CN106532107A - Lithium-ion button-type total battery used in experiments and manufacturing method thereof - Google Patents
Lithium-ion button-type total battery used in experiments and manufacturing method thereof Download PDFInfo
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- CN106532107A CN106532107A CN201611195003.0A CN201611195003A CN106532107A CN 106532107 A CN106532107 A CN 106532107A CN 201611195003 A CN201611195003 A CN 201611195003A CN 106532107 A CN106532107 A CN 106532107A
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- pole piece
- lithium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—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
Abstract
The invention relates to the technical field of lithium ion batteries, in particular to a lithium-ion button-type total battery used in experiments and a manufacturing method of the lithium-ion button-type total battery. The manufacturing method is characterized by comprising the following steps: manufacturing a positive plate and a negative plate; assembling the battery: assembling a positive shell, a negative plate, a diaphragm, an electrolyte, a positive plate and a negative shell sequentially under the conditions that the temperature environment is 0 to 40 DEG C and the humidity is that the dew point is smaller than or equal to -40 DEG C, and adding a supporting body while the battery is assembled to maintain that the positive plate and the negative plate are in tight contact; sealing; and standing to obtain a finished product. Compared with the prior art, the prepared lithium-ion button-type total battery is good in consistency, and the battery test result is high in accuracy; the battery is quick and convenient to assemble by using the manufacturing method, and the preparation method is simple and practicable, is applicable to laboratory evaluation, and is extremely applicable to electrochemical methods for evaluating material performances.
Description
Technical field
The present invention relates to technical field of lithium ion, the full battery of lithium ion button of specifically a kind of test and
Its manufacture method.
Background technology
Lithium ion battery so far, is widely used in every field from commercialization in 1991.Through more than 20 years send out
Exhibition, the performance of lithium ion battery each side have and are obviously improved and improve, including energy density, cycle life and safety
Can wait, this needs to give the credit to the theoretical research that academia and industrial circle have carried out extensively and profoundly to lithium-ion battery system, for example
The exploitation of novel positive and negative pole material, the preparation optimization of various functions additive, the development of new lithium salts and electrolyte/electrode
The research at interface etc..
Electrochemical method is the important means of lithium ion battery material research and performance evaluation research, for example, constant current charge and discharge
Electricity, constant potential Intermittent Titration, constant current Intermittent Titration, cyclic voltammetric and AC impedance etc..Conventional button cell uses metal
Lithium piece is as to electrode, relatively easy, and influence factor is little, for being analyzed and evaluated more direct convenience to homogenous material.
But for the collocation between different both positive and negative polarities, the factor such as influence each other cannot be evaluated, and make cylinder electricity
The lithium ion battery fabrication cycle such as pond, square battery, polymer battery is long, and influence factor is more, and testing cost is high.Therefore, introduce
The full battery of lithium ion button carries out lab material evaluation becomes the method for solving above-mentioned contradiction.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, can effectively carry out phase between the material of lithium ion battery
The test evaluation for mutually affecting, and simply, it is convenient, fast.
Above-mentioned purpose is realized, a kind of manufacture method of the full battery of lithium ion button of test is designed, it is characterised in that bag
Include following step：
1) positive and negative plate makes：Positive electrode and negative material require to be fabricated to positive and negative plate respectively according to surface density；
2) assembled battery：It it is 0～40 DEG C in temperature environment, humidity is under conditions of dew point is less than or equal to -40 DEG C, by positive pole
Shell, negative plate, barrier film add electrolyte, positive plate, negative electrode casing to assemble successively in order, add supporter to protect when battery is assembled
Hold positive/negative plate contact tight；
3) seal：Sealed in being put into sealing machine, obtained final product the full battery sample of lithium ion button；
4) stand to obtain finished product：The lithium ion button of sealing full battery sample is stood into certain hour, then must be tested
The full finished battery of lithium ion button is used for being tested；
Described barrier film adds electrolyte, is that electrolyte is added on barrier film, or electrolyte is added on both positive and negative polarity pole piece, or
Electrolyte is added on barrier film and both positive and negative polarity pole piece by person simultaneously.
The step 1) in negative material be graphite, soft carbon, hard carbon, amorphous carbon, lithium titanate, silicon-carbon alloy, stannum carbon close
One or more dusty material in gold；The step 1) in positive electrode be cobalt acid lithium, LiMn2O4, lithium nickelate, LiFePO4,
One or more dusty material in lithium manganese phosphate, nickle cobalt lithium manganate, lithium nickel cobalt dioxide, nickel cobalt lithium aluminate.
The step 1) in cathode pole piece capacity be 1～2 times of anode pole piece capacity.
The step 1) in cathode pole piece capacity be 1～1.5 times of anode pole piece capacity.
The step 1) in cathode pole piece capacity be 1～1.2 times of anode pole piece capacity.
Described supporter is shell fragment, and described shell fragment is placed between anode pole piece and anode cover, or shell fragment be placed on it is negative
Between pole pole piece and negative electrode casing.
The step 2) in cathode pole piece size more than or equal to the just positive size of piece, and when assembling anode pole piece with
Cathode pole piece aligns, it is ensured that anode pole piece is all corresponding with cathode pole piece；
The step 2) septation size more than cathode pole piece size and the size less than anode cover, it is ensured that barrier film is complete
It is complete to intercept positive and negative electrode pole piece.
The step 4) in time of repose be -10 days 0.2 hour.
The step 4) in time of repose be -48 hours 2 hours.
The full battery of lithium ion button obtained in a kind of preparation method.
Compared with prior art, the full battery consistency of lithium ion button of preparation is good, and cell testing results are accurate for the present invention
Property it is high；Quick using battery of the present invention assembling, convenient, preparation method is simple, it is adaptable to laboratory evaluation, is very suitable for
Electrochemical method is evaluated to material property.
Description of the drawings
Fig. 1 is the EIS figures of the full battery of lithium ion button that the embodiment of the present invention 3 makes；
Fig. 2 is the constant current Intermittent Titration figure of the full battery of lithium ion button that the embodiment of the present invention 4 makes.
Specific embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described in conjunction with drawings and Examples, it is clear that
Described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the enforcement in the present invention
Example, the every other embodiment obtained under the premise of creative work is not made by those of ordinary skill in the art are belonged to
The scope of protection of the invention.
Used tool of the present invention, reagent, equipment are commercially available.
Embodiment 1
Assemble a cobalt acid lithium-full battery of native graphite button：
1) positive and negative plate makes：Cobalt acid lithium is added into binding agent, conductive agent processing procedure slurry, and by the slurry even spread
On aluminium foil, the positive pole sequin of diameter 16mm is cut into after roll-in；Native graphite is added into binding agent, conductive agent processing procedure slurry
Material, and the slurry is uniformly coated on Copper Foil, the negative pole sequin of diameter 19mm is cut into after roll-in；Calculated with surface density
Positive pole capacity of negative plates ratio be 1.05；
2) assembled battery：In 30 degree of temperature, in the case that dew point -40 is spent, shell fragment is put in negative electrode casing, is put above negative
Pole pole piece, puts the barrier film of diameter 22mm above cathode pole piece, the 3 drop electrolyte in drop on barrier film, diaphragms put positive pole
Pole piece, finally puts anode cover；Battery can also add supporter to keep positive/negative plate contact tight when assembling, this addition supports
The method that body carries out battery assembling, the manufacture method that can be found in a kind of 2015107805330 lithium ion button of patent electricity；
3) seal：Sealed in being put into sealing machine after being completed, obtained the button cell sample of CR2430；According to above-mentioned
Step repeats to assemble 3 button cells, is button cell 1, button cell 2, button cell 3 respectively；
4) 24h is stood to the button cell made, then carries out constant current charge-discharge test, electric current density 0.5mA/cm2,
Test result is shown in Table 1, the discharge capacity average out to of cobalt acid lithium：140.5mAh/g, first efficiency average out to：95.5%, cell number
According to accuracy and concordance it is all preferable.
Embodiment 2
Assemble a LiMn2O4-full battery of Delanium button：
1) positive and negative plate makes：LiMn2O4 is added into binding agent, conductive agent processing procedure slurry, and by the slurry even spread
On aluminium foil, the positive pole sequin of diameter 16mm is cut into after roll-in；Delanium is added into binding agent, conductive agent processing procedure slurry
Material, and the slurry is uniformly coated on Copper Foil, the negative pole sequin of diameter 19mm is cut into after roll-in；Calculated with surface density
Positive pole capacity of negative plates ratio be 1.1；
2) assembled battery：In 20 degree of temperature, in the case that dew point -40 is spent, shell fragment is put in anode cover, is just put above
Pole pole piece, drips upper 3 drop electrolyte, puts the barrier film of diameter 22mm above anode pole piece, the 3 drop electrolyte in drop on barrier film, every
Cathode pole piece is put above film, finally puts negative electrode casing；Certainly supporter can be added when battery is assembled to keep positive/negative plate to connect
Touch tight；
3) seal：Sealed after being completed, sealed in being put into sealing machine, obtained the button cell sample of CR2430
Product, repeat to assemble 3 button cells according to above-mentioned steps, are button cell 4, button cell 5, button cell 6 respectively；
4) stand to obtain finished product：Button cell to making stands 2h, then carries out constant current charge-discharge test, electric current density
0.5mA/cm2, test result are shown in Table 1, the discharge capacity average out to of LiMn2O4：121.2mAh/g, first efficiency average out to：
92.3%, the accuracy of battery data and concordance it is all preferable.
Table 1：The discharge and recharge tables of data of the button cell prepared in embodiment 1 and embodiment 2
Embodiment 3
Assemble a nickle cobalt lithium manganate-full battery of silicon-carbon alloy button：
1) positive and negative plate makes：Binding agent, conductive agent is added to make slurry nickle cobalt lithium manganate, and will be the slurry uniform
It is coated on aluminium foil, is cut into the positive pole sequin of diameter 16mm after roll-in；Silicon-carbon alloy material is added into binding agent, conduction
Slurry is made in agent, and the slurry is uniformly coated on Copper Foil, is cut into the negative pole sequin of diameter 19mm after roll-in；Use face
The positive pole capacity of negative plates ratio that density is calculated is 1.15；
2) assembled battery：In 25 degree of temperature, in the case that dew point -40 is spent, shell fragment is put in negative electrode casing, is put above negative
Pole pole piece, puts the barrier film of diameter 22mm above cathode pole piece, the 3 drop electrolyte in drop on barrier film, diaphragms put positive pole
Pole piece, finally puts anode cover；Certainly supporter can be added when battery is assembled to keep positive/negative plate contact tight；
3) seal：Sealed in being put into sealing machine after being completed, obtained the button cell sample of CR2430；According to above-mentioned
Step repeats to assemble 3 button cells, is embodiment 3-1, embodiment 3-2, embodiment 3-3 respectively.
4) button cell to making stands 5 days, then carries out constant current charge-discharge test, then does EIS tests, sees figure
1。
Embodiment 4
Assemble a LiFePO4-hard carbon button cell：
1) positive and negative plate makes：Add binding agent, conductive agent to make slurry LiFePO4, and the slurry is uniformly applied
Cloth is cut into the positive pole sequin of diameter 16mm on aluminium foil, after roll-in；Binding agent, conductive agent is added to make hard carbon material
Slurry, and the slurry is uniformly coated on Copper Foil, the negative pole sequin of diameter 19mm is cut into after roll-in；Use surface density meter
The positive pole capacity of negative plates ratio of calculation is 1.8；
2) assembled battery：In 25 degree of temperature, in the case that dew point -40 is spent, shell fragment is put in negative electrode casing, is put above negative
Pole pole piece, puts the barrier film of diameter 22mm above cathode pole piece, the 3 drop electrolyte in drop on barrier film, diaphragms put positive pole
Pole piece, finally puts anode cover；Certainly supporter can be added when battery is assembled to keep positive/negative plate contact tight；
3) seal：Sealed in being put into sealing machine, obtained final product the button cell sample of CR2430；
4) stand to obtain finished product：Button cell to making stands 8 days, then carries out constant current charge-discharge test, then does
Constant current Intermittent Titration, is shown in Fig. 2.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes without departing substantially from the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (10)
1. the manufacture method of the full battery of lithium ion button of a kind of test, it is characterised in that comprise the steps：
1) positive and negative plate makes：Positive electrode and negative material require to be fabricated to positive and negative plate respectively according to surface density；
2) assembled battery：Be 0～40 DEG C in temperature environment, humidity is dew point less than or equal under conditions of -40 DEG C, by anode cover,
Negative plate, barrier film add electrolyte, positive plate, negative electrode casing to assemble successively in order, add supporter to keep when battery is assembled
Positive/negative plate contact is tight；
3) seal：Sealed in being put into sealing machine, obtained final product the full battery sample of lithium ion button；
4) stand to obtain finished product：The full battery sample of lithium ion button of sealing is stood into certain hour, the lithium that then must be tested from
The full finished battery of ZIKOU formula is used for being tested；
Described barrier film adds electrolyte, is that electrolyte is added on barrier film, or electrolyte is added on both positive and negative polarity pole piece, or will
Electrolyte is added on barrier film and both positive and negative polarity pole piece simultaneously.
2. manufacture method as claimed in claim 1, it is characterised in that：The step 1) in negative material be graphite, soft carbon, hard
One or more dusty material in carbon, amorphous carbon, lithium titanate, silicon-carbon alloy, stannum carbon alloy；The step 1) in positive pole material
Expect in cobalt acid lithium, LiMn2O4, lithium nickelate, LiFePO4, lithium manganese phosphate, nickle cobalt lithium manganate, lithium nickel cobalt dioxide, nickel cobalt lithium aluminate
One or more dusty material.
3. manufacture method as claimed in claim 1, it is characterised in that：The step 1) in cathode pole piece capacity be anode pole piece
1～2 times of capacity.
4. manufacture method as claimed in claim 1, it is characterised in that：The step 1) in cathode pole piece capacity be anode pole piece
1～1.5 times of capacity.
5. manufacture method as claimed in claim 1, it is characterised in that：The step 1) in cathode pole piece capacity be anode pole piece
1～1.2 times of capacity.
6. manufacture method as claimed in claim 1, it is characterised in that：Described supporter is shell fragment, and described shell fragment is placed on
Between anode pole piece and anode cover, or shell fragment is placed between cathode pole piece and negative electrode casing.
7. manufacture method as claimed in claim 1, it is characterised in that：
The step 2) in cathode pole piece size more than or equal to the just positive size of piece, and anode pole piece and negative pole when assembling
Pole piece aligns, it is ensured that anode pole piece is all corresponding with cathode pole piece；
The step 2) septation size more than cathode pole piece size and the size less than anode cover, it is ensured that barrier film hinders completely
Every positive and negative electrode pole piece.
8. manufacture method as claimed in claim 1, it is characterised in that：The step 4) in time of repose be 0.2 hour -10
My god.
9. manufacture method as claimed in claim 1, it is characterised in that：The step 4) in time of repose be 2 hours -48 little
When.
10. the full battery of lithium ion button obtained in one kind preparation method as described in any one of claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493439A (en) * | 2018-01-23 | 2018-09-04 | 江苏大学 | A kind of production method of button and Soft Roll full battery |
| CN108807845A (en) * | 2018-08-03 | 2018-11-13 | 安徽科达洁能新材料有限公司 | A kind of button full battery and preparation method thereof of metatitanic acid pole piece and graphite pole piece composition |
| CN109254036A (en) * | 2017-07-14 | 2019-01-22 | 上海杉杉科技有限公司 | A kind of electrochemical evaluation method of electrode material rapid charging performance |
| CN109375113A (en) * | 2018-09-26 | 2019-02-22 | 山东精工电子科技有限公司 | The method for testing lithium electric material specific discharge capacity |
| CN109975381A (en) * | 2019-02-28 | 2019-07-05 | 江苏中兴派能电池有限公司 | A kind of method of quick evaluation and test lithium ion battery plus-negative plate material electrochemical performance |
| CN110133513A (en) * | 2018-02-09 | 2019-08-16 | 北京好风光储能技术有限公司 | Slurry battery electrode material electrochemical property test device and detection method |
| CN112068002A (en) * | 2020-09-21 | 2020-12-11 | 昆山宝创新能源科技有限公司 | Method for rapidly evaluating ceramic composite pole piece |
| CN113358428A (en) * | 2021-04-26 | 2021-09-07 | 万向一二三股份公司 | Lithium battery pole piece processing method |
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| US5744264A (en) * | 1996-06-13 | 1998-04-28 | Valence Technology, Inc. | Lithium ion electrochemical cell |
| CN103378368A (en) * | 2012-04-17 | 2013-10-30 | 万向电动汽车有限公司 | Lithium ion battery with silicon negative electrode and manufacturing method |
| CN105070908A (en) * | 2015-08-31 | 2015-11-18 | 宁波金和锂电材料有限公司 | Method for preparing high nickel anode material and lithium ion battery |
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| US5744264A (en) * | 1996-06-13 | 1998-04-28 | Valence Technology, Inc. | Lithium ion electrochemical cell |
| CN103378368A (en) * | 2012-04-17 | 2013-10-30 | 万向电动汽车有限公司 | Lithium ion battery with silicon negative electrode and manufacturing method |
| CN105070908A (en) * | 2015-08-31 | 2015-11-18 | 宁波金和锂电材料有限公司 | Method for preparing high nickel anode material and lithium ion battery |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254036A (en) * | 2017-07-14 | 2019-01-22 | 上海杉杉科技有限公司 | A kind of electrochemical evaluation method of electrode material rapid charging performance |
| CN108493439A (en) * | 2018-01-23 | 2018-09-04 | 江苏大学 | A kind of production method of button and Soft Roll full battery |
| CN110133513A (en) * | 2018-02-09 | 2019-08-16 | 北京好风光储能技术有限公司 | Slurry battery electrode material electrochemical property test device and detection method |
| CN108807845A (en) * | 2018-08-03 | 2018-11-13 | 安徽科达洁能新材料有限公司 | A kind of button full battery and preparation method thereof of metatitanic acid pole piece and graphite pole piece composition |
| CN108807845B (en) * | 2018-08-03 | 2021-05-28 | 安徽科达新材料有限公司 | Button type full cell composed of lithium titanate pole piece and graphite pole piece and preparation method thereof |
| CN109375113A (en) * | 2018-09-26 | 2019-02-22 | 山东精工电子科技有限公司 | The method for testing lithium electric material specific discharge capacity |
| CN109975381A (en) * | 2019-02-28 | 2019-07-05 | 江苏中兴派能电池有限公司 | A kind of method of quick evaluation and test lithium ion battery plus-negative plate material electrochemical performance |
| CN112068002A (en) * | 2020-09-21 | 2020-12-11 | 昆山宝创新能源科技有限公司 | Method for rapidly evaluating ceramic composite pole piece |
| CN113358428A (en) * | 2021-04-26 | 2021-09-07 | 万向一二三股份公司 | Lithium battery pole piece processing method |
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