CN108808107A - A kind of silent formation device of lithium ion battery series connection - Google Patents
A kind of silent formation device of lithium ion battery series connection Download PDFInfo
- Publication number
- CN108808107A CN108808107A CN201810655218.9A CN201810655218A CN108808107A CN 108808107 A CN108808107 A CN 108808107A CN 201810655218 A CN201810655218 A CN 201810655218A CN 108808107 A CN108808107 A CN 108808107A
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- module
- lithium ion
- ion battery
- ization
- battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
-
- 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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- Secondary Cells (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of silent formation devices of lithium ion battery series connection, including babinet, primary pre-ization module, secondary pre-ization module, active Self management chemical conversion module and charging module, primary pre-ization module, secondary pre-ization module, active Self management chemical conversion module and charging module are arranged in babinet, and primary pre-ization module is used to decompose the H in lithium ion battery2O；Secondary pre-ization module is used to form the SEI films of lithium ion battery；Active Self management chemical conversion module is for repairing not complete SEI films；Charging module is used in battery forming process charge.Present device carries out silent chemical conversion of connecting by the active Self management equalizing charge system of intelligence to lithium ion battery, it is disposable to complete the chemical conversion of four semi-finished product battery cores in lithium ion battery, partial volume and follow-up battery core makes work in groups etc., its efficiency is 4 times of conventional equipment, battery core first-time qualification rate 95% simplifies the chemical synthesis technology of lithium ion battery, has saved manufacturing cost.
Description
Technical field
The present invention relates to lithium ion battery manufacturing equipment technical fields, and in particular to a kind of lithium ion battery series connection silentization
Forming apparatus.
Background technology
During liquid lithium ionic cell first charge-discharge, electrode material occurs instead with electrolyte on solid-liquid phase interface
It answers, forms one layer of passivation layer for being covered in electrode material surface, the layer passivating film of formation can effectively stop the logical of solvent molecule
It crosses, but Li+ can pass through the passivation layer freely insertion and deviate from, the feature with solid electrolyte, therefore this layer is passivated
Film is referred to as " solid electrolyte interface film " (solid electrolyte interface), abbreviation SEI.
Battery formation is the process by the battery made into line activating by certain charge and discharge system.Traditional chemical conversion
System will produce gas in formation process, and gas must remove, and not so can influence the performance of battery.Chemical conversion system traditional simultaneously
Degree retains aluminum plastic film air bag (there are gas vents for the battery with shell) during battery activated, is produced with storing in formation process
Raw gas.It is follow-up no matter use which kind of method for exhausting, all can residual fraction gas and moisture, to influence the cycle longevity of battery
Life.The chemical synthesizing method of soft bag lithium ionic cell is usually gasbag-type at present, that is, when using laminated aluminum film battery core, except packaging is electric completely
Outside core, there are a part of aluminum plastic films to be used as air bag, stores the gas generated in formation process, and air bag is cut off after chemical conversion and is carried out
Encapsulation.This method wastes aluminum plastic film, increases battery production cost, and the gas in addition generated cannot be eliminated thoroughly, and step is melted into
It is cumbersome.In addition, traditional chemical synthesis technology, which is single battery, carries out charging chemical conversion, the discrete type of battery is big, subsequently will pass through partial volume,
It could use in groups, the consistency of product is difficult to control, and increases battery production manufacturing cost, constrains lithium ion power electricity significantly
Pond commercial application.
Invention content
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, provide it is a kind of can reduce production cost,
Battery core consistency is improved, production efficiency and cycle life are improved and improves the equipment for generating lithium ion battery of battery security.
In order to solve the above-mentioned technical problem, the silent formation device of a kind of lithium ion battery series connection of the present invention, including babinet, one
Secondary pre-ization module, secondary pre-ization module, active Self management chemical conversion module and charging module, it is the primary pre-ization module, secondary
Pre-ization module, active Self management chemical conversion module and charging module are arranged in babinet, and the primary pre-ization module is for decomposing
H in lithium ion battery2O, by H2O is converted to irreversible hydrogen atom and oxygen atom；The secondary pre-ization module is used to form lithium
The SEI films of ion battery；The active Self management chemical conversion module promotes lithium ion for repairing not complete SEI films
The anti-breakdown voltage capabilities of battery；The charging module is used to charge to lithium ion battery in battery forming process.
Further, the pre-ization blanking voltage ranging from 2.5-2.6V of the primary pre-ization module, the electric current changed in advance are maximum
Value is 0.01CA；The pre-ization blanking voltage ranging from 3.5-3.6V of the secondary pre-ization module, the current maxima changed in advance are
0.1CA；The active Self management chemical conversion module chemical conversion blanking voltage is 4.15V, and forming current maximum value is 0.3CA.
Further, the babinet top is equipped with input terminal and output end, is all provided on the inside of the input terminal and output end
There is radiator fan.
Further, the front panel of the babinet is equipped with power switch, indicator light, display charactron and adjusting and presses
Button.
Further, the lithium ion battery includes the battery core of four pumping sealings, four battery cores series connection.
Specifically, the first interface of the output end is connect with the anode of the battery core of series connection head end, and the of the output end
Two interfaces are connect with the cathode of the battery core of series connection end, to form the circuit of a closure.
The present invention has the advantages that：Present device is by the active Self management equalizing charge system of intelligence to lithium
Ion battery carries out silent chemical conversion of connecting, it is disposable complete the chemical conversion of four semi-finished product battery cores in lithium ion battery, partial volume and at
A series of follow-up battery cores of group make work, and efficiency is 4 times of conventional equipment, battery core first-time qualification rate 95%, simplify lithium from
The chemical synthesis technology of sub- battery has saved manufacturing cost, solves the uncontrollable technical bottleneck of lithium battery manufacturing field consistency,
And the key indexes such as battery charging and discharging performance, cycle life produced substantially exceed traditional chemical synthesis technology.
Description of the drawings
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical scheme of the present invention
The attached drawing used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Its attached drawing.
Fig. 1 is the schematic diagram that the silent series connection formation device of lithium ion battery of the present invention is connect with lithium ion battery；
Fig. 2 is the panel schematic diagram of formation device of the present invention；
In figure：1- babinets, 2- once change module, bis- pre-ization modules of 3- in advance, and the active Self managements of 4- are melted into module, and 5- fills
Electric module, 6- input terminals, 7- output ends, 8- radiator fans, 9- power switches, 10- indicator lights, 11- show charactron, 12- tune
Save button, 13- battery cores.
Specific implementation mode
The technical solution in inventive embodiments will be clearly and completely described below, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of not making creative work belongs to the model that the present invention protects
It encloses.
Embodiment：
Please refer to Fig.1 to Fig. 2, a kind of equipment for generating lithium ion battery of the present invention, including babinet 1, primary pre-ization module 2,
Secondary pre-ization module 3, active Self management chemical conversion module 4 and charging module 5, the primary pre-ization module 2, secondary pre-ization module
3, active Self management chemical conversion module 4 and charging module 5 are arranged in babinet 1, the primary pre-ization module 2 be used to decompose lithium from
H in sub- battery2O, by H2O is converted to irreversible hydrogen atom H and oxygen atom O, pre-ization blanking voltage ranging from 2.5-2.6V,
The current maxima changed in advance is 0.01CA, and to prevent water in formation process to resolve into hydrogen and oxygen, being allowed to cannot be with electricity
It solves liquid and complicated chemical reaction occurs, ensure that lithium ion battery production and the safety using process, while promoting lithium ion
Battery property indices；
The secondary pre-ization module 3 is used to form the SEI films of based lithium-ion battery positive plate and negative plate surface compact, pre-ization
Blanking voltage ranging from 3.5-3.6V, the current maxima changed in advance are 0.1CA, this process determines cycle life of lithium ion battery
Length, the unit for electrical property parameters that SEI films form more complete then battery are better；
The active Self management chemical conversion module 4 for repairing not complete SEI films, intelligent control whole group battery core it is consistent
Property, while the anti-breakdown voltage capabilities of lithium ion battery are promoted, greatly improve the overcharge ability of lithium ion battery, chemical conversion cut-off electricity
Press 4.15V, forming current maximum 0.3CA；
The charging module 5 is used to charge to lithium ion battery in battery forming process.
Further, 1 top of the babinet is equipped with input terminal 6 and output end 7, the inside of the input terminal 6 and output end 7
It is equipped with radiator fan 8, the alternating voltage of the input terminal is 220V, and the output end is connect with lithium ion battery, described to dissipate
Hot-air fan 8 is used to exclude the heat inside this formation device.
Further, the front panel of the babinet 1 is equipped with power switch 9, indicator light 10, display charactron 11 and adjusts
Button 12 is saved, for being operated to whole equipment.
Further, the lithium ion battery includes the battery core 13 of four pumping sealings, four battery cores 13 series connection, electricity
Core is that pole piece enters shell fluid injection standing 24 hours, and the semi-finished product for being then evacuated sealing are not melted into battery core, and the first of the output end 7 connects
Mouth is connect with the anode of the battery core 13 of series connection head end, the cathode of the second interface of the output end 7 and the battery core 13 for end of connecting
Connection, to form the circuit of a closure.
The present invention has the advantages that：Present device is by the active Self management equalizing charge system of intelligence to lithium
Ion battery carries out silent chemical conversion of connecting, it is disposable complete the chemical conversion of four semi-finished product battery cores in lithium ion battery, partial volume and at
A series of follow-up battery cores of group make work, and efficiency is 4 times of conventional equipment, battery core first-time qualification rate 95%, simplify lithium from
The chemical synthesis technology of sub- battery, improves production efficiency at the production cost for reducing battery, solves lithium battery manufacturing field consistency
Uncontrollable technical bottleneck, and the key indexes such as battery charging and discharging performance, cycle life produced substantially exceed biography
The lithium ion battery that the chemical synthesis technology of system is produced provides reliable skill for lithium-ion-power cell large-scale industrialized production
Art supports.
Above disclosed is only several preferred embodiments of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (6)
- The silent formation device 1. a kind of lithium ion battery is connected, which is characterized in that including babinet (1), primary pre-ization module (2), Secondary pre-ization module (3), active Self management chemical conversion module (4) and charging module (5), it is the once pre-ization module (2), secondary Pre-ization module (3), active Self management chemical conversion module (4) and charging module (5) setting are in babinet (1), primary pre-ization Module (2) is used to decompose the H in lithium ion battery2O, by H2O is converted to irreversible hydrogen atom and oxygen atom；It is described secondary pre- Change the SEI films that module (3) is used to form lithium ion battery；The active Self management chemical conversion module (4) is not complete for repairing SEI films, while promoting the anti-breakdown voltage capabilities of lithium ion battery；The charging module (5) be used for battery forming process in Lithium ion battery charges.
- The silent formation device 2. a kind of lithium ion battery according to claim 1 is connected, which is characterized in that described primary pre- Change the pre-ization blanking voltage ranging from 2.5-2.6V of module (2), the current maxima changed in advance is 0.01CA；The secondary pre-ization mould The pre-ization blanking voltage ranging from 3.5-3.6V of block (3), the current maxima changed in advance are 0.1CA；The active Self management It is 4.15V at module (4) chemical conversion blanking voltage, forming current maximum value is 0.3CA.
- The silent formation device 3. a kind of lithium ion battery according to claim 1 is connected, which is characterized in that the babinet (1) top is equipped with input terminal (6) and output end (7), and radiator fan is equipped on the inside of the input terminal (6) and output end (7) (8)。
- The silent formation device 4. a kind of lithium ion battery according to claim 3 is connected, which is characterized in that the babinet (1) front panel is equipped with power switch (9), indicator light (10), display charactron (11) and regulation button (12).
- The silent formation device 5. a kind of lithium ion battery according to claim 3 is connected, which is characterized in that the lithium ion Battery includes the battery core (13) of four pumping sealings, four battery cores (13) series connection.
- The silent formation device 6. a kind of lithium ion battery according to claim 5 is connected, which is characterized in that the output end (7) first interface is connect with the anode of the battery core (13) of series connection head end, the second interface of the output end (7) and end of connecting Battery core (13) cathode connection, with formed one closure circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655218.9A CN108808107A (en) | 2018-06-23 | 2018-06-23 | A kind of silent formation device of lithium ion battery series connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810655218.9A CN108808107A (en) | 2018-06-23 | 2018-06-23 | A kind of silent formation device of lithium ion battery series connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108808107A true CN108808107A (en) | 2018-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810655218.9A Withdrawn CN108808107A (en) | 2018-06-23 | 2018-06-23 | A kind of silent formation device of lithium ion battery series connection |
Country Status (1)
| Country | Link |
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| CN (1) | CN108808107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108660A (en) * | 2019-04-19 | 2019-08-09 | 合肥国轩高科动力能源有限公司 | Chemical method for representing reasons of SEI film generation platform |
-
2018
- 2018-06-23 CN CN201810655218.9A patent/CN108808107A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108660A (en) * | 2019-04-19 | 2019-08-09 | 合肥国轩高科动力能源有限公司 | Chemical method for representing reasons of SEI film generation platform |
| CN110108660B (en) * | 2019-04-19 | 2021-11-05 | 合肥国轩高科动力能源有限公司 | Chemical method for representing reasons of SEI film generation platform |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181113 |