CN109407721A - Cooling system at a slow speed and method for lithium ion battery chemical conversion - Google Patents
Cooling system at a slow speed and method for lithium ion battery chemical conversion Download PDFInfo
- Publication number
- CN109407721A CN109407721A CN201710700009.7A CN201710700009A CN109407721A CN 109407721 A CN109407721 A CN 109407721A CN 201710700009 A CN201710700009 A CN 201710700009A CN 109407721 A CN109407721 A CN 109407721A
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- Prior art keywords
- temperature
- slow speed
- cooling
- lithium ion
- cooler
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- 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
- H01M10/0404—Machines for assembling batteries
-
- 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
- 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
-
- 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)
- Secondary Cells (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a kind of cooling systems at a slow speed and method for lithium ion battery chemical conversion, comprising: host computer and data collector connected to it；Temperature sensor, pressure sensor and temperature controller connect the data collector and at a slow speed cooler；Cooler connection feeding manipulator and flow controller at a slow speed；Wherein the feeding manipulator enters in cooler at a slow speed for clamping battery core；The flow controller is used to control the flow of cooling water in cooler at a slow speed.By the above-mentioned means, the present invention can be realized the control of the cooling at a slow speed to high-temperature clamp formation device, formation effect and battery first charge-discharge efficiency are promoted.
Description
Technical field
The present invention relates to technical field of lithium ion, more particularly, to a kind of drop at a slow speed for lithium ion battery chemical conversion
Warm system and method.
Background technique
Technique, device category currently used for formation of Li-ion batteries is various, the shadow of chemical synthesis technology and equipment to lithium battery performance
Sound is most important, seriously affects capacity, uniform performance, cycle performance of lithium battery etc., solves and improve chemical synthesis technology, equipment
The problem of it is significant.
Existing many automation high-temperature clamp formation devices are used for formation of Li-ion batteries, since this equipment is a kind of simple
High-temperature clamp equipment, can not achieve and cool down at a slow speed, but directly be rapidly decreased to room temperature from high temperature.After chemical conversion, due to positive lithium from
Son is not yet completely embedded into negative electrode material interstitial void, some is stopped in diaphragm hole and negative electrode material surface.
Since temperature is higher, electrolysis fluid viscosity is lower, and electrolytic conductivity is higher, and motor material ion diffusion velocity is got over
Fastly, therefore polarization is smaller, and the formation effect of battery is better.Temperature is reduced rapidly to room temperature after high-temperature clamp chemical conversion, is just affected
Not yet it is embedded into the migration velocity of the lithium ion in negative electrode material interstitial void, reduces the efficiency of battery first charge-discharge, subtract
The capacity of small material plays.
Summary of the invention
The technical problems to be solved by the present invention are: provide it is a kind of for lithium ion battery chemical conversion cooling system at a slow speed and
Method, realization cool down at a slow speed, promote formation effect and battery first charge-discharge efficiency.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: provide a kind of for lithium ion battery
At cooling system at a slow speed, comprising:
Host computer；
The data collector being connect with the host computer；
Temperature sensor, pressure sensor and the temperature controller being connect respectively with the data collector；
The cooler at a slow speed being connect simultaneously with the temperature sensor, pressure sensor and temperature controller；
The feeding manipulator and flow controller being connect respectively with the cooler at a slow speed；Wherein
The feeding manipulator enters in cooler at a slow speed for clamping battery core；
The flow controller is used to control the flow of cooling water in cooler at a slow speed.
Wherein, the cooler at a slow speed includes multiple groups fixture, and every group of fixture includes aluminum clamping plate, cooling piece and silica gel heating
Plate.
Wherein, the cooler at a slow speed includes 24 groups of fixtures.
Wherein, the data collector is equipped with multiple data communication interfaces, and passes through the data communication interface and institute
State host computer, temperature sensor, pressure sensor and temperature controller communication connection.
Wherein, the temperature controller is connect by temperature-control circuit with the flow controller.
Wherein, the host computer is programmable logic controller (PLC).
Wherein, the aluminum clamping plate is using Horizontal layer pushes away, servo motor pressurizes；25 pieces of drops are equipped in the cooling piece
Warm aluminium sheet, every block of cooling aluminium sheet is interior to be equipped with circulation waterway, and circulation waterway is in parallel.
In order to solve the above-mentioned technical problem, the present invention also provides a kind of cooling sides at a slow speed for lithium ion battery chemical conversion
Method includes the following steps:
S1: temperature sensor, pressure sensor obtain temperature data and pressure data in high-temperature clamp formation device, and are transferred to
Data collector；
S2: the temperature data of step S1 and pressure data are transferred to host computer by data collector；
S3: whether upper computer detection temperature data is the first temperature,
If so, thening follow the steps S4；
Conversely, thening follow the steps S40: start-up temperature controller, and return step S1；
Whether S4: detecting in cooler at a slow speed has battery core,
If so, thening follow the steps S5；
Conversely, thening follow the steps S50: PC control feeding manipulator clamps battery core and enters in cooler at a slow speed, and returns to step
Rapid S4；
S5: whether upper computer detection rate of temperature fall is setting in rate period,
If so, thening follow the steps S6；
Conversely, thening follow the steps S60: flow controller controls the cooling water flow in cooler at a slow speed；
S6: whether upper computer detection cools to second temperature,
If so, thening follow the steps S7；
Conversely, thening follow the steps S70: temperature sensor continues temperature collection data, and is transferred to data collector；
S7: upper computer detection temperature fall time whether be in the cooling time of section,
If so, terminating process；
Conversely, thening follow the steps S60.
Wherein, if between detecting temperature fall time in step S7 while cooling in section when, return step S1.
It wherein, further include step S0 before step S1: preset first temperature, setting rate period, second temperature and cold
But time interval.
The beneficial effects of the present invention are: it is different from the prior art, the present invention passes through temperature inductor and pressure inductor
It senses related data, and is transferred to data collector, the detection of data is judged by host computer, correspondingly control is carried out and adjusts
Section realizes that the cooling at a slow speed to high-temperature clamp formation device controls.By the above-mentioned means, the present invention can cool down at a slow speed, promoted
Formation effect and battery first charge-discharge efficiency.
Detailed description of the invention
Fig. 1 is at a slow speed cooling device structural schematic diagram of the present invention for lithium ion battery chemical conversion；
Fig. 2 is the structural schematic diagram of cooling piece in Fig. 1；
Fig. 3 is the circulation waterway schematic diagram in Fig. 2 in cooling piece；
Flow diagram of Fig. 4 present invention for the method for cooling device at a slow speed of lithium ion battery chemical conversion.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
Fig. 1 ~ Fig. 3 is please referred to, 101 be host computer in Fig. 1, and in a specific embodiment, host computer 101 is programmable patrols
Controller PLC is collected, 102 be data acquisition circuit (i.e. data collector), and 103 and 104 be several support pressures, the pressure of temperature
Force snesor and temperature sensor, 105 be temperature controller data, and 106,107 and 108 be the main composition mould of cooler at a slow speed
Block is aluminum clamping plate 106, refrigerating module (i.e. cooling piece) 107 and silica gel heating plate 108 respectively, and by 24 module group structures
At 109 be last block fixture composition mechanism of aluminum clamping plate, and 110 be feeding manipulator, and 111 be flow controller.
Wherein there are multiple data communication interfaces for data acquisition circuit 102.One end and one or more pressure sensors
103, the equipment such as temperature sensor 104 and temperature controller 105 connect, to acquire data, and the other end of temperature controller 105
It is connect by temperature-control circuit with flow controller.
At work, host computer 101 receives the data of data acquisition circuit 102, these data include by temperature sensor
The temperature information of the aluminum clamping plate 106 of 104 feedbacks, PLC preliminary analysis judge whether temperature collection information is melted into high-temperature clamp
In temperature controlling range, if it is determined that will be not processed in control range.Conversely, judge temperature by PLC, and to flow control
Device 111 sends signal, be heated in technological temperature control range by temperature controller 105, then to host computer feedback letter
Number, battery core is clamped by feeding manipulator 110 and is put into the clamping plate heated, the pressure signal conveyed by pressure sensor 103
To PLC, then pressurize to battery core.Next start to cool down at a slow speed to battery core, by the program setting to host computer 110, to electricity
Core carries out cooling control at a slow speed, is returned to the data of host computer 101 in real time by temperature sensor 104, leads to multipair refrigerating module 107
The flow of cooling water controls cooling velocity, if cooling velocity is too fast, the signal passed back by temperature sensor 104 can be right
107 cooling water flow of refrigerating module adjusts rapidly, finally realizes and cools down at a slow speed.
As shown in Fig. 2 ~ Fig. 3, above-mentioned refrigerating module 107 is from left to right further broken into 25 pieces of identical aluminium sheet cooling moulds
Block (201 ~ 225), i.e. cooling aluminium sheet, are equipped with circulation waterway, and each circulation waterway is in parallel in cooling module (201 ~ 225).
When cooling, cooling water flows into jig plate interior conduit by each parallel interface V1 of cooling water pipeline first, passes through two inner tubes in parallel
Road is pooled to each water outlet pipeline V2 in parallel, realizes heat exchanging process.
Above-mentioned silica gel heating plate 108, connect with temperature controller 105 and flow controller 111 respectively.Its major function exists
In when PLC detects aluminium sheet temperature lower than set temperature value, then PLC issues temperature-control circuit and instructs, temperature controller
It begins to warm up, aluminium sheet is made to be heated to presetting temperature value.Conversely, the real time data that PLC will be acquired by data acquisition circuit 102
According to the production requirement to cool down at a slow speed, the cooling water flow velocity in 107 pairs of refrigerating module cooling aluminium sheets is cooperated to control, until
PLC receives the temperature value that temperature sensor 104 is passed back and judges temperature decrease rate, PLC intelligent selection real time data
Data acquisition and transmission are controlled, realize that accurately temperature controls.
When using above-mentioned apparatus, present invention cooling work flow diagram is as shown in Figure 4.It is described as follows:
Step 301: starter initializes system, reads device temperature, pressure, product blanking；
Step 302: whether detection fixture aluminium sheet temperature arrives assigned temperature,
If not up to formulating temperature (i.e. the first temperature), 303 are thened follow the steps: display screen display fixture aluminium sheet temperature information,
Start-up temperature controller；
If reaching the first temperature, 304 are thened follow the steps: whether having had battery core in detection fixture,
If thening follow the steps 305 without battery core: transferring data to PLC, control feeding manipulator clamping battery core is put into fixture
In (i.e. cooler at a slow speed)；
If there is battery core, then follow the steps 306: whether detection rate of temperature fall is being arranged in range,
If thening follow the steps 307 beyond within the scope of rate of temperature fall: associated temperature, pressure information are acquired by data acquisition circuit,
Not in control range, PLC makes a response rapidly for rate of temperature fall or temperature, carries out control change to cooling water flow, makes temperature
In control range；
If rate of temperature fall is fallen in rate period, 308 are thened follow the steps: judging whether temperature arrived setting value lower limit (i.e.
Two temperature),
If not cooling to lower limit value, then follow the steps 309: the information passed back by temperature sensor is judged by PLC, temperature
When degree is not up to setting value, work on；
If having cooled to lower limit value, then follow the steps 310: judge whether setting time has arrived at (i.e. whether while cooling between
Cooling is completed in by stages),
If exceeding section cooling time, then follow the steps 311: by presetting cooling time at a slow speed, to cooling rate at a slow speed into
Row control, not up to setting value, work on；
If completing cooling between while cooling in section, 312 are thened follow the steps: terminating process.
Wherein, when there is multiple gradient cooling, if cooling is completed between while cooling in section, return step S301,
Repeat above-mentioned process.
Since existing many automation high-temperature clamp formation devices are a kind of simple high-temperature clamp equipment, can not achieve slow
Prompt drop temperature, is directly rapidly decreased to room temperature from high temperature.After chemical conversion, since positive lithium ion is not yet completely embedded between negative electrode material lattice
In gap, some is stopped in diaphragm hole and negative electrode material surface.Temperature is higher, and electrolysis fluid viscosity is lower, electrolysis
Liquid conductivity is higher, and motor material ion diffusion velocity is faster, therefore it is smaller to polarize, and the formation effect of battery is better.And it uses
Cooling system and method at a slow speed after high-temperature clamp of the present invention chemical conversion, can continue temperature is kept to allow not yet to be embedded into cathode
Lithium ion continuation in material lattice gap continues to move in negative electrode material interstitial void under high ionic mobility, improves
The efficiency of battery first charge-discharge reduces battery capacity loss.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of cooling system at a slow speed for lithium ion battery chemical conversion characterized by comprising
Host computer；
The data collector being connect with the host computer；
Temperature sensor, pressure sensor and the temperature controller being connect respectively with the data collector；
The cooler at a slow speed being connect simultaneously with the temperature sensor, pressure sensor and temperature controller；
The feeding manipulator and flow controller being connect respectively with the cooler at a slow speed；Wherein
The feeding manipulator enters in cooler at a slow speed for clamping battery core；
The flow controller is used to control the flow of cooling water in cooler at a slow speed.
2. it is according to claim 1 for lithium ion battery chemical conversion cooling system at a slow speed, which is characterized in that it is described at a slow speed
Cooler includes multiple groups fixture, and every group of fixture includes aluminum clamping plate, cooling piece and silica gel heating plate.
3. it is according to claim 2 for lithium ion battery chemical conversion cooling system at a slow speed, which is characterized in that it is described at a slow speed
Cooler includes 24 groups of fixtures.
4. the cooling system according to claim 1 at a slow speed for lithium ion battery chemical conversion, which is characterized in that the data
Collector is equipped with multiple data communication interfaces, and passes through the data communication interface and the host computer, temperature sensor, pressure
Force snesor and temperature controller communication connection.
5. the cooling system according to claim 1 at a slow speed for lithium ion battery chemical conversion, which is characterized in that the temperature
Controller is connect by temperature-control circuit with the flow controller.
6. the cooling system according to claim 1 at a slow speed for lithium ion battery chemical conversion, which is characterized in that described upper
Machine is programmable logic controller (PLC).
7. the cooling system according to claim 1 or 2 at a slow speed for lithium ion battery chemical conversion, which is characterized in that described
Aluminum clamping plate is using Horizontal layer pushes away, servo motor pressurizes；25 blocks of cooling aluminium sheets, every block of cooling aluminium are equipped in the cooling piece
Circulation waterway is equipped in plate, and circulation waterway is in parallel.
8. a kind of cool-down method at a slow speed for lithium ion battery chemical conversion, which comprises the steps of:
S1: temperature sensor, pressure sensor obtain temperature data and pressure data in high-temperature clamp formation device, and are transferred to
Data collector；
S2: the temperature data of step S1 and pressure data are transferred to host computer by data collector；
S3: whether upper computer detection temperature data is the first temperature,
If so, thening follow the steps S4；
Conversely, thening follow the steps S40: start-up temperature controller, and return step S1；
Whether S4: detecting in cooler at a slow speed has battery core,
If so, thening follow the steps S5；
Conversely, thening follow the steps S50: PC control feeding manipulator clamps battery core and enters in cooler at a slow speed, and returns to step
Rapid S4；
S5: whether upper computer detection rate of temperature fall is setting in rate period,
If so, thening follow the steps S6；
Conversely, thening follow the steps S60: flow controller controls the cooling water flow in cooler at a slow speed；
S6: whether upper computer detection cools to second temperature,
If so, thening follow the steps S7；
Conversely, thening follow the steps S70: temperature sensor continues temperature collection data, and is transferred to data collector；
S7: upper computer detection temperature fall time whether be in the cooling time of section,
If so, terminating process；
Conversely, thening follow the steps S60.
9. the cool-down method according to claim 8 at a slow speed for lithium ion battery chemical conversion, which is characterized in that in step S7
If when between detecting temperature fall time while cooling in section, return step S1.
10. the cool-down method according to claim 8 at a slow speed for lithium ion battery chemical conversion, which is characterized in that in step
It further include step S0 before S1: preset first temperature, setting rate period, second temperature and section cooling time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700009.7A CN109407721A (en) | 2017-08-16 | 2017-08-16 | Cooling system at a slow speed and method for lithium ion battery chemical conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700009.7A CN109407721A (en) | 2017-08-16 | 2017-08-16 | Cooling system at a slow speed and method for lithium ion battery chemical conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109407721A true CN109407721A (en) | 2019-03-01 |
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ID=65454308
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710700009.7A Pending CN109407721A (en) | 2017-08-16 | 2017-08-16 | Cooling system at a slow speed and method for lithium ion battery chemical conversion |
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| CN106207293A (en) * | 2016-07-25 | 2016-12-07 | 珠海光宇电池有限公司 | The chemical synthesizing method of lithium ion battery |
| CN106299514A (en) * | 2016-08-31 | 2017-01-04 | 浙江超威创元实业有限公司 | A kind of compound method for lithium ion battery |
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Patent Citations (9)
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|---|---|---|---|---|
| CN204088497U (en) * | 2014-07-01 | 2015-01-07 | 珠海光宇电池有限公司 | Lithium ion battery cold-pressing clamping apparatus and cold press |
| CN204156033U (en) * | 2014-07-17 | 2015-02-11 | 毛铁军 | A kind of newcooperative medical system forming apparatus |
| CN204462904U (en) * | 2015-04-02 | 2015-07-08 | 杨国乐 | A kind of temperature control system be applied on Battery formation equipment |
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Application publication date: 20190301 |