CN1117409C - Method for reducing internal resisance of rechargeable batteries - Google Patents
Method for reducing internal resisance of rechargeable batteries Download PDFInfo
- Publication number
- CN1117409C CN1117409C CN96195100A CN96195100A CN1117409C CN 1117409 C CN1117409 C CN 1117409C CN 96195100 A CN96195100 A CN 96195100A CN 96195100 A CN96195100 A CN 96195100A CN 1117409 C CN1117409 C CN 1117409C
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- Prior art keywords
- storage battery
- power supply
- battery
- voltage
- storage
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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
Abstract
The present invention relates to a method for reducing the internal resistance (Ri) of a rechargeable battery, particularly to of a nickel-cadmium battery. In the method, two poles (+/-) of the battery are connected with a power supply; the electric energy outputted by the power supply is at least 40 times of the product of a short circuit current value (I<k>) and a rated voltage value of an untreated battery; the electric energy is used for charging the battery in preset lasting time.
Description
The present invention relates to a kind of chargeable storage that reduces, especially the method for the internal resistance of cadmium-nickel storage cell, the invention still further relates to the storage battery (nickel metal hydride batteries, lithium-ions battery etc.) that this method is used for other kind, the invention still further relates to the storage battery that can utilize method of the present invention to obtain.
The method that the capacity of different raising chargeable storages is arranged in the prior art.The principle of most methods is: in the charging process of storage battery, and last and amount control charging current or charging voltage from the time.Discharger by means of special use can guarantee to make it to discharge fully before storage battery is charged again in addition.
Yet above-mentioned common ground for the method for battery recharge and mode is that promptly storage battery all is to charge with lower voltage and current.
The objective of the invention is to, improve the capacity of electric storage means self.
For this reason, the present invention has utilized surprising discovery,, can reduce the interior resistance of storage battery that is.
According to the present invention, the electrode of storage battery is connected with a power supply, the electric energy of this power supply output is at least 40 times of product of the short-circuit current value of a undressed storage battery and its load voltage value.According to a preferred implementing form of the present invention, this power supply is a direct current power supply, and its positive pole links to each other with the anode of storage battery, and its negative pole links to each other with the negative electrode of storage battery.Also can the positive pole of power supply is connected with the negative electrode of storage battery, and its negative pole be connected with the anode of storage battery two umpolungs.In addition, this power supply also can be an AC power.
According to the present invention, this power supply is connected 1 millisecond at least with storage battery.
Also can connect and cut off described power supply repeatedly, repeatedly storage battery is presented with electric energy.
The electric current of described power supply is preferably 1.5 times of storage battery short circuit current, and its voltage is preferably 30 times of storage battery rated voltage.For improving effect of the present invention, make this power supply can export 1.5 times of electric currents of short circuit current of storage battery and 40 times of voltages of storage battery rated voltage.According to the form of implementation of present the best, this power supply has six independent batteries, and its electric current is 60 times of storage battery short circuit current, and its voltage is 40 times of storage battery rated voltage.For a kind of rated voltage is that 7.2V and short circuit current are about for the cadmium-nickel storage cell of 150A, and the voltage of this DC power supply is 300V, and its electric current is 10KA.
Above-mentioned power supply preferably is connected 1 microsecond with storage battery.
For strengthening the effect of required minimizing internal resistance, can improve power source voltage or electric current, as the problem that storage battery generates heat occurs in processing procedure, can correspondingly cool off it.
The above-mentioned type of cooling preferably immerses storage battery (oil, freon, liquid nitrogen or analog) in a kind of liquid.
Above-mentioned power supply preferably is connected 2 milliseconds at least with storage battery.For avoiding storage battery undesirable or bad heating to occur.Except adopting aforesaid cooling means, can also repeat alternately break-make power supply, so that will be divided into a plurality of continuous time sections to the processing of storage battery.In 1 microsecond to 2.5 millisecond, adopt 2 to 200 pulses to carry out burst process respectively to storage battery and also can reach result required for the present invention.
Can be according to the method described above according to the present invention (perhaps will before the synthetic batteries of a plurality of independent batteries) each independent battery unit of storage battery is handled, also can after a plurality of independent secondary battery units are combined into a batteries, handle it again.Under latter event, it is parallel connection or series connection that electric current and/or voltage will be looked the storage battery of being made up of each secondary battery unit, does corresponding raising according to the quantity of these battery units.
If the storage battery that newly dispatches from the factory is handled according to method of the present invention, or to those the charging and discharge time below 10 times, preferably 2 to 3 times storage battery is handled, and can obtain extraordinary effect.
The invention still further relates to a kind of storage battery, especially a kind of cadmium-nickel storage cell adopts said method or its modification can obtain the storage battery that this internal resistance has reduced.
At last, the invention still further relates to a kind of power supply that is suitable for implementing method of the present invention.For necessary high electric current and high voltage is provided at required time interval, this power supply should have capacitive means, selects its electric capacity and resistance to pressure like this, makes it provide electric energy (at short time section) for storage battery.Because capacitive means C discharges definitely by a resistance R (being the internal resistance of storage battery here), can be simply and the time determine to be input to the energy (timeconstant=RC) of storage battery definitely.In addition, can also directly from electrical network, obtain electric energy by suitable semiconductor switch and a suitable control circuit.
Below will further specify other characteristics of the present invention by preferred embodiment present shown in the accompanying drawing, advantage and feature, in the accompanying drawing:
Fig. 1 is the circuit theory diagrams that storage battery is connected with a power supply;
Fig. 2 is the schematic circuit that is used to implement the power supply of the present invention of the inventive method.
As shown in Figure 1, a rated voltage is that the cadmium-nickel storage cell unit of 1.2V links to each other with a power supply, and the exportable magnitude of voltage of this power supply is at least 42V, and its current value is at least storage battery short circuit current I
k1.5 times.Experiment shows, is 60V at direct voltage, and when direct current was 225A, when this electric energy (13.5KW) being applied on the nickel-cadmium cell unit about 2 milliseconds, the effect of the minimizing internal resistance of cell of the present invention had just embodied.According at present preferred another form of implementation, 300V DC power supply and 10KA direct current are applied on the nickel-cadmium cell unit 2 milliseconds.
Fig. 2 illustrates a kind of possible circuit that is used to implement the inventive method.Handle required electric current of storage battery and required high pressure for producing, the electric capacity of the capacitive means among the figure is about 80 μ F to about 250mF (preferably being about 7mF), and it is withstand voltage to be about 500V.The switch S that connects cadmium-nickel storage cell and capacitive means C can make manual power switch or make electronic controlled semiconductor power switch, can be by a rectifier by electrical network to capacitor C charge (herein no longer detailed description).
According to the present invention, be after a cadmium-nickel storage cell applies 300V direct voltage and 10KA direct current and continues 0.2 to 5 millisecond, in use thereafter, when the discharging current of this storage battery is 20A, its output voltage 20mV (battery unit that each is independent) that can raise.This internal resistance Ri that is equivalent to storage battery has reduced 1m Ω.
Can change method of the present invention (with higher electric current, higher voltage, longer time or storage battery is applied electric energy) in the above described manner with pulse mode.These changes all are included in the design of the present invention.Also available other power supply replaces circuit of the present invention (Fig. 2), as long as this power supply provides electric energy with the form that the present invention describes, this does not break away from design of the present invention.
Claims (12)
1. method that is used to reduce the internal resistance (Ri) of chargeable storage, wherein this storage battery be new product or accepted to charge, the storage battery of discharge operation below 10 times, at the two poles of the earth of storage battery (+/-) connecting a power supply, the electric energy of this power supply output is at least the short-circuit current value (I of storage battery
k) with 40 times of the product of its load voltage value, and this electric energy is applied on the described storage battery with a predetermined time duration.
2. method according to claim 1, wherein said power supply are a direct current power supply, and its positive pole (+) is connected with the anode of storage battery, and its negative pole (-) is connected with the negative electrode of storage battery.
3. method according to claim 1, wherein said power supply are a direct current voltage source, and its positive pole links to each other with the negative electrode of storage battery, and its negative pole links to each other with the anode of storage battery.
4. method according to claim 1, wherein said power supply are the AC power with two output interfaces, and the one end links to each other with the positive pole of storage battery, and its other end links to each other with the negative electrode of storage battery.
5. according to each described method in the claim 1 to 4, wherein said power supply is connected at least one microsecond on the storage battery, is used to charge in batteries.
6. method according to claim 5, wherein said power supply are alternately connected repeatedly and are cut off.
7. according to each described method in the claim 1 to 4, it is characterized in that the electric current of described power supply output is the short circuit current (I of described storage battery at least
k) 1.5 times, its output voltage is about 30 to 40 times of storage battery rated voltage.
8. method according to claim 7, wherein said power supply is connected 1 microsecond with described storage battery at least, so that be charge in batteries.
9. method according to claim 8 is characterized in that, described power supply repeatedly, alternately be switched on and cut off.
10. method according to claim 1 is wherein handled separately each unit in the storage battery of being made up of a plurality of battery units.
11. method according to claim 1, a plurality of battery units of processing wherein in parallel, the electric current of wherein said power supply is with the corresponding raising of quantity of battery unit.
12. method according to claim 1 is wherein handled a plurality of battery units with the series connection form, according to the described power source voltage of the corresponding raising of quantity of battery unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96195100A CN1117409C (en) | 1996-04-24 | 1996-04-24 | Method for reducing internal resisance of rechargeable batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96195100A CN1117409C (en) | 1996-04-24 | 1996-04-24 | Method for reducing internal resisance of rechargeable batteries |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1189248A CN1189248A (en) | 1998-07-29 |
| CN1117409C true CN1117409C (en) | 2003-08-06 |
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ID=5128991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96195100A Expired - Lifetime CN1117409C (en) | 1996-04-24 | 1996-04-24 | Method for reducing internal resisance of rechargeable batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1117409C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670478A (en) * | 1992-08-20 | 1994-03-11 | Ebatoron:Kk | Method for charging battery by spike-like wave and apparatus thereof |
| CN2178016Y (en) * | 1993-11-19 | 1994-09-21 | 何富贵 | Charger |
| CN1094191A (en) * | 1993-03-17 | 1994-10-26 | 乌利·罗特蒙特 | Make the method and the device of the regeneration of voltage source of disposable battery |
-
1996
- 1996-04-24 CN CN96195100A patent/CN1117409C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670478A (en) * | 1992-08-20 | 1994-03-11 | Ebatoron:Kk | Method for charging battery by spike-like wave and apparatus thereof |
| CN1094191A (en) * | 1993-03-17 | 1994-10-26 | 乌利·罗特蒙特 | Make the method and the device of the regeneration of voltage source of disposable battery |
| CN2178016Y (en) * | 1993-11-19 | 1994-09-21 | 何富贵 | Charger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1189248A (en) | 1998-07-29 |
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| C53 | Correction of patent for invention or patent application | ||
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Free format text: CORRECT: APPLICANT; FROM: GM RACING MODEL RACING CARS SALES GMBH TO: SANYO ELECTRIC CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Osaka Japan Applicant after: Sanyo Electric Co., Ltd. Address before: German roots Applicant before: GM Racing Modellsportvertrieb GmbH |
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