CN108188180A - Double lithium foil preparation facilities and preparation method - Google Patents
Double lithium foil preparation facilities and preparation method Download PDFInfo
- Publication number
- CN108188180A CN108188180A CN201810177537.3A CN201810177537A CN108188180A CN 108188180 A CN108188180 A CN 108188180A CN 201810177537 A CN201810177537 A CN 201810177537A CN 108188180 A CN108188180 A CN 108188180A
- Authority
- CN
- China
- Prior art keywords
- rolling roller
- isolation board
- lithium
- isolation
- rolling
- 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.)
- Granted
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 83
- 239000011888 foil Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 82
- 238000002955 isolation Methods 0.000 claims abstract description 79
- 238000004804 winding Methods 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 6
- 229910001416 lithium ion Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 150000002641 lithium Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/40—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling foils which present special problems, e.g. because of thinness
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
-
- 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
Abstract
The present invention provides a kind of double lithium foil preparation facilities and preparation method, including upper Rolling roller and lower Rolling roller, is equipped with isolation board between the upper Rolling roller and lower Rolling roller, during rolling, upper isolation film and upper lithium band is placed between upper Rolling roller and isolation board and is rolled；Lower isolation film and lower lithium band are placed between lower Rolling roller and isolation board and rolled.By adjusting the fast ratio of upper Rolling roller, lower Rolling roller and isolation board, while prepare the lithium foil of two kinds of different-thickness；Roll and lithium band, lithium band and lithium band are separated using isolation film, isolation board, prevented viscous glutinous；Two lithium bands can be once rolled simultaneously, it is efficient；Lithium band is covered on isolation film after rolling, solves the problems, such as that lithium band cannot be shifted because too thin.
Description
Technical field
The present invention relates to lithium ion battery production technical field, more particularly to a kind of double lithium foil preparation facilities and preparation side
Method.
Background technology
Lithium ion battery has many advantages, such as output voltage height, effect without memory, at present extensively by battery of mobile phone, electricity
Electrical automobile industry is applied；Meanwhile raising performance of lithium ion battery also becomes the problem of most being paid close attention in lithium electricity industry, particularly carries
High lithium battery capacity and the service life for extending lithium battery.
Important procedure is chemical conversion there are one in Production Process of Lithium Battery, and the purpose is to make during lithium battery initial charge
Its negative terminal surface forms solid electrolyte film (SEI films).But the formation of SEI films can consume part lithium, cause material therefrom
Thus the loss of lithium, battery capacity also reduce.In addition, during lithium battery recycling, SEI films can continue to consume and repair
Multiple, dead lithium can continue to increase inside positive and negative anodes, and the capacity of battery continues to decline, and result in battery cycle life reduction.
Decline to reduce battery capacity caused by the irreversible consumption of lithium ion in first charge-discharge and recycling
Problem supplements lithium ion battery negative electrode amount of activated lithium, so as to improve performance of lithium ion battery in advance.And it mends in advance
The lithium filled is ultra-thin lithium band, and the method either synchronously or asynchronously rolled is usually used with preparation method for existing lithium, is rolled by control
Pressure, speed of device topping roll and bottom roll processed etc. realize the rolling of different-thickness lithium foil, and this mode can only once be realized
A kind of production of the lithium foil of thickness, and production efficiency is relatively low.
Invention content
The technical problems to be solved by the invention are：In order to overcome deficiency of the prior art, the present invention provides a kind of double
Lithium foil preparation facilities and preparation method.
The present invention solves its technical problem technical solution to be taken：A kind of double lithium foil preparation facilities, including above rolling
Roller processed and lower Rolling roller are equipped with isolation board, the upper Rolling roller and the isolation board between the upper Rolling roller and lower Rolling roller
Between form upper roll path, lower roll path is formed between the lower Rolling roller and the isolation board.
By adjusting rolling thickness of the mill speed than lithium band can be adjusted, therefore, further, the upper Rolling roller and every
From the mill speed between plate than the mill speed between the lower Rolling roller and isolation board than identical or different.When rolling speed
Spend than it is identical when can obtain the lithium band of same thickness up and down, when mill speed than it is different when, the lithium tape thickness obtained up and down is not
Together.
A kind of double lithium foil preparation methods, it is further comprising the steps of including above-mentioned preparation facilities：
During rolling, upper isolation film and upper lithium band are placed in the upper roll path between upper Rolling roller and isolation board, and on
Lithium band is rolled between upper isolation film and isolation board between upper Rolling roller and isolation board, according to different after rolling
The upper Rolling roller of lithium foil thickness adjustment rotates linear velocity and isolation board movement speed into a constant-speed ratio；Meanwhile by lower isolation film under
Lithium band is placed in the lower roll path between lower Rolling roller and isolation board, and lower lithium band is between lower isolation film and isolation board,
It is rolled between lower Rolling roller and isolation board, according to the lower Rolling roller rotation linear velocity of different lithium foil thickness adjustment after rolling
With isolation board movement speed into a constant-speed ratio, with isolation board rub with the hands by upper Rolling roller rolling and roll upper lithium band thin, rolled under
Roller processed and isolation board rub with the hands roll lower lithium band is rolled it is thin；The upper isolation film bonded after rolling is wound with upper lithium band, bonding
Lower isolation film is wound with lower lithium band.
The beneficial effects of the invention are as follows：
1st, roll and lithium band, lithium band and lithium band are separated using isolation film, isolation board, prevented viscous glutinous；
2nd, two lithium bands can be once rolled simultaneously, it is efficient；
3rd, two kinds of different-thickness can simultaneously be prepared by adjusting the fast ratio of upper Rolling roller, lower Rolling roller and isolation board
Lithium foil；
4th, Rolling roller linear velocity and isolation board linear velocity form to rub with the hands and roll mode, it is micro- can lithium band to be rolled into thickness 3 into difference
Ultra-thin lithium foil below rice；
5th, lithium band is covered on isolation film after rolling, and solves the problems, such as that lithium band cannot be shifted because too thin.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of preferred embodiment.
In figure：1st, upper Rolling roller, 2, lower Rolling roller, 3, upper isolation film, 4, upper lithium band, 5, isolation board, 6, lower lithium band, 7, under
Isolation film, 8, the upper isolation film of bonding and upper lithium band, 9, the lower isolation film of bonding and lower lithium band.
Specific embodiment
Presently in connection with attached drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
The basic structure of the present invention, therefore it only shows composition related to the present invention.
As shown in Figure 1, the present invention a kind of double lithium foil preparation facilities, including upper Rolling roller 1 and lower Rolling roller 2, it is described on
Isolation board 5 is equipped between Rolling roller 1 and lower Rolling roller 2, it is logical that rolling is formed between the upper Rolling roller 1 and the isolation board 5
Road forms lower roll path between the lower Rolling roller 2 and the isolation board 5.
By adjusting rolling thickness of the mill speed than lithium band can be adjusted, therefore, further, upper 1 He of Rolling roller
Mill speed between isolation board 5 is than the mill speed between the lower Rolling roller 2 and isolation board 5 than identical or different.When
Mill speed than it is identical when can obtain the lithium band of same thickness up and down, when mill speed than it is different when, the lithium band that obtains up and down
Thickness is different.
A kind of double lithium foil preparation methods, it is further comprising the steps of including above-mentioned preparation facilities：
During rolling, upper isolation film 3 and upper lithium band 4 are placed in the upper roll path between upper Rolling roller 1 and isolation board 5,
And upper lithium band 4 is rolled between upper isolation film 3 and isolation board 5 between upper Rolling roller 1 and isolation board 5, according to rolling
The upper Rolling roller 1 of different lithium foil thickness adjustment rotates linear velocity and 5 movement speed of isolation board into a constant-speed ratio after system；Meanwhile by under
Isolation film 7 and lower lithium band 6 are placed in the lower roll path between lower Rolling roller 2 and isolation board 5, and lower lithium band 6 is located at lower isolation
It between film 7 and isolation board 5, is rolled between lower Rolling roller 2 and isolation board 5, according to different lithium foil thickness tune after rolling
Whole lower Rolling roller 2 rotates linear velocity with 5 movement speed of isolation board into a constant-speed ratio, is rubbed with the hands by upper Rolling roller 1 with isolation board 5
Roll upper lithium band 4 is rolled it is thin, by lower Rolling roller 2 and isolation board 5 rub with the hands roll lower lithium band 6 is rolled it is thin；On being bonded after rolling every
It is wound from film and upper lithium band 8, the lower isolation film of bonding is wound with lower lithium band 9.Can by adjusting upper Rolling roller 1, under
The fast ratio of Rolling roller 2 and isolation board 5, while prepare the lithium foil of two kinds of different-thickness.
Using above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which its technical scope is determined according to right.
Claims (3)
1. a kind of double lithium foil preparation facilities, it is characterised in that：Including upper Rolling roller (1) and lower Rolling roller (2), the upper Rolling roller
(1) isolation board (5) is equipped between lower Rolling roller (2), is formed and rolled between the upper Rolling roller (1) and the isolation board (5)
Channel processed forms lower roll path between the lower Rolling roller (2) and the isolation board (5).
2. double lithium foil preparation facilities as described in claim 1, it is characterised in that：The upper Rolling roller (1) and isolation board (5) it
Between mill speed ratio and the lower Rolling roller (2) and isolation board (5) between mill speed than identical or different.
3. a kind of double lithium foil preparation methods, it is characterised in that：Including the preparation facilities described in claims 1 or 2, further include following
Step：
During rolling, the upper roll path that upper isolation film (3) and upper lithium band (4) is placed between upper Rolling roller (1) and isolation board (5)
It is interior, and upper lithium band (4) is between upper isolation film (3) and isolation board (5), between upper Rolling roller (1) and isolation board (5) into
It goes and rolls, linear velocity and isolation board (5) movement speed are rotated into one according to the upper Rolling roller (1) of different lithium foil thickness adjustment after rolling
Constant-speed ratio；Meanwhile the lower rolling that lower isolation film (7) and lower lithium band (6) are placed between lower Rolling roller (2) and isolation board (5) is led to
In road, and lower lithium band (6) is between lower isolation film (7) and isolation board (5), between lower Rolling roller (2) and isolation board (5)
Rolled, according to lower Rolling roller (2) the rotation linear velocity of different lithium foil thickness adjustment after rolling and isolation board (5) movement speed into
One constant-speed ratio；The upper isolation film bonded after rolling is wound with upper lithium band (8), the lower isolation film of bonding and lower lithium band (9) into
Row winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177537.3A CN108188180B (en) | 2018-03-05 | 2018-03-05 | Double-lithium foil preparation device and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177537.3A CN108188180B (en) | 2018-03-05 | 2018-03-05 | Double-lithium foil preparation device and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108188180A true CN108188180A (en) | 2018-06-22 |
| CN108188180B CN108188180B (en) | 2024-03-01 |
Family
ID=62594950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810177537.3A Active CN108188180B (en) | 2018-03-05 | 2018-03-05 | Double-lithium foil preparation device and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108188180B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111312983A (en) * | 2020-02-25 | 2020-06-19 | 惠州亿纬锂能股份有限公司 | Negative plate rolling device, method for pre-lithiating negative plate by using same and application of negative plate rolling device |
| CN112170488A (en) * | 2019-07-05 | 2021-01-05 | 宁德时代新能源科技股份有限公司 | Mechanism for forming lithium film and device for supplementing lithium to pole piece |
| CN112186132A (en) * | 2019-07-05 | 2021-01-05 | 宁德时代新能源科技股份有限公司 | Device for lithium supplement of pole piece |
| CN115475831A (en) * | 2022-09-29 | 2022-12-16 | 广东捷盟智能装备有限公司 | Rolling method and rolling system for material belt |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1248110A1 (en) * | 1985-04-01 | 1996-01-10 | Уральский политехнический институт им.С.М.Кирова | Method of step-type rolling of casting and mill for its realization |
| JP2001205305A (en) * | 2000-01-28 | 2001-07-31 | Nippon Steel Corp | Mill and method for rolling sheet strip |
| KR100788881B1 (en) * | 2007-02-27 | 2007-12-27 | 김창락 | Dual pass milling apparatus and the method thereof |
| CN104169012A (en) * | 2012-02-24 | 2014-11-26 | 丹尼尔和科菲森梅克尼齐有限公司 | Method for controlling a two continuous strands rolling plant |
| CN104332586A (en) * | 2014-09-02 | 2015-02-04 | 惠州亿纬锂能股份有限公司 | Production method and production equipment of ultrathin lithium belt |
| CN204558583U (en) * | 2015-04-29 | 2015-08-12 | 宁德时代新能源科技有限公司 | Lithium band production equipment |
| CN106981625A (en) * | 2017-05-27 | 2017-07-25 | 天津中能锂业有限公司 | A kind of production method of complex lithium band |
| CN207899864U (en) * | 2018-03-05 | 2018-09-25 | 中航锂电技术研究院有限公司 | Double lithium foil preparation facilities |
-
2018
- 2018-03-05 CN CN201810177537.3A patent/CN108188180B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1248110A1 (en) * | 1985-04-01 | 1996-01-10 | Уральский политехнический институт им.С.М.Кирова | Method of step-type rolling of casting and mill for its realization |
| JP2001205305A (en) * | 2000-01-28 | 2001-07-31 | Nippon Steel Corp | Mill and method for rolling sheet strip |
| KR100788881B1 (en) * | 2007-02-27 | 2007-12-27 | 김창락 | Dual pass milling apparatus and the method thereof |
| CN104169012A (en) * | 2012-02-24 | 2014-11-26 | 丹尼尔和科菲森梅克尼齐有限公司 | Method for controlling a two continuous strands rolling plant |
| CN104332586A (en) * | 2014-09-02 | 2015-02-04 | 惠州亿纬锂能股份有限公司 | Production method and production equipment of ultrathin lithium belt |
| CN204558583U (en) * | 2015-04-29 | 2015-08-12 | 宁德时代新能源科技有限公司 | Lithium band production equipment |
| CN106981625A (en) * | 2017-05-27 | 2017-07-25 | 天津中能锂业有限公司 | A kind of production method of complex lithium band |
| CN207899864U (en) * | 2018-03-05 | 2018-09-25 | 中航锂电技术研究院有限公司 | Double lithium foil preparation facilities |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170488A (en) * | 2019-07-05 | 2021-01-05 | 宁德时代新能源科技股份有限公司 | Mechanism for forming lithium film and device for supplementing lithium to pole piece |
| CN112186132A (en) * | 2019-07-05 | 2021-01-05 | 宁德时代新能源科技股份有限公司 | Device for lithium supplement of pole piece |
| CN111312983A (en) * | 2020-02-25 | 2020-06-19 | 惠州亿纬锂能股份有限公司 | Negative plate rolling device, method for pre-lithiating negative plate by using same and application of negative plate rolling device |
| CN115475831A (en) * | 2022-09-29 | 2022-12-16 | 广东捷盟智能装备有限公司 | Rolling method and rolling system for material belt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108188180B (en) | 2024-03-01 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Applicant after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant before: Kaibo Energy Technology Co.,Ltd. Applicant before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: Kaibo Energy Technology Co.,Ltd. Applicant after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: No.88 Jintan Avenue, Jintan District, Changzhou City, Jiangsu Province Applicant before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. Applicant before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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Effective date of registration: 20220110 Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Applicant after: Zhongchuangxin Aviation Technology Co.,Ltd. Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant before: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Applicant before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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Country or region after: China Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Applicant after: China Innovation Aviation Technology Group Co.,Ltd. Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant before: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Country or region before: China Applicant before: Zhongchuangxin Aviation Technology Co.,Ltd. |
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