20, and the safety disc 40 of conduction.
Safety disc 40 one end are connected with anodal 10, and safety disc 40 other ends are connected with negative pole 20.
Safety disc 40 be connected with anodal 10 end be connected with negative pole 20 with safety disc 40 hold at least one end scribble insulating coating 50, make to insulate between positive pole 10 and negative pole 20.
In present embodiment, safety disc 40 is connected to hold with anodal 10 and scribbles insulating coating 50.
The material of insulating coating 50 is to reach the plastics that melt after fusion temperature.
This Ni-MH battery, with respect to traditional Ni-MH battery, increased the safety disc 40 of conduction, safety disc 40 be connected with anodal 10 end be connected with negative pole 20 hold at least one end scribble insulating coating 50, thereby guaranteed the insulation between positive pole 10 and negative pole 20 under normal circumstances.Ni-MH battery is in comparatively harsh environment use and causes internal temperature of battery to raise, when internal temperature of battery surpasses insulating coating 50 fusion temperature, thereby insulating coating 50 fusings make positive pole 10 and negative pole 20 be electrically connected to by safety disc 40, battery short circuit rapidly electric discharge, thus can not blast.
Concrete, above-mentioned plastics can be polypropylene (PP), polyvinyl chloride (PVC), Merlon (PC) or PUR.
PUR can be EVA (ethylene-vinyl acetate copolymer) PUR, polyvinyl acetate (PVAC) PUR or polyvinyl alcohol (PVA) PUR.
In execution mode preferably, adopt PUR as the material of insulating coating 50.
In present embodiment, the material of insulating coating 50 is EVA PUR.
Safety disc 40 materials can be copper, nickel or aluminium.
In the present embodiment, safety disc material is nickel.
In present embodiment, the cross section of safety disc 40 is U-shaped.Thereby safety disc 40 one end are welded on negative pole 20 and are electrically connected to negative pole 20, safety disc 40 other ends scribble insulating coating 50 afterwards and anodal 10 butts
In other execution mode, thereby can be also that U-shaped safety disc one end is welded to and anodal upper is electrically connected to positive pole by cross section, the other end scribbles after insulating coating and negative pole butt.
In other execution mode, can be also that U-shaped safety disc one end scribbles insulating coating and anodal butt by cross section, the other end scribbles after insulating coating and negative pole butt.
Especially, insulating coating evenly can also be coated in to safety disc periphery, two ends respectively with the both positive and negative polarity butt of battery.
The above embodiment has only expressed one or more execution modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (4)
1. a Ni-MH battery, comprising: battery core; Described battery core comprises: positive pole, negative pole and the barrier film between described positive pole and described negative pole, it is characterized in that, and described battery core also comprises the safety disc of conduction;
Described safety disc one end is connected with described positive pole, and the described safety disc other end is connected with described negative pole;
Described safety disc be connected with described positive pole end be connected with described negative pole with described safety disc hold at least one end scribble insulating coating;
The material of described insulating coating is to reach the plastics that melt after fusion temperature;
The material of insulating coating is EVA PUR;
The material of safety disc is nickel;
The cross section of safety disc is U-shaped.
2. Ni-MH battery as claimed in claim 1, is characterized in that, thereby described safety disc one end is welded on described positive pole and is electrically connected to described positive pole, and the described safety disc other end scribbles after insulating coating and described negative pole butt.
3. Ni-MH battery as claimed in claim 1, is characterized in that, thereby described safety disc one end is welded on described negative pole and is connected with described negative electricity, and the described safety disc other end scribbles after insulating coating and described anodal butt.
4. Ni-MH battery as claimed in claim 1, is characterized in that, described safety disc one end scribbles insulating coating and described anodal butt, and the described safety disc other end scribbles after insulating coating and described negative pole butt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110194572.4A CN102280667B (en) | 2011-07-12 | 2011-07-12 | Nickel-metal hydride battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110194572.4A CN102280667B (en) | 2011-07-12 | 2011-07-12 | Nickel-metal hydride battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102280667A CN102280667A (en) | 2011-12-14 |
| CN102280667B true CN102280667B (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110194572.4A Active CN102280667B (en) | 2011-07-12 | 2011-07-12 | Nickel-metal hydride battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN102280667B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017116489B4 (en) * | 2017-07-21 | 2023-03-16 | Phoenix Contact Gmbh & Co. Kg | Protective device for protecting an electrical consumer |
| CN109659483B (en) * | 2017-10-11 | 2021-08-03 | 宁德时代新能源科技股份有限公司 | Secondary cell top cap subassembly and secondary cell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440088A (en) * | 2002-02-06 | 2003-09-03 | 三星Sdi株式会社 | Battery unit, lithium polymer battery therewith and manufacture thereof |
| CN1960037A (en) * | 2006-10-13 | 2007-05-09 | 深圳市豪鹏科技有限公司 | Cathode piece of hydrogen-nickel battery, and method for fabricating hydrogen-nickel battery by using the cathode pieces |
-
2011
- 2011-07-12 CN CN201110194572.4A patent/CN102280667B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440088A (en) * | 2002-02-06 | 2003-09-03 | 三星Sdi株式会社 | Battery unit, lithium polymer battery therewith and manufacture thereof |
| CN1960037A (en) * | 2006-10-13 | 2007-05-09 | 深圳市豪鹏科技有限公司 | Cathode piece of hydrogen-nickel battery, and method for fabricating hydrogen-nickel battery by using the cathode pieces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102280667A (en) | 2011-12-14 |
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Address after: 518111 Building 1, 68 Xinxia Avenue, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen haopeng Technology Co.,Ltd. Address before: 518111 building A2, Luoshan Industrial Zone, Shanxia, Pinghu Town, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HAOPENG TECHNOLOGY Co.,Ltd. |
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