CN104167566A - Sealing forming method of lithium ion battery - Google Patents
Sealing forming method of lithium ion battery Download PDFInfo
- Publication number
- CN104167566A CN104167566A CN201410383621.2A CN201410383621A CN104167566A CN 104167566 A CN104167566 A CN 104167566A CN 201410383621 A CN201410383621 A CN 201410383621A CN 104167566 A CN104167566 A CN 104167566A
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- Prior art keywords
- battery
- liquid injection
- hours
- lithium ion
- sealing
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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
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
Abstract
The invention discloses a sealing forming method of a lithium ion battery. The sealing forming method comprises the following steps: (a) reserving an exhaust hole and a liquid injection opening in a battery shell, filling the battery with electrolytes, and weighing; (b) sealing the liquid injection opening of the battery; (c) standing for 2.0 hours to 24.0 hours in the environment of room temperature; (d) precharging the battery after standing; (e) standing for 0.5 hour to 2.0 hours after precharging, and opening the exhaust hole to vacuumize and exhaust; (f) sealing the exhaust hole with steel balls after waste gas in the battery is exhausted, and reinforcing with adhesive; and (g) standing the battery in the environment of room temperature, and continuing charging the battery. In the prior art, the liquid injection opening is not sealed after liquid injection, so that the contact time of the interior of the battery with the outside is long, and the moisture absorption possibility of the battery is increased. According to the sealing forming method, the liquid injection opening is directly sealed after liquid injection, so that the contact time of the interior of the battery with the outside is very short, and the moisture absorption possibility of the battery is reduced.
Description
Technical field
The present invention relates to a kind of chemical synthesizing method of lithium ion battery, relate in particular to a kind of sealing chemical synthesizing method of lithium ion battery.
Background technology
Lithium ion battery is that a class is by Li
+the secondary cell that embedding compound is both positive and negative polarity, use the battery of non-aqueous electrolytic solution, have that energy density is high, environmental friendliness, have extended cycle life, the advantage such as security performance is good, quick charge, be the ideal source of digital product, be also the power source of electric automobile, electric bicycle.
Lithium ion battery change into the effect that mainly contains two aspects: the one, make the active material in battery change into the material with normal electrical chemical action by means of charging for the first time; The 2nd, making electrode is mainly that negative terminal surface generates effective passivating film (SEI film), reacts with electrolyte to prevent that negative pole is spontaneous, and make has good contacting simultaneously between active material and electrolyte.
The chemical synthesizing method of common lithium ion battery is open formation, and its method of operation is: by blow-by liquid injection port after battery liquid-filling, inside battery is communicated with external environment condition, carry out precharge and shelve, then seal liquid injection port.Battery communicates with external environment condition when changing into, so can directly get rid of the waste gas producing in preliminary filling and standing process, but in formation process, inside battery is longer with the extraneous time contacting, the possibility of battery moisture absorption increases, therefore to changing into having relatively high expectations of environment; And adopt the method obtain battery between consistency slightly poor, the battery manufacturing procedure cycle is long, has also caused the rising of manufacturing expense.
In prior art, also have a kind of chemical synthesis technology, be after battery liquid-filling, directly to seal liquid injection port, then carry out precharge and shelve.The inside battery of the method and external environment condition are short time of contact, and while changing into, battery is in sealing state, and therefore the possibility of battery moisture absorption reduces, and the processing procedure time is short, and expense reduces.But the waste gas that the method produces in precharge and in shelving process is directly stayed inside battery, waste gas cannot be got rid of, and causes battery loop attenuation in early stage larger, is not suitable for changing into of rectangular cell.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of sealing chemical synthesizing method of lithium ion battery, solves battery moisture absorption in existing lithium ion battery formation process, and waste gas cannot be discharged, and the processing procedure time is long, the problem that cost is high.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of sealing chemical synthesizing method of lithium ion battery, comprises the following steps:
(a) first reserved steam vent position and liquid injection port on battery case, then by design quantity to the battery electrolyte of annotating, and complete and weigh;
(b) sealed cell liquid injection port;
(c) by clean cell cover plate clean, under normal temperature environment, leave standstill 2.0 hours to 24.0 hours;
(d), after having left standstill, battery is carried out to precharge;
(e) complete after precharge, under normal temperature environment, leave standstill 0.5 hour to 20.0 hours, open the steam vent on battery case, carry out vacuumizing and exhausting;
(f), after drained inside battery waste gas, with the steam vent on steel ball sealed cell shell, and reinforce with glue;
(g) by battery standing under normal temperature environment, and battery is continued and is filled.
Above described in step (a), steam vent is positioned at described cell cover panel edges, is made up of, in closed state aluminum dipping form.
In preferred technical scheme, in step (d), electric current is: 0.03C to 1.0C, the time is: 0.7 hour to 20.0 hours.
In preferred technical scheme, step (b) adopts the mode of laser welding to seal liquid injection port.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. prior art blow-by liquid injection port after fluid injection, make inside battery 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 and external environment condition very short time of contact, reduced the possibility of battery moisture absorption.
2. prior art directly just seals liquid injection port after fluid injection, precharge and shelve the waste gas producing in process and directly stay inside battery, caused waste gas to get rid of, and the present invention is after precharge, is got rid of precharge and is shelved the waste gas producing in process by the steam vent of design.
The processing procedure time of the present invention short, consistency between battery improves, cycle performance has certain lifting, compared with prior art open formation operation, manufacturing expense reduces.
Brief description of the drawings
Fig. 1 is the battery capacity detection curve comparison diagram that the embodiment of the present invention one technique and traditional handicraft make;
Fig. 2 is the circulating battery frequency curve comparison diagram that the embodiment of the present invention one technique and traditional handicraft make;
Fig. 3 is the cell cover plate structure schematic diagram of the embodiment of the present invention two.
Wherein: 1, upper cover plate; 2, pole; 3, liquid injection port; 4, steam vent position.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment mono-: a kind of sealing chemical synthesizing method of lithium ion battery, it comprises the following steps:
(a) first reserved steam vent position 4 and liquid injection port 3 on battery case, then by design quantity to the battery electrolyte of annotating, and complete and weigh;
(b) adopt laser welding mode sealed cell liquid injection port 3;
(c) by clean cell cover plate 1 clean, under normal temperature environment, leave standstill 2.0 hours to 24.0 hours;
(d), after having left standstill, battery is carried out to precharge;
(e) complete after precharge, under normal temperature environment, leave standstill 0.5 hour to 20.0 hours, open the steam vent on battery case, carry out vacuumizing and exhausting;
(f), after drained inside battery waste gas, with the steam vent on steel ball sealed cell shell, and reinforce with glue;
(g) by battery standing under normal temperature environment, and battery is continued and is filled.
In the present embodiment, in step (d), 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 that UV solidifies glue or AB glue; Performance index require: after the active of acid and alkali resistance burn into or passive curing rate are fast, curing, temperature influence deformation is little.
Respectively get the battery that a battery with the fluid injection of open formation technique and the present invention seal chemical synthesis technology fluid injection, battery capacity and cycle life are tested, result as shown in Figure 1 and Figure 2.Fig. 1 is open formation technique battery capacity, the histogram of sealing chemical synthesis technology capacity, from contrast capacity data, the high conformity of the battery capacity that fluid injection chemical synthesis technology of the present invention makes, more than the high 300mAh of capacity, Fig. 2 is tri-kinds of chemical synthesis technology loop-around data contrasts of 1833-12Ah, from loop-around data, it is slightly better than other two kinds of techniques that the present invention seals chemical synthesis technology, and consistency is high.
Embodiment bis-: a kind of sealing chemical synthesizing method of lithium ion battery, it comprises the following steps:
(a) first at the upper cover plate 1(of battery case referring to shown in accompanying drawing 3) upper reserved steam vent position 4 and liquid injection port 3, then by design quantity to the battery electrolyte of annotating, and complete and weigh;
(b) adopt and carry out sealed cell liquid injection port 3 in the mode of liquid injection port 3 Welding Safety valves;
(c) as shown in Figure 3, will battery electrode column 2, safety valve is clean clean around, insert vacuum degree-50 to 2-6 hour in the vacuum tank of 65KPa, the sealing of exhaustive test welding position;
(d) under the temperature environment of 30-50 DEG C, leave standstill about 9.0-15.0 hour;
(e), after having left standstill, battery is carried out to precharge;
(f) complete after precharge, under normal temperature environment, leave standstill 0.5-20.0 hour, open the steam vent on battery case, carry out vacuumizing and exhausting;
(g), after drained inside battery waste gas, with the steam vent on steel ball sealed cell shell, and reinforce with glue;
(h) by battery standing under normal temperature environment, and battery is continued and is filled.
In the present embodiment, in step (d), pre-charge current is: 0.03C to 1.0C, the time is: 0.7 hour to 20.0 hours.
In the present embodiment, in step (g), " glue " refers to that UV solidifies glue or AB glue; Performance index require: after the active of acid and alkali resistance burn into or passive curing rate are fast, curing, temperature influence deformation is little.
?
Embodiment tri-: a kind of sealing chemical synthesizing method of lithium ion battery, it comprises the following steps:
(a) first reserved steam vent position 4 and liquid injection port 3 on battery case, then by design quantity to the battery electrolyte of annotating, and complete and weigh;
(b) adopt laser welding mode sealed cell liquid injection port 3;
(c) by clean cell cover plate 1 clean, under normal temperature environment, leave standstill 2.0 hours to 24.0 hours;
(d), after having left standstill, battery is carried out to precharge;
(e) complete after precharge, under normal temperature environment, leave standstill 8.0 hours to 36.0 hours;
(f) by battery standing under normal temperature environment, and battery is continued and is filled;
(g) complete after continuous charging, open the steam vent on battery case, carry out vacuumizing and exhausting;
(h), after drained inside battery waste gas, with the steam vent on steel ball sealed cell shell, and reinforce with glue;
In the present embodiment, in step (d), 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 that UV solidifies glue or AB glue; Performance index require: after the active of acid and alkali resistance burn into or passive curing rate are fast, curing, temperature influence deformation is little.
Claims (3)
1. a sealing chemical synthesizing method for lithium ion battery, is characterized in that: it comprises the following steps:
(a) first reserved steam vent position (4) and liquid injection port (3) on cell cover plate, then by design quantity to the battery electrolyte of annotating, and complete and weigh;
(b) sealed cell liquid injection port;
(c) by clean cell cover plate (1) clean, under normal temperature environment, leave standstill 2.0 hours to 24.0 hours;
(d), after having left standstill, battery is carried out to precharge;
(e) complete after precharge, under normal temperature environment, leave standstill 0.5 hour to 36.0 hours, open the steam vent on cell cover plate, carry out vacuumizing and exhausting;
(f), after drained inside battery waste gas, with the steam vent on steel ball sealed cell upper cover plate, and reinforce with glue;
(g) by battery standing under normal temperature environment, and battery is continued and is filled.
2. the sealing chemical synthesizing method of lithium ion battery according to claim 1, is characterized in that: in step (d), 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, is characterized in that: described step (b) adopts the mode of laser welding to seal 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 |
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| CN201410383621.2A CN104167566B (en) | 2014-08-06 | 2014-08-06 | A kind of sealing chemical synthesizing method of lithium ion battery |
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| CN104167566A true CN104167566A (en) | 2014-11-26 |
| CN104167566B CN104167566B (en) | 2017-03-15 |
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Cited By (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 |
| CN113903998A (en) * | 2021-09-30 | 2022-01-07 | 蜂巢能源科技有限公司 | Lithium ion battery and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1233463A2 (en) * | 2001-02-16 | 2002-08-21 | Wilson Greatbatch Ltd. | Apparatus for releasing gases from rechargeable lithium electrochemical cells during the formation stage of manufacturing |
| 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 |
| 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 |
| 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 |
| US20130288130A1 (en) * | 2012-04-30 | 2013-10-31 | Samsung Sdi Co., Ltd. | Negative electrode for rechargeable lithium battery, rechargeable lithium battery including same and method of preparing rechargeable lithium 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 |
-
2014
- 2014-08-06 CN CN201410383621.2A patent/CN104167566B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1233463A2 (en) * | 2001-02-16 | 2002-08-21 | Wilson Greatbatch Ltd. | Apparatus for releasing gases from rechargeable lithium electrochemical cells during the formation stage of manufacturing |
| 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 |
| 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 |
| 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 |
| US20130288130A1 (en) * | 2012-04-30 | 2013-10-31 | Samsung Sdi Co., Ltd. | Negative electrode for rechargeable lithium battery, rechargeable lithium battery including same and method of preparing rechargeable lithium 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 |
Cited By (4)
| 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 |
| CN113903998A (en) * | 2021-09-30 | 2022-01-07 | 蜂巢能源科技有限公司 | Lithium ion battery and preparation method thereof |
| 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 |
| WO2023050769A1 (en) * | 2021-09-30 | 2023-04-06 | 蜂巢能源科技股份有限公司 | Lithium ion battery and manufacturing method therefor |
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| CN104167566B (en) | 2017-03-15 |
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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. |
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