CN101714663B - Automatic formation and separation method of nickel-metal hydride batteries - Google Patents
Automatic formation and separation method of nickel-metal hydride batteries Download PDFInfo
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- CN101714663B CN101714663B CN2009101940155A CN200910194015A CN101714663B CN 101714663 B CN101714663 B CN 101714663B CN 2009101940155 A CN2009101940155 A CN 2009101940155A CN 200910194015 A CN200910194015 A CN 200910194015A CN 101714663 B CN101714663 B CN 101714663B
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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 invention relates to an automatic formation and separation method of nickel-metal hydride batteries. The automatic formation and separation method of nickel-metal hydride batteries comprises the following steps of: (1) self-adapting charging process: charging the batteries in the process; (2) constant current discharging process: discharging the charged batteries by constant current and then entering a third step after finishing discharging; (3) separation process: adopting two steps to carry out separation, wherein the first step of separation is carried out according to voltage changes V of each battery in the step (1); the voltage change V is Vt-V0, Vt is a voltage value after the batteries are charged, and V0 is a voltage value before the batteries are charged; the second step of separation is further thinning separation based on a separation result of the first step and is carried out according to a battery capacity value Q measured in the first step; Q is sigma delta f(i)*deltat; and f(i) expresses an average current value within the time of deltaT. The separation is exact by adopting the method.
Description
Technical field
The present invention relates to the Ni-MH battery production field, particularly a kind of automatic formation and separation method of nickel-metal hydride batteries.
Background technology
Ni-MH battery generally also is called secondary cell owing to can repeat to discharge and recharge use, and it can be used as the electrokinetic cell of automobile.Power battery pack requires the consistency of every battery in the battery pack, and this consistency mainly is meant the speed that discharges and recharges and the battery capacity of battery.Present stage, battery producer continued to use the traditional hand operating type always, adopted the manual work work of feeding up and down, the artificial separation battery, and labour intensity is big, and human error is obvious; Also there were many producers to improve formation device in recent years; Adopting host computer to gather battery changes into signal and carries out artificial separation then with the information that shows battery; But the host computer algorithm is simple in the method; Only need recording cell charging interval and discharge time can be expressed battery capacity according to the constant current value of initial typing, can not reflect the inside battery chemical change by true and accurate, the formation process of controlling secondary cell with the time causes occurring the inconsistency that battery changes into; Artificial separation simultaneously also will increase human factor in battery sorting.Secondary cell changes into present situation: in the formation process, the charge and discharge electric current is a steady state value, with charge and discharge time representation battery capacity value; For example: set secondary cell and discharge and recharge with the 0.2C electric current; Charging interval transfers static condition to until leaving standstill completion after reaching capacity requirement, carries out the discharge operation; With 0.2C discharge, battery capacity used time T when being discharged to 1V is represented.After battery discharge finishes, according to the difference of T discharge time, with the interval manual sorting task of accomplishing of certain sorting.
In view of secondary cell changes into these problems that occur in the link, this method has been improved above-mentioned shortcoming on the basis of adopting new chemical synthesis technology, has developed a cover automation and has become method for separating.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of nothing to cross and change into and the accurate automatic formation and separation method of nickel-metal hydride batteries of sorting.
To achieve these goals, adopt following technical scheme: automatic formation and separation method of nickel-metal hydride batteries comprises:
The first, the self adaptation charging process is charged to battery in this process, and the electric current of this charging process and voltage are not all done control, and battery charge stops this self adaptation charging process after accomplishing automatically;
The second, the constant-current discharge process, in this process, the battery that charges electricity discharges with constant current, and discharge finishes the back and got into for the 3rd step;
The 3rd, assorting room, this assorting room adopt two step sortings, and first step sorting is to carry out sorting, change in voltage V=V according to each battery change in voltage V in the above-mentioned first step
t-V
0V
tBe the magnitude of voltage after the battery charge completion, V
0Be the magnitude of voltage before the battery charge; The second step sorting is the separation results enterprising step refining sorting in basis in the first step; The second step sorting is carried out sorting according to each battery measured battery capacity value Q in carrying out above-mentioned steps one; Q=∑ Δ f (i) * Δ t, the current average of Δ f (i) in the expression Δ t time.
The above-mentioned method for separating that changes into has changed the former method that is capacity if having time on the basis of innovation traditional handicraft, more monitor out accurately the battery real time capacity through the integral algorithm of host computer processing signals, has guaranteed the secondary cell consistency.In addition, through the calculating that cell voltage is changed, can further improve the coherence request of power battery pack.
Embodiment
Automatic formation and separation method of nickel-metal hydride batteries comprises:
The first, the self adaptation charging process is charged to battery in this process, and the electric current of this charging process and voltage are not all done control, and battery charge stops this self adaptation charging process after accomplishing automatically; Change original constant current charge in this process, and set the mode in unified charging interval, and change the self adaptation charging into, guarantee the formation effect of each battery, the defective of effectively avoiding changing into He not changing into.
The second, set battery one 0.2C constant-current discharge, in this process, the battery that charges electricity discharges with constant current, and discharge finishes the back and got into for the 3rd step;
The 3rd, assorting room, this assorting room adopt two step sortings, and first step sorting is to carry out sorting, change in voltage V=V according to each battery change in voltage V in the above-mentioned first step
t-V
0V
tBe the magnitude of voltage after the battery charge completion, V
0Be the magnitude of voltage before the battery charge; The second step sorting is the separation results enterprising step refining sorting in basis in the first step; The second step sorting is carried out sorting according to each battery measured battery capacity value Q in carrying out above-mentioned steps one; Q=∑ Δ f (i) * Δ t, the current average of Δ f (i) in the expression Δ t time.Adopt two step sortings, make separation results more accurate.
With the standard of the characteristic in the formation process, can improve the consistency of battery pack as battery group.Can replace original manual work mode, adopt PC control PLC to carry out automatic charge, assorting room, liberate the labour, reduce the human factor of sorting battery, improve the divided battery consistency.Realized circulating working mode, every layer all can be used as one independently the unit work independently and do not influence other layers, can directly deliver to letter sorting after changing into completion.
Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only.Do not break away from any modification or the local replacement of spirit and scope of the invention, should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. automatic formation and separation method of nickel-metal hydride batteries is characterized in that, comprising:
The first, the self adaptation charging process is charged to battery in this process, and the electric current of this charging process and voltage are not all done control, and battery charge stops this self adaptation charging process after accomplishing automatically;
The second, the constant-current discharge process, in this process, the battery that charges electricity discharges with constant current, and discharge finishes the back and got into for the 3rd step;
The 3rd, assorting room, this assorting room adopt two step sortings, and first step sorting is to carry out sorting, change in voltage V=V according to each battery change in voltage V in the above-mentioned first step
t-V
0V
tBe the magnitude of voltage after the battery charge completion, V
0Be the magnitude of voltage before the battery charge; The second step sorting is the separation results enterprising step refining sorting in basis in the first step; The second step sorting is carried out sorting according to each battery measured battery capacity value Q in carrying out above-mentioned steps one; Q=∑ Δ f (i) * Δ t, the current average of Δ f (i) in the expression Δ t time.
2. automatic formation and separation method of nickel-metal hydride batteries according to claim 1 is characterized in that, the constant-current discharge electric current in said second step is 0.2C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101940155A CN101714663B (en) | 2009-11-19 | 2009-11-19 | Automatic formation and separation method of nickel-metal hydride batteries |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101940155A CN101714663B (en) | 2009-11-19 | 2009-11-19 | Automatic formation and separation method of nickel-metal hydride batteries |
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| Publication Number | Publication Date |
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| CN101714663A CN101714663A (en) | 2010-05-26 |
| CN101714663B true CN101714663B (en) | 2012-02-22 |
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| CN2009101940155A Expired - Fee Related CN101714663B (en) | 2009-11-19 | 2009-11-19 | Automatic formation and separation method of nickel-metal hydride batteries |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343334B (en) * | 2011-09-28 | 2014-01-08 | 力神迈尔斯动力电池系统有限公司 | Dynamic sorting method and system for power batteries |
| CN103128061B (en) * | 2011-12-05 | 2015-04-08 | 哈尔滨智木科技有限公司 | Method and equipment of sorting dynamic consistency of power batteries |
| CN102553838B (en) * | 2012-02-15 | 2014-05-07 | 中国电力科学研究院 | Battery sorting method based on alternating-current impedance spectrum |
| CN102736034B (en) * | 2012-06-29 | 2015-02-18 | 力神迈尔斯动力电池系统有限公司 | Method for detecting internal states of lithium ion batteries and nondestructively screening lithium ion batteries |
| CN103894350B (en) * | 2014-03-26 | 2016-08-24 | 山东精工电子科技有限公司 | The partial volume screening method for group matching of cylindrical lithium battery |
| CN115007503B (en) * | 2022-07-19 | 2023-07-28 | 湖北亿纬动力有限公司 | Cell sorting method, device, equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489237A (en) * | 2002-10-11 | 2004-04-14 | 北京有色金属研究总院 | Secondary cell sorting method |
| CN101286580A (en) * | 2007-12-25 | 2008-10-15 | 福建省电力试验研究院 | Method of making sets of valve controlling type accumulator |
| CN101288871A (en) * | 2007-04-17 | 2008-10-22 | 哈尔滨理工大学 | Power battery multi-impulse classification method |
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2009
- 2009-11-19 CN CN2009101940155A patent/CN101714663B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489237A (en) * | 2002-10-11 | 2004-04-14 | 北京有色金属研究总院 | Secondary cell sorting method |
| CN101288871A (en) * | 2007-04-17 | 2008-10-22 | 哈尔滨理工大学 | Power battery multi-impulse classification method |
| CN101286580A (en) * | 2007-12-25 | 2008-10-15 | 福建省电力试验研究院 | Method of making sets of valve controlling type accumulator |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平10-40967A 1998.02.13 |
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