CN107359307A - Electrodes of lithium-ion batteries mends lithium device - Google Patents
Electrodes of lithium-ion batteries mends lithium device Download PDFInfo
- Publication number
- CN107359307A CN107359307A CN201710451537.3A CN201710451537A CN107359307A CN 107359307 A CN107359307 A CN 107359307A CN 201710451537 A CN201710451537 A CN 201710451537A CN 107359307 A CN107359307 A CN 107359307A
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- Prior art keywords
- lithium
- lithium metal
- pole piece
- electrodes
- ion batteries
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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
- 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
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1395—Processes of manufacture of electrodes based on metals, Si or alloys
-
- 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
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- 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)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to pole piece processing unit technical field, more particularly to a kind of electrodes of lithium-ion batteries mends lithium device, including unreeling device for pole piece, pole piece wrap-up, lithium metal cold press device and lithium metal feeding mechanism, lithium metal is arranged between unreeling device for pole piece and pole piece wrap-up for lithium device, lithium metal cold press device is arranged between lithium metal feeding mechanism and pole piece wrap-up, and lithium metal feeding mechanism is arranged to squash type lithium metal feeding mechanism.The present invention can efficiently, it is quantitative, uniformly pole piece is handled, and simple in construction, cost is cheap, relatively low to environmental requirement, realizes that industrialized mass production is supplied.
Description
The application be Application No. 201310461257.2, the applying date be on October 8th, 2013, it is entitled " lithium from
The divisional application of the application for a patent for invention of sub- battery pole piece benefit lithium device ".
Technical field
The invention belongs to pole piece processing unit technical field, more particularly to a kind of electrodes of lithium-ion batteries to mend lithium device.
Background technology
Since Sony corporation of Japan realizes commercialization to lithium ion battery material, lithium ion battery is because of its light weight, electricity
Pressure height, small volume, memory-less effect, have extended cycle life, environment-friendly many advantages, such as higher than energy, and rapidly portable
The field popularization and application of the portable type electronic product such as portable power source, mobile phone, portable computer, camera and video camera, and
Energy field occupies critical positions.
Constantly expand with the application field of lithium ion battery, various products to the performance requirement of lithium ion battery increasingly
It is high.As miniature portable electronic product requires that lithium ion battery has longer usage time, therefore just to lithium ion battery
Energy density propose higher and higher requirement.For existing negative material, not only can during initial charge
Lithium ion of the part in positive electrode is consumed because forming solid electrolyte film (SEI films), but also because of a part of lithium
Irreversible abjection of the ion in negative material so that the coulombic efficiency first of lithium ion battery can not reach 100%, such as stone
The coulombic efficiency first of ink material is 90% or so, other negative materials such as silicium cathode material, although specific capacity is higher, its
Coulombic efficiency is only between 65-85% first.So if can additionally it replenish in the positive electrode being lost in negative material
Lithium ion, it becomes possible to increase substantially the energy density of lithium ion battery.
A kind of extra method for mending lithium is that a part of lithium metal is added in pole piece in advance before battery core is prepared, such as
Expensive metallic lithium powder is made gold by the Chinese patent application of Application No. 201210237240 by making alive and vibrations
Category lithium powder is invested on pole piece, and the pole piece of lithium then must be mended by cold compaction.Metallic lithium powder is invested to the benefit on pole piece in this application
Lithium process needs high-precision equipment, moreover, this method is mainly to compare to be difficult to ensure that card is uniform come what is realized by electrostatic vibrations
Property, lithium amount monitoring difficulty is mended, while requirement of this method for environment is high, it is necessary to which the metallic lithium powder to disperse is placed in into special set
Handled in standby, and it is less efficient.
Continuous thin metal lithium bands are made because more difficult under the conditions of current technology, simultaneously as the mechanicalness of lithium metal
It poor can also be difficult to realize and invest thin lithium metal on pole piece, if lithium metal is invested into pole piece using the method for vacuum evaporation
On, then the difficult requirement for meeting largely to produce of the very low comparison of the structural establishment production efficiency, while the method being deposited is exigent
Control accuracy and waste to lithium metal is than more serious.
The content of the invention
It is an object of the invention to：In view of the shortcomings of the prior art, a kind of electrodes of lithium-ion batteries is provided and mends lithium device,
The device can quick, efficient, uniform, the quantitative pole piece to lithium ion battery enclose lithium metal.
To achieve the above object, the present invention adopts the following technical scheme that：Electrodes of lithium-ion batteries mends lithium device, including pole piece
Unwinding device, pole piece wrap-up, lithium metal cold press device and lithium metal feeding mechanism, the lithium metal feeding mechanism are arranged at
Between unreeling device for pole piece and the pole piece wrap-up, the lithium metal cold press device is arranged at the lithium metal feeding mechanism
Between the pole piece wrap-up, the lithium metal feeding mechanism is arranged to squash type lithium metal feeding mechanism.
The squash type lithium metal feeding mechanism includes booster body, pressure drive mechanism, lithium metal silk extrusion head and gold
Belong to lithium silk extruding shell, the lithium metal silk extrusion head is arranged in the lithium metal silk extruding shell, and the lithium metal silk squeezes
Pressure head is connected by the pressure drive mechanism with the booster body, and the bottom of the lithium metal silk extruding shell is provided with extrusion
Mouth.
The squash type lithium metal feeding mechanism also includes lithium metal cooling body, and the lithium metal silk extruding shell is arranged at
In the lithium metal cooling body.
The lithium metal cooling body is air-cooled metal lithium cooling body or liquid-cooled lithium metal cooling body.
The lithium metal silk extrusion head is tightly connected by the pressure drive mechanism and the booster body.
The booster body is arranged to pneumatic type booster body, fluid pressure type booster body or electrodynamic type booster body.
The unreeling device for pole piece includes emptying roller, unwinding tension regulating roller, registration roller and the first transmission set gradually
Roller, the nozzle are correspondingly arranged with first live-roller.
The pole piece wrap-up includes protection baffle plate, fixed mount, correction detector, the second live-roller, winding tension and adjusted
Roller and wind-up roll are saved, the correction detector is arranged at the fixed mount, and the protection baffle plate setting is in the top of the fixed mount
Portion, second live-roller are arranged at the bottom of the fixed mount, and the winding tension regulating roller is located at second live-roller
Between the wind-up roll.
The lithium metal cold press device includes cold pressing drive roll and driven with the cold pressing that is arranged side by side of cold pressing drive roll
Roller, gap is provided between the cold pressing drive roll and the cold pressing driven voller.
Relative to prior art, the present invention at least has advantages below：1) preparation of the invention by lithium metal needed for battery core
It is combined into one with lithium up process, wherein lithium metal silk is squeezed on the pole piece of drying process by lithium up process, real after cold pressing
Existing electrodes of lithium-ion batteries lithium up process.The benefit lithium device can be completed to mend lithium in the normal temperature environment of low humidity, substantially reduce
Requirement of the lithium up process for environment.2) present invention can exchange extrusion head according to the requirement of technique, realize that benefit lithium amount is controllable,
If it can also realize two-sided benefit lithium using double extrusion heads while carry out；And the present invention is simple in construction, production efficiency is high.3) this hair
Lithium used in bright is lithium metal ingot, and cost is cheap；Can under the lithium ingot normal temperature need to only be extruded, technique is very simple；Cause
This easily realizes industrialized mass production.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the enlarged drawing at Fig. 1 A.
Wherein, 1 --- --- pole piece wrap-up, 3 --- lithium metal cold press device, 4 --- gold of unreeling device for pole piece, 2
Category lithium feeding mechanism, 11 --- emptying roller, 12 --- unwinding tension regulating roller, 13 --- registration roller, 14 --- first live-roller,
21 --- protection baffle plate, 22 --- fixed mount, 23 --- correction detector, 24 --- the second live-roller, 25 --- winding tensions
Regulating roller, 26 --- wind-up roll, 31 --- cold pressing drive roll, 32 --- cold pressing driven voller, 41 --- booster body, 42 --- pressure
Force transmission mechanism, 43 --- lithium metal silk extrusion head, 44 --- lithium metal silk extruding shell, 45-lithium metal cooling body,
46 --- nozzle.
Embodiment
With reference to embodiment and Figure of description, the present invention is described in further detail, but the present invention
Embodiment not limited to this.
Embodiment 1, as shown in figure 1, electrodes of lithium-ion batteries mends lithium device, including unreeling device for pole piece 1, pole piece
Wrap-up 2, lithium metal cold press device 3 and lithium metal feeding mechanism 4, lithium metal feeding mechanism 4 are arranged at unreeling device for pole piece 1
Between pole piece wrap-up 2, lithium metal cold press device 3 is arranged between lithium metal feeding mechanism 4 and pole piece wrap-up 2,
Lithium metal feeding mechanism 4 is arranged to squash type lithium metal feeding mechanism, squash type lithium metal feeding mechanism include booster body 41,
Pressure drive mechanism 42, lithium metal silk extrusion head 43 and lithium metal silk extruding shell 44, lithium metal silk extrusion head 43 are arranged at metal
In lithium silk extruding shell 44, and lithium metal silk extrusion head 43 is connected by pressure drive mechanism 42 with booster body 41, lithium metal
Silk extrusion head 43 is high voltage bearing metal material, and surface treated and the caking property of lithium metal are relatively low, thus compare appearance
Easily extrusion lithium metal, booster body 41 are arranged to pneumatic type booster body, and the bottom of lithium metal silk extruding shell 44 is provided with extrusion
Mouth 46, the cross sectional shape of nozzle 46 is square, oval, circular or trapezoidal, and the big I of nozzle 46 is set as needed
It is fixed.It is to apply certain force nozzle 46 by pressure drive mechanism 42 to quantify lithium metal that the present invention carries out mending lithium to pole piece
Uniformly it is attached on the pole piece through drying process.
Squash type lithium metal feeding mechanism also includes lithium metal cooling body 45, and lithium metal silk extruding shell 44 is arranged at metal
In lithium cooling body 45, in general, lithium metal cooling body 45 is air-cooled metal lithium cooling body, and air-cooled metal lithium cools down
Mechanism plays cooling effect in extrusion process to lithium metal, reduces the adhesive tape between lithium metal and lithium metal silk extrusion head 43
The resistance come.
Preferably, lithium metal silk extrusion head 43 is tightly connected by pressure drive mechanism 42 and booster body 41, ensure that
The uniformity of power in lithium metal silk extrusion process.
Unreeling device for pole piece 1 passes including emptying roller 11, unwinding tension regulating roller 12, the registration roller 13 and first set gradually
Dynamic roller 14, nozzle 46 are correspondingly arranged with the first live-roller 14, and the lithium metal that nozzle 46 is extruded passes through the first live-roller 14
Drive is attached on the pole piece on the first live-roller 14.
Pole piece wrap-up 2 includes protection baffle plate 21, fixed mount 22, correction detector 23, the second live-roller 24, winding
Power regulating roller 25 and wind-up roll 26, correction detector 23 are arranged at fixed mount 22, and protection baffle plate 21 is arranged at the top of fixed mount 22
Portion, play a part of protection, the second live-roller 24 is arranged at the bottom of fixed mount 22, and winding tension regulating roller 25 passes positioned at second
Dynamic to adjust the tension force of winding in time as needed between roller 24 and wind-up roll 26, correction detector 23 detects pole piece receipts
When volume shifts, wind-up roll 26 receives signal and will rectified a deviation, and realizes winding effect well.
Lithium metal cold press device 3 includes cold pressing drive roll 31 and the cold pressing driven voller being arranged side by side with cold pressing drive roll 31
32, being cold-pressed drive roll 31 certainly and being cold-pressed driven voller 32 to exchange, not necessarily up be exactly be cold-pressed drive roll 31, under
Side must be just cold pressing driven voller 32, be cold-pressed drive roll 31 and cold pressing driven voller 32 is reduced by surface treatment and metal
The caking property of lithium, it is cold-pressed between drive roll 31 and cold pressing driven voller 32 and is provided with gap, lithium metal is realized by gap length
With the contact area size of pole piece, gap is smaller, and the caking property of corresponding lithium metal and pole piece is better, otherwise caking property is poorer.
In drying shed, the pole piece core to be mended of toasted mistake is positioned over emptying roller 11 and sequentially passes through unwinding tension
Regulating roller 12, registration roller 13, the first live-roller 14, lithium metal cold press device 3 (i.e. be cold-pressed drive roll 31 and cold pressing driven voller 32),
Second live-roller 24, winding tension regulating roller 25 and wind-up roll 26, wherein emptying roller 11, unwinding tension regulating roller 12, registration roller
13rd, the first live-roller 14, protection baffle plate 21, correction detector 23, the second live-roller 24, winding tension regulating roller 25 and wind-up roll
26 collective effects realize pole piece mend lithium continuity, greatly improve operating efficiency, and control mend lithium film roll it is smooth with it is neat
Stack.After pole piece fixes as described above, booster body 41 is started working, and the start-up operation of pressure drive mechanism 42 will after pressure increase
The lithium metal of solid-state is extruded in lithium metal silk extrusion head 43, and the lithium metal after compression starts to extrude from nozzle 46,
Now unreeling device for pole piece 1, pole piece wrap-up 2 and lithium metal cold press device 3 are started working, and lithium metal silk squeezes from lithium metal silk
In pressure head 43 out after be attached on the pole piece continuously walked about, when be attached with the pole piece of lithium metal silk by cold pressing drive roll 31 with
Cold pressing driven voller 32 between gap after lithium metal silk be driven plain, realize mend lithium area increase, while realize lithium metal with
The good caking property of pole piece.When pressure drive mechanism 42 is started working, lithium metal can rub with lithium metal silk extrusion head 43
Substantial amounts of heat is produced, the heat can not only increase the cohesive force of lithium metal and lithium metal silk extrusion head 43, and the change of heat can be led
The mobility increase and reactivity increase of metal are caused, causes benefit lithium amount to change, now opening metal lithium cooling body 45
The lithium metal of inside is cooled down so that lithium up process is controllable.By controlling the shape of lithium metal silk extrusion head 43 to obtain not
With the lithium metal of thickness and shape, lithium amount is mended in regulation.
Embodiment 2, unlike embodiment 1：The lithium metal cooling body 45 of present embodiment is
Liquid-cooled lithium metal cooling body, cooling effect is played to lithium metal using liquid-cooled lithium metal cooling body and become apparent, increased
Press mechanism 41 is arranged to fluid pressure type booster body, with the 45 supporting setting of lithium metal cooling body so that structure of the present invention is simpler.
Other structures are identical with the structure of embodiment 1, repeat no more here.
Embodiment 3, unlike embodiment 2：The booster body 41 of present embodiment is arranged to electricity
Dynamic formula booster body, meets the setting requirements of modernization, and the power effect of electrodynamic type booster body is more preferable.
Other structures are identical with the structure of embodiment 2, repeat no more here.
In summary：Lithium device is mended using the electrodes of lithium-ion batteries, can be uniform to pole piece, fixed with very effective realization
Amount, efficient processing；The present invention is combined into one by prepared by lithium metal silk with pole piece benefit two processes of lithium simultaneously, metal used
Lithium is lithium metal ingot, and pole piece is the pole piece after baking processing after coating, therefore the apparatus structure is simple, and cost is cheap, easily in fact
Existing industrialized mass production.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in above-mentioned embodiment, every those skilled in the art exist
Made any conspicuously improved, replacement or modification belong to protection scope of the present invention on the basis of the present invention.This
Outside, although having used some specific terms in this specification, these terms merely for convenience of description, not to the present invention
Form any restrictions.
Claims (10)
1. electrodes of lithium-ion batteries mends lithium device, including unreeling device for pole piece, pole piece wrap-up and lithium metal feeding mechanism, institute
Lithium metal feeding mechanism is stated to be arranged between the unreeling device for pole piece and the pole piece wrap-up, it is characterised in that：It is described
Lithium metal feeding mechanism is provided with lithium metal cooling body.
2. electrodes of lithium-ion batteries according to claim 1 mends lithium device, it is characterised in that：The lithium metal feeding mechanism
Squash type lithium metal feeding mechanism is arranged to, the squash type lithium metal feeding mechanism includes lithium metal silk extrusion head, lithium metal
Silk extruding shell and the lithium metal cooling body, the lithium metal silk extrusion head are arranged in the lithium metal silk extruding shell,
The lithium metal silk extruding shell is arranged in the lithium metal cooling body.
3. electrodes of lithium-ion batteries according to claim 2 mends lithium device, it is characterised in that：The squash type lithium metal supplies
Device is answered also to include booster body and pressure drive mechanism, the lithium metal silk extrusion head passes through the pressure drive mechanism and institute
Booster body connection is stated, the bottom of the lithium metal silk extruding shell is provided with nozzle.
4. electrodes of lithium-ion batteries according to claim 1 mends lithium device, it is characterised in that：The lithium metal cooling body
For air-cooled metal lithium cooling body or liquid-cooled lithium metal cooling body.
5. electrodes of lithium-ion batteries according to claim 3 mends lithium device, it is characterised in that：The lithium metal silk extrusion head
It is tightly connected by the pressure drive mechanism and the booster body.
6. electrodes of lithium-ion batteries according to claim 3 mends lithium device, it is characterised in that：The booster body is arranged to
Pneumatic type booster body, fluid pressure type booster body or electrodynamic type booster body.
7. electrodes of lithium-ion batteries according to claim 3 mends lithium device, it is characterised in that：The unreeling device for pole piece bag
Include the emptying roller set gradually, unwinding tension regulating roller, registration roller and the first live-roller, the nozzle and the described first transmission
Roller is correspondingly arranged.
8. electrodes of lithium-ion batteries according to claim 1 mends lithium device, it is characterised in that：The pole piece wrap-up bag
Include protection baffle plate, fixed mount, correction detector, the second live-roller, winding tension regulating roller and wind-up roll, the correction detector
The fixed mount is arranged at, in the top of the fixed mount, second live-roller is arranged at described the protection baffle plate setting
The bottom of fixed mount, the winding tension regulating roller is between second live-roller and the wind-up roll.
9. electrodes of lithium-ion batteries according to claim 1 mends lithium device, it is characterised in that：The electrodes of lithium-ion batteries
Mending lithium device also includes lithium metal cold press device, and the lithium metal cold press device is arranged at the lithium metal feeding mechanism and described
Between pole piece wrap-up.
10. electrodes of lithium-ion batteries according to claim 9 mends lithium device, it is characterised in that：The lithium metal cold pressing dress
Put including cold pressing drive roll and with the cold pressing driven voller that is arranged side by side of cold pressing drive roll, the cold pressing drive roll with it is described cold
Gap is provided between pressure driven voller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710451537.3A CN107359307B (en) | 2013-10-08 | 2013-10-08 | Lithium ion battery pole piece lithium supplementing device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310461257.2A CN103545486B (en) | 2013-10-08 | 2013-10-08 | Electrodes of lithium-ion batteries mends lithium device |
| CN201710451537.3A CN107359307B (en) | 2013-10-08 | 2013-10-08 | Lithium ion battery pole piece lithium supplementing device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310461257.2A Division CN103545486B (en) | 2013-10-08 | 2013-10-08 | Electrodes of lithium-ion batteries mends lithium device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107359307A true CN107359307A (en) | 2017-11-17 |
| CN107359307B CN107359307B (en) | 2020-10-27 |
Family
ID=49968728
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710451537.3A Active CN107359307B (en) | 2013-10-08 | 2013-10-08 | Lithium ion battery pole piece lithium supplementing device |
| CN201310461257.2A Active CN103545486B (en) | 2013-10-08 | 2013-10-08 | Electrodes of lithium-ion batteries mends lithium device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310461257.2A Active CN103545486B (en) | 2013-10-08 | 2013-10-08 | Electrodes of lithium-ion batteries mends lithium device |
Country Status (1)
| Country | Link |
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| CN (2) | CN107359307B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878779A (en) * | 2018-07-19 | 2018-11-23 | 包海亮 | A kind of lithium battery electrode plate pre-doping lithium device and its doping method |
| CN110201848A (en) * | 2019-05-29 | 2019-09-06 | 深圳市倍特力电池有限公司 | The pole piece of lithium ion battery mends lithium system |
| CN114937757A (en) * | 2022-03-08 | 2022-08-23 | 浙江南都电源动力股份有限公司 | Pole piece lithium supplementing device and lithium supplementing method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025367B (en) * | 2016-07-14 | 2018-05-22 | 宁德时代新能源科技股份有限公司 | Calendering tectorial membrane mends lithium all-in-one |
| CN106364127B (en) * | 2016-09-20 | 2018-04-06 | 宁德时代新能源科技股份有限公司 | Intermittent double-sided film laminating device |
| CN106169557B (en) * | 2016-10-10 | 2018-10-26 | 宁德时代新能源科技股份有限公司 | Battery pole piece film covering device |
| CN110459731B (en) * | 2019-08-17 | 2021-06-22 | 珠海冠宇电池股份有限公司 | Lithium ion battery negative pole piece lithium supplementing device and lithium supplementing method |
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| CN101157076A (en) * | 2007-11-14 | 2008-04-09 | 中国乐凯胶片集团公司 | A pole piece coating method and coating nozzle |
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| CN103208612B (en) * | 2013-03-25 | 2017-02-15 | 东莞新能源科技有限公司 | Continuous lithium powder replenishing method for both sides of lithium ion battery negative plate |
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| CN1317842A (en) * | 2000-03-17 | 2001-10-17 | 索尼株式会社 | Method of mfg. battery |
| CN102779978A (en) * | 2012-07-10 | 2012-11-14 | 宁德新能源科技有限公司 | Device and method for replenishing lithium powder into lithium ion battery cathode sheet |
| CN202893867U (en) * | 2012-10-31 | 2013-04-24 | 成都航发液压工程有限公司 | Extruding drum of lithium metal extruder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108878779A (en) * | 2018-07-19 | 2018-11-23 | 包海亮 | A kind of lithium battery electrode plate pre-doping lithium device and its doping method |
| CN108878779B (en) * | 2018-07-19 | 2020-10-27 | 安徽锂天下电子科技有限公司 | Lithium pre-doping device and method for electrode plate of lithium battery |
| CN110201848A (en) * | 2019-05-29 | 2019-09-06 | 深圳市倍特力电池有限公司 | The pole piece of lithium ion battery mends lithium system |
| CN114937757A (en) * | 2022-03-08 | 2022-08-23 | 浙江南都电源动力股份有限公司 | Pole piece lithium supplementing device and lithium supplementing method |
| CN114937757B (en) * | 2022-03-08 | 2023-12-01 | 浙江南都电源动力股份有限公司 | Pole piece lithium supplementing device and lithium supplementing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103545486B (en) | 2017-07-18 |
| CN107359307B (en) | 2020-10-27 |
| CN103545486A (en) | 2014-01-29 |
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