CN101640283A - Maintainable lithium-ion battery and maintenance method thereof - Google Patents
Maintainable lithium-ion battery and maintenance method thereof Download PDFInfo
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- CN101640283A CN101640283A CN200910020546A CN200910020546A CN101640283A CN 101640283 A CN101640283 A CN 101640283A CN 200910020546 A CN200910020546 A CN 200910020546A CN 200910020546 A CN200910020546 A CN 200910020546A CN 101640283 A CN101640283 A CN 101640283A
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- 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
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention relates to a maintainable lithium-ion battery and a maintenance method thereof. The maintainable lithium-ion battery comprises a battery cell and a packaging bag, wherein the battery cell is sealed in the packaging bag, a positive and negative connector are left at a side edge of the packaging bag, a channel is also arranged on the lateral side of the packaging bag, and the opening which is positioned at one end of the external side of the packaging bag is sealed in an open manner. The maintenance method of the lithium-ion battery is as follows: discharging the air in the batteryby the channel, adding electrolyte for the battery, vacuuming the battery and the like. The maintainable lithium-ion battery and the maintenance method provided by the invention can effectively improve the performance of lithium-ion batteries and are beneficial for making full use of the lithium-ion battery; in addition, the operation is simple, and the cost is saved.
Description
Technical field
The present invention relates to a kind of lithium ion battery of flexible package, refer more particularly to a kind of maintainable flexible packing lithium ion battery.
Background technology
Lithium ion battery is since nineteen nineties succeeds in developing, because it has the energy height, have extended cycle life, operating voltage height, advantage such as pollution-free, now be widely used in the electronic apparatuss such as mobile phone, digital camera, notebook computer, and progressively to electric bicycle, electric automobile, high-capacity dynamical lithium-ion battery applications such as stand-by power supply are expanded.Lithium ion battery can be divided into two kinds by the battery case packaged form, and a kind of is hard packaging lithium ionic cell, usually with box hat, aluminum hull and plastic housing packing; Another kind is a flexible packing lithium ion battery, with soft aluminum-plastic composite membrane packing, also is divided into liquid flexible packing lithium ion electric pond and polymer Li-ion battery two classes usually.
The operation principle of lithium ion battery is: during battery charge, lithium ion in the positive electrode (LiMn2O4, LiFePO 4, ternary material, cobalt acid lithium etc.) takes off embedding and comes out, pass to electrolyte and process electrolyte, pass barrier film and enter into negative material (graphite etc.); During battery discharge, lithium ion takes off embedding again and comes out from negative material (graphite etc.), passes to electrolyte and process electrolyte, passes barrier film and gets back in the positive electrode (LiMn2O4, LiFePO 4, ternary material, cobalt acid lithium etc.).Along with the carrying out that lithium ion battery discharges and recharges, lithium ion needs constantly to embed in anodal and negative pole by electrolyte and deviate from, thereby electrolyte occupies important function in lithium ion battery.
High-capacity dynamical lithium-ion battery mainly contains following two characteristics: one, the capacity of cell is higher, and cost is also higher, and is also very high to performance requirement; Two, cell generally will carry out series and parallel, uses to constitute battery pack.In actual use, because conforming difference between the cell, easily there is behindhand battery in the battery pack,, when performance degradation fast, during charging voltage rise fast, discharge voltage descend problem such as fast low occur easily, thereby the use of Battery pack put in order in influence as capacity.The cell that damage in battery pack, occurs, caused by following two reasons to a great extent: one, some side reaction meetings of inside battery generation consume electrolyte, cause the electrolyte of participation cell reaction in the battery very few, thereby influence the transmission of lithium ion in battery, and then damage battery performance; Two, some side reaction meetings of producing of inside battery produce pernicious gases, thus this pernicious gas can and battery material reaction or remain in the transmission that influences lithium ion between positive electrode, negative material and the barrier film, further damage the performance of battery.
Because lithium ion battery is very responsive to moisture, a spot of water just can cause fatefulue destruction to the performance of lithium ion battery, so lithium ion battery needs sealing fully.And the sealing of traditional lithium ion battery is expendable, and therefore existing lithium ion battery can't carry out the maintenance of battery, in case battery goes wrong, can only scrap processing, especially can cause great waste to power battery pack.
Summary of the invention
Technical problem to be solved by this invention provides a kind of maintainable lithium-ion battery, and this lithium ion battery leaves openable seal channel, can safeguard during damage, is convenient to add electrolyte, get rid of pernicious gas etc. for battery.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of maintainable lithium-ion battery, comprise: battery, packaging bag, described battery is sealed in the described packaging bag, and leave positive and negative connector at the side of packaging bag, also be provided with passage on the side of the packaging bag of described battery, the opening part that is positioned at the packaging bag outside one end on the described passage adopts openable mode to seal.
The beneficial effect of this scheme is: establish openable passage at the battery side, conveniently damage or the bad lithium ion battery of result of use are safeguarded, thereby more effectively utilized lithium ion battery, help saving cost.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the opening that is positioned at the packaging bag outside one end on the described passage also is provided with hollow tube, and described hollow tube stretches out the outer end opening of described packaging bag and adopts openable mode to seal.
The beneficial effect that adopts above-mentioned further scheme is by hollow tube lithium ion battery to be safeguarded, easy operating more, need not distinctive vaccum-pumping equipment, liquid-injection equipment, wetting apparatus and can realize the maintenance of lithium ion battery, conserve batteries cost more, more help effective utilization of battery, and can realize on-line maintenance.
Further, the opening part that is positioned at an end in the packaging bag outside on the described passage is connected with air bag, and described air bag communicates with described passage, all seals for vacuum and its side in the described air bag.
The beneficial effect that adopts above-mentioned further scheme is to adopt the general mode that leaves air bag at the battery side lithium ion battery to be safeguarded not only operation being easy to realize, and can realize effective utilization of air bag, but the conserve batteries cost.
Further, described hollow tube stretches out the outer end opening of packaging bag by adaptive with it metal cap or Capsule sealing.
The beneficial effect that adopts above-mentioned further scheme is that hollow tube adopts openable mode to seal, and opens the hollow tube opening when being convenient to battery maintenance.
Further, the material of described hollow tube is identical with the material of described packaging bag internal layer.
The beneficial effect that adopts above-mentioned further scheme is that the junction sealing of hollow tube and packaging bag internal channel is tighter, prevents that air or moisture from entering in the battery by the junction of hollow tube and passage, and influences the performance of battery.
Further, the material of described air bag is identical with the internal layer material of described packaging bag.
The beneficial effect that adopts above-mentioned further scheme is that the junction sealing of the junction of air bag and packaging bag internal channel or the packaging bag side that is provided with passage is tighter, prevents that air or moisture from entering in the battery by this junction, and influences the performance of battery.
The technical scheme that the present invention solves the problems of the technologies described above also comprises as follows: a kind of method of safeguarding above-mentioned lithium ion battery may further comprise the steps:
An end opening that is positioned at the packaging bag outside on the passage described in the above-mentioned lithium ion battery is opened;
By the gas in the described passage extraction lithium ion battery, get rid of the gas in the lithium ion battery;
Add electrolyte by described passage for this lithium ion battery, and leave standstill with wetting;
By described passage is lithium ion battery vacuum-pumping;
With described channel seal.
The beneficial effect of this scheme is: adopt the passage in the lithium ion battery that lithium ion battery is safeguarded, promptly get rid of gas in the battery, add electrolyte, step such as vacuumize, can effectively improve the performance of lithium ion battery, thereby more effectively utilize lithium ion battery, help saving cost.
Further, when lithium ion battery add electrolyte and wetting after, when being lithium ion battery vacuum-pumping electrolyte unnecessary in the lithium ion battery is removed by described passage.
The beneficial effect that adopts above-mentioned further scheme is under the situation that the problem cell is needed the amount infused degree be difficult for determining, can mend a little electrolyte more, to reach the purpose of fluid infusion abundance, but can avoid the battery electrolyte inside too much, influence positive and negative electrode and the tight of barrier film contacts, thereby influence the performance of battery.
Further, the opening that is positioned at the packaging bag outside one end on the described passage also is provided with hollow tube, and this hollow tube stretches out the outer end opening of described packaging bag and adopts openable mode to seal;
During battery maintenance, open this hollow tube and stretch out the outer end opening of described packaging bag, and be that lithium ion battery is got rid of gas, added electrolyte and vacuumize by this opening, adopt openable mode to seal an end opening that stretches out the described packaging bag outside on the hollow tube at last.
The beneficial effect that adopts above-mentioned further scheme is the convenient maintenance of adopting hollow tube to realize lithium ion battery.
Further, the opening part that is positioned at an end in the packaging bag outside on the described passage is connected with air bag, and this air bag communicates with passage, all seals for vacuum and its side in the described air bag;
During battery maintenance, under dry environment, will air bag the outside cut off an opening, be that lithium ion battery is got rid of gas, added electrolyte and vacuumize by this opening, at last the opening on the described air bag is sealed.
The beneficial effect that adopts above-mentioned further scheme is that the convenient mode of air bag that adopts is safeguarded lithium ion battery.
Description of drawings
Fig. 1 is the structural representation of maintainable lithium-ion battery embodiment one of the present invention;
Fig. 2 is the block diagram of the maintaining method of maintainable lithium-ion battery embodiment one of the present invention;
Fig. 3 is the structural representation of maintainable lithium-ion battery embodiment two of the present invention;
Fig. 4 is the block diagram of the maintaining method of maintainable lithium-ion battery embodiment two of the present invention;
In the accompanying drawing, the list of parts of each label representative is as follows:
1, battery, 2, packaging bag, 3, positive and negative joint, 4, passage, 5, hollow tube, 6, metal cap, 7, air bag
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment one
As shown in Figure 1, the structural representation of a kind of maintainable lithium-ion battery embodiment one provided by the present invention, maintainable lithium-ion battery comprises: battery 1, packaging bag 2, all sealings around the packaging bag 2, the general aluminum-plastic composite membrane bag that adopts, battery 1 is sealed in the described packaging bag 2, and leave positive and negative connector 3 at the side of packaging bag, both positive and negative polarity as lithium ion battery, also be provided with passage 4 on the side of the packaging bag 2 of battery, the opening part that is positioned at the packaging bag outside one end on the passage 4 adopts openable mode to seal promptly: the opening part that is positioned at the packaging bag outside one end on passage 4 is established hollow tube 5, the material of this hollow tube 5 is identical with packaging bag 2 internal layer materials, be convenient to the junction of hollow tube 5 with packaging bag 2 upper channels 4 sealed tightly, prevent that air or moisture from entering in the battery.The end opening that hollow tube 5 stretches out packaging bag 2 outsides adopts openable mode to seal, and generally seals by metal cap 6 at this opening part, and also available Capsule replaces metal cap 6 these openings of sealing.When lithium ion battery need be safeguarded, open metal cap 6 and lithium ion battery is safeguarded by hollow tube.When lithium ion battery did not need to safeguard, this end opening of metal cap 6 sealed hollow pipes 5 got final product.
As shown in Figure 2, the block diagram of the maintaining method embodiment one of maintainable lithium-ion battery provided by the present invention may further comprise the steps:
Step 201: get rid of gas in the battery: an end opening that hollow tube 5 is stretched out packaging bag 2 outsides is opened, and is connected with vaccum-pumping equipment, and the pernicious gas in the lithium ion battery is discharged.
Step 202: add electrolyte: an end opening that hollow tube 5 is stretched out packaging bag 2 outsides is connected with liquid-injection equipment, is lithium ion cell injection electrolyte;
Step 203: after adding electrolyte lithium ion battery is left standstill with wetting;
Step 204: vacuumize and remove unnecessary electrolyte simultaneously: an end opening that hollow tube 5 is stretched out packaging bag 2 outsides is connected with vaccum-pumping equipment, lithium ion battery vacuum-pumping is extracted out electrolyte unnecessary in the lithium ion battery simultaneously, thereby guaranteed the interior no gas residue of lithium ion battery and remove unnecessary electrolyte;
Step 205: after vacuumizing end, an end opening that hollow tube 5 is stretched out packaging bag 2 outsides seals the full maintenance EO of lithium ion battery with metal cap 6.
In the process that said method carries out, employed vaccum-pumping equipment adopts general vacuum pump to realize, fluid injection adopts simple device to finish, wet processes after the fluid injection also need not special-purpose wetting apparatus and can realize evenly wetting, the service equipment cost is low, and the maintenance process of battery is also simple to operation, not only helps making full use of of lithium ion battery, more help prolonging the life-span and the result of use of lithium ion battery, and can realize on-line maintenance.
Embodiment two
As shown in Figure 3, the structural representation of a kind of maintainable lithium-ion battery embodiment two provided by the present invention, other parts of structure of lithium ion battery in the structure of maintainable lithium-ion battery and the foregoing description one are identical, different is: the opening part that is positioned at the packaging bag outside one end on passage 4 is connected with air bag 7, and this air bag 7 communicates with passage 4 and seals.When lithium ion battery need be safeguarded, under dry environment, an opening is cut off in the outside of air bag 7, finish the attended operation of lithium ion battery by this opening, after attended operation finishes, the opening of air bag 7 sealed once more get final product.
As shown in Figure 4, the block diagram of the maintaining method embodiment two of maintainable lithium-ion battery provided by the present invention may further comprise the steps:
Step 401: get rid of gas in the battery: under dry environment, cut off an opening, and be connected with vaccum-pumping equipment, the pernicious gas in the lithium ion battery is discharged by this opening in the outside of air bag 7.
Step 402: add electrolyte: the opening on the air bag 7 is connected with the liquid injection port of liquid-injection equipment, is lithium ion cell injection electrolyte;
Step 403: after adding electrolyte lithium ion battery is left standstill with wetting;
Step 404: vacuumize and remove unnecessary electrolyte simultaneously: the opening of air bag 7 is connected with vaccum-pumping equipment, to lithium ion battery vacuum-pumping, extract unnecessary electrolyte in the lithium ion battery simultaneously out, thereby guarantee the interior no gas residue of lithium ion battery and remove unnecessary electrolyte;
Step 405: after vacuumizing end, with the opening sealing of air bag 7, the full maintenance EO of lithium ion battery.
The maintaining method of above-mentioned lithium ion battery, technology is simple, can effectively improve battery performance.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. maintainable lithium-ion battery, comprise: battery, packaging bag, described battery is sealed in the described packaging bag, and leave positive and negative connector at the side of packaging bag, it is characterized in that: also be provided with passage on the side of the packaging bag of described battery, the opening part that is positioned at the packaging bag outside one end on the described passage adopts openable mode to seal.
2. lithium ion battery according to claim 1 is characterized in that, the opening that is positioned at the packaging bag outside one end on the described passage also is provided with hollow tube, and described hollow tube stretches out the outer end opening of described packaging bag and adopts openable mode to seal.
3. lithium ion battery according to claim 1 is characterized in that, the opening part that is positioned at an end in the packaging bag outside on the described passage is connected with air bag, and described air bag communicates with described passage, all seals for vacuum and its side in the described air bag.
4. lithium ion battery according to claim 2 is characterized in that, described hollow tube stretches out the outer end opening of packaging bag by adaptive with it metal cap or Capsule sealing.
5. lithium ion battery according to claim 2 is characterized in that, the material of described hollow tube is identical with the material of described packaging bag internal layer.
6. lithium ion battery according to claim 3 is characterized in that, the material of described air bag is identical with the internal layer material of described packaging bag.
7. method of safeguarding lithium ion battery as claimed in claim 1 is characterized in that may further comprise the steps:
An end opening that is positioned at the packaging bag outside on the passage described in the lithium ion battery as claimed in claim 1 is opened;
By the gas in the described passage extraction lithium ion battery, get rid of the gas in the lithium ion battery;
Add electrolyte by described passage for this lithium ion battery, and leave standstill with wetting;
By described passage is lithium ion battery vacuum-pumping;
With described channel seal.
8. method according to claim 7 is characterized in that further comprising the steps of: when lithium ion battery add electrolyte and wetting after, in the time of by described passage lithium ion battery vacuum-pumping electrolyte unnecessary in the lithium ion battery is removed.
9. according to the arbitrary described method of claim 7 to 8, it is characterized in that the opening that is positioned at the packaging bag outside one end on the described passage also is provided with hollow tube, this hollow tube stretches out the outer end opening of described packaging bag and adopts openable mode to seal;
During battery maintenance, open this hollow tube and stretch out the outer end opening of described packaging bag, and be that lithium ion battery is got rid of gas, added electrolyte and vacuumize by this opening, adopt openable mode to seal an end opening that stretches out the described packaging bag outside on the hollow tube at last.
10. according to the arbitrary described method of claim 7 to 8, it is characterized in that the opening part that is positioned at an end in the packaging bag outside on the described passage is connected with air bag, this air bag communicates with passage, all seals for vacuum and its side in the described air bag;
During battery maintenance, will air bag the outside cut off an opening, be that lithium ion battery is got rid of gas, added electrolyte and vacuumize by this opening, at last the opening on the described air bag is sealed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910020546A CN101640283A (en) | 2009-04-20 | 2009-04-20 | Maintainable lithium-ion battery and maintenance method thereof |
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| CN200910020546A CN101640283A (en) | 2009-04-20 | 2009-04-20 | Maintainable lithium-ion battery and maintenance method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105565A1 (en) * | 2009-03-17 | 2010-09-23 | 山东润峰集团新能源科技有限公司 | Method for manufacturing lithium ion battery and package bag of lithium ion battery |
| WO2010130220A1 (en) * | 2009-05-14 | 2010-11-18 | 山东润峰集团新能源科技有限公司 | Method for manufacturing lithium ion battery and encapsulating shell of lithium ion battery |
| GB2491601A (en) * | 2011-06-07 | 2012-12-12 | Leclancha S A | Drying process for cost effective production of Li-accumulators |
| CN103840217A (en) * | 2014-03-24 | 2014-06-04 | 四川剑兴锂电池有限公司 | Cylindrical flexible package lithium titanate battery |
| CN104600369A (en) * | 2015-01-12 | 2015-05-06 | 山东神工海特电子科技有限公司 | Liquid injecting, sealing and forming method of soft packaging lithium-ion battery |
| CN105092170A (en) * | 2014-05-08 | 2015-11-25 | 有量科技股份有限公司 | Sealing test method for electricity storage device |
| CN106654384A (en) * | 2017-03-02 | 2017-05-10 | 天津市捷威动力工业有限公司 | Method and device for secondary exhausting and electrolyte supplementing of soft package lithium-ion battery |
| CN109037760A (en) * | 2018-06-22 | 2018-12-18 | 王振波 | A kind of maintainable lithium-ion battery and its maintaining method |
| CN109768213A (en) * | 2018-12-27 | 2019-05-17 | 深圳市海盈科技有限公司 | A kind of liquid replenishing method of battery |
| CN110720150A (en) * | 2017-04-10 | 2020-01-21 | 美国Ab系统股份有限公司 | Secondary battery having long cycle life |
| CN114204205A (en) * | 2021-12-10 | 2022-03-18 | 远景动力技术(江苏)有限公司 | Soft package battery and heat sealing method thereof |
| CN114335783A (en) * | 2021-12-29 | 2022-04-12 | 星恒电源股份有限公司 | Method for realizing secondary service life of lithium ion battery and application |
| CN117578046A (en) * | 2023-12-27 | 2024-02-20 | 广东嘉尚新能源科技有限公司 | Soft package lithium battery and processing technology thereof |
-
2009
- 2009-04-20 CN CN200910020546A patent/CN101640283A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105565A1 (en) * | 2009-03-17 | 2010-09-23 | 山东润峰集团新能源科技有限公司 | Method for manufacturing lithium ion battery and package bag of lithium ion battery |
| WO2010130220A1 (en) * | 2009-05-14 | 2010-11-18 | 山东润峰集团新能源科技有限公司 | Method for manufacturing lithium ion battery and encapsulating shell of lithium ion battery |
| GB2491601A (en) * | 2011-06-07 | 2012-12-12 | Leclancha S A | Drying process for cost effective production of Li-accumulators |
| CN103840217A (en) * | 2014-03-24 | 2014-06-04 | 四川剑兴锂电池有限公司 | Cylindrical flexible package lithium titanate battery |
| CN103840217B (en) * | 2014-03-24 | 2016-08-31 | 四川剑兴锂电池有限公司 | A kind of cylindrical flexible package lithium titanate battery |
| CN105092170B (en) * | 2014-05-08 | 2019-03-15 | 有量科技股份有限公司 | The hermetization testing method of electric storage device |
| CN105092170A (en) * | 2014-05-08 | 2015-11-25 | 有量科技股份有限公司 | Sealing test method for electricity storage device |
| CN104600369A (en) * | 2015-01-12 | 2015-05-06 | 山东神工海特电子科技有限公司 | Liquid injecting, sealing and forming method of soft packaging lithium-ion battery |
| CN106654384A (en) * | 2017-03-02 | 2017-05-10 | 天津市捷威动力工业有限公司 | Method and device for secondary exhausting and electrolyte supplementing of soft package lithium-ion battery |
| CN106654384B (en) * | 2017-03-02 | 2019-03-01 | 天津市捷威动力工业有限公司 | A kind of method and apparatus of soft package lithium battery secondary exhaust and supplement electrolyte |
| CN110720150A (en) * | 2017-04-10 | 2020-01-21 | 美国Ab系统股份有限公司 | Secondary battery having long cycle life |
| CN109037760A (en) * | 2018-06-22 | 2018-12-18 | 王振波 | A kind of maintainable lithium-ion battery and its maintaining method |
| CN109768213A (en) * | 2018-12-27 | 2019-05-17 | 深圳市海盈科技有限公司 | A kind of liquid replenishing method of battery |
| CN114204205A (en) * | 2021-12-10 | 2022-03-18 | 远景动力技术(江苏)有限公司 | Soft package battery and heat sealing method thereof |
| CN114335783A (en) * | 2021-12-29 | 2022-04-12 | 星恒电源股份有限公司 | Method for realizing secondary service life of lithium ion battery and application |
| CN114335783B (en) * | 2021-12-29 | 2024-03-29 | 星恒电源股份有限公司 | Method for realizing secondary service life of lithium ion battery and application |
| CN117578046A (en) * | 2023-12-27 | 2024-02-20 | 广东嘉尚新能源科技有限公司 | Soft package lithium battery and processing technology thereof |
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Open date: 20100203 |