CN102097664A - Method and system for preventing lithium secondary battery from passivation - Google Patents
Method and system for preventing lithium secondary battery from passivation Download PDFInfo
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- CN102097664A CN102097664A CN2010105657755A CN201010565775A CN102097664A CN 102097664 A CN102097664 A CN 102097664A CN 2010105657755 A CN2010105657755 A CN 2010105657755A CN 201010565775 A CN201010565775 A CN 201010565775A CN 102097664 A CN102097664 A CN 102097664A
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- battery
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 104
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 238000002161 passivation Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005611 electricity Effects 0.000 claims description 36
- 230000000694 effects Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 4
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- -1 electricity Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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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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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a method and system for preventing a lithium secondary battery from passivation. The lithium secondary battery is controlled to operate for a period of time every time slot by a control circuit, wherein the lithium secondary battery can continuously discharge when in operation, thus the lithium secondary battery is activated and a passivation membrane can be prevented or avoided from being generated; the lithium secondary battery is taken as a secondary power supply for supplying power to a power system, and a primary power supply also supplies power to the power system; the lithium secondary battery is for spare use and supplies power to the power system when the primary power supply does not work; and the control circuit controls the primary power supply or the secondary power supply to supply power to the power system. By applying the method and the system for preventing the lithium secondary battery from passivation, provided by the invention, the passivation membrane can be prevented or avoided from being generated by discharging the lithium secondary battery regularly, thus the phenomenon that discharging cannot be carried out can be avoided.
Description
Technical field
The invention belongs to electronic information technical field, relate to a kind of method that prevents battery passivation, relate in particular to a kind of method that prevents the inferior battery passivation of lithium; In addition, the invention further relates to a kind of system that prevents the inferior battery passivation of lithium.
Background technology
The inferior battery of lithium is as modern intelligence instrument (mainly referring to intelligent water, electricity, gas, hotlist meter) main flow power supply.The unique advantage that intrinsic other chemical power sources of the inferior battery of lithium do not have; As high and stable operating voltage; The temperature scope of application is wide; High-energy-density; Long shelf-life; Pollution-free.But there is the shortcoming of voltage delay in lithium thionyl chloride cell.
The reason that influences voltage delay is that the back forms fine and close lithium chloride film on its anodal surface because lithium metal contacts with thionyl chloride.This tunic has slowed down the continuation fast chemical reaction between lithium and the thionyl chloride to a certain extent, because battery produces the surface that the residue of trace impurity and single sulphur is deposited on the carbon hole in discharge, thereby draw a conclusion: " period of storage is long more, and storage temperature is high more, and this tunic is thick more." because the lithium chloride film is an ion conductor, the non-conducting electronics must be after eliminating this tunic when the big again electric current of battery after storing so uses, the bigger electric current of the normal output of ability guarantees than high working voltage.Internal resistance value is bigger in abolishing the passivating film process, connects just to occur the voltage instantaneous time behind electrical appliance or the resistance and descend lower.Voltage is rising gradually after several seconds.This is normal good phenomenon, does not worry whether battery has not had electricity.This is the characteristic of the inferior battery of lithium.Be referred to as " voltage delay " in electrochemical educational circles, the degree that battery lags behind and the size of battery storage time length, storage temperature and use electric current and the water content of battery, electric liquid purity all have this confidential relation.The battery storage time is long more, and storage temperature is high more, and electric current is big more, and battery lags behind more, and load voltage is just low more.Battery lags behind and can fundamentally solve.Add some active higher additives in battery, the battery passivation film is not had, and battery is in the high activity state for a long time.It is big that the self discharge of battery just becomes.The use and the storage life of battery have just reduced.The passivating film of battery has dual character in a word, as long as the many communication and discussion of user and producer are not unconquerable problems.
In adopting the electric power system of the inferior battery of disposable lithium as stand-by power supply.Such as in the wireless gas table, dry cell is as main power supply, and the inferior battery of disposable lithium is as stand-by power supply, when dry cell power supply just often, use the electric weight of dry cell; When dry cell does not have electricity,, adopt the inferior powered battery of lithium in order to guarantee normally carrying out of wireless telecommunications.Because the inferior battery of lithium is to be contained in advance in the gas meter, flow meter,, need to select the inferior battery of the very little lithium of self discharge in order to guarantee the life-span of the inferior battery of lithium.
General conventional long-life batteries can be subjected to the influence of the distinctive passivating film of the inferior battery (lithium/thinly chloride) of lithium, and after long-term placement (or not working), use suddenly voltage can occur and reduce, and can't emit the situation of electric current, causes battery to look and loses efficacy.
The inferior battery (lithium/thinly chloride) of the lithium of long-life routine, can be subjected to the influence of its distinctive passivating film, the generation of passivating film be the obstruction that produces of electrolyte in the battery and lithium metal level its proceed the rete of chemical reaction, therefore the electric leakage certainly of the inferior battery of lithium is very low, also can be placed in the iron flask as the concentrated sulfuric acid.This cause just, the inferior battery of lithium is in long-term placement or do not work (as long-term resting state) afterwards, suddenly use transient voltage can occur and sharply reduce, can't emit the situation (all can not putting) of big electric current for a baby battery even a milliampere level electric current, cause battery to look and lost efficacy, promptly so-called " voltage delay " phenomenon.As shown in Figure 1.
" voltage delay " phenomenon especially needs the application of response fast to cause great limitation in a lot of fields, can cause the equipment shutdown maybe can't start when serious.And can't on circuit, eliminate the distinctive passivating film of the inferior battery of lithium, this be because As time goes on the influence of surrounding environment, the continuous rising of the internal resistance of cell, the influence of passivating film performance is not quite similar, in theory not fixedly way eliminated from external circuit.The existence of passivating film can make whole system can't reach desirable effect, even can look that battery lost efficacy.
In case the inferior battery passivation of lithium activates complicated.After activation is meant that battery storage produces passivating film, need be all multifactor according to passivation film thickness, storage period length and battery size etc., to the corresponding continuous discharge of carrying out corresponding time and corresponding electric current of different batteries,, recover the battery discharge ability to eliminate passivation phenomenon.
Conventional solution is, farad capacitor in parallel on the inferior battery of lithium, capacity at 100 more than the farad, make the inferior battery low discharging current of lithium can not occur being subjected to passivating film to influence the phenomenon that voltage reduces by usually.Need super farad capacitor in parallel in this solution, increased the cost of system.
Summary of the invention
Technical problem to be solved by this invention is: a kind of method that prevents the inferior battery passivation of lithium is provided, can alleviates or avoid the generation of passivating film, thus the phenomenon of avoiding tele-release not go out.
In addition, the invention still further relates to a kind of system that prevents the inferior battery passivation of lithium, can alleviate or avoid the generation of passivating film, thus the phenomenon of avoiding tele-release not go out.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of method that prevents the inferior battery passivation of lithium allows inferior battery operated a period of time of lithium by control circuit in every period, lithium just has continuous discharge when inferior battery operated, reaches the effect that activates the inferior battery of lithium, alleviates or avoid the generation of passivating film.
As a preferred embodiment of the present invention, the inferior battery of described lithium is the using electricity system power supply as second source, and the power supply of powering for described using electricity system also comprises first power supply;
The inferior battery of described lithium is the using electricity system power supply when first power supply is inoperative as standby;
Described control circuit is controlled first power supply or second source is powered to using electricity system.
As a preferred embodiment of the present invention, described using electricity system is water meter or gas meter, flow meter or ammeter.
As a preferred embodiment of the present invention, described method further comprises judging whether first power supply has the step of sufficiently high voltage, and when first power source voltage is lower than set point, the inferior battery of described control circuit control lithium is powered to using electricity system.
As a preferred embodiment of the present invention, described method further comprises the timing step, in order to calculate the idle interval of the inferior battery of lithium, when idle interval arrives setting-up time, sends signal to described control circuit.
A kind of system that prevents the inferior battery passivation of lithium, the inferior battery of described lithium is the using electricity system power supply as second source, the power supply of powering for described using electricity system also comprises first power supply; The inferior battery of described lithium is the using electricity system power supply when first power supply is inoperative as stand-by power supply;
The described system of the inferior battery passivation of lithium that prevents comprises:
-control circuit is powered to using electricity system in order to control first power supply or second source; Described control circuit allows inferior battery operated a period of time of lithium in every period, lithium just has continuous discharge when inferior battery operated, reaches the effect that activates the inferior battery of lithium, alleviates or avoid the generation of passivating film;
-the first voltage detection circuit, in order to detecting first power source voltage, when first power source voltage is lower than set point, the inferior battery of described control circuit control lithium is powered to using electricity system;
-timing circuit in order to calculate the idle interval of the inferior battery of lithium, when idle interval arrives setting-up time, sends signal to described control circuit.
Beneficial effect of the present invention is: the method and system that prevent the inferior battery passivation of lithium that the present invention proposes, pass through control circuit, allow inferior battery operated a period of time of lithium in every period, lithium just has continuous discharge when inferior battery operated, reaches the effect of activation type lithium primary cell.By the regular discharge of the inferior battery of lithium, can alleviate or avoid the generation of passivating film, thus the phenomenon of avoiding tele-release not go out.
Description of drawings
Fig. 1 is the principle schematic of the inferior cell voltage hysteresis of lithium.
Fig. 2 prevents the schematic diagram of the inferior battery passivation scheme of lithium for the present invention.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
Embodiment one
See also Fig. 2, the present invention has disclosed a kind of method that prevents the inferior battery passivation of lithium, allows inferior battery operated a period of time of lithium by control circuit in every period, and lithium just has continuous discharge when inferior battery operated, reach the effect that activates the inferior battery of lithium, alleviate or avoid the generation of passivating film.
The inferior battery of described lithium is the using electricity system power supply as second source, and described using electricity system can be water meter or gas meter, flow meter or ammeter.The power supply of powering for described using electricity system also comprises first power supply; The inferior battery of described lithium is the using electricity system power supply when first power supply is inoperative as standby; Described control circuit is controlled first power supply or second source is powered to using electricity system.
Described method further comprises judging whether first power supply has the step of sufficiently high voltage, and when first power source voltage is lower than set point, the inferior battery of described control circuit control lithium is powered to using electricity system.
In addition, described method further comprises the timing step, in order to calculate the idle interval of the inferior battery of lithium, when idle interval arrives setting-up time, sends signal to described control circuit.
More than introduced the method that the present invention prevents the inferior battery passivation of lithium, the present invention also discloses a kind of system that prevents the inferior battery passivation of lithium when disclosing said method.
See also Fig. 2, the inferior battery of described lithium is the using electricity system power supply as second source, and the power supply of powering for described using electricity system also comprises first power supply; The inferior battery of described lithium is the using electricity system power supply when first power supply is inoperative as stand-by power supply.
The present invention prevents that the system of the inferior battery passivation of lithium from comprising: control circuit, first voltage detection circuit, timing circuit.
Control circuit is powered to using electricity system in order to control first power supply or second source; Described control circuit allows inferior battery operated a period of time of lithium in every period, lithium just has continuous discharge when inferior battery operated, reaches the effect that activates the inferior battery of lithium, alleviates or avoid the generation of passivating film;
First voltage detection circuit is in order to detecting first power source voltage, and when first power source voltage is lower than set point, the inferior battery of described control circuit control lithium is powered to using electricity system;
Timing circuit when idle interval arrives setting-up time, sends signal to described control circuit in order to calculate the idle interval of the inferior battery of lithium.
In sum, the method that prevents the inferior battery passivation of lithium that the present invention proposes by control circuit, allows inferior battery operated a period of time of lithium in every period, and lithium just has continuous discharge when inferior battery operated, reaches the effect of activation type lithium primary cell.By the regular discharge of the inferior battery of lithium, can alleviate or avoid the generation of passivating film, thus the phenomenon of avoiding tele-release not go out.
Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of disclosed embodiment and change are possible, and the various parts of the replacement of embodiment and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the scope of the invention and spirit, can carry out other distortion and change here to disclosed embodiment.
Claims (6)
1. method that prevents the inferior battery passivation of lithium is characterized in that:
Allow the inferior battery operated setting-up time of lithium by control circuit in every period, lithium just has continuous discharge when inferior battery operated, reaches the effect that activates the inferior battery of lithium, alleviates or avoid the generation of passivating film.
2. the method that prevents the inferior battery passivation of lithium according to claim 1 is characterized in that:
The inferior battery of described lithium is the using electricity system power supply as second source, and the power supply of powering for described using electricity system also comprises first power supply;
The inferior battery of described lithium is the using electricity system power supply when first power supply is inoperative as stand-by power supply;
Described control circuit is controlled first power supply or second source is powered to using electricity system.
3. the method that prevents the inferior battery passivation of lithium according to claim 2 is characterized in that:
Described using electricity system is water meter or gas meter, flow meter or ammeter.
4. the method that prevents the inferior battery passivation of lithium according to claim 2 is characterized in that:
Described method further comprises judging whether first power supply has sufficiently high voltage steps, and when first power source voltage is lower than set point, the inferior battery of described control circuit control lithium is powered to using electricity system.
5. the method that prevents the inferior battery passivation of lithium according to claim 1 is characterized in that:
Described method further comprises the timing step, in order to calculate the idle interval of the inferior battery of lithium, when idle interval arrives setting-up time, sends signal to described control circuit.
6. system that prevents the inferior battery passivation of lithium is characterized in that:
The inferior battery of described lithium is the using electricity system power supply as second source, and the power supply of powering for described using electricity system also comprises first power supply; The inferior battery of described lithium is the using electricity system power supply when first power supply is inoperative as stand-by power supply;
The described system of the inferior battery passivation of lithium that prevents comprises:
-control circuit is powered to using electricity system in order to control first power supply or second source; Described control circuit allows inferior battery operated a period of time of lithium in every period, lithium just has continuous discharge when inferior battery operated, reaches the effect that activates the inferior battery of lithium, alleviates or avoid the generation of passivating film;
-the first voltage detection circuit, in order to detecting first power source voltage, when first power source voltage is lower than set point, the inferior battery of described control circuit control lithium is powered to using electricity system;
-timing circuit in order to calculate the idle interval of the inferior battery of lithium, when idle interval arrives setting-up time, sends signal to described control circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105657755A CN102097664A (en) | 2010-11-26 | 2010-11-26 | Method and system for preventing lithium secondary battery from passivation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105657755A CN102097664A (en) | 2010-11-26 | 2010-11-26 | Method and system for preventing lithium secondary battery from passivation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700902A (en) * | 2014-01-14 | 2014-04-02 | 深圳市思达仪表有限公司 | Method and device for judging and activating voltage lag of lithium thionyl chloride battery |
| CN105140576A (en) * | 2015-07-22 | 2015-12-09 | 北京嘉捷恒信能源技术有限责任公司 | System and method for preventing lithium thionyl chloride battery from being passivated |
| CN107154672A (en) * | 2017-05-08 | 2017-09-12 | 珠海市讯达科技有限公司 | A kind of electric energy-storage battery of lithium |
| CN109768294A (en) * | 2017-11-09 | 2019-05-17 | 天津市赛英斯电池有限公司 | A kind of high security prevents high temperature lithium Asia cylindrical battery passivation system |
| CN111584959A (en) * | 2020-05-22 | 2020-08-25 | 广东电网有限责任公司 | Lithium battery passivation detection and activation circuit, method and device |
| CN111736495A (en) * | 2020-02-25 | 2020-10-02 | 济南沛华信息科技有限公司 | Intelligent instrument control method and device |
| CN112736304A (en) * | 2020-12-29 | 2021-04-30 | 宜昌市蓝德光电机械有限公司 | Power supply management system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5998052A (en) * | 1997-12-02 | 1999-12-07 | Tadiran Batteries Ltd. | Composite battery and methods of forming same |
| CN2798321Y (en) * | 2005-01-10 | 2006-07-19 | 惠州亿纬电源科技有限公司 | Safety once lithium cell |
-
2010
- 2010-11-26 CN CN2010105657755A patent/CN102097664A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5998052A (en) * | 1997-12-02 | 1999-12-07 | Tadiran Batteries Ltd. | Composite battery and methods of forming same |
| CN2798321Y (en) * | 2005-01-10 | 2006-07-19 | 惠州亿纬电源科技有限公司 | Safety once lithium cell |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700902A (en) * | 2014-01-14 | 2014-04-02 | 深圳市思达仪表有限公司 | Method and device for judging and activating voltage lag of lithium thionyl chloride battery |
| CN103700902B (en) * | 2014-01-14 | 2015-10-28 | 深圳市思达仪表有限公司 | A kind of voltage delay of lithium thionyl chloride cell judges and Activiation method and device |
| CN105140576A (en) * | 2015-07-22 | 2015-12-09 | 北京嘉捷恒信能源技术有限责任公司 | System and method for preventing lithium thionyl chloride battery from being passivated |
| CN107154672A (en) * | 2017-05-08 | 2017-09-12 | 珠海市讯达科技有限公司 | A kind of electric energy-storage battery of lithium |
| CN109768294A (en) * | 2017-11-09 | 2019-05-17 | 天津市赛英斯电池有限公司 | A kind of high security prevents high temperature lithium Asia cylindrical battery passivation system |
| CN111736495A (en) * | 2020-02-25 | 2020-10-02 | 济南沛华信息科技有限公司 | Intelligent instrument control method and device |
| CN111584959A (en) * | 2020-05-22 | 2020-08-25 | 广东电网有限责任公司 | Lithium battery passivation detection and activation circuit, method and device |
| CN112736304A (en) * | 2020-12-29 | 2021-04-30 | 宜昌市蓝德光电机械有限公司 | Power supply management system |
| CN112736304B (en) * | 2020-12-29 | 2023-10-13 | 宜昌市蓝德光电机械有限公司 | Power management system |
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Application publication date: 20110615 |