CN109167114A - A kind of four series connection forming technologies of large capacity square battery - Google Patents
A kind of four series connection forming technologies of large capacity square battery Download PDFInfo
- Publication number
- CN109167114A CN109167114A CN201810987687.0A CN201810987687A CN109167114A CN 109167114 A CN109167114 A CN 109167114A CN 201810987687 A CN201810987687 A CN 201810987687A CN 109167114 A CN109167114 A CN 109167114A
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- Prior art keywords
- large capacity
- conducting wire
- battery
- processing platform
- sealed cover
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
-
- 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
- H01M10/04—Construction or manufacture in general
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/52—Removing gases inside the secondary cell, e.g. by absorption
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the 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
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of four series connection forming technologies of large capacity square battery, specifically includes the following steps: step 1, equipment prepares: preparing one piece of top and is pasted with rubber layer, inside is equipped with heating element and running through has the plate of gas vent as processing platform, it is ready for a Battery formation machine, one inside is equipped with the hemispherical transparent sealed cover of gas pressure sensor and temperature sensor, one vaccum-pumping equipment, a piece exhaust pipe, a piece conducting wire for being connected with socket and multiple groups conducting wire group, each group of conducting wire group includes the conducting wire for being connected with plug, three plain conductors, eight crocodile clips.This invention simplifies the modes of connection of battery and Battery formation machine, improve formation efficiency, simplify the chemical synthesis technology of battery, have saved chemical conversion time and cost of labor, improve large capacity square battery indices.
Description
Technical field
The present invention relates to high capacity cell forming technology field, in particular to a kind of four series connectionization of large capacity square battery
At technology.
Background technique
Battery formation is the process for being activated the battery made by certain charge and discharge algorithm, traditional chemical conversion
Technique can generate gas in formation process, these gases generated need to remove, and not so will affect the performance and shadow of battery
Ring the cycle life of battery.
Battery formation technique in the prior art when being melted into large capacity rectangular cell, can not effectively and more just
The gas that prompt removal generates, and the process is more complicated for whole chemical conversion, increases battery production manufacturing cost, the significantly side of constraining
Type high capacity cell industrial application.
Therefore, it is necessary to solve the above problems that a kind of four series connection forming technologies of large capacity square battery are invented.
Summary of the invention
The purpose of the present invention is to provide a kind of four series connection forming technologies of large capacity square battery, simplify battery and electricity
Pond be melted into machine the mode of connection, improve formation efficiency, simplify the chemical synthesis technology of battery, saved the chemical conversion time with manually at
This, improves large capacity square battery indices, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of four series connection chemical conversions of large capacity square battery
Technology, specifically includes the following steps:
Step 1: equipment prepares: preparing one piece of top and be pasted with rubber layer, internal be equipped with heating element and through there is gas vent
Plate is ready for a Battery formation machine, an inside is equipped with gas pressure sensor and temperature passes as processing platform
The hemispherical transparent sealed cover of sensor, a vaccum-pumping equipment, an exhaust pipe, a conducting wire and multiple groups for being connected with socket
Conducting wire group, each group of conducting wire group include one and are connected with the conducting wire of plug, three plain conductors, eight crocodile clips；
Step 2: equipment assemble: eight crocodile clips in each group of conducting wire group are connected respectively to be connected with plug conducting wire and
The both ends of three plain conductors, then connect the conducting wire for being connected with socket with Battery formation machine, and vaccum-pumping equipment is passed through row
Tracheae is attached with the gas vent on plate；
Step 3: large capacity rectangular cell prepares: choosing multiple large capacity rectangular cells, the quantity of large capacity rectangular cell is to lead
Four times of line group quantity；
Step 4: large capacity rectangular cell is grouped: multiple large capacity rectangular cells of selection being grouped, every group includes four
Then large capacity rectangular cell after grouping is totally placed at the top of processing platform by large capacity rectangular cell；
Step 5: large capacity rectangular cell connects: first, in accordance with series circuit connection request by the crocodile clip at plain conductor both ends
It is clamped on the anode and cathode of two neighboring large capacity rectangular cell respectively, to be connected with crocodile clip using three both ends
Four large capacity rectangular cells are attached by conducting wire, then clamp the crocodile clip at the both ends for being connected with the conducting wire of plug respectively
In the cathode of the anode and the 4th large capacity rectangular cell of first large capacity rectangular cell, to keep four large capacities rectangular
Battery forms a series circuit；
Step 6: equipment connects: after multiple groups large capacity rectangular cell is connected respectively, inside being equipped with gas pressure and is passed
The hemispherical transparent sealing the cover of sensor and temperature sensor makes to be connected with plug at the top of large capacity rectangular cell
One end that conducting wire is connected with plug is located at outside transparent sealed cover；
Step 7: exhaust: extracting the air between transparent sealed cover and processing platform out using vaccum-pumping equipment, pass through gas pressure
Gas pressure intensity between force snesor real-time detection transparent sealed cover and processing platform is closed and is taken out when pressure reaches setting value
Vacuum equipment；
Step 8: chemical conversion: and then by one of them be connected with the plug on the conducting wire of plug be inserted into it is concatenated with Battery formation machine
Be connected on the socket on the conducting wire of socket so that the series circuit that is formed of Battery formation machine and four large capacity rectangular cells into
Row series connection, then starts Battery formation machine, and Battery formation machine carries out chemical conversion treatment to four large capacity rectangular cells；
Step 9: secondary exhaust: in formation process, inside battery generates gas, the gas between transparent sealed cover and processing platform
Pressure changes, and is then again started up vaccum-pumping equipment and detects transparent sealed cover and processing platform by gas pressure sensor
Between gas pressure intensity so that inspection transparent sealed cover and processing platform between gas pressure intensity be returned to setting value, thus will change
At the gas discharge generated in the process；
Step 10: heating: for the heating element inside processing platform carry out be powered and by temperature sensor real-time monitoring it is transparent
Temperature between seal closure and processing platform, heating element generate heat after passing through, and are promoted between transparent sealed cover and processing platform
Temperature, so that the temperature between transparent sealed cover and processing platform reaches 42-48 degrees Celsius, in order to carry out to air therein
It is dry, eliminate the steam in air；
Step 11: batch processing: after chemical conversion, plug current on socket being pulled up, another plug is changed, opens again
Dynamic Battery formation machine, repeat the above steps eight, step 9 and step 10, until having handled all large capacity rectangular cells；
Step 12: discharging: large capacity rectangular cell all after chemical conversion, releases between transparent sealed cover and processing platform
Then negative pressure state is removed on positive and negative anodes of the crocodile clip by large capacity rectangular cell, then again by battery by taking on processing platform
It is lower.
Preferably, transparent sealed cover bottom passes through waterproof glue sticking by rubber seal in the step 1.
Preferably, flat plate top rubber layer thickness is set as 1-3 centimetres in the step 1.
Preferably, heating element is set as heating resistor in the step 1.
Technical effect and advantage of the invention:
1, then the present invention is successively inserted by multiple groups large capacity rectangular cell is connected with the conducting wire of plug using multiple groups
Enter to on the socket on the concatenated conducting wire for being connected with socket of Battery formation machine, to complete large quantities of heaped capacity rectangular cells
Chemical conversion, operate it is relatively simple, simplify the mode of connection of battery Yu Battery formation machine, improve formation efficiency, simplify electricity
The chemical synthesis technology in pond has saved chemical conversion time and cost of labor, improves large capacity square battery indices；
2, the present invention is by the gas pressure intensity in formation process between real-time detection transparent sealed cover and processing platform and passing through
The gas between transparent sealed cover and processing platform is discharged using vaccum-pumping equipment, to completely eliminate large capacity rectangular cell
The gas generated in formation process avoids gas residue from influencing battery performance and service life；
3, the present invention, will not while in order to effectively eliminate the steam in air by being heated during formation process
The performance of battery is had an impact because temperature is excessively high, ensure that the quality after Battery formation.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The present invention provides four series connection forming technologies of a kind of large capacity square battery as shown in Figure 1, specifically include following step
It is rapid:
Step 1: equipment prepares: preparing one piece of top and be pasted with rubber layer, internal be equipped with heating element and through there is gas vent
Plate is ready for a Battery formation machine, an inside is equipped with gas pressure sensor and temperature passes as processing platform
The hemispherical transparent sealed cover of sensor, a vaccum-pumping equipment, an exhaust pipe, a conducting wire and multiple groups for being connected with socket
Conducting wire group, each group of conducting wire group include one and are connected with the conducting wire of plug, three plain conductors, eight crocodile clips；
Step 2: equipment assemble: eight crocodile clips in each group of conducting wire group are connected respectively to be connected with plug conducting wire and
The both ends of three plain conductors, then connect the conducting wire for being connected with socket with Battery formation machine, and vaccum-pumping equipment is passed through row
Tracheae is attached with the gas vent on plate；
Step 3: large capacity rectangular cell prepares: choosing multiple large capacity rectangular cells, the quantity of large capacity rectangular cell is to lead
Four times of line group quantity；
Step 4: large capacity rectangular cell is grouped: multiple large capacity rectangular cells of selection being grouped, every group includes four
Then large capacity rectangular cell after grouping is totally placed at the top of processing platform by large capacity rectangular cell；
Step 5: large capacity rectangular cell connects: first, in accordance with series circuit connection request by the crocodile clip at plain conductor both ends
It is clamped on the anode and cathode of two neighboring large capacity rectangular cell respectively, to be connected with crocodile clip using three both ends
Four large capacity rectangular cells are attached by conducting wire, then clamp the crocodile clip at the both ends for being connected with the conducting wire of plug respectively
In the cathode of the anode and the 4th large capacity rectangular cell of first large capacity rectangular cell, to keep four large capacities rectangular
Battery forms a series circuit；
Step 6: equipment connects: after multiple groups large capacity rectangular cell is connected respectively, inside being equipped with gas pressure and is passed
The hemispherical transparent sealing the cover of sensor and temperature sensor makes to be connected with plug at the top of large capacity rectangular cell
One end that conducting wire is connected with plug is located at outside transparent sealed cover；
Step 7: exhaust: extracting the air between transparent sealed cover and processing platform out using vaccum-pumping equipment, pass through gas pressure
Gas pressure intensity between force snesor real-time detection transparent sealed cover and processing platform is closed and is taken out when pressure reaches setting value
Vacuum equipment；
Step 8: chemical conversion: and then by one of them be connected with the plug on the conducting wire of plug be inserted into it is concatenated with Battery formation machine
Be connected on the socket on the conducting wire of socket so that the series circuit that is formed of Battery formation machine and four large capacity rectangular cells into
Row series connection, then starts Battery formation machine, and Battery formation machine carries out chemical conversion treatment to four large capacity rectangular cells；
Step 9: secondary exhaust: in formation process, inside battery generates gas, the gas between transparent sealed cover and processing platform
Pressure changes, and is then again started up vaccum-pumping equipment and detects transparent sealed cover and processing platform by gas pressure sensor
Between gas pressure intensity so that inspection transparent sealed cover and processing platform between gas pressure intensity be returned to setting value, thus will change
At the gas discharge generated in the process；
Step 10: heating: for the heating element inside processing platform carry out be powered and by temperature sensor real-time monitoring it is transparent
Temperature between seal closure and processing platform, heating element generate heat after passing through, and are promoted between transparent sealed cover and processing platform
Temperature, so that the temperature between transparent sealed cover and processing platform reaches 42 degrees Celsius, in order to do to air therein
It is dry, eliminate the steam in air；
Step 11: batch processing: after chemical conversion, plug current on socket being pulled up, another plug is changed, opens again
Dynamic Battery formation machine, repeat the above steps eight, step 9 and step 10, until having handled all large capacity rectangular cells；
Step 12: discharging: large capacity rectangular cell all after chemical conversion, releases between transparent sealed cover and processing platform
Then negative pressure state is removed on positive and negative anodes of the crocodile clip by large capacity rectangular cell, then again by battery by taking on processing platform
It is lower.
In the above-mentioned technical solutions, transparent sealed cover bottom passes through waterproof glue sticking by rubber seal in the step 1
It encloses, flat plate top rubber layer thickness is set as 1-3 centimetres in the step 1, and heating element is set as generating heat in the step 1
Resistance.
Embodiment 2
Unlike above-described embodiment 1:
Step 10: heating: for the heating element inside processing platform carry out be powered and by temperature sensor real-time monitoring it is transparent
Temperature between seal closure and processing platform, heating element generate heat after passing through, and are promoted between transparent sealed cover and processing platform
Temperature, so that the temperature between transparent sealed cover and processing platform reaches 45 degrees Celsius, in order to do to air therein
It is dry, eliminate the steam in air.
Embodiment 3
Unlike above-described embodiment 1 and embodiment 2:
Step 10: heating: for the heating element inside processing platform carry out be powered and by temperature sensor real-time monitoring it is transparent
Temperature between seal closure and processing platform, heating element generate heat after passing through, and are promoted between transparent sealed cover and processing platform
Temperature, so that the temperature between transparent sealed cover and processing platform reaches 48 degrees Celsius, in order to do to air therein
It is dry, eliminate the steam in air.
It is each to choose 20 batteries after above-described embodiment 1-3 chemical conversion and it is detected, obtain following table:
| Detect number | Heating temperature | Performance influences | Steam residual | |
| Embodiment 1 | 20 | 42℃ | Nothing | Have |
| Embodiment 2 | 20 | 45℃ | Nothing | Nothing |
| Embodiment 3 | 20 | 48℃ | Have | Nothing |
As seen from the above table, technical solution provided in embodiment 2 will not be because of while effectively eliminating the steam in air
Temperature is excessively high and has an impact to the performance of battery, ensure that the quality after Battery formation.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of four series connection forming technologies of large capacity square battery, which is characterized in that specifically includes the following steps:
Step 1: equipment prepares: preparing one piece of top and be pasted with rubber layer, internal be equipped with heating element and through there is gas vent
Plate is ready for a Battery formation machine, an inside is equipped with gas pressure sensor and temperature passes as processing platform
The hemispherical transparent sealed cover of sensor, a vaccum-pumping equipment, an exhaust pipe, a conducting wire and multiple groups for being connected with socket
Conducting wire group, each group of conducting wire group include one and are connected with the conducting wire of plug, three plain conductors, eight crocodile clips；
Step 2: equipment assemble: eight crocodile clips in each group of conducting wire group are connected respectively to be connected with plug conducting wire and
The both ends of three plain conductors, then connect the conducting wire for being connected with socket with Battery formation machine, and vaccum-pumping equipment is passed through row
Tracheae is attached with the gas vent on plate；
Step 3: large capacity rectangular cell prepares: choosing multiple large capacity rectangular cells, the quantity of large capacity rectangular cell is to lead
Four times of line group quantity；
Step 4: large capacity rectangular cell is grouped: multiple large capacity rectangular cells of selection being grouped, every group includes four
Then large capacity rectangular cell after grouping is totally placed at the top of processing platform by large capacity rectangular cell；
Step 5: large capacity rectangular cell connects: first, in accordance with series circuit connection request by the crocodile clip at plain conductor both ends
It is clamped on the anode and cathode of two neighboring large capacity rectangular cell respectively, to be connected with crocodile clip using three both ends
Four large capacity rectangular cells are attached by conducting wire, then clamp the crocodile clip at the both ends for being connected with the conducting wire of plug respectively
In the cathode of the anode and the 4th large capacity rectangular cell of first large capacity rectangular cell, to keep four large capacities rectangular
Battery forms a series circuit；
Step 6: equipment connects: after multiple groups large capacity rectangular cell is connected respectively, inside being equipped with gas pressure and is passed
The hemispherical transparent sealing the cover of sensor and temperature sensor makes to be connected with plug at the top of large capacity rectangular cell
One end that conducting wire is connected with plug is located at outside transparent sealed cover；
Step 7: exhaust: extracting the air between transparent sealed cover and processing platform out using vaccum-pumping equipment, pass through gas pressure
Gas pressure intensity between force snesor real-time detection transparent sealed cover and processing platform is closed and is taken out when pressure reaches setting value
Vacuum equipment；
Step 8: chemical conversion: and then by one of them be connected with the plug on the conducting wire of plug be inserted into it is concatenated with Battery formation machine
Be connected on the socket on the conducting wire of socket so that the series circuit that is formed of Battery formation machine and four large capacity rectangular cells into
Row series connection, then starts Battery formation machine, and Battery formation machine carries out chemical conversion treatment to four large capacity rectangular cells；
Step 9: secondary exhaust: in formation process, inside battery generates gas, the gas between transparent sealed cover and processing platform
Pressure changes, and is then again started up vaccum-pumping equipment and detects transparent sealed cover and processing platform by gas pressure sensor
Between gas pressure intensity so that inspection transparent sealed cover and processing platform between gas pressure intensity be returned to setting value, thus will change
At the gas discharge generated in the process；
Step 10: heating: for the heating element inside processing platform carry out be powered and by temperature sensor real-time monitoring it is transparent
Temperature between seal closure and processing platform, heating element generate heat after passing through, and are promoted between transparent sealed cover and processing platform
Temperature, so that the temperature between transparent sealed cover and processing platform reaches 42-48 degrees Celsius, in order to carry out to air therein
It is dry, eliminate the steam in air；
Step 11: batch processing: after chemical conversion, plug current on socket being pulled up, another plug is changed, opens again
Dynamic Battery formation machine, repeat the above steps eight, step 9 and step 10, until having handled all large capacity rectangular cells；
Step 12: discharging: large capacity rectangular cell all after chemical conversion, releases between transparent sealed cover and processing platform
Then negative pressure state is removed on positive and negative anodes of the crocodile clip by large capacity rectangular cell, then again by battery by taking on processing platform
It is lower.
2. four series connection forming technologies of a kind of large capacity square battery according to claim 1, it is characterised in that: the step
Transparent sealed cover bottom is by waterproof glue sticking by rubber seal in rapid one.
3. four series connection forming technologies of a kind of large capacity square battery according to claim 1, it is characterised in that: the step
Flat plate top rubber layer thickness is set as 1-3 centimetres in rapid one.
4. four series connection forming technologies of a kind of large capacity square battery according to claim 1, it is characterised in that: the step
Heating element is set as heating resistor in rapid one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987687.0A CN109167114B (en) | 2018-08-28 | 2018-08-28 | Method for forming four large-capacity square batteries in series connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810987687.0A CN109167114B (en) | 2018-08-28 | 2018-08-28 | Method for forming four large-capacity square batteries in series connection |
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| Publication Number | Publication Date |
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| CN109167114A true CN109167114A (en) | 2019-01-08 |
| CN109167114B CN109167114B (en) | 2020-07-03 |
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| CN201810987687.0A Active CN109167114B (en) | 2018-08-28 | 2018-08-28 | Method for forming four large-capacity square batteries in series connection |
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| CN107834114A (en) * | 2017-12-01 | 2018-03-23 | 惠州市吉美泰电子科技有限公司 | Lithium ion battery parallel connection formation system and technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5998969A (en) * | 1997-05-12 | 1999-12-07 | Nissan Motor Co., Ltd. | Apparatus for regulating state of charge of cells of battery set |
| CN1391707A (en) * | 1999-11-19 | 2003-01-15 | 弗朗哥·斯托克希尔罗 | Storage battery formation device |
| CN101136496A (en) * | 2006-08-31 | 2008-03-05 | 精工爱普生株式会社 | Secondary battery and a method for manufacturing the secondary battery |
| CN102569708A (en) * | 2012-03-06 | 2012-07-11 | 超威电源有限公司 | Auto wire connection matching device for storage batteries and method |
| CN103531859A (en) * | 2013-09-25 | 2014-01-22 | 超威电源有限公司 | Charge-discharge circulation type storage battery internal formation process |
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| Publication number | Publication date |
|---|---|
| CN109167114B (en) | 2020-07-03 |
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