CN108511826A - A kind of chemical synthesizing method of silicon-carbon soft bag lithium ionic cell - Google Patents
A kind of chemical synthesizing method of silicon-carbon soft bag lithium ionic cell Download PDFInfo
- Publication number
- CN108511826A CN108511826A CN201810267322.0A CN201810267322A CN108511826A CN 108511826 A CN108511826 A CN 108511826A CN 201810267322 A CN201810267322 A CN 201810267322A CN 108511826 A CN108511826 A CN 108511826A
- Authority
- CN
- China
- Prior art keywords
- silicon
- soft bag
- lithium ionic
- ionic cell
- bag lithium
- 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.)
- Withdrawn
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
- H01M10/42—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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of chemical synthesizing methods of silicon-carbon soft bag lithium ionic cell, belong to lithium ion battery preparing technical field.The chemical synthesizing method of the present invention, includes the following steps：1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood, then an edge sealing, is shelved, and obtains pretreatment battery；2) pressure for applying 0.2~0.8MPa in pretreatment battery both sides, then carries out first time charging with the multiplying power of 0.01~0.3C, charges to blanking voltage, stand；Second is carried out with the multiplying power of 0.05~3.0C to charge, charge to blanking voltage, be then allowed to stand again；First time charge cutoff voltage is 3.3~3.8V；Second of charge cutoff voltage is 3.5~4.5V.The chemical synthesizing method of the present invention, shortens the time of chemical conversion, improves the efficiency of chemical conversion；Stable SEI films can also be formed, improve cell interface state well；And the blackspot of cell interface can be reduced, improve the flatness and hardness at interface.
Description
Technical field
The present invention relates to a kind of chemical synthesizing methods of silicon-carbon soft bag lithium ionic cell, belong to lithium ion battery technology of preparing neck
Domain.
Background technology
With being continuously increased for the Global Auto volume of holding, largely the caused energy crisis of consumption becomes increasingly one side fuel oil
Seriously, another aspect motor vehicle exhaust emission causes the degree of environmental pollution also increasingly severe.People only pass through technological innovation
New energy is found in development, is reduced discharge, could be alleviated the contradiction of automobile demand and environmental protection.Development is based on electric vehicle
New-energy automobile and electric vehicle, using electric energy replace the fossil fuels such as oil as power as important solution it
One.The advantage that lithium ion battery is high with its energy density, service life is long, environmentally protective becomes new-energy automobile and electric vehicle
Important energy storage device.
For new-energy automobile, the raising of course continuation mileage makes the research and development of high energy density cells become the task of top priority.Existing rank
Section commercial Li-ion battery negative material graphite-like carbon material, but its capacity density is relatively low, it is difficult to meet new-energy automobile
The requirement of high course continuation mileage.Although the theoretical capacity highest in silicium cathode material, silicon particle when deintercalation is managed along with
Volume expansion and shrink be easy to cause granule atomization, fall off and chemical property failure, be restricted applying to.
Since carbon not only has electro-chemical activity, but also there is good electric conductivity and lithium ion permeability, passes through the compound of silicon-carbon
Silicon can be improved, and as negative material, there are problems.Silicon-carbon cathode material is because with high power capacity, low de- lithium current potential, low cost etc.
It is considered as the negative material of the great potentiality of next-generation lithium ion battery.
The introducing of carbon can alleviate the expansion of silicon, but silicon-carbon cathode lithium ion battery in use still can by SEI films
Constantly dissolving and generation.When the SEI films especially formed in formation process are uneven unstable, silicon-carbon cathode lithium ion can be aggravated
The dissolving of SEI films and generation, seriously affect the chemical property of silicon-carbon cathode lithium ion battery, especially follow during battery use
Ring performance and high rate performance.
Invention content
The object of the present invention is to provide a kind of chemical synthesizing methods of silicon-carbon soft bag lithium ionic cell, can improve the steady of SEI films
Qualitative and uniformity.
In order to achieve the goal above, the technical solution adopted in the present invention is：
A kind of chemical synthesizing method of silicon-carbon soft bag lithium ionic cell, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood, then carries out an edge sealing, shelves, pre-processed
Battery；
2) first time charging and then with the multiplying power of 0.01~0.3C is carried out to pretreatment battery, charges to blanking voltage, it is quiet
It sets；Second is carried out with the multiplying power of 0.05~3.0C to charge, charge to blanking voltage again；It is then allowed to stand；First time charge cutoff
Voltage is 3.3~3.8V；Second of charge cutoff voltage is 3.5~4.5V；Charging for the first time, in second of charging process and
Apply 0.2~0.8MPa's in two sides of pretreatment battery during standing between charging for the first time and second of charging
Pressure.
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present invention, shortens the time of chemical conversion, improves the effect of chemical conversion
Rate；Uniform and stable SEI films can also be formed, improve cell interface state well；And the blackspot of cell interface can be reduced,
Improve the flatness and hardness at interface.
Preferably, in step 1), described stand is that vacuum is stood, and the time is 10~30min.Be conducive to using vacuum standing
The exclusion of bubble between positive/negative plate and diaphragm, and the infiltration of electrolyte can be promoted.
Preferably, in step 1), the time vacuumized is 2~9s.Vacuumize, the processing of edge sealing can be in edge sealing
It is carried out on machine.It is vacuumized on edge banding machine, an edge sealing is first to vacuumize 2~9s, a then edge sealing.
Preferably, in step 1), the time shelved be 11~for 24 hours.It is further preferred that in step 1), it is described to put
The temperature set is 40~50 DEG C, and the time is 11~13h.After battery liquid-filling, by battery standing, be conducive to positive/negative plate and diaphragm pair
The infiltration of electrolyte increases battery and protects liquid measure, is conducive to improve its cycle performance.
Since battery cathode sheet ingredient is silicon-carbon, expansion is greater than common graphite, applies to battery in formation process
Pressure can be such that positive/negative plate is bonded with diaphragm and closely advantageously form stable SEI films in formation process.Preferably, it walks
It is rapid 2) in, the pressure of application is 0.6~0.8MPa.
Preferably, in step 2), the time stood between charging for the first time and second of charging is 8~12min.
Preferably, in step 2), temperature when charging for the first time is charged with second is 40~50 DEG C.For the first time charging and
The temperature stood between second of charging is identical as the temperature of first time charging.
Preferably, in step 2), the multiplying power of charging is 0.02C, blanking voltage 3.4V for the first time；Times of second of charging
Rate is 0.08C, blanking voltage 3.75V.
The SEI film characters that charging can be made to be formed are stood after battery is charged and composition more tends towards stability, and are made
With the holding for being conducive to chemical property in the process.Preferably, in step 2), the time stood after second of charging is 11
~for 24 hours.After charging, if stood using room temperature, 20~be preferred for 24 hours, if using quiescence in high temperature 11~13h for
It is preferred that this is because quiescence in high temperature overlong time, inside battery side reaction can accordingly increase.It is further preferred that in step 2),
The temperature stood after second of charging is 45~80 DEG C, and the time is 11~13h.
Specific implementation mode
Technical scheme of the present invention is further described below in conjunction with specific implementation mode.
Embodiment 1
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, normal temperature shelf for 24 hours, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at normal temperatures, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Embodiment 2
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, 40 DEG C are shelved for 24 hours, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at normal temperatures, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Embodiment 3
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing shelves 12h at 45 DEG C, obtains pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at 45 DEG C, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Embodiment 4
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, then shelved for 24 hours at 50 DEG C, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at 40 DEG C, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, then stands 12h at 70 DEG C.
Embodiment 5
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, normal temperature shelf for 24 hours, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at 50 DEG C, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Embodiment 6
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, normal temperature shelf for 24 hours, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at 50 DEG C, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, then stands 12h at 80 DEG C.
Embodiment 7
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, normal temperature shelf for 24 hours, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at normal temperatures, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, then stands 12h at 70 DEG C.
Embodiment 8
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 20min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, 45 DEG C are shelved 13h, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at 45 DEG C, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Embodiment 9
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, 40 DEG C are shelved 13h, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.8MPa is installed on pretreatment battery, then at 50 DEG C, first with 0.01C's
Multiplying power carries out first time charging, charges to 3.3V, stands 8min, then carry out second with the multiplying power of 0.05C and charge, charges to
3.5V；Chemical conversion folder is removed, then stands 11h at 80 DEG C.
Embodiment 10
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 30min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, 50 DEG C are shelved 11h, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.6MPa is installed on pretreatment battery, then at 40 DEG C, first with 0.1C's
Multiplying power carries out first time charging, charges to 3.5V, stands 12min, then carry out second with the multiplying power of 2C and charge, charges to
3.75V；Chemical conversion folder is removed, then stands 13h at 45 DEG C.
Embodiment 11
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, normal temperature shelf for 24 hours, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.2MPa is installed on pretreatment battery, then at normal temperatures, first with 0.3C's
Multiplying power carries out first time charging, charges to 3.8V, stands 10min, then carry out second with the multiplying power of 3C and charge, charges to
4.5V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Embodiment 12
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 2s is then vacuumized using edge banding machine
Secondary edge sealing, 40 DEG C are shelved 12h, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at normal temperatures, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Embodiment 13
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 30min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, 45 DEG C are shelved 12h, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at normal temperatures, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Embodiment 14
The chemical synthesizing method of the silicon-carbon soft bag lithium ionic cell of the present embodiment, includes the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood into 10min, it is latter that 9s is then vacuumized using edge banding machine
Secondary edge sealing, 45 DEG C are shelved for 24 hours, obtain pretreatment battery；
2) pressure that battery formation clamp applies 0.7MPa is installed on pretreatment battery, then at normal temperatures, first with 0.02C's
Multiplying power carries out first time charging, charges to 3.4V, stands 10min, then carry out second with the multiplying power of 0.08C and charge, charges to
3.75V；Chemical conversion folder is removed, is then stood at normal temperatures for 24 hours.
Experimental example
The identical soft bag lithium ionic cell of specification that same batch is produced, is divided into 14 groups, embodiment 1~14 is respectively adopted
The chemical synthesizing method of soft bag lithium ionic cell be melted into, full electricity dismantling, flat is carried out to soft bag lithium ionic cell after chemical conversion
Whole degree, hardness test, loop test and high rate performance test, test method are：The interface state of full electricity dismantling observation negative plate,
Surface whether there is blackspot；Whether flatness, hardness and the standard sample comparison of soft bag lithium ionic cell is qualified；Loop test is
By soft bag lithium ionic cell with 1C current charging and dischargings, cycle compares capacity retention ratio after 500 weeks；Multiplying power test is by Soft Roll lithium
Ion battery compares capacity retention ratio with 1C, 2C, 3C current discharge.Test result is shown in Tables 1 and 2.
The result of 1 all-round property testing of table
The cycle performance and high rate performance test result of soft bag lithium ionic cell after the chemical conversion of table 2
By Tables 1 and 2 it can be seen that the silicon-carbon soft bag lithium ionic cell of Examples 1 to 9, embodiment 12 and embodiment 13
Without blackspot, interface state is good at interface, and hardness and flatness are preferable, and corresponding cycle performance and high rate performance are also preferable.And it is real
Apply example 10 and embodiment 11 and 14 lithium ion battery interface of embodiment there are less amount of blackspot, corresponding cycle performance and times
Rate performance is poor.It can be seen that the process conditions of Examples 1 to 9, embodiment 12 and embodiment 13 can effectively improve battery core
Interface state, can be formed stablize, fine and close SEI films, from prepared by battery there is good cycle performance and high rate performance.
If producing battery in enormous quantities, the corresponding process conditions of optimal formation efficiency can be selected from embodiment.
Claims (10)
1. a kind of chemical synthesizing method of silicon-carbon soft bag lithium ionic cell, it is characterised in that：Include the following steps：
1) vacuum after silicon-carbon soft bag lithium ionic cell fluid injection is stood, then carries out an edge sealing, shelves, obtain pretreatment electricity
Pond；
2) first time charging and then with the multiplying power of 0.01~0.3C is carried out to pretreatment battery, blanking voltage is charged to, stands；Again
Second is carried out with the multiplying power of 0.05~3.0C to charge, and charges to blanking voltage；It is then allowed to stand；First time charge cutoff voltage is
3.3~3.8V；Second of charge cutoff voltage is 3.5~4.5V；For the first time in charging, second of charging process and for the first time
Apply the pressure of 0.2~0.8MPa during standing between charging and second of charging in two sides of pretreatment battery.
2. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 1), institute
It is that vacuum is stood to state standing, and the time is 10~30min.
3. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 1), take out
The time of vacuum is 2~9s.
4. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 1), institute
State time for shelving be 11~for 24 hours.
5. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 1), institute
It is 40~50 DEG C to state the temperature shelved, and the time is 11~13h.
6. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 2), apply
The pressure added is 0.6~0.8MPa.
7. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 2), the
The time stood between primary charging and second of charging is 8~12min.
8. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 2), the
Temperature when primary charging and second of charging is 40~50 DEG C.
9. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 2), the
The time stood after recharging be 11~for 24 hours.
10. the chemical synthesizing method of silicon-carbon soft bag lithium ionic cell according to claim 1, it is characterised in that：In step 2), the
The temperature stood after recharging is 45~80 DEG C, and the time is 11~13h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267322.0A CN108511826A (en) | 2018-03-28 | 2018-03-28 | A kind of chemical synthesizing method of silicon-carbon soft bag lithium ionic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267322.0A CN108511826A (en) | 2018-03-28 | 2018-03-28 | A kind of chemical synthesizing method of silicon-carbon soft bag lithium ionic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108511826A true CN108511826A (en) | 2018-09-07 |
Family
ID=63379109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810267322.0A Withdrawn CN108511826A (en) | 2018-03-28 | 2018-03-28 | A kind of chemical synthesizing method of silicon-carbon soft bag lithium ionic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108511826A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600062A (en) * | 2019-03-22 | 2020-08-28 | 骆驼集团新能源电池有限公司 | Formation method for improving cycle life of silicon-carbon soft package lithium ion battery |
| CN111613839A (en) * | 2020-06-05 | 2020-09-01 | 惠州市太能锂电有限公司 | Novel ultrathin battery and preparation process thereof |
| CN111682272A (en) * | 2020-05-07 | 2020-09-18 | 惠州亿纬创能电池有限公司 | Lithium ion battery formation method and lithium ion battery |
| CN112103566A (en) * | 2020-10-20 | 2020-12-18 | 天津市捷威动力工业有限公司 | Method for manufacturing lithium ion battery by using gel diaphragm |
| CN112490523A (en) * | 2020-03-30 | 2021-03-12 | 万向一二三股份公司 | Formation method of soft-packaged rubber diaphragm lithium ion battery and lithium ion battery |
| CN112582697A (en) * | 2020-12-15 | 2021-03-30 | 东莞维科电池有限公司 | Formation method of lithium ion battery |
| CN112701356A (en) * | 2020-12-14 | 2021-04-23 | 河南环宇惠能能源有限公司 | Formation method of flexible package lithium ion battery |
| CN113451673A (en) * | 2021-06-29 | 2021-09-28 | 惠州市赛能电池有限公司 | Formation method of lithium battery, lithium battery and preparation method thereof |
| CN114597499A (en) * | 2022-02-25 | 2022-06-07 | 惠州锂威新能源科技有限公司 | Formation method and preparation method of lithium ion battery and lithium ion battery |
| CN114695989A (en) * | 2020-12-29 | 2022-07-01 | 双登集团股份有限公司 | Lithium ion battery performance improving method |
| CN118712544A (en) * | 2024-08-29 | 2024-09-27 | 兴储世纪科技股份有限公司 | Optimization process formulation method for sodium ion battery |
| CN118712544B (en) * | 2024-08-29 | 2024-11-05 | 兴储世纪科技股份有限公司 | Optimization process formulation method for sodium ion battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659399A (en) * | 2013-11-20 | 2015-05-27 | 万向A一二三系统有限公司 | Infiltration method of high compaction density anode power battery |
| CN105406130A (en) * | 2015-11-30 | 2016-03-16 | 山东精工电子科技有限公司 | Soft package lithium-ion battery formation method |
| CN106684457A (en) * | 2017-01-18 | 2017-05-17 | 合肥国轩高科动力能源有限公司 | Formation method of high-voltage lithium ion soft package battery |
| CN107579282A (en) * | 2017-09-14 | 2018-01-12 | 合肥国轩高科动力能源有限公司 | Formation process of soft-packaged silicon-carbon negative-electrode lithium battery |
-
2018
- 2018-03-28 CN CN201810267322.0A patent/CN108511826A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659399A (en) * | 2013-11-20 | 2015-05-27 | 万向A一二三系统有限公司 | Infiltration method of high compaction density anode power battery |
| CN105406130A (en) * | 2015-11-30 | 2016-03-16 | 山东精工电子科技有限公司 | Soft package lithium-ion battery formation method |
| CN106684457A (en) * | 2017-01-18 | 2017-05-17 | 合肥国轩高科动力能源有限公司 | Formation method of high-voltage lithium ion soft package battery |
| CN107579282A (en) * | 2017-09-14 | 2018-01-12 | 合肥国轩高科动力能源有限公司 | Formation process of soft-packaged silicon-carbon negative-electrode lithium battery |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111600062A (en) * | 2019-03-22 | 2020-08-28 | 骆驼集团新能源电池有限公司 | Formation method for improving cycle life of silicon-carbon soft package lithium ion battery |
| CN112490523A (en) * | 2020-03-30 | 2021-03-12 | 万向一二三股份公司 | Formation method of soft-packaged rubber diaphragm lithium ion battery and lithium ion battery |
| CN111682272A (en) * | 2020-05-07 | 2020-09-18 | 惠州亿纬创能电池有限公司 | Lithium ion battery formation method and lithium ion battery |
| CN111613839A (en) * | 2020-06-05 | 2020-09-01 | 惠州市太能锂电有限公司 | Novel ultrathin battery and preparation process thereof |
| CN112103566A (en) * | 2020-10-20 | 2020-12-18 | 天津市捷威动力工业有限公司 | Method for manufacturing lithium ion battery by using gel diaphragm |
| CN112701356A (en) * | 2020-12-14 | 2021-04-23 | 河南环宇惠能能源有限公司 | Formation method of flexible package lithium ion battery |
| CN112582697A (en) * | 2020-12-15 | 2021-03-30 | 东莞维科电池有限公司 | Formation method of lithium ion battery |
| CN114695989A (en) * | 2020-12-29 | 2022-07-01 | 双登集团股份有限公司 | Lithium ion battery performance improving method |
| CN114695989B (en) * | 2020-12-29 | 2023-12-15 | 双登集团股份有限公司 | Method for improving performance of lithium ion battery |
| CN113451673A (en) * | 2021-06-29 | 2021-09-28 | 惠州市赛能电池有限公司 | Formation method of lithium battery, lithium battery and preparation method thereof |
| CN114597499A (en) * | 2022-02-25 | 2022-06-07 | 惠州锂威新能源科技有限公司 | Formation method and preparation method of lithium ion battery and lithium ion battery |
| CN118712544A (en) * | 2024-08-29 | 2024-09-27 | 兴储世纪科技股份有限公司 | Optimization process formulation method for sodium ion battery |
| CN118712544B (en) * | 2024-08-29 | 2024-11-05 | 兴储世纪科技股份有限公司 | Optimization process formulation method for sodium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108511826A (en) | A kind of chemical synthesizing method of silicon-carbon soft bag lithium ionic cell | |
| CN102760908B (en) | Quick formation method for lithium ion battery adapting to various cathode material systems | |
| CN110416626B (en) | Formation method of lithium ion battery | |
| CN111883866B (en) | Lithium ion battery formation process and lithium ion battery obtained by same | |
| CN107275676A (en) | A kind of electrolyte and silicon substrate lithium secondary battery for silicon substrate lithium secondary battery | |
| CN109888290B (en) | High-rate lithium ion battery, aging and formation method | |
| CN106684457A (en) | Formation method of high-voltage lithium ion soft package battery | |
| CN108615955B (en) | Formation method of lithium iron phosphate battery | |
| CN108539305B (en) | Soft package high-nickel lithium ion battery formation process | |
| CN103996877A (en) | Method for processing lithium ion battery cell by diaphragm coating | |
| CN109560337A (en) | A kind of chemical synthesizing method of lithium ion battery | |
| CN104269584A (en) | Method for forming polymer lithium battery | |
| CN105811032A (en) | Formation method of aluminum-shell lithium ion battery | |
| CN109841915B (en) | Formation method of lithium ion battery with high storage performance | |
| CN106784855A (en) | A kind of unmanned plane manufacture method of high temperature modification lithium ion battery | |
| WO2022134414A1 (en) | Modified silicon-carbon negative electrode material, preparation method therefor, and application thereof | |
| CN107579301B (en) | Formation process of lithium iron phosphate power battery | |
| CN112366348B (en) | Sectional formation method for high-nickel ternary soft-package power lithium battery | |
| CN110518301B (en) | Soft package lithium ion battery formation method | |
| CN112234270A (en) | Formation method of lithium iron phosphate battery | |
| CN109830748B (en) | Lithium ion battery electrolyte | |
| CN109244541B (en) | Electrolyte, lithium ion battery using electrolyte, and preparation method and application of lithium ion battery | |
| CN109616655B (en) | Double-layer coated lithium iron borate/nickel pyrophosphate lithium battery positive electrode material and preparation method thereof | |
| CN105576291B (en) | A kind of high-voltage lithium ion battery electrolyte and lithium ion battery | |
| CN110707286A (en) | High-energy-density lithium ion battery integrated electrode and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180907 |