CN106207293A - The chemical synthesizing method of lithium ion battery - Google Patents
The chemical synthesizing method of lithium ion battery Download PDFInfo
- Publication number
- CN106207293A CN106207293A CN201610592523.9A CN201610592523A CN106207293A CN 106207293 A CN106207293 A CN 106207293A CN 201610592523 A CN201610592523 A CN 201610592523A CN 106207293 A CN106207293 A CN 106207293A
- Authority
- CN
- China
- Prior art keywords
- battery core
- temperature
- pressure
- battery
- lithium ion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The chemical synthesizing method of lithium ion battery, comprises the following steps: the battery core that ageing terminates being put into and carry out high-temperature pressurizing chemical conversion in formation device, charge cutoff voltage is 3.5～3.8V；Under room temperature and fixation pressure, battery core is cooled down, make battery core temperature be down to room temperature；Battery core after cooling is placed in vacuum environment, the gasbag of battery core is punctured and bleeds, then sealing；Complete battery core of bleeding being put into and carry out high-temperature pressurizing chemical conversion in formation device, charge cutoff voltage is 3.9～4.5V；Temperature and pressure are improved, battery is carried out heat-insulation pressure keeping；Cooling down battery core under room temperature and fixation pressure, make battery core temperature be down to room temperature, chemical conversion terminates.Present invention increase in hot pressing is melted into punctures the step that air bag is bled, and can get rid of reacting gas in time, improve lithium battery performance.
Description
Technical field
The invention belongs to technical field of lithium-ion battery, particularly relate to the chemical synthesizing method of lithium ion battery.
Background technology
Chemical conversion is requisite one procedure in Production Process of Lithium Battery, and the quality of lithium battery performance is played to pass by it
Important effect.Especially for soft package lithium battery, chemical conversion not only have active electrode material, improve lithium battery interface, self discharge,
The functions such as the effects such as circulation, also have enhancing battery core hardness, shaping.In order to save the production time, raise labour efficiency, reduce into
This, soft package lithium battery begins with High Temperature High Pressure big electric current chemical synthesis technology, carries out chemical conversion at high temperature under high pressure and is not only able to improve
Lithium battery performance, it is also possible to the effective battery core hardness that improves, increase battery core flatness.But along with the improvement of membrane process, gluing
The popularization of barrier film, traditional hot pressing chemical synthesis technology existence is felt like jelly, is analysed the problems such as glue, along with going deep into of research, new High Temperature High Pressure
The chemical synthesis technology of big electric current is updated optimization.
Disclosed in the Chinese invention patent application of Publication No. CN105406129A, one is entered under high temperature and condition of high voltage
The technique of row large current charge chemical conversion, this patent, on the basis of the big electric current of High Temperature High Pressure is melted into, adds high temperature ageing technique,
Efficiently solve glue and the problem of feeling like jelly analysed in battery core formation process.But in the big electric current of High Temperature High Pressure is melted into, the gas of generation
How to get rid of, be not described.Owing to, under High Temperature High Pressure, lithium battery interior electrochemical reaction strengthens, and more side reaction generation can be produced
Raw more gaseous impurity, if can not get rid of in time, gas is retained in inside battery core, can have a negative impact lithium battery performance,
Such as increase battery core internal resistance, increase lithium battery interior lithium ion conduction resistance, destruction battery core electrode interface state, reduction lithium battery
Cycle performance and storage time etc..
Summary of the invention
It is an object of the invention to provide a kind of gas by producing in eliminating formation process in time thus improve battery
The chemical synthesizing method of the lithium ion battery of performance.
To achieve these goals, the present invention takes following technical solution:
The chemical synthesizing method of lithium ion battery, comprises the following steps:
Step A, the battery core that ageing terminates being put into and carry out high-temperature pressurizing chemical conversion in formation device, charge cutoff voltage is
3.5～3.8V；
Step B, under room temperature and fixation pressure, battery core is cooled down, make battery core temperature be down to room temperature；
Step C, will cooling after battery core be placed in vacuum environment, the gasbag of battery core punctured and bleed, then sealing
Mouthful；
Step D, complete battery core of bleeding being put into and carry out high-temperature pressurizing chemical conversion in formation device, charge cutoff voltage is
3.9～4.5V；
Step E, temperature and pressure are improved, battery is carried out heat-insulation pressure keeping；
Step F, cooling down battery core under room temperature and fixation pressure, make battery core temperature be down to room temperature, chemical conversion terminates.
Further, described step A is charged with the electric current of 0.05～0.5CmA during chemical conversion.
Further, the chemical conversion temperature in described step A and step D is 30～100 DEG C, and pressure is 0.01～10MPa.
Further, pressure when cooling down in described step B and step F is 0.01～10MPa.
Further, temperature when cooling down in described step B is 5～30 DEG C.
Further, the vacuum-95～-30KPa of vacuum environment in described step C.
Further, described step D is charged with the electric current of 0.2～3CmA during chemical conversion.
Further, in described step E, the time of heat-insulation pressure keeping is 5min～200min.
Further, the temperature 40 in described step E～120 DEG C, pressure 0.1～12MPa.
From above technical scheme, present invention increase in hot pressing is melted into punctures the step that air bag is bled, at aerogenesis relatively
After many first time chargings terminate, battery core is carried out clip and bleeds, reacting gas can be got rid of in time, improve the effect of secondary sealing
Rate, reduces battery core internal gas, thus effectively reduces battery core internal resistance, improves battery core hardness；Compared with conventional chemical synthesizing method, twice
High normal pressure and temperature cooling step, can improve lithium battery hardness, improves battery core flatness, improves lithium battery performance, be particularly suited for
Great Bao battery core and the poor battery core of barrier film cementability.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention, will use required in embodiment or description of the prior art below
Accompanying drawing do simple introduction, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, for ability
From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
Fig. 1 is the flow chart of the inventive method.
Detailed description of the invention
In order to above and other objects of the present invention, feature and advantage can be become apparent from, the embodiment of the present invention cited below particularly,
And coordinate appended diagram, it is described below in detail.
As it is shown in figure 1, the step of chemical synthesizing method of the present invention is as follows:
Step A, the battery core that ageing terminates is put into and is carried out high-temperature pressurizing chemical conversion in formation device, during chemical conversion with 0.05～
The electric current of 0.5CmA is charged, and charge cutoff voltage is 3.5～3.8V, chemical conversion temperature be 30～100 DEG C, pressure be 0.01～
10MPa；
Step B, under room temperature and certain pressure, battery core is cooled down, make battery core temperature be down to room temperature, pressure during cooling
Power is 0.01～10MPa, and temperature is 5～30 DEG C, and cool time is 30s～100min；
Step C, will cooling after battery core be placed in vacuum environment, the gasbag of battery core is punctured and bleeds, to get rid of electricity
Core inner gas, then seals；The vacuum-95～-30KPa of vacuum environment, uses the mode of pressurization and air extracting, punctures air bag
Bleeding or bleed air bag shear angle, the pressure of air-extractor is 0.1～3MPa；
Step D, it is placed again in formation device being charged with the electric current of 0.2～3CmA by complete battery core of bleeding, fills
Electricity blanking voltage is 3.9～4.5V, and chemical conversion temperature is 30～100 DEG C, and pressure is 0.01～10MPa；
Step E, temperature and pressure being improved, battery is carried out heat-insulation pressure keeping, the retention time is 5min～200min, temperature
40～120 DEG C, pressure 0.1～12MPa；
Step F, cooling down battery core under room temperature and certain pressure, make battery core temperature be down to room temperature, chemical conversion terminates, cold
But pressure time is 0.01～10MPa, and temperature is 5～30 DEG C.
With a specific embodiment, the chemical synthesizing method of the lithium ion battery of the present invention is described in detail below:
Prepare the positive and negative electrode of battery core according to conventional preparation technology, positive and negative electrode and membrane coil are coiled into battery core, then by pole
Ear puts into battery container after welding with pole piece, after sealing, injects the electrolyte in battery container, then carries out old by battery
Change；
The battery core that ageing terminates is put into temperature be 70 DEG C, pressure be 0.46Mpa formation device in carry out high-temperature pressurizing
Chemical conversion, is charged with the electric current of 0.2CmA, charges to blanking voltage 3.7V；
Under the pressure of 0.38Mpa, battery core is carried out room temperature cooling, until battery core temperature reduces to room temperature；
Battery core after cooling is punctured and bled, and vacuum-90KPa, pressurization clip bleeds, pressure 0.6MPa, sealing；
Battery core is reentered in formation device, temperature, pressure constant (70 DEG C, 0.46Mpa), enters with the electric current of 0.5CmA
Row charging, charges to blanking voltage 4.0V；
Improving temperature and the pressure of formation device, temperature is set to 80 DEG C, pressure is 0.51Mpa, carries out heat-insulation pressure keeping
30min；
Under the pressure of 0.38Mpa, battery core is carried out room temperature cooling, until battery core temperature reduces to room temperature；Chemical conversion terminates.
Take above-mentioned same chemical synthesis technology, but in formation process, do not carry out puncturing pump step, prepare comparative example, will
The battery being aged put into temperature be 70 DEG C, pressure be 0.46Mpa formation device in carry out high-temperature pressurizing chemical conversion, during charging first
Use 0.2CmA electric current to be charged, charge to blanking voltage 3.7V, after arriving blanking voltage, continue to carry out with 0.5CmA electric current
Charging, charges to blanking voltage 4.0V, improves temperature and pressure, and temperature is 80 DEG C, and pressure is 0.51Mpa, carries out insulation and protects
Pressure 30min, then under the pressure of 0.38Mpa, battery core is carried out room temperature cooling, until battery core temperature reduces to room temperature, chemical conversion terminates.
Bleeding owing to need not puncture air bag, the preparation technology of comparative example does not have cooling step between twice charging process.
The battery core that battery core embodiment prepared and comparative example prepare carries out hardness, flatness and internal resistance and surveys
Examination, by battery core surface is applied power during hardness test, observes whether battery core can feel like jelly deformation；Testing flatness is that battery core is solid
After reserving, the battery core thickness of several positions in test battery core, check the change of the thickness of each position, thus differentiate that battery core is put down
Whole degree；Inner walkway uses voltage internal resistance test device to test, and above test all uses the means of testing of routine.Test result
As shown in table 1:
Table 1
| Group | Hardness | Flatness | Internal resistance | Capability retention (1000 times) |
| Embodiment | Harder | The most smooth | 10.1mΩ | 92.31% |
| Comparative example | Harder | The most smooth | 11.6mΩ | 87.33% |
By the result of table 1 it can be seen that relative to existing High Temperature High Pressure big electric current chemical synthesis technology, right in formation process
Battery core carries out puncturing bleeding, and can preferably remove internal gas so that every electrical property of battery core all has lifting.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to embodiment illustrated herein, and is to fit to consistent with principles disclosed herein and features of novelty
Widest range.
Claims (9)
1. the chemical synthesizing method of lithium ion battery, it is characterised in that comprise the following steps:
Step A, the battery core that ageing terminates is put into and is carried out high-temperature pressurizing chemical conversion in formation device, charge cutoff voltage be 3.5～
3.8V；
Step B, under room temperature and fixation pressure, battery core is cooled down, make battery core temperature be down to room temperature；
Step C, will cooling after battery core be placed in vacuum environment, the gasbag of battery core punctured and bleed, then sealing；
Step D, complete battery core of bleeding is put into formation device carries out high-temperature pressurizing chemical conversion, charge cutoff voltage be 3.9～
4.5V；
Step E, temperature and pressure are improved, battery is carried out heat-insulation pressure keeping；
Step F, cooling down battery core under room temperature and fixation pressure, make battery core temperature be down to room temperature, chemical conversion terminates.
The chemical synthesizing method of lithium ion battery the most according to claim 1, it is characterised in that: in described step A chemical conversion time with
The electric current of 0.05～0.5CmA is charged.
The chemical synthesizing method of lithium ion battery the most according to claim 1, it is characterised in that: in described step A and step D
Chemical conversion temperature is 30～100 DEG C, and pressure is 0.01～10MPa.
The chemical synthesizing method of lithium ion battery the most according to claim 1, it is characterised in that: cold in described step B and step F
But pressure time is 0.01～10MPa.
5. according to the chemical synthesizing method of the lithium ion battery described in claim 1 or 4, it is characterised in that: in described step B during cooling
Temperature be 5～30 DEG C.
The chemical synthesizing method of lithium ion battery the most according to claim 1, it is characterised in that: vacuum environment in described step C
Vacuum-95～-30KPa.
The chemical synthesizing method of lithium ion battery the most according to claim 1, it is characterised in that: in described step D chemical conversion time with
The electric current of 0.2～3CmA is charged.
The chemical synthesizing method of lithium ion battery the most according to claim 1, it is characterised in that: heat-insulation pressure keeping in described step E
Time be 5min～200min.
9. according to the chemical synthesizing method of the lithium ion battery described in claim 1 or 8, it is characterised in that: the temperature in described step E
40～120 DEG C, pressure 0.1～12MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610592523.9A CN106207293A (en) | 2016-07-25 | 2016-07-25 | The chemical synthesizing method of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610592523.9A CN106207293A (en) | 2016-07-25 | 2016-07-25 | The chemical synthesizing method of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106207293A true CN106207293A (en) | 2016-12-07 |
Family
ID=57495104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610592523.9A Pending CN106207293A (en) | 2016-07-25 | 2016-07-25 | The chemical synthesizing method of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106207293A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532131A (en) * | 2016-12-15 | 2017-03-22 | 惠州Tcl金能电池有限公司 | Pressure formation method for lithium ion battery |
| CN106876792A (en) * | 2017-03-10 | 2017-06-20 | 多氟多（焦作）新能源科技有限公司 | A kind of soft bag lithium ionic cell electrolyte wetting method, the chemical synthesizing method of soft bag lithium ionic cell |
| CN108110350A (en) * | 2017-12-18 | 2018-06-01 | 惠州Tcl金能电池有限公司 | Lithium ion battery pressure chemical synthesizing method |
| CN108574115A (en) * | 2017-03-07 | 2018-09-25 | 深圳格林德能源有限公司 | A kind of nickle cobalt lithium manganate lithium ion battery chemical synthesis technology |
| CN109216809A (en) * | 2017-07-08 | 2019-01-15 | 深圳格林德能源有限公司 | A kind of polymer Li-ion battery pressure chemical synthesis technology |
| CN109407721A (en) * | 2017-08-16 | 2019-03-01 | 福建冠城瑞闽新能源科技有限公司 | Cooling system at a slow speed and method for lithium ion battery chemical conversion |
| CN109768315A (en) * | 2018-12-25 | 2019-05-17 | 惠州锂威新能源科技有限公司 | A kind of method and method of optimization battery core chemical conversion pressure |
| CN109962296A (en) * | 2017-12-14 | 2019-07-02 | 宝山钢铁股份有限公司 | A kind of gas medium temperature-control pressure-control lithium battery formation device |
| CN109962306A (en) * | 2017-12-14 | 2019-07-02 | 宝山钢铁股份有限公司 | A kind of liquid medium temperature-control pressure-control lithium battery formation device |
| CN113193236A (en) * | 2021-05-06 | 2021-07-30 | 合肥国轩高科动力能源有限公司 | Infiltration formation method of lithium ion battery |
| CN114050335A (en) * | 2021-10-18 | 2022-02-15 | 湖南海博瑞德电智控制技术有限公司 | Charging and discharging method for lithium ion power battery system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110033640A (en) * | 2009-09-25 | 2011-03-31 | 삼성에스디아이 주식회사 | Method for manufacturing lithium ion secondary battery |
| CN102832410A (en) * | 2012-08-28 | 2012-12-19 | 江苏力天新能源科技有限公司 | Formation method for lithium ion battery |
| CN103515653A (en) * | 2012-06-28 | 2014-01-15 | 深圳市海盈科技有限公司 | Formation method of soft-packed lithium ion battery |
| CN103996876A (en) * | 2014-06-04 | 2014-08-20 | 湖北蜂鸟科技股份有限公司 | Lithium ion battery formation method and preparation method |
| CN104269584A (en) * | 2014-10-16 | 2015-01-07 | 保定风帆新能源有限公司 | Method for forming polymer lithium battery |
| CN105406129A (en) * | 2015-11-06 | 2016-03-16 | 珠海光宇电池有限公司 | Formation method of lithium ion battery |
-
2016
- 2016-07-25 CN CN201610592523.9A patent/CN106207293A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110033640A (en) * | 2009-09-25 | 2011-03-31 | 삼성에스디아이 주식회사 | Method for manufacturing lithium ion secondary battery |
| CN103515653A (en) * | 2012-06-28 | 2014-01-15 | 深圳市海盈科技有限公司 | Formation method of soft-packed lithium ion battery |
| CN102832410A (en) * | 2012-08-28 | 2012-12-19 | 江苏力天新能源科技有限公司 | Formation method for lithium ion battery |
| CN103996876A (en) * | 2014-06-04 | 2014-08-20 | 湖北蜂鸟科技股份有限公司 | Lithium ion battery formation method and preparation method |
| CN104269584A (en) * | 2014-10-16 | 2015-01-07 | 保定风帆新能源有限公司 | Method for forming polymer lithium battery |
| CN105406129A (en) * | 2015-11-06 | 2016-03-16 | 珠海光宇电池有限公司 | Formation method of lithium ion battery |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106532131A (en) * | 2016-12-15 | 2017-03-22 | 惠州Tcl金能电池有限公司 | Pressure formation method for lithium ion battery |
| CN108574115A (en) * | 2017-03-07 | 2018-09-25 | 深圳格林德能源有限公司 | A kind of nickle cobalt lithium manganate lithium ion battery chemical synthesis technology |
| CN106876792B (en) * | 2017-03-10 | 2019-10-18 | 多氟多新能源科技有限公司 | A kind of chemical synthesizing method of soft bag lithium ionic cell electrolyte wetting method, soft bag lithium ionic cell |
| CN106876792A (en) * | 2017-03-10 | 2017-06-20 | 多氟多（焦作）新能源科技有限公司 | A kind of soft bag lithium ionic cell electrolyte wetting method, the chemical synthesizing method of soft bag lithium ionic cell |
| CN109216809A (en) * | 2017-07-08 | 2019-01-15 | 深圳格林德能源有限公司 | A kind of polymer Li-ion battery pressure chemical synthesis technology |
| CN109407721A (en) * | 2017-08-16 | 2019-03-01 | 福建冠城瑞闽新能源科技有限公司 | Cooling system at a slow speed and method for lithium ion battery chemical conversion |
| CN109962296A (en) * | 2017-12-14 | 2019-07-02 | 宝山钢铁股份有限公司 | A kind of gas medium temperature-control pressure-control lithium battery formation device |
| CN109962306A (en) * | 2017-12-14 | 2019-07-02 | 宝山钢铁股份有限公司 | A kind of liquid medium temperature-control pressure-control lithium battery formation device |
| CN108110350A (en) * | 2017-12-18 | 2018-06-01 | 惠州Tcl金能电池有限公司 | Lithium ion battery pressure chemical synthesizing method |
| CN108110350B (en) * | 2017-12-18 | 2021-01-22 | 惠州亿纬创能电池有限公司 | Pressure formation method for lithium ion battery |
| CN109768315A (en) * | 2018-12-25 | 2019-05-17 | 惠州锂威新能源科技有限公司 | A kind of method and method of optimization battery core chemical conversion pressure |
| CN113193236A (en) * | 2021-05-06 | 2021-07-30 | 合肥国轩高科动力能源有限公司 | Infiltration formation method of lithium ion battery |
| CN114050335A (en) * | 2021-10-18 | 2022-02-15 | 湖南海博瑞德电智控制技术有限公司 | Charging and discharging method for lithium ion power battery system |
| CN114050335B (en) * | 2021-10-18 | 2023-12-01 | 湖南海博瑞德电智控制技术有限公司 | Charging and discharging method of lithium ion power battery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106207293A (en) | The chemical synthesizing method of lithium ion battery | |
| CN106450464A (en) | Lithium battery formation method | |
| CN106129505A (en) | A kind of compound method for lithium ion battery | |
| CN105406129B (en) | A kind of chemical synthesizing method of lithium ion battery | |
| CN106785052B (en) | Formation method of lithium titanate battery | |
| CN107768723A (en) | A kind of compound method for lithium ion battery | |
| EP3355329A1 (en) | Lithium ion capacitor and formation method therefor | |
| CN105406130A (en) | Soft package lithium-ion battery formation method | |
| CN104577202B (en) | Formation method and preparation method of high-voltage lithium ion battery as well as battery | |
| CN109638370A (en) | A kind of chemical synthesizing method of soft bag lithium ionic cell | |
| CN105811032A (en) | Formation method of aluminum-shell lithium ion battery | |
| CN106505200B (en) | carbon nanotube/graphene/silicon composite lithium battery cathode material and preparation method thereof | |
| CN109167112A (en) | A kind of high-temperature clamp chemical synthesizing method of lithium titanate battery | |
| CN109103448B (en) | High-capacity cylindrical flexible package lithium ion battery and manufacturing method thereof | |
| CN105390749B (en) | Preparation method of electrochemical cell | |
| WO2018119869A1 (en) | Aluminum laminated packaging film, and lithium-ion battery using same | |
| CN110854458A (en) | Formation method of high-voltage soft package lithium ion battery | |
| CN104409790A (en) | Pre-charge formation method for lithium-ion battery | |
| CN107732314A (en) | A kind of quick formation processing method for improving cycle performance of lithium ion battery | |
| CN108767319A (en) | A kind of compound method for lithium ion battery | |
| CN105845986A (en) | Formation method for improving cycle performance of lithium titanate battery | |
| WO2020220660A1 (en) | Energy and water saving internalization process | |
| CN103840216A (en) | Manufacturing method for lithium ion buckle type battery | |
| CN112599940A (en) | Liquid injection method for solving problem of sinking of square aluminum shell battery shell | |
| CN106299517A (en) | High power capacity square-type lithium battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
|
| RJ01 | Rejection of invention patent application after publication |