CN104167566B - A kind of sealing chemical synthesizing method of lithium ion battery - Google Patents
A kind of sealing chemical synthesizing method of lithium ion battery Download PDFInfo
- Publication number
- CN104167566B CN104167566B CN201410383621.2A CN201410383621A CN104167566B CN 104167566 B CN104167566 B CN 104167566B CN 201410383621 A CN201410383621 A CN 201410383621A CN 104167566 B CN104167566 B CN 104167566B
- Authority
- CN
- China
- Prior art keywords
- battery
- injection port
- liquid injection
- hours
- lithium ion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
- H01M50/627—Filling ports
- H01M50/636—Closing or sealing filling ports, e.g. using lids
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of sealing chemical synthesizing method of lithium ion battery, comprises the following steps：A () reserves exhaust hole position and liquid injection port on battery case, fill electrolyte to battery, weigh；(b) sealed cell liquid injection port；C () stands 2.0 hours to 24.0 hours under normal temperature environment；D () stands after the completion of, line precharge is entered to battery；E () completes precharge after, lower standing 0.5 hour to 20.0 hours is opened steam vent, carries out vacuumizing and exhausting；After (f) drained inside battery waste gas, steel ball seal vents, blend compounds are used to be reinforced；G battery standing under normal temperature environment, and is carried out continuous filling by () to battery.Prior art blow-by liquid injection port after fluid injection, so that inside battery is longer with extraneous time of contact, the possibility of battery moisture absorption increases, and the present invention directly seals liquid injection port after fluid injection, make inside battery very short with external environment condition time of contact, reduce the possibility of battery moisture absorption.
Description
Technical field
A kind of a kind of the present invention relates to chemical synthesizing method of lithium ion battery, more particularly to the sealing chemical conversion side of lithium ion battery
Method.
Background technology
Lithium ion battery is a class by Li+Secondary cell of the inlaid scheme for both positive and negative polarity, using non-aqueous electrolytic solution
Battery, have the advantages that energy density height, environmental friendliness, have extended cycle life, have a safety feature, quick charge, be digital product
The ideal source of product, and the power source of electric automobile, electric bicycle.
The chemical conversion of lithium ion battery is acted on of both mainly having：One is to make the active material in battery by means of for the first time
Charging changes into the material with normal electrochemical action；Two is to make electrode be mainly negative terminal surface to generate effective passivating film (SEI
Film), to prevent negative pole spontaneous and electrolyte reacts, while making have good contact between active material and electrolyte.
The chemical synthesizing method of common lithium ion battery is open formation, and its method of operating is：By blow-by after battery liquid-filling
Liquid injection port, makes inside battery communicate with external environment condition, enters line precharge and shelves, and then seals liquid injection port.Due to electricity during chemical conversion
Pond is communicated with external environment condition, so the waste gas produced during preliminary filling and standing can be directly excluded, but in formation process,
The time that inside battery is contacted with the external world is longer, and the possibility of battery moisture absorption increases, therefore higher to being melted into the requirement of environment；And
And the uniformity between the battery obtained using the method is slightly worse, the battery manufacturing procedure cycle is long, also result in the rising of manufacturing expense.
There is a kind of chemical synthesis technology in prior art, be liquid injection port will directly to be sealed after battery liquid-filling, then enter line precharge
With shelve.The inside battery of the method is short with external environment condition time of contact, and during chemical conversion, battery is in sealing state, and therefore battery is inhaled
Wet possibility is reduced, and processing time is short, and expense reduces.But, the method is produced by during being pre-charged and its shelving
Waste gas directly stay in inside battery, waste gas cannot be excluded, and cause battery early stage loop attenuation larger, be not suitable for rectangular cell
Chemical conversion.
Content of the invention
The goal of the invention of the present invention is to provide a kind of sealing chemical synthesizing method of lithium ion battery, solves existing lithium ion battery
Battery moisture absorption in formation process, waste gas cannot be discharged, and processing time is long, the problem of high cost.
To achieve the above object of the invention, the technical solution used in the present invention is：A kind of sealing chemical conversion side of lithium ion battery
Method, comprises the following steps：
A () reserves exhaust hole position and liquid injection port first on battery case, then press design quantity and fill electrolyte to battery,
And complete to weigh；
(b) sealed cell liquid injection port；
C () will be clean for cell cover plate cleaning, under normal temperature environment stand 2.0 hours to 24.0 hours；
D () stands after the completion of, line precharge is entered to battery；
E () completes precharge after, under normal temperature environment, 0.5 hour to 20.0 hours is stood, open the exhaust on battery case
Hole, carries out vacuumizing and exhausting；
F, after () drained inside battery waste gas, with the steam vent on steel ball sealed cell shell, blend compounds are reinforced；
G battery standing under normal temperature environment, and is carried out continuous filling by () to battery.
Above step（a）Described in steam vent be located at the cell cover edges of boards edge, be made up of aluminum dipping form, in closed
State.
In preferred technical scheme, step（d）Middle electric current is：0.03C to 1.0C, the time is：0.7 hour to 20.0 little
When.
In preferred technical scheme, step（b）Liquid injection port is sealed by the way of laser welding.
As above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. prior art blow-by liquid injection port after fluid injection so that inside battery is longer with extraneous time of contact, and battery is inhaled
Wet possibility increases, and the present invention directly seals liquid injection port after fluid injection, makes inside battery non-with external environment condition time of contact
Often short, reduce the possibility of battery moisture absorption.
2. prior art is directly just sealed liquid injection port after fluid injection, and the waste gas produced during being pre-charged and shelving is direct
Inside battery is stayed in, result in waste gas cannot exclude, and the present invention is after precharging, precharge is excluded by the steam vent for designing
And the waste gas produced during shelving.
3. the processing time of the present invention is short, and the uniformity between battery is improved, and cycle performance has certain lifting, with existing skill
Art open formation operation is compared, and manufacturing expense reduces.
Description of the drawings
Fig. 1 is one technique of the embodiment of the present invention and battery capacity detection curve comparison diagram obtained in traditional handicraft；
Fig. 2 is one technique of the embodiment of the present invention and circulating battery frequency curve comparison diagram obtained in traditional handicraft；
Fig. 3 is the cell cover plate structure schematic diagram of the embodiment of the present invention two.
Wherein：1st, upper cover plate；2nd, pole；3rd, liquid injection port；4th, hole position is vented.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment one：A kind of sealing chemical synthesizing method of lithium ion battery, which comprises the following steps：
A () reserves exhaust hole position 4 and liquid injection port 3 first on battery case, then press design quantity and give battery filling electrolysis
Liquid, and complete to weigh；
B () adopts laser welding mode sealed cell liquid injection port 3；
C cell cover plate 1 is cleaned totally by (), under normal temperature environment stand 2.0 hours to 24.0 hours；
D () stands after the completion of, line precharge is entered to battery；
E () completes precharge after, under normal temperature environment, 0.5 hour to 20.0 hours is stood, open the exhaust on battery case
Hole, carries out vacuumizing and exhausting；
F, after () drained inside battery waste gas, with the steam vent on steel ball sealed cell shell, blend compounds are reinforced；
G battery standing under normal temperature environment, and is carried out continuous filling by () to battery.
In the present embodiment, step（d）Middle electric current is：0.03C to 1.0C, the time is：0.7 hour to 20.0 hours.
In the present embodiment, in step (f), " glue " refers to UV solidification glues or AB glue；Performance indications are required：Acid and alkali resistance burn into master
Dynamic or passive curing rate is fast, after solidification temperature influence deformation little.
The battery of a battery with open formation technique fluid injection and present invention sealing chemical synthesis technology fluid injection is respectively taken, to battery
Capacity and cycle life are tested, as a result as shown in Figure 1 and Figure 2.Fig. 1 is open formation technique battery capacity, seals chemical conversion work
The histogram of skill capacity, from the point of view of contrast capacity data, obtained in fluid injection chemical synthesis technology of the present invention, the uniformity of battery capacity is good,
High more than the 300mAh of capacity, Fig. 2 are tri- kinds of chemical synthesis technology loop-around data contrasts of 1833-12Ah, from the point of view of loop-around data, the present invention
Sealing chemical synthesis technology is slightly better than other two kinds of techniques, and uniformity is high.
Embodiment two：A kind of sealing chemical synthesizing method of lithium ion battery, which comprises the following steps：
A () is first in the upper cover plate 1 of battery case（Referring to shown in accompanying drawing 3）Upper reserved exhaust hole position 4 and liquid injection port 3, then
Press design quantity and electrolyte is filled to battery, and complete to weigh；
(b) using by the way of 3 Welding Safety valve of liquid injection port come sealed cell liquid injection port 3；
C () inserts vacuum -50 true to 65KPa as shown in figure 3, will clean clean around battery electrode column 2, safety valve
2-6 hours in empty van, the sealing of exhaustive test welding position；
（d）About 9.0-15.0 hours are stood under 30-50 DEG C of temperature environment；
E () stands after the completion of, line precharge is entered to battery；
F () completes precharge after, 0.5-20.0 hours are stood under normal temperature environment, the steam vent on battery case is opened, is entered
Row vacuumizing and exhausting；
G, after () drained inside battery waste gas, with the steam vent on steel ball sealed cell shell, blend compounds are reinforced；
H battery standing under normal temperature environment, and is carried out continuous filling by () to battery.
In the present embodiment, step（d）Middle pre-charge current is：0.03C to 1.0C, the time is：0.7 hour to 20.0 little
When.
In the present embodiment, in step (g), " glue " refers to UV solidification glues or AB glue；Performance indications are required：Acid and alkali resistance burn into master
Dynamic or passive curing rate is fast, after solidification temperature influence deformation little.
Embodiment three：A kind of sealing chemical synthesizing method of lithium ion battery, which comprises the following steps：
A () reserves exhaust hole position 4 and liquid injection port 3 first on battery case, then press design quantity and give battery filling electrolysis
Liquid, and complete to weigh；
B () adopts laser welding mode sealed cell liquid injection port 3；
C cell cover plate 1 is cleaned totally by (), under normal temperature environment stand 2.0 hours to 24.0 hours；
D () stands after the completion of, line precharge is entered to battery；
E () completes precharge after, under normal temperature environment, stand 8.0 hours to 36.0 hours；
F battery standing under normal temperature environment, and is carried out continuous filling by () to battery；
G () completes continuous charging after, the steam vent on battery case is opened, vacuumizing and exhausting is carried out；
H, after () drained inside battery waste gas, with the steam vent on steel ball sealed cell shell, blend compounds are reinforced；
In the present embodiment, step（d）Middle electric current is：0.03C to 1.0C, the time is：0.7 hour to 20.0 hours.
In the present embodiment, in step (h), " glue " refers to UV solidification glues or AB glue；Performance indications are required：Acid and alkali resistance burn into master
Dynamic or passive curing rate is fast, after solidification temperature influence deformation little.
Claims (3)
1. the sealing chemical synthesizing method of a kind of lithium ion battery, it is characterised in that：Which comprises the following steps：
A () reserves exhaust hole position first on cell cover plate（4）And liquid injection port（3）, then press design quantity and fill to battery
Electrolyte, and complete to weigh；
(b) sealed cell liquid injection port；
C () is by cell cover plate（1）Cleaning is clean, under normal temperature environment stands 2.0 hours to 24.0 hours；
D () stands after the completion of, line precharge is entered to battery；
E () completes precharge after, under normal temperature environment, 0.5 hour to 36.0 hours is stood, open the exhaust on cell cover plate
Hole, carries out vacuumizing and exhausting；
F, after () drained inside battery waste gas, with the steam vent on steel ball sealed cell upper cover plate, blend compounds are reinforced；
G battery standing under normal temperature environment, and is carried out continuous filling by () to battery.
2. the sealing chemical synthesizing method of lithium ion battery according to claim 1, it is characterised in that：Step（d）Middle electric current is：
0.03C to 1.0C, the time is：0.7 hour to 20.0 hours.
3. the sealing chemical synthesizing method of lithium ion battery according to claim 1, it is characterised in that：The step（b）Using
The mode of laser welding seals liquid injection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410383621.2A CN104167566B (en) | 2014-08-06 | 2014-08-06 | A kind of sealing chemical synthesizing method of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410383621.2A CN104167566B (en) | 2014-08-06 | 2014-08-06 | A kind of sealing chemical synthesizing method of lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104167566A CN104167566A (en) | 2014-11-26 |
| CN104167566B true CN104167566B (en) | 2017-03-15 |
Family
ID=51911290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410383621.2A Active CN104167566B (en) | 2014-08-06 | 2014-08-06 | A kind of sealing chemical synthesizing method of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104167566B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579281A (en) * | 2017-08-31 | 2018-01-12 | 北京军秀咨询有限公司 | A kind of formation method of high-capacity power lithium iron phosphate battery |
| CN113903998B (en) * | 2021-09-30 | 2023-02-14 | 蜂巢能源科技有限公司 | Lithium ion battery and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368571A (en) * | 2011-09-05 | 2012-03-07 | 东莞新能源科技有限公司 | Precharge method of lithium ion batteries |
| CN102820488A (en) * | 2012-07-25 | 2012-12-12 | 深圳市海太阳实业有限公司 | Formation encapsulation method for lithium ion battery |
| CN103094635A (en) * | 2011-10-27 | 2013-05-08 | 广州鹏辉能源科技股份有限公司 | Method for improving stability of lithium iron phosphate battery |
| CN103560280A (en) * | 2013-10-11 | 2014-02-05 | 深圳华粤宝电池有限公司 | Chemical synthetic method of lithium ion battery |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6586131B2 (en) * | 2001-02-16 | 2003-07-01 | Wilson Greatbatch Ltd. | Apparatus for releasing gases from rechargeable lithium electrochemical cells during the formation stage of manufacturing |
| CN202308199U (en) * | 2011-10-14 | 2012-07-04 | 深圳市海盈科技有限公司 | Device for forming of lithium ion battery |
| KR101683206B1 (en) * | 2012-04-30 | 2016-12-06 | 삼성에스디아이 주식회사 | Negative electrode for rechargeable lithium battery and rechargeable lithium battery including the same |
-
2014
- 2014-08-06 CN CN201410383621.2A patent/CN104167566B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368571A (en) * | 2011-09-05 | 2012-03-07 | 东莞新能源科技有限公司 | Precharge method of lithium ion batteries |
| CN103094635A (en) * | 2011-10-27 | 2013-05-08 | 广州鹏辉能源科技股份有限公司 | Method for improving stability of lithium iron phosphate battery |
| CN102820488A (en) * | 2012-07-25 | 2012-12-12 | 深圳市海太阳实业有限公司 | Formation encapsulation method for lithium ion battery |
| CN103560280A (en) * | 2013-10-11 | 2014-02-05 | 深圳华粤宝电池有限公司 | Chemical synthetic method of lithium ion battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104167566A (en) | 2014-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7076495B2 (en) | How to quickly group and repair used batteries | |
| CN103515653A (en) | Formation method of soft-packed lithium ion battery | |
| CN107464956A (en) | A kind of new process for making of lithium ion battery | |
| CN103872381A (en) | Liquid-injection standing method for power cell | |
| CN107681104A (en) | A kind of liquid injection process of polymer soft bag lithium ionic cell | |
| CN106299514A (en) | A kind of compound method for lithium ion battery | |
| CN109612868B (en) | Method for testing acid saturation of AGM storage battery | |
| CN104143662B (en) | A kind of square box hat or lithium ion battery with aluminum shell chemical conversion new method | |
| CN102347516B (en) | Inner forming process of tubular lead-acid storage battery | |
| CN107994261A (en) | A kind of soft bag lithium ionic cell production method | |
| CN106711507A (en) | Forming and produced gas removing method of cylindrical steel-shell lithium titanate battery | |
| CN106067562A (en) | The detecting system of a kind of lithium ion battery cell welding quality and detection method thereof | |
| CN104167566B (en) | A kind of sealing chemical synthesizing method of lithium ion battery | |
| CN105161766A (en) | Filling formation method for power type lithium battery | |
| CN110718669A (en) | Manufacturing process of soft package lithium ion battery | |
| CN106848408A (en) | It is a kind of to improve the method that Soft Roll square high-temperature lithium ion battery stores gas production | |
| CN104614678B (en) | A kind of lead-acid accumulator is internalized into the on-line measuring device and method of process battery electrode current potential | |
| CN106876792A (en) | A kind of soft bag lithium ionic cell electrolyte wetting method, the chemical synthesizing method of soft bag lithium ionic cell | |
| CN103985911B (en) | A kind of lithium ion battery aging method | |
| CN205911371U (en) | Lithium ion battery cell welding quality's detecting system | |
| CN101399366A (en) | Method for pre-charging lithium ionic cell | |
| CN101673848A (en) | Method for manufacturing lithium-ion batteries | |
| CN106684449A (en) | Method for preparing cylinder lithium ion battery | |
| CN204368790U (en) | A kind of battery acid fluid reservoir | |
| CN102569908A (en) | Method for assembling valve-control sealed type maintenance-free lead acid storage battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 215153 Suzhou high tech Zone, Jiangsu city science and technology, Jinsha River Road, No. 181 Applicant after: Phylion battery Limited by Share Ltd Address before: 215153 Suzhou high tech Zone, Jiangsu City, science and technology zone, Jinsha River Road, No. 181 Applicant before: Suzhou Phylion Battery Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |