CN107579295A - A kind of negative pole is to the restorative procedure of shell A-battery and its structure of prosthetic device - Google Patents
A kind of negative pole is to the restorative procedure of shell A-battery and its structure of prosthetic device Download PDFInfo
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- CN107579295A CN107579295A CN201710707542.6A CN201710707542A CN107579295A CN 107579295 A CN107579295 A CN 107579295A CN 201710707542 A CN201710707542 A CN 201710707542A CN 107579295 A CN107579295 A CN 107579295A
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- Prior art keywords
- battery
- shell
- negative pole
- flow deflector
- cover plate
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- 238000000034 method Methods 0.000 title claims abstract description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 31
- 239000011257 shell material Substances 0.000 claims description 70
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 11
- 229910001416 lithium ion Inorganic materials 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000003792 electrolyte Substances 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 4
- 229910032387 LiCoO2 Inorganic materials 0.000 claims description 3
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 3
- 229910014776 LiMn2O2 Inorganic materials 0.000 claims description 3
- 229910013410 LiNixCoyAlzO2 Inorganic materials 0.000 claims description 3
- 229910013467 LiNixCoyMnzO2 Inorganic materials 0.000 claims description 3
- 239000011258 core-shell material Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 229910021385 hard carbon Inorganic materials 0.000 claims description 3
- 239000007774 positive electrode material Substances 0.000 claims description 3
- 229910021384 soft carbon Inorganic materials 0.000 claims description 3
- -1 Delanium Substances 0.000 claims description 2
- 239000002931 mesocarbon microbead Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000011806 microball Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- 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
Abstract
A kind of restorative procedure the invention discloses negative pole to shell A-battery, one, first using flow deflector(3)By to the positive terminal and battery container of shell low pressure lithium battery(1)Connect;Two, then the battery after connection is charged;Three, then carry out discharge and recharge;Four, the battery repaired.A kind of structure the invention also discloses negative pole to the prosthetic device of shell A-battery, positive terminal(5)Bottom be provided with positive pole fixed seat(7), positive terminal(5)Pass through positive pole fixed seat(7)Installed in upper cover plate(2)Upper positive terminal(5)On be installed with flow deflector(3), flow deflector(3)Left side and right side extend downward vertically after form left contact chip(10)With right contact chip(11), flow deflector(3)Pass on left left contact chip(10)With battery container(1)Upper cover plate(2)Contact, flow deflector(3)Right side pass through right contact chip(11)With battery container(1)Upper cover plate(2)Contact.
Description
Technical field
The present invention relates to a kind of negative pole to the restorative procedure of shell A-battery and its structure of prosthetic device.
Background technology
Lithium ion battery is because its energy density is high, have extended cycle life, advantages of environment protection is applied to number extensively
The fields such as product, electric automobile, energy storage, aviation, it is even more to quickly grow in recent years especially in electric automobile industry.With lithium
The extensive application of ion battery, more and more people have been obtained the problems such as uniformity, yield control in lithium ion battery production process
Concern.Because equipment, frock and the reasons such as battery structure part insulating properties are relatively low cause negative pole in lithium ion battery production process
There is electron channel with battery container, in battery forming process, because housing current potential is low, cause lithium to be separated out in battery container inwall, shape
Into negative pole to shell A-battery.Lithium is analysed on housing can make battery life quickly decline drop, lithium and the housing formation aluminium alloy of precipitation, lead
Housing is caused gradually to corrode, by housing eating thrown when serious.
The content of the invention
The invention provides a kind of negative pole to the restorative procedure of shell A-battery and its structure of prosthetic device, it can be incited somebody to action
Most of negative pole is repaired use to shell A-battery, and operation is simple, can be repaired rapidly to shell A-battery, and energy
Effectively confirm that repairing battery will not occur to shell low pressure event again, so as to advantageously reduce the fraction defective of resultant battery.
Present invention employs following technical scheme:A kind of restorative procedure to negative pole to shell A-battery, it includes following
Step:Step 1, the positive terminal of shell low pressure lithium battery will be connected with battery container using flow deflector first;Step 2,
Then the battery after connection is charged, the lithium that battery container inwall has been deposited completely or partially aoxidizes, and weighs after oxidation
It is new into the lithium ion used as circulating and reversible in electrolyte, when analysed on housing lithium it is more when, it is necessary to which repeatedly charging can will
All oxidation returns in battery analysed lithium;Step 3, then discharged, need to disconnect flow deflector in discharge process, prevent
Lithium ion is restored in battery container inwall again in discharge process;Step 4, the battery repaired, it need to pass through 1~5 time
Discharge and recharge confirms that battery will not occur negative pole again to shell low pressure event.
Described is cylindrical type, square or rib type aluminum-shell lithium battery to shell low pressure lithium battery.
The positive electrode active materials to shell low pressure lithium battery of step 1 of the present invention are LiFePO4、LiCoO2、LiMn2O2、
LiNixCoyMnzO2Or LiNixCoyAlzO2One or both of formation mixed above, wherein 0<x、y、z<1, x+y+z=1,
Negative active core-shell material is the formation mixed above of one or both of graphite type material or Si sills, and shell low pressure lithium battery is born
Extremely it is to shell voltage range:0.1V < detection voltage < 2V.Graphite type material is that native graphite, Delanium, intermediate-phase carbon are micro-
Ball, soft carbon or hard carbon.Described flow deflector is conductive material, and conductive material is copper sheet, aluminium flake, nickel sheet or steel disc.Present invention step
Charging current is 0.1I in rapid two1~5I1(note:I1For 1 hour rate discharge current), after charging to blanking voltage, turn constant-voltage charge
To electric current 0.01I1~0.5I1When charge cutoff.
A kind of structure the invention also discloses negative pole to shell A-battery prosthetic device, it includes negative pole to shell low voltage lithium
The battery container of battery, positive terminal and negative terminal are provided with the upper cover plate on the top of battery container, the bottom of positive terminal is provided with
Positive pole fixed seat, positive terminal are arranged on upper cover plate by positive pole fixed seat, and negative terminal is arranged on upper lid by negative pole fixed seat
On plate, flow deflector is installed with positive terminal, shape horizontal-extending to the left again after the left side of flow deflector extends downward vertically
Into left contact chip, the right side of flow deflector is horizontal-extending to the right again after extending downward vertically to form right contact chip, a left side for flow deflector
Side is contacted by left contact chip with the upper cover plate of battery container, and the right side of flow deflector passes through right contact chip and the upper lid of battery container
Plate contacts.
Described flow deflector is fixedly mounted on positive terminal by screw.Described flow deflector is conductive material, conduction material
Expect for copper sheet, aluminium flake, nickel sheet or steel disc.Felt pad is provided between described positive pole fixed seat and upper cover plate.
The invention has the advantages that:After employing above technical scheme, the present invention is directed to lithium ion battery with aluminum shell
Cause battery of the negative pole to shell low pressure because production is abnormal, battery positive pole and battery container are connected using flow deflector, led to
Cross using suitable charging/discharging thereof, will be reentered after lithium that inner walls have deposited completely or partially oxidation in electrolyte into
The lithium ion used for circulating and reversible.The present invention, by the processing of this method, most of will can be born after Battery formation terminates
Use extremely is repaired to shell A-battery.The present invention is by the way that flow deflector will be connected between positive pole and battery container, using conjunction
Suitable charging method, negative pole can be quickly repaired to the unqualified battery of shell low pressure, and can effectively confirm that reparation battery will not be again
It is secondary to occur to shell low pressure event, qualification rate is repaired up to more than 90%, can effectively reduce the fraction defective of resultant battery.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention to negative pole to the structure of shell A-battery prosthetic device.
Embodiment
The invention discloses a kind of restorative procedure to negative pole to shell A-battery, it comprises the following steps:Step 1, it is first
The positive terminal of shell low pressure lithium battery will first be connected with battery container 1 using flow deflector 3, flow deflector is conductive material, is led
Electric material is copper sheet, aluminium flake, nickel sheet or steel disc.Positive electrode active materials to shell low pressure lithium battery are LiFePO4、LiCoO2、
LiMn2O2、LiNixCoyMnzO2Or LiNixCoyAlzO2One or both of formation mixed above, wherein 0<x、y、z<1, x
+y+z=1;Negative active core-shell material is the formation mixed above of one or both of graphite type material or Si sills, graphite-like material
Expect for native graphite, Delanium, MCMB, soft carbon or hard carbon, to shell low pressure cathode of lithium battery to shell voltage range
For:0.1V < detection voltage < 2V.Step 2, then the battery after connection is charged, so that by the surface of battery container 1
The lithium of deposition completely or partially aoxidizes, and reenters the lithium ion used in electrolyte as circulating and reversible after oxidation, works as shell
, it is necessary to which repeatedly charging can all oxidation be returned in battery by analysed lithium when analysis lithium is more on body, charging current is in step 2
0.1I1~5I1(Note:I1For 1 hour rate discharge current), after charging to blanking voltage, turn constant-voltage charge to electric current 0.01I1~
0.5I1When charging cut.Step 3, then discharged, need to disconnect flow deflector 3 in discharge process, prevent in discharge process
Lithium ion is reduced analysis in the inwall of battery container 1 again.Step 4, the battery repaired, it need to be confirmed by 1~5 discharge and recharge
Battery will not occur negative pole again to shell low pressure event.Of the present invention is cylindrical type, square or rib to shell low pressure lithium battery
Type aluminum-shell lithium battery.
In Fig. 1, the structure the invention also discloses a kind of negative pole to shell A-battery prosthetic device, it includes shell low pressure
The battery container 1 of lithium battery, positive terminal 5 and negative terminal 6 are provided with the upper cover plate 2 on the top of battery container 1, positive terminal 5
Bottom is provided with positive pole fixed seat 7, and positive terminal 5 is arranged on upper cover plate 2 by positive pole fixed seat 7, and negative terminal 6 is fixed by negative pole
Seat 9 is arranged on upper cover plate 2, and flow deflector 3 is installed with positive terminal 5, and described flow deflector 3 is fixed by screw 4 pacifies
On positive terminal, the left side of flow deflector 3 is horizontal-extending to the left again after extending downward vertically to form left contact chip 10, flow deflector
3 right side is horizontal-extending to the right again after extending downward vertically to form right contact chip 11, and flow deflector 3 passes on left left contact chip
10 are contacted with the upper cover plate 2 of battery container 1, and the right side of flow deflector 3 is connect by the upper cover plate 2 of right contact chip 11 and battery container 1
Touch, described flow deflector 3 is conductive material, and conductive material is copper sheet, aluminium flake, nickel sheet or steel disc, described positive pole fixed seat 7
Felt pad 8 is provided between upper cover plate 2.
The present invention is further illustrated by the examples that follow:
Embodiment one:In Fig. 1, negative pole carries out checking tests to 10, battery of the shell voltage range in 0.10V~0.70V, bears
1 extremely is shown in Table to shell voltage.
Embodiment one concretely comprises the following steps:
1st, installation fixation is carried out by screw 4 after flow deflector 3 is placed;
2nd, with 0.5I1After electric current charges to blanking voltage, turn constant-voltage charge to electric current and be less than 0.03I1When charge cutoff;
3rd, screw 4 is unclamped, after flow deflector 3 is rotated by 90 °, then screw 4 is fastened;
4th, with 1I1Current discharge is to blanking voltage;
5th, 1~4 step 1~5 time are circulated;
6th, with 1I1After electric current charges to blanking voltage, turn constant-voltage charge to electric current and be less than 0.03I1When charge cutoff, with 1I1Electric current
It is discharged to blanking voltage;
7th, after circulating 6 step 1~5 time, with 0.5I1Electric current adjusts battery electric quantity to 20%~80%SOC;
8th, negative pole is measured to shell voltage, the results are shown in Table 1.
The negative pole of table 1 is to shell voltage-contrast
Original negative pole is to shell voltage/V | Negative pole is to shell voltage/V after reparation | It is whether qualified |
0.22 | 2.79 | It is qualified |
0.30 | 2.70 | It is qualified |
0.31 | 2.87 | It is qualified |
0.40 | 2.92 | It is qualified |
0.42 | 2.88 | It is qualified |
0.50 | 1.24 | It is unqualified |
0.53 | 2.89 | It is qualified |
0.58 | 2.78 | It is qualified |
0.62 | 2.84 | It is qualified |
0.70 | 2.88 | It is qualified |
Embodiment two:Negative pole is to shell voltage range in 0.71V~1.26V 10 progress checking tests of battery, negative pole pair
Shell voltage is shown in Table 2.
Embodiment two concretely comprises the following steps:
1st, installation fixation is carried out by screw 4 after flow deflector 3 is placed;
2nd, with 0.5I1After electric current charges to blanking voltage, turn constant-voltage charge to electric current and be less than 0.03I1When charge cutoff;
3rd, the screw 4 in figure one is unclamped, after flow deflector 3 is rotated by 90 °, then screw 4 is fastened;
4th, with 1I1Current discharge is to blanking voltage;
5th, 1~4 step 1 ~ 5 time are circulated;
6th, with 1I1After electric current charges to blanking voltage, turn constant-voltage charge to electric current and be less than 0.03I1When charge cutoff, with 1I1Electric current
It is discharged to blanking voltage;
7th, after circulating 6 step 1~5 time, with 0.5I1Electric current adjusts battery electric quantity to 20%~80%SOC;
8th, negative pole is measured to shell voltage, the results are shown in Table 2.
The negative pole of table 2 is to shell voltage-contrast
Original negative pole is to shell voltage/V | Negative pole is to shell voltage/V after reparation | It is whether qualified |
0.71 | 2.90 | It is qualified |
0.82 | 2.87 | It is qualified |
0.91 | 2.75 | It is qualified |
0.98 | 2.90 | It is qualified |
1.08 | 2.91 | It is qualified |
1.14 | 2.89 | It is qualified |
1.18 | 2.91 | It is qualified |
1.20 | 2.89 | It is qualified |
1.22 | 2.90 | It is qualified |
1.26 | 2.88 | It is qualified |
Embodiment three:Negative pole is to shell voltage range in 1.30V~2.00V 10 progress checking tests of battery, negative pole pair
Shell voltage is shown in Table 3.
Embodiment three concretely comprises the following steps:
1st, installation fixation is carried out by screw 4 after flow deflector 3 is placed;
2nd, with 0.5I1After electric current charges to blanking voltage, turn constant-voltage charge to electric current and be less than 0.03I1When charge cutoff;
3rd, the screw 4 in figure one is unclamped, after flow deflector 3 is rotated by 90 °, then screw 4 is fastened;
4th, with 1I1Current discharge is to blanking voltage;
5th, 1~4 step 1 ~ 5 time are circulated;
6th, with 1I1After electric current charges to blanking voltage, turn constant-voltage charge to electric current and be less than 0.03I1When charge cutoff, with 1I1Electric current
It is discharged to blanking voltage;
7th, after circulating 6 step 1~5 time, with 0.5I1Electric current adjusts battery electric quantity to 20%~80%SOC;
8th, negative pole is measured to shell voltage, the results are shown in Table 3.
The negative pole of table 3 is to shell voltage-contrast
Original negative pole is to shell voltage/V | Negative pole is to shell voltage/V after reparation | It is whether qualified |
1.30 | 2.90 | It is qualified |
1.38 | 2.86 | It is qualified |
1.46 | 2.89 | It is qualified |
1.50 | 2.90 | It is qualified |
1.55 | 2.89 | It is qualified |
1.64 | 2.90 | It is qualified |
1.72 | 2.88 | It is qualified |
1.82 | 2.91 | It is qualified |
1.90 | 2.89 | It is qualified |
2.00 | 2.90 | It is qualified |
Claims (10)
1. a kind of negative pole is to the restorative procedure of shell A-battery, it is characterized in that it comprises the following steps:
Step 1, first using flow deflector(3)By to the positive terminal and battery container of shell low pressure lithium battery(1)Connect;
Step 2, then the battery after connection is charged, so as to by battery container(1)The lithium whole or portion that surface has deposited
Divide oxidation, reenter the lithium ion used in electrolyte as circulating and reversible after oxidation;
Step 3, then discharge and recharge is carried out, in multiple discharge and recharge, needed flow deflector in discharge process(3)Disconnect, prevent from putting
Lithium ion is again in battery container in electric process(1)Inwall is restored;
Step 4, the battery repaired, it need to confirm that battery will not occur negative pole again and shell low pressure is showed by 1~5 time discharge and recharge
As.
2. the restorative procedure according to claim 1 to negative pole to shell A-battery, it is characterized in that described to shell low pressure
Lithium battery is cylindrical type, square or rib type aluminum-shell lithium battery.
3. the restorative procedure according to claim 1 to negative pole to shell A-battery, it is characterized in that step 1 is low to shell
The positive electrode active materials for pressing lithium battery are LiFePO4、LiCoO2、LiMn2O2、LiNixCoyMnzO2Or LiNixCoyAlzO2In
One or more be mixed to form, wherein 0<x、y、z<1, x+y+z=1, negative active core-shell material is graphite type material or Si bases
The formation mixed above of one or both of material, it is to shell voltage range to shell low pressure cathode of lithium battery:0.1V < detection electricity
Press < 2V.
4. the restorative procedure according to claim 3 to negative pole to shell A-battery, it is characterized in that graphite type material is day
Right graphite, Delanium, MCMB, soft carbon or hard carbon.
5. the restorative procedure according to claim 1 to negative pole to shell A-battery, it is characterized in that described flow deflector is
Conductive material, conductive material are copper sheet, aluminium flake, nickel sheet or steel disc.
6. the restorative procedure according to claim 1 to negative pole to shell A-battery, it is characterized in that the electricity that charged in step 2
Flow for 0.1I1~5I1(note:I1For 1 hour rate discharge current), after charging to blanking voltage, turn constant-voltage charge to electric current 0.01I1
~0.5I1When charge cutoff.
7. a kind of negative pole is to the structure of the prosthetic device of shell A-battery, its feature it include electricity of the negative pole to shell low pressure lithium battery
Pond housing(1), in battery container(1)The upper cover plate on top(2)It is provided with positive terminal(5)And negative terminal(6), positive terminal(5)'s
Bottom is provided with positive pole fixed seat(7), positive terminal(5)Pass through positive pole fixed seat(7)Installed in upper cover plate(2)On, negative terminal(6)It is logical
Cross negative pole fixed seat(9)Installed in upper cover plate(2)On, in positive terminal(5)On be installed with flow deflector(3), flow deflector(3)'s
Left side is horizontal-extending to the left again after extending downward vertically to form left contact chip(10), flow deflector(3)Right side prolong downward vertically
It is horizontal-extending to the right again after stretching to form right contact chip(11), flow deflector(3)Pass on left left contact chip(10)With battery case
Body(1)Upper cover plate(2)Contact, flow deflector(3)Right side pass through right contact chip(11)With battery container(1)Upper cover plate(2)
Contact.
8. the structure according to claim 7 to negative pole to the prosthetic device of shell A-battery, it is characterized in that described leads
Flow(3)Pass through screw(4)It is fixedly mounted on positive terminal.
9. the structure to negative pole to the prosthetic device of shell A-battery according to claim 7 or 8, it is characterized in that described
Flow deflector(3)For conductive material, conductive material is copper sheet, aluminium flake, nickel sheet or steel disc.
10. the structure according to claim 7 to negative pole to the prosthetic device of shell A-battery, it is characterized in that it is described just
Pole fixed seat(7)With upper cover plate(2)Between be provided with felt pad(8).
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110336087A (en) * | 2019-05-30 | 2019-10-15 | 中天储能科技有限公司 | Lithium ion battery case electric voltage exception restorative procedure, prosthetic device and lithium ion battery |
CN112242572A (en) * | 2019-07-16 | 2021-01-19 | 深圳市拓邦锂电池有限公司 | Voltage boosting method for cathode and shell of lithium ion battery with square aluminum shell |
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