CN1487615A - Accumulator with nano carbon material - Google Patents
Accumulator with nano carbon material Download PDFInfo
- Publication number
- CN1487615A CN1487615A CNA031562965A CN03156296A CN1487615A CN 1487615 A CN1487615 A CN 1487615A CN A031562965 A CNA031562965 A CN A031562965A CN 03156296 A CN03156296 A CN 03156296A CN 1487615 A CN1487615 A CN 1487615A
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- anode
- graphite felt
- positive
- lead
- acid accumulator
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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
The present invention relates to lead-acid accumulator, and provides lead-acid accumulator possessing anode surface covered with porous carbon material or graphite felt. To the surface of the graphite felt and anode plate, activator carrying negative charge and with specific area surface of 860 sq m/g, porosity of 58% and carbon particle size smaller than and equal to 15 nm is added. The present invention makes it possible to make novel lead-acid accumulator with excellent performance, long service life, light weight, great capacity and capacity of great current charge and discharge.
Description
Technical field:
The present invention relates to the lead acid accumulator field, the problem that invention solves is to use the carbonaceous material of porous character or graphite felt to cover at the anode surface of lead acid accumulator.Electronegative in graphite felt and the adding of positive plate face, specific area 860m
2/
0, vesicularity 58%, the activator of carbon granules footpath≤15mm.Produce the far group of performance, long service life, in light weight, the big energy of capacity short time large current charge, the novel lead-acid storage battery of discharge.
Technical background
1, present, the application of sealed lead-acid battery on electric automobile, bicycle enlarges day by day.In this class application, in order to improve rate of energy, when braking, or, be very important to the refresh charging technology that energy carries out the rate of recovery as raising at people Lu Shi, the charge efficiency that promptly improves regenerative electric power is very important, usually, owing to the refresh charging in the vehicle ' process will be finished in several seconds to tens of seconds short time, in this short time, put aside energy as much as possible, big as far as possible charging current must be arranged.But the charge efficiency of the big electric current of lead-acid battery is lower, the carrying out that actual regenerative current has limited refresh charging.
2, the problem on the battery performance aspect, the 1. overlong time (will charge for a long time) of the required charging of excide battery now with little electric current.2. can not discharge and recharge with the big electric current short time.3. battery weight is heavy.4. capacity is low.
With regard to the problem that exists above, if can produce the storage battery of high current charge-discharge, just can be the space that electric motor car provides development, weight alleviate the own wt that just can reduce electric motor car.
Content of the present invention:
The lead acid accumulator of indication of the present invention is to have added the electronegative activator of nano-sized carbon on positive plate, adds that on positive plate graphite felt covers, and its product is exactly a lead acid accumulator.
1, the anode surface of the lead acid accumulator material with carbon element of porous character, the graphite felt material is covered as the lead accumulator of feature manufacturing.
2, the anode surface of lead acid accumulator is covered as the lead accumulator that feature is made with the carbon dust of the electronegative nano-sized carbon activator of porous character.
3, the carbonaceous material of the porous character of indication of the present invention is meant thin slice, felt material or the carbonaceous powder of the porous character of water penetration.Although normally will separate between anode and the negative electrode, yet thin slice, felt material have been filled the gap between one of anode and spacer (insulating material), covered the surface of anode with cancellous spacer (insulating material).Simultaneously, the carbonaceous powder has been filled the gap between anode and the spacer (insulating material) too, has covered the surface of anode.Result thus, cause the repairing extruding of active material on thin slice, felt material and the carbonaceous powders foot couple anode, played the effect that prevents that them from coming off, and because these thin slices, active material on felt material and carbonaceous powder and the anode, on electric is conducting, so the current potential of this part also equates with the current potential of anode.Active material on thin slice, felt material and carbonaceous powder and the anode is conducting on electric, so the current potential of this part also equates with the current potential of anode.The size of thin slice, felt material, there is no need big to a positive plate is all covered, need only several positive plates gather into folds cover just passable.Although thin slice and felt material, can utilize the carbon fibre of weaving or non-weaving moulding to come processing and fabricating, also can be with the sinter of porous character or with making through sheet material microfabrication, the band micropore, all it doesn't matter, but consider from aspects such as the ratio of hole area, flexibilities, optimal, be thin slice and the felt material made from carbon fibre.Carbonaceous material can not be interpreted as all carbonaceous materials, all bringing just as crystallization, amorphous, natural, artificial carbonaceous material can usefulness, uses but they should be made certain shape by sintering or sintering
4, as previously described, as if the surface that the carbonaceous material of porous character is covered anode, then can greatly improve the decomposing force of its charging.The quantity of battery pole plates from two on original anode, three combinations of negative electrode, is reduced to the combination of one on anode, two on negative electrode, also can obtains the above charge volume of about twice.
5, the carbonaceous powder will disperse, be suspended in the water if having electric charge.The carbonaceous powder that has negative electricity will disperse, be suspended in the electrolyte of a plumbous acid accumulator.Use this electrolyte that has negative electricity, suspension carbonaceous powder, electrolyte as a plumbous acid accumulator, if interference voltages is applied on the anode, then the carbonaceous material of porous character will produce electro-deposition at anode surface, greatly improves the performance of battery.On the other hand, uncharged powder can not produce electro-deposition, depends merely on covering physically, can not improve battery performance.About this point, the inventor is illustrated in the patent application of (patent application, No. 031050417).This electrolyte that has negative electricity, suspension carbonaceous powder, electrolyte as the carbonaceous electrodes of above-mentioned porous character, if apply interference voltages, then carbonaceous powders will be in the surface of the carbonaceous material of last porous character, inner hole and the electro-deposition that produces of anode surface.Its result than the charging of having only the battery under the carbonaceous material coverage condition, discharge performance, has further and improves.
6, on-load specific surface kind 860m
2/ 0, vesicularity 58%, the carbon activator of carbon granules footpath≤15mm adds under the situation of going in the storage battery, if replaced a part of liquid in the storage battery, the advantage that does not change liquid level of electrolyte is arranged then.Although can be in a few percent of storage battery liquid to absolutely scope internal conversion, the concentration of the acid content in electrolyte composition after changing be no more than specified concentration 40% for well.The carbonaceous concentration of suspension (water slurry of carbonaceous powder), size of current or electrolysis time during according to electrolysis change, the concentration of Shi Yonging although have no particular limits, is that controlling value is just passable with 0.1%～0.5% (weight %) substantially in the present invention.Importantly when injecting electrolyte, then add, reach necessary amount, densely then lack some and suitably replenish and get final product with rare.The carbonaceous powder weight of being added in electrolyte reaches about 0.01%～2% of electrolyte weight, and enough obvious effects are just arranged.The major technique feature:
Charge characteristic
Charging capacity can improve more than the twice.And with more than 10 times in the past current value charge, do not have tangible temperature to rise yet, therefore,, then can in the short time (1/10 time), be full of if will reach the same temperature rise of battery in the past.
Flash-over characteristic can reach the heavy-current discharge of rated value more than 2.5 times, and therefore, what storage battery can be used for common kart (550cc) and 3000cc level is the automobile of power through Diesel engine.
On, discharge voltage also can improve.
(2) if using colloid to receive fiery carbon activation more together receives, then can further improve the voltage of discharge on the basis that covers the carbonaceous felt on the anode.
(3) if on the basis that covers the carbonaceous felt on the anode, use colloidal electrolyte more together, compare, also can increase discharge capacity with independent use colloidal electrolyte.
The present invention has following effect:
1, discharge capacity increases more than the twice:
2, can quick charge:
3, can reduce the quantity of electrode, dwindle the volume of storage battery.
4, do not use harmful industrial chemicals, guarantee safe, nuisanceless.
[simple declaration of drawing]
[Fig. 1] Fig. 1 is the discharge curve of battery of the present invention, and A is the present invention, and B is a primary cell.
Claims (4)
- But 1, invention belong to a kind of high-performance high current charge-discharge, charging capacity big, in light weight, do not use harmful industrial chemicals, safety, non-harmful preparation method.It is characterized in that: its manufacturing process is the on-load carbon dust agent that covers 15mm on lead-acid battery positive plate face.And insertion porous graphite felt between positive pole and dividing plate.
- 2, be the 0.5-1% of electrolyte according to right 1 described adding carbon dosage.
- 3, the graphite felt thickness according to right 1,2 described addings is 2mm.
- 4, described according to right 1,2,3, with 2 positive plates of battery unit, 3 utmost point minus plates, deduct a positive plate, a minus plate changes the combination of 1 positive 2 minus plates into, between anode and insulating barrier, inserts the graphite felt of thick 2mm and adds carbon nanometer activator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031562965A CN1487615A (en) | 2003-09-03 | 2003-09-03 | Accumulator with nano carbon material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031562965A CN1487615A (en) | 2003-09-03 | 2003-09-03 | Accumulator with nano carbon material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1487615A true CN1487615A (en) | 2004-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031562965A Pending CN1487615A (en) | 2003-09-03 | 2003-09-03 | Accumulator with nano carbon material |
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| Country | Link |
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| CN (1) | CN1487615A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332750C (en) * | 2005-07-18 | 2007-08-22 | 华东理工大学 | Nano carbon fiber/graphite felt compound catalytic material and preparation process thereof |
| CN111710872A (en) * | 2008-11-18 | 2020-09-25 | Cps科技控股有限公司 | Electrical energy storage device |
-
2003
- 2003-09-03 CN CNA031562965A patent/CN1487615A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332750C (en) * | 2005-07-18 | 2007-08-22 | 华东理工大学 | Nano carbon fiber/graphite felt compound catalytic material and preparation process thereof |
| CN111710872A (en) * | 2008-11-18 | 2020-09-25 | Cps科技控股有限公司 | Electrical energy storage device |
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Langzhi Sci-Tech Development Co., Ltd. Shenzhen Document name: Written notice of preliminary examination of application for patent for invention |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Han Dechun Document name: Notification before expiration of term |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |