CN1956250A - Additive for reducing internal pressure of NiH battery - Google Patents
Additive for reducing internal pressure of NiH battery Download PDFInfo
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- CN1956250A CN1956250A CNA2006101407754A CN200610140775A CN1956250A CN 1956250 A CN1956250 A CN 1956250A CN A2006101407754 A CNA2006101407754 A CN A2006101407754A CN 200610140775 A CN200610140775 A CN 200610140775A CN 1956250 A CN1956250 A CN 1956250A
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
An additive for lowering internal pressure of NiN2 cell can obviously lower rising-up speed of internal pressure and final internal pressure value in charging course of cell by adding macro-molecular additives of green biological type with high catalytic activity and special biological activity in certain radio into electrode of secondary NiN2 cell.
Description
Technical field
The present invention is a kind of additive that reduces internal pressure of NiH battery, relates to the battery production technology, belongs to the environmental protection field.
Background technology
Ni-MH battery has the energy density height as the typical case of the green battery of novel high-performance representative, no cadmium pollution, and characteristics such as electric current fast charging and discharging have obtained application widely in the small portable electronic device greatly.Along with research work deeply and the continuous development of technology, also along with the becoming increasingly conspicuous of energy problem and environmental protection problem, this class battery also progressively is applied on electric tool, motor vehicle and hybrid vehicle, forms new development.In order to satisfy the requirement of Ni-MH power cell, the fail safe and the stability that improve combination property, the especially battery of battery are the task of top priority.Because the interior pressure of Ni-MH battery is the factor that has a strong impact on battery security, reduce inner pressure of battery rising speed and final in the pressure value, improve the fail safe of battery and stability with one of key issue of the combination property that improves battery.
The objective of the invention is fail safe and stability problem at the required raising of Ni-MH power cell, one class additive and addition manner is provided, reduced the high-speed and final interior pressure value of the interior voltage rise in the battery charging process by a relatively large margin, improved the charge efficiency of battery, improved the overall performance of battery, thereby made the performance of battery be more suitable for the requirement of electrokinetic cell.
Summary of the invention
Content of the present invention is achieved in that
In Ni-MH battery, add the additive that certain proportion (below 5%) has high catalytic activity, it is characterized in that in battery cathode active substance, battery electrode sheet surface, battery electrolyte or the surface of battery diaphragm is added and to be had the big molecular additives of green bio class of high catalytic activity, make sealed cell, battery size is unrestricted.The additive types that present technique adopts has: the chlorophyll with characteristic of semiconductor; The chlorophyll slaine; With the long key of the polyisoprene of polyenoid key is the carotenoid of branch subcenter.The chlorophyll slaine is characterised in that in these additives: chlorophyllous central metallic ions magnesium is replaced with other metal, metal is in the space in the middle of the tetrapyrrole ring, combining with it through covalent bond and coordinate bond forms the chlorophyll slaine, as sodium copper chlorophyllin, and sodium-iron-chlorophyllin etc.; Carotenoid is characterised in that: dividing subcenter all is the long key of polyisoprene of ethylene linkage, based on this, and the various derivatives that modes such as the adding by terminal oxidation, oxygen or the rotation of key and isomerization produce.(as:
Deng).Add after the additive, the interior pressure of Ni-MH battery can descend 20%～80% usually, because the reaction more complicated that relates in the cell reaction process, the high catalytic activity of additive and special biologically active generally all show by the reduction of inner pressure of battery.These additives can directly adopt the chemically pure reagent of selling on the market.
Concrete addition manner is as follows:
The present invention is when the nickel-hydrogen battery negative pole active material adds additive, employing is mixed additive in the battery cathode active substance less than 5% ratio with mass percent when making battery cathode sheet, add 1.5～2% concentration again and be 60% ptfe emulsion, by size mixing, prepared such as smear, vacuumize, compressing tablet becomes negative pole piece of battery, again with positive plate and membrane coil coiled battery.During the charging of its 0.4 multiplying power of the battery that this method is made final total in pressure value final can reduce nearly 60%, 1 multiplying power charging the time pressure value can reduce nearly 80%.
The present invention is when additive is added on nickel-hydrogen battery electrode sheet surface, and employing evenly applies on the battery pole piece surface and uses the consoluet additive of absolute ethyl alcohol in advance, is wound into battery together with barrier film then.During the charging of its 0.4 multiplying power of the battery that this method is made final in pressure value final can reduce nearly 50%, 1 multiplying power charging the time pressure value can reduce nearly 70%.
The present invention adds in the additive in Ni-MH battery electrolyte, and additive is sneaked in the electrolyte less than 5% ratio with mass percent, adopts this electrolyte to give the battery liquid-filling of winding, seals then and makes battery.During the charging of its 0.4 multiplying power of the battery that this method is made final in pressure value final can reduce nearly 30%, 1 multiplying power charging the time pressure value can reduce nearly 40%.
The present invention is when additive is added on the surface of battery diaphragm, and it is prior with the consoluet additive of absolute ethyl alcohol to adopt membrane surface evenly to apply, and is wound into battery together with battery positive/negative plate then.During the charging of its 0.4 multiplying power of the battery that this method is made final in pressure value final can reduce nearly 30%, 1 multiplying power charging the time pressure value can reduce nearly 40%.
The present invention adds above-mentioned additive in battery, technology is comparatively simple, need not change existing equipment.According to adding active material ratio and addition manner difference, final in the pressure value can reduce by 20～80%, make battery have better stability and fail safe, thereby give secondary cell better charge-discharge performance.
The invention has the advantages that:
1, by adds the big molecular additives of green bio class be lower than 5% high catalytic activity at inside battery, can reduce battery charge significantly and the process of overcharging in battery interior voltage rise high-amplitude and final in the pressure value, thereby significantly improve the fail safe and the stability of battery.Technology is simple, and is easy to operate.
2, this green bio class macromolecular substances is all environmentally friendly, is a kind of new additive agent of safe green.
3, by add the big molecular additives of green bio class of a spot of high catalytic activity according to certain ratio that is not higher than 5%, according to adding active material ratio and addition manner difference, the pressure value can reduce by 20～80% in final, make battery have better stability and fail safe, thereby give Ni-MH power cell better charge-discharge performance.
Description of drawings
Fig. 1 is battery 0.5 multiplying power of having added the battery of additive with method provided by the invention and the not added additive inner pressure of battery rising situation comparison diagram in 300 later 0.4 multiplying power charging processes that circulates.Charging system is: 0.4 multiplying power charges to 150% of rated capacity.In Fig. 1, the A line represents to have added with method provided by the invention the inner pressure of battery rising curve of additive, and the B line represents not add the high curve of interior voltage rise of the reference cell of additive.As can be seen from Figure, with method provided by the invention added the interior voltage rise of battery when 0.4 multiplying power is overcharged of additive high-speed and final in the pressure value all be starkly lower than the reference cell that does not add any additives.
Fig. 2 carries out the comparison diagram of inner pressure of battery and cell voltage in the 1 multiplying power pulse current charge process for the battery that added the battery of additive and do not added additive with method provided by the invention for 2000 times later in floating charge.In Fig. 2, A
VoltageLine and A
The interior pressureVoltage curve when line represents to have added 1 multiplying power charging after the battery float of additive with method provided by the invention and in the line of buckling, B
VoltageLine and B
The interior pressureThe reference cell that line represents not add additive after floating charge the cell voltage curve the during charging of 1 multiplying power and in the line of buckling.As can be seen from Figure, the charging voltage platform that has added the battery of additive with method provided by the invention is starkly lower than the reference cell that does not add any additives; And the high-speed and final interior pressure value of interior voltage rise of having added the battery of additive with method provided by the invention all is starkly lower than the reference cell that does not add any additives.
Fig. 3 charges to 150% of rated capacity for the battery that has added the battery of additive and do not added additive with method provided by the invention successively carries out 0.4 multiplying power, 0.4 multiplying power discharging to 1 volt and 1 multiplying power charge to inner pressure of battery rising situation comparison diagram in 150%, 0.4 multiplying power discharging to the 1 volt process of rated capacity.In Fig. 3, the A line represents to have added with method provided by the invention the inner pressure of battery rising curve of additive, and the B line represents not add the high curve of interior voltage rise of the reference cell of additive.As can be seen from Figure, the interior voltage rise of the battery that has added additive with method provided by the invention when 0.4 multiplying power and 1 multiplying power are overcharged high-speed and final in the pressure value all be starkly lower than the reference cell that does not add any additives.
Fig. 4 for the battery that added the battery of additive and do not added additive with addition manner provided by the invention in the floating charge process battery charging and discharging platform with the change curve of floating charge number of times.In Fig. 4, the A line represents to have added with method provided by the invention the battery float characteristic curve of additive, and the B line represents not add the floating charge characteristic curve of the reference cell of additive.As can be seen from Figure, the charging voltage platform that has added battery battery in the floating charge process of additive with method provided by the invention raises slowly, and the charging voltage platform of reference cell is obvious with floating charge process rising speed.
Embodiment
Embodiment 1:
No. 5 battery cathode active substance (AB
5The type alloy, A and B are mishmetal) middle 4.8% sodium-iron-chlorophyllin that adds, add ptfe emulsion etc. again, by size mixing, prepared such as smear, vacuumize, compressing tablet becomes No. 5 battery cathode sheets (42mm * 110mm * 0.38mm), and positive plate (42mm * 80mm * 0.68mm) and No. 5 batteries of membrane coil coiled, voltage rise was high-speed in battery 0.4 multiplying power was charged reduces by 50%, and final interior pressure value has reduced by 52%; Voltage rise was high-speed in 1 multiplying power was charged reduces by 77%, and final interior pressure value has reduced by 78%, and the charging voltage platform reduces by 16%.
Embodiment 2:
No. 5 battery cathode active substance (AB
5The type alloy, A and B are mishmetal) in add 1.5% sodium copper chlorophyllin, other step is with embodiment 1, voltage rise is high-speed in the battery 0.4 multiplying power charging of making reduces by 43%, final in the pressure value reduced by 45%; Voltage rise was high-speed in 1 multiplying power was charged reduces by 56%, and final interior pressure value has reduced by 60%.
Embodiment 3:
No. 5 battery cathode active substance (AB
5The type alloy, A and B are mishmetal) in add 1.5% chlorophyll (chlorophyll magnesium sodium salt), other step is with embodiment 1, voltage rise is high-speed in the battery 0.4 multiplying power charging of making reduces by 30%, final in the pressure value reduced by 34%; Voltage rise was high-speed in 1 multiplying power was charged reduces by 32%, and final interior pressure value has reduced by 32%.
Embodiment 4:
No. 5 battery cathode active substance (AB
5The type alloy, A and B are mishmetal) in add 3% carotenoid, other step is with embodiment 1, voltage rise is high-speed in the battery 0.4 multiplying power charging of making reduces by 32%, final in the pressure value reduced by 37%; Voltage rise was high-speed in 1 multiplying power was charged reduces by 32%, and final interior pressure value has reduced by 33%.
Embodiment 5:
With positive plate (42mm * 80mm * 0.68mm), negative plate (the surface-coated one deck sodium copper chlorophyllin (3mg) of 42mm * 110mm * 0.38mm), be wound into battery No. 5, inner pressure of battery rising speed reduces by 60% when carrying out 1 multiplying power pulse current charge again behind the battery float 2000 times, final in the pressure value reduce by 65%.
Embodiment 6:
With positive plate (42mm * 80mm * 0.68mm), negative plate (the surface-coated one deck sodium-iron-chlorophyllin (1.5mg) of 42mm * 110mm * 0.38mm), be wound into battery No. 5, inner pressure of battery rising speed reduces by 68% when carrying out 1 multiplying power pulse current charge again behind the battery float 2000 times, final in the pressure value reduce by 70%.
Embodiment 7:
With positive plate (42mm * 80mm * 0.68mm), (the surface-coated one deck chlorophyll (chlorophyll magnesium sodium salt) of 42mm * 110mm * 0.38mm) (1.5mg) for negative plate, be wound into battery No. 5, inner pressure of battery rising speed reduces by 42% when carrying out 1 multiplying power pulse current charge again behind the battery float 2000 times, final in the pressure value reduce by 48%.
Embodiment 8:
With positive plate (42mm * 80mm * 0.68mm), negative plate (the surface-coated one deck carotenoid (1.5mg) of 42mm * 110mm * 0.38mm), be wound into battery No. 5, inner pressure of battery rising speed reduces by 34% when carrying out 1 multiplying power pulse current charge again behind the battery float 2000 times, final in the pressure value reduce by 35%.
Embodiment 9:
Add 2% carotenoid in the electrolyte, inject No. 5 battery, anode is Ni (OH)
2(42mm * 80mm * 0.68mm), battery cathode is AB
5(42mm * 110mm * 0.38mm), the circulation of battery 1 multiplying power is carried out the 150% o'clock inner pressure of battery rising speed that 1 multiplying power forces to overcharge to rated capacity and is reduced by 26% after 160 weeks, final in the pressure value reduce by 31%.
Embodiment 10:
Add 2% chlorophyll (chlorophyll magnesium sodium salt) in the electrolyte, inject No. 5 battery, other is with embodiment 9, and the circulation of battery 1 multiplying power is carried out the 150% o'clock inner pressure of battery rising speed that 1 multiplying power forces to overcharge to rated capacity and reduced by 21% after 160 weeks, final in the pressure value reduce by 24%.
Embodiment 11:
Add 2% sodium copper chlorophyllin in the electrolyte, injects No. 5 battery, other is with embodiment 9, and the circulation of battery 1 multiplying power is carried out the 150% o'clock inner pressure of battery rising speed that 1 multiplying power forces to overcharge to rated capacity and reduced by 29% after 160 weeks, final in pressure value reduction by 32%.
Embodiment 12:
Add 2% sodium-iron-chlorophyllin in the electrolyte, injects No. 5 battery, other is with embodiment 9, and the circulation of battery 1 multiplying power is carried out the 150% o'clock inner pressure of battery rising speed that 1 multiplying power forces to overcharge to rated capacity and reduced by 36% after 160 weeks, final in pressure value reduction by 39%.
Embodiment 13:
Membrane surface applies 2.5% sodium-iron-chlorophyllin, is wound into battery with battery positive/negative plate, and anode is Ni (OH)
2(42mm * 80mm * 0.68mm), battery cathode is AB
5(42mm * 110mm * 0.38mm), the circulation of battery 0.5 multiplying power is carried out the 150% o'clock inner pressure of battery rising speed that 0.4 multiplying power forces to overcharge to rated capacity and is reduced by 22% after 160 weeks, final in the pressure value reduce by 24%.
Embodiment 14:
Membrane surface applies 2.5% sodium copper chlorophyllin, and other step is with embodiment 13, and the circulation of battery 0.5 multiplying power is carried out the 150% o'clock inner pressure of battery rising speed that 0.4 multiplying power forces to overcharge to rated capacity and reduced by 21% after 160 weeks, final in the pressure value reduce by 22%.
Embodiment 15:
Membrane surface applies 2.5% chlorophyll (chlorophyll magnesium sodium salt), other step is with embodiment 13, battery 0.5 multiplying power circulation is carried out the 150% o'clock inner pressure of battery rising speed that 0.4 multiplying power forces to overcharge to rated capacity and is reduced by 25% after 160 weeks, final in the pressure value reduce by 27%.
Embodiment 16:
Membrane surface applies 2.5% carotenoid, and other step is with embodiment 13, and the circulation of battery 0.5 multiplying power is carried out the 150% o'clock inner pressure of battery rising speed that 0.4 multiplying power forces to overcharge to rated capacity and reduced by 20% after 160 weeks, final in the pressure value reduce by 22%.
Claims (6)
1, a kind of additive that reduces internal pressure of NiH battery, this additive is selected from carotenoid derivatives, it is characterized in that: its minute subcenter all be the long key of polyisoprene of ethylene linkage, based on this, rotation or isomerization mode by terminal oxidation, terminal key produce.
2, a kind of method of adding the additive of the described reduction internal pressure of NiH battery of claim 1 is characterized in that: described additive is made an addition in the cell negative electrode material, is added on the electrode plates surface, makes an addition in the electrolyte or make an addition on the barrier film.
3, a kind of according to the described adding method of claim 2, it is characterized in that: described additive is made an addition in the cell negative electrode material, employing is mixed additive in the battery cathode active substance less than 5% ratio with mass percent when making battery cathode sheet, add 1.5～2% concentration again and be 60% ptfe emulsion, by size mixing, smear, vacuumize, compressing tablet be prepared into negative pole piece of battery, again with positive plate and membrane coil coiled battery.
4, a kind of according to the described adding method of claim 2, it is characterized in that: described additive is added on the battery pole piece surface, employing evenly applies on the battery pole piece surface and uses the consoluet additive of absolute ethyl alcohol in advance, is wound into battery together with barrier film then.
5, a kind of according to the described adding method of claim 2, it is characterized in that: described additive is made an addition in the electrolyte, employing is added mass percent less than 5% additive in electrolyte, adopt this electrolyte to give the battery liquid-filling of winding, seals then and makes battery.
6, a kind of according to the described adding method of claim 2, it is characterized in that: described additive is made an addition on the barrier film, adopt membrane surface evenly to apply and use the consoluet additive of absolute ethyl alcohol in advance, be wound into battery together with battery positive/negative plate then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101407754A CN100454651C (en) | 2004-09-27 | 2004-09-27 | Additive for reducing internal pressure of NiH battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101407754A CN100454651C (en) | 2004-09-27 | 2004-09-27 | Additive for reducing internal pressure of NiH battery |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100802634A Division CN1305162C (en) | 2004-09-29 | 2004-09-29 | Additive for reducing nickel-hydrogen cell internal pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1956250A true CN1956250A (en) | 2007-05-02 |
| CN100454651C CN100454651C (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101407754A Expired - Fee Related CN100454651C (en) | 2004-09-27 | 2004-09-27 | Additive for reducing internal pressure of NiH battery |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924252A (en) * | 2009-06-15 | 2010-12-22 | 浙江师范大学 | Electrolyte additive of MH-Ni battery |
| CN102544642A (en) * | 2010-12-13 | 2012-07-04 | 依诺特生物能量控股公司 | Isolation membrane, isolation membrane preparation method and organic battery |
| CN109244602A (en) * | 2018-08-27 | 2019-01-18 | 中国科学院大学 | A kind of method of modifying of lithium-air battery electrolyte |
| CN109326457A (en) * | 2018-11-30 | 2019-02-12 | 福建农林大学 | Based on active carbon/chlorophyll copper sodium combination electrode supercapacitor and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO119270B1 (en) * | 1997-11-25 | 2004-06-30 | Institutul De Tehnologie Izotopică Şi Moleculară | Composition for producing hydride electrodes of alkaline electric accumulators and process for producing the same |
-
2004
- 2004-09-27 CN CNB2006101407754A patent/CN100454651C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924252A (en) * | 2009-06-15 | 2010-12-22 | 浙江师范大学 | Electrolyte additive of MH-Ni battery |
| CN102544642A (en) * | 2010-12-13 | 2012-07-04 | 依诺特生物能量控股公司 | Isolation membrane, isolation membrane preparation method and organic battery |
| CN109244602A (en) * | 2018-08-27 | 2019-01-18 | 中国科学院大学 | A kind of method of modifying of lithium-air battery electrolyte |
| CN109326457A (en) * | 2018-11-30 | 2019-02-12 | 福建农林大学 | Based on active carbon/chlorophyll copper sodium combination electrode supercapacitor and preparation method thereof |
| CN109326457B (en) * | 2018-11-30 | 2024-01-02 | 福建农林大学 | Super capacitor based on active carbon/sodium copper chlorophyll composite electrode and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN100454651C (en) | 2009-01-21 |
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