CN204966620U - Lithium supplementing device of lithium ion battery pole piece - Google Patents
Lithium supplementing device of lithium ion battery pole piece Download PDFInfo
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- CN204966620U CN204966620U CN201520748174.6U CN201520748174U CN204966620U CN 204966620 U CN204966620 U CN 204966620U CN 201520748174 U CN201520748174 U CN 201520748174U CN 204966620 U CN204966620 U CN 204966620U
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- 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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- 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
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Abstract
The utility model belongs to the lithium ion battery pole piece field of making especially relates to the benefit lithium device of a lithium ion battery pole piece. Lithium supplementing device of lithium ion battery pole piece, including the pole piece coiling mechanism, pole piece unwinding device and hold the electrolyte reservoir of electrolyte, still including set up in quilt in the electrolyte reservoir the confession lithium device that electrolyte soaks, supply the lithium device with the pole piece soak in the pole piece of electrolyte dipes the part and is in keep in contact among the pole piece data send process. This benefit lithium device can be in succession, even, high -efficiently, quantitative mend the lithium to the lithium ion battery pole piece, and low in production cost, can solve effectively that the lithium ion battery who exists is initial to fill the problem that discharge efficiency is low among the prior art.
Description
Technical field
The utility model belongs to electrodes of lithium-ion batteries and manufactures field, especially relates to a kind of benefit lithium device of electrodes of lithium-ion batteries.
Background technology
Lithium ion battery due to its have that voltage is high, the advantage such as energy density is large, long service life, pollution-free and self discharge are little, be widely used in portable electric appts and electric automobile.At present, the negative material of commercial li-ion battery is mainly graphite cathode material, and its theoretical capacity is 372mAh/g, and actual development is close to theoretical capacity, can development space limited, can not adapt to the demand of electric automobile to high-capacity high-power lithium ion battery.
Some novel negative materials can have very high theoretical capacity, and the theoretical capacity of such as silicon is 4200mAh/g, but its first charge-discharge efficiency is all lower.When these negative materials and positive electrode are matched to battery, a large amount of lithium ions is just consumed and cannot gets back to positive pole after first time charging.The object of original employing Large Copacity negative pole is exactly the population size increasing battery, but the low actual capacity that seriously can reduce lithium battery on the contrary of first charge-discharge efficiency, limit its application.
In lithium battery, the loss of irreversible capacity first directly causes the loss of the energy content of battery.In fact capacitance loss is exactly the loss of lithium, and such as efficiency is 75% first, then after first time charging, the lithium of 25% just irreversibly consumes.At present, low having become of first charge-discharge efficiency hinders many negative materials, and especially jumbo negative material realizes the technical bottleneck of commercial applications.So, need a kind of effective and practical technology of exploitation fundamentally to solve the low problem of lithium battery first charge-discharge efficiency.In cathode pole piece, add metallic lithium powder more than needed, be the directly the most cheap mode addressed this problem.But metallic lithium powder is very unstable in atmosphere, causes impassable obstacle to actual production.
Chinese patent application publication number is that metal lithium sheet is covered anode strip surface by the patent employing of CN1177417A, and then winding makes battery, and the method for Reperfu-sion electrolyte prepares rich lithium ion battery.When using the method to mend lithium, because existing technique cannot produce the metal lithium sheet of thinner thickness, therefore the lithium amount often causing anode strip to absorb is far smaller than the lithium amount that metal lithium sheet provides, and makes to mend lithium excessive, causes battery core to occur analysing the problem such as lithium, cycle performance difference.Chinese patent application publication number is that the patent of CN103199217A proposes, the metal lithium sheet after punching is adopted to cover anode strip surface, then winding makes battery, the method of Reperfu-sion electrolyte prepares rich lithium ion battery, to some extent solves the problem cannot producing enough thin metal lithium sheet.But when the amount of battery core required benefit lithium is lower, require that the lithium sheet area that is enough thin or punching lithium sheet mesopore used is enough large, no matter that lithium sheet does thin or punch density and strengthens (when punch density is excessive, lithium sheet very easily ruptures, be not easy to produce), the production cost of battery core all can be made sharply to increase.
In addition, the method that dry powder can also be adopted to add adds lithium powder to negative plate surface, but due to lithium powder very active, operation controlled condition is very strict; And easily float in atmosphere due to lithium powder, also can bring larger potential safety hazard to operation.
Utility model content
The utility model is for the deficiencies in the prior art, provide a kind of electrodes of lithium-ion batteries and mend lithium device, this benefit lithium device can be continuous, even, efficient, quantitative benefit lithium is carried out to lithium ion battery negative electrode (such as silicon materials cathode pole piece, silicon carbon material cathode pole piece etc.), and production cost is low, the problem that the lithium ion battery first charge-discharge efficiency that exists in prior art is low effectively can be solved.
To achieve these goals, the technical solution adopted in the utility model is: electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up, unreeling device for pole piece, waits mend the pole piece of lithium and hold the electrolytic bath of electrolyte; Also comprise and be arranged at the interior confession lithium device infiltrated by described electrolyte of described electrolytic bath; The pole piece immersion part that described confession lithium device and pole piece immerse described electrolyte keeps in touch in described pole piece transport process.
In the utility model, pole piece wrap-up and unreeling device for pole piece can be the existing devices possessing unwinding and rewinding function, and such as wind-up roll can be connected motor and make driving wheel, let off roll is driven pulley, realizes unwinding and rewinding function; Pole piece wrap-up can also be set to comprise the live-roller connecting motor, dance roller, the compositions such as registration roller and deviation rectification roller detector.
In some embodiments of the utility model, the pole piece immersion part immersing described electrolyte for lithium device and described pole piece remains and contacts, form electronics and contacted with ions passage, when lithium ion tunnel is communicated with electron channel simultaneously, the electrical potential difference itself existed between negative active core-shell material that pole piece applies (in such as cathode pole piece in silicon materials, cathode pole piece silicon carbon material etc.) and lithium metal can impel lithium metal to form lithium ion fast, slip into pole piece negative active core-shell material inside by electrolyte transmission, reach fast, evenly mend the object of lithium.
In addition, in certain embodiments, pole piece remains with confession lithium device and contacts in transport process, namely the utility model to be movably set in described electrolytic bath for lithium device and can to rotate, synchronously driven by driver motor or separate electrical motor drive make itself and described pole piece keep Synchronous Transmission, as supplied lithium device can be rosette or metallic roll etc. in some embodiments of the utility model, it be kept in touch by outer circumference surface and described pole piece.Also can be that other any shape can provide the device in lithium source and remain in transmission process with described pole piece and contacts for lithium device in some embodiments of the utility model.Because whole lithium up process is carried out continuously, therefore ensure that the stability of negative pole performance after mending lithium and greatly reduce production cost.In the utility model, electrolyte can be the electrolyte that any common prior art uses.
As preferably, described at least one surface for lithium device and described pole piece immersion part is kept in touch in described pole piece transport process.Can ensure to obtain a larger contact area in contact process with the surface contact of pole piece, can improve mend lithium efficiency while obtain evenly benefit lithium effect.
As preferably, be describedly at least two for lithium device.According to specific needs the number supplying lithium device can be set as mended lithium amount.
As preferably, described arrange in pairs for lithium device and often pair keep in touch with two surfaces of described pole piece immersion part respectively for lithium device.Arrange in pairs and can mend lithium to the negative plate positive and negative of double spread simultaneously obtain preferably effect.
As preferably, described is the round roller that surface is surrounded by lithium metal for lithium device; The outer circumference surface that described surface is surrounded by the round roller of lithium metal contacts with described pole piece immersion part holding surface in described pole piece transport process.The round roller that surface is surrounded by lithium metal can ensure less friction when contacting with described pole piece in transport process, namely can ensure that the active material of pole piece is without prejudice to obtain preferably electrical property.Meanwhile, face contact can ensure to obtain a larger contact area in contact process, can improve mend lithium efficiency while obtain evenly benefit lithium effect.
As preferably, the width of described pole piece is less than the width that described surface is surrounded by the round roller of lithium metal.
As preferably, described pole piece is silicon-based anode pole piece, silicon-carbon cathode pole piece or tin base cathode pole piece.Refer to when silicon-based anode pole piece, silicon-carbon cathode pole piece or tin base cathode pole piece described in some embodiments of the utility model that the negative electrode active material contained in pole piece is silicon, silicon-carbon or tin.
Electrodes of lithium-ion batteries in some embodiments of the utility model mends lithium device, comprises pole piece wrap-up, unreeling device for pole piece, waits mend the pole piece of lithium and hold the electrolytic bath of electrolyte; Also comprise and be arranged at the interior confession lithium device infiltrated by described electrolyte of described electrolytic bath; The described lithium outside of deivce bread that supplies is covered with porous septum; The described pole piece immersion part that lithium device and described pole piece immerse described electrolyte that supplies being coated with porous septum keeps in touch in described pole piece transport process, described electrolytic bath is connected with power supply, the described lithium device that supplies is connected with positive source, and described pole piece is connected with power cathode.Benefit lithium can be made more efficient by switching on power.In the utility model, the electric current of power supply is not restricted; In some embodiments of the utility model, porous septum can be the porous septum used in prior art.
Accompanying drawing explanation
Fig. 1: the utility model lithium ion battery mends the structural representation of lithium device;
Fig. 2: the utility model lithium ion battery mends pole piece and the schematic cross-section for lithium device in lithium device.
In figure, 1-unreeling device for pole piece, 2-pole piece wrap-up, 3-pole piece, 4-are for lithium device, 5-electrolyte, 6-electrolytic bath.
Embodiment
Following specific embodiment is described in detail the utility model, but the utility model is not restricted to following examples.
Embodiment 1:
A kind of electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up 2, unreeling device for pole piece 1, waits mend the pole piece 3 of lithium and hold the electrolytic bath 6 of electrolyte 5; Also comprise and be arranged at the interior confession lithium device 4 infiltrated by described electrolyte 5 of described electrolytic bath 6; The described pole piece immersion part supplying lithium device 4 and described pole piece 3 to be infiltrated on described electrolyte 5 keeps in touch in described pole piece 3 transport process.In lithium up process, described pole piece is driven along direction transmission shown in Fig. 1 arrow (also can be other direction transmission) by winding wheel, keeps in touch to carry out benefit lithium in transmission process with described for lithium device 4.Mend lithium effect preferably to obtain, described at least one surface for lithium device 4 and described pole piece immersion part is kept in touch in described pole piece 3 transport process.Described can be one or more for lithium device.Further, described pole piece 3 can be silicium cathode pole piece, silicon-carbon cathode pole piece or tin cathode pole piece.
Embodiment 2:
A kind of electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up 2, unreeling device for pole piece 1, waits mend the pole piece 3 of lithium and hold the electrolytic bath 6 of electrolyte 5; Also comprise and be arranged at the interior confession lithium device 4 infiltrated by described electrolyte 5 of described electrolytic bath 6; The described pole piece immersion part supplying lithium device 4 and described pole piece 3 to be infiltrated on described electrolyte 5 keeps in touch in described pole piece 3 transport process.In lithium up process, described pole piece is driven along direction transmission shown in Fig. 1 arrow by winding wheel, keeps in touch to carry out benefit lithium in transmission process with described for lithium device 4.Mend lithium effect preferably to obtain, described at least one surface for lithium device 4 and described pole piece immersion part is kept in touch in described pole piece 3 transport process.The described lithium device 4 that supplies is at least two.And further, described arrange in pairs for lithium device 4 and often pair keep in touch with two surfaces of described pole piece immersion part respectively for lithium device 4.Two-sided benefit lithium can be realized efficiently.Further, described pole piece 3 can be silicium cathode pole piece, silicon-carbon cathode pole piece or tin cathode pole piece.
Embodiment 3:
A kind of electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up 2, unreeling device for pole piece 1, waits mend the pole piece 3 of lithium and hold the electrolytic bath 6 of electrolyte 5; Also comprise and be arranged at the interior confession lithium device 4 infiltrated by described electrolyte 5 of described electrolytic bath 6; Described is the round roller that surface is surrounded by lithium metal for lithium device 4; The outer circumference surface that described surface is surrounded by the round roller of lithium metal contacts with described pole piece immersion part holding surface in described pole piece transport process.In lithium up process, described pole piece is driven along direction transmission shown in Fig. 1 arrow by winding wheel, keeps in touch to carry out benefit lithium in transmission process with described for lithium device 4.Mend lithium effect preferably to obtain, the round roller of described lithium metal and at least one surface of described pole piece entering part are kept in touch in described pole piece 3 transport process.The width of described pole piece 3 is less than the width that described surface is surrounded by the round roller of lithium metal.Described pole piece 3 can be silicium cathode pole piece, silicon-carbon cathode pole piece or tin cathode pole piece.
Embodiment 4:
A kind of electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up 2, unreeling device for pole piece 1, waits mend the pole piece 3 of lithium and hold the electrolytic bath 6 of electrolyte 5; Also comprise and be arranged at the interior confession lithium device 4 infiltrated by described electrolyte 5 of described electrolytic bath 6; Described lithium device 4 outer surface that supplies is coated with porous septum; Described electrolytic bath 6 is connected with power supply, and the described lithium device 4 that supplies is connected with positive source, and described pole piece 3 is connected with power cathode.After power supply is connected, the both positive and negative polarity potential difference formed by power supply can make benefit lithium more efficient.The described pole piece immersion part supplying lithium device 4 to be infiltrated on described electrolyte 5 by porous septum and described pole piece 3 keeps in touch in described pole piece 3 transport process.In lithium up process, described pole piece is driven along direction transmission shown in Fig. 1 arrow (also can be other direction transmission) by winding wheel, keeps in touch to carry out benefit lithium in transmission process with the described porous septum for lithium device 4.Mend lithium effect preferably to obtain, the described porous septum of lithium device 4 and at least one surface of described pole piece immersion part of supplying is kept in touch in described pole piece 3 transport process.Described can be one or more for lithium device.Further, described pole piece 3 can be silicium cathode pole piece, silicon-carbon cathode pole piece or tin cathode pole piece.
Embodiment 5:
A kind of electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up 2, unreeling device for pole piece 1, waits mend the pole piece 3 of lithium and hold the electrolytic bath 6 of electrolyte 5; Also comprise and be arranged at the interior confession lithium device 4 infiltrated by described electrolyte 5 of described electrolytic bath 6; Described lithium device 4 outer surface that supplies is coated with porous septum; Described electrolytic bath 6 is connected with power supply, and the described lithium device 4 that supplies is connected with positive source, and described pole piece 3 is connected with power cathode.After power supply is connected, the both positive and negative polarity potential difference formed by power supply can make benefit lithium more efficient.The pole piece immersion part that the described porous septum for lithium device 4 and described pole piece 3 are infiltrated on described electrolyte 5 keeps in touch in described pole piece 3 transport process.In lithium up process, described pole piece is driven along direction transmission shown in Fig. 1 arrow by winding wheel, keeps in touch to carry out benefit lithium in transmission process with the described porous septum for lithium device 4.Preferably mending lithium effect to obtain, describedly to arrange in pairs for lithium device 4 and often pair of porous septum for lithium device 4 keeps in touch with two surfaces of described pole piece immersion part respectively.Two-sided benefit lithium can be realized efficiently.Further, described pole piece 3 can be silicium cathode pole piece, silicon-carbon cathode pole piece or tin cathode pole piece.
Embodiment 6:
A kind of electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up 2, unreeling device for pole piece 1, waits mend the pole piece 3 of lithium and hold the electrolytic bath 6 of electrolyte 5; Also comprise and be arranged at the interior confession lithium device 4 infiltrated by described electrolyte 5 of described electrolytic bath 6; Described is the round roller that surface is surrounded by lithium metal for lithium device 4; The described outer surface for round roller is coated with porous septum; Described porous septum and described pole piece immerse part holding surface in described pole piece transport process and contact.Described electrolytic bath 6 is connected with power supply, and the described lithium device 4 that supplies is connected with positive source, and described pole piece 3 is connected with power cathode.After power supply is connected, the both positive and negative polarity potential difference formed by power supply can make benefit lithium more efficient.In lithium up process, described pole piece is driven along direction transmission shown in Fig. 1 arrow by winding wheel, keeps in touch to carry out benefit lithium in transmission process with the described porous septum for lithium device 4.Mend lithium effect preferably to obtain, the described porous septum of lithium device 4 and at least one surface of described pole piece entering part of supplying is kept in touch in described pole piece 3 transport process.Described pole piece 3 can be silicium cathode pole piece, silicon-carbon cathode pole piece or tin cathode pole piece.
Claims (8)
1. electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up (2), unreeling device for pole piece (1), waits mend the pole piece (3) of lithium and hold the electrolytic bath (6) of electrolyte (5); It is characterized in that: also comprise and be arranged at interior confession lithium device (4) infiltrated by described electrolyte (5) of described electrolytic bath (6); The described pole piece immersing described electrolyte (5) for lithium device (4) and described pole piece (3) immerses and partly keeps in touch in described pole piece (3) transport process.
2. electrodes of lithium-ion batteries mends lithium device as claimed in claim 1, it is characterized in that: described confession lithium device (4) is kept in touch in described pole piece (3) transport process with at least one surface that described pole piece immerses part.
3. electrodes of lithium-ion batteries mends lithium device as claimed in claim 1, it is characterized in that: described lithium device (4) that supplies is at least two.
4. electrodes of lithium-ion batteries mends lithium device as claimed in claim 3, it is characterized in that: described arrange in pairs for lithium device (4) and often pair keep in touch with two surfaces of described pole piece immersion part respectively for lithium device (4).
5. electrodes of lithium-ion batteries mends lithium device as claimed in claim 1, it is characterized in that: described is the round roller that surface is surrounded by lithium metal for lithium device (4); The outer circumference surface that described surface is surrounded by the round roller of lithium metal contacts with described pole piece immersion part holding surface in described pole piece (3) transport process.
6. electrodes of lithium-ion batteries mends lithium device as claimed in claim 5, it is characterized in that: the width of described pole piece (3) is less than the width that described surface is surrounded by the round roller of lithium metal.
7. electrodes of lithium-ion batteries mends lithium device as claimed in claim 1, it is characterized in that: described pole piece (3) is silicon-based anode pole piece, silicon-carbon cathode pole piece or tin base cathode pole piece.
8. electrodes of lithium-ion batteries mends lithium device, comprises pole piece wrap-up (2), unreeling device for pole piece (1), waits mend the pole piece (3) of lithium and hold the electrolytic bath (6) of electrolyte (5); It is characterized in that: also comprise and be arranged at interior confession lithium device (4) infiltrated by described electrolyte (5) of described electrolytic bath (6); Described lithium device (4) outer surface that supplies is coated with porous septum; The described pole piece immersing described electrolyte (5) for lithium device (4) and described pole piece (3) being coated with porous septum immerses and partly keeps in touch in described pole piece (3) transport process, described electrolytic bath (6) is connected with power supply, described lithium device (4) that supplies is connected with positive source, and described pole piece (3) is connected with power cathode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520748174.6U CN204966620U (en) | 2015-09-25 | 2015-09-25 | Lithium supplementing device of lithium ion battery pole piece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520748174.6U CN204966620U (en) | 2015-09-25 | 2015-09-25 | Lithium supplementing device of lithium ion battery pole piece |
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| CN204966620U true CN204966620U (en) | 2016-01-13 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108520978A (en) * | 2017-03-13 | 2018-09-11 | 万向二三股份公司 | A kind of lithium ion battery benefit lithium technique |
| CN110212152A (en) * | 2019-05-28 | 2019-09-06 | 合肥国轩高科动力能源有限公司 | A kind of roll-to-roll prelithiation method and device of electrodes of lithium-ion batteries |
| CN110335992A (en) * | 2019-07-11 | 2019-10-15 | 安普瑞斯（无锡）有限公司 | A kind of electrodes of lithium-ion batteries prelithiation device |
| CN110459731A (en) * | 2019-08-17 | 2019-11-15 | 珠海冠宇电池有限公司 | A kind of lithium ion battery negative electrode mends lithium device and mends lithium method |
| CN111162246A (en) * | 2018-11-08 | 2020-05-15 | 中国科学院化学研究所 | Continuous controllable effective pre-lithiation system and lithium supplementing method |
| WO2020108503A1 (en) | 2018-11-27 | 2020-06-04 | 北京卫蓝新能源科技有限公司 | System for preparing electrode having high cycle efficiency, method for preparing electrode having high cycle efficiency, and application thereof |
| CN114335431A (en) * | 2021-12-15 | 2022-04-12 | 桑顿新能源科技有限公司 | Device and method for supplementing lithium/sodium to negative electrode of power battery |
| CN114709373A (en) * | 2022-04-25 | 2022-07-05 | 远景动力技术(江苏)有限公司 | Method and system for preparing SEI film of battery pole piece and supplementing lithium |
| CN114974939A (en) * | 2022-06-29 | 2022-08-30 | 中国科学院电工研究所 | Negative plate prelithiation system |
| CN114975978A (en) * | 2022-06-24 | 2022-08-30 | 中山烯利来设备科技有限公司 | Method and device for supplementing lithium to outside of silicon material |
| CN115732642A (en) * | 2021-08-31 | 2023-03-03 | 宁德时代新能源科技股份有限公司 | Lithium scrap inerting treatment device and treatment method, and battery lithium supplementing system |
| CN114709373B (en) * | 2022-04-25 | 2024-06-04 | 远景动力技术(江苏)有限公司 | SEI film preparation and lithium supplementing method and system for battery pole piece |
-
2015
- 2015-09-25 CN CN201520748174.6U patent/CN204966620U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108520978A (en) * | 2017-03-13 | 2018-09-11 | 万向二三股份公司 | A kind of lithium ion battery benefit lithium technique |
| CN108520978B (en) * | 2017-03-13 | 2020-07-31 | 万向一二三股份公司 | Lithium ion battery lithium supplementing process |
| CN111162246B (en) * | 2018-11-08 | 2021-01-26 | 中国科学院化学研究所 | Continuous controllable pre-lithiation system and lithium supplementing method |
| CN111162246A (en) * | 2018-11-08 | 2020-05-15 | 中国科学院化学研究所 | Continuous controllable effective pre-lithiation system and lithium supplementing method |
| WO2020108503A1 (en) | 2018-11-27 | 2020-06-04 | 北京卫蓝新能源科技有限公司 | System for preparing electrode having high cycle efficiency, method for preparing electrode having high cycle efficiency, and application thereof |
| CN110212152A (en) * | 2019-05-28 | 2019-09-06 | 合肥国轩高科动力能源有限公司 | A kind of roll-to-roll prelithiation method and device of electrodes of lithium-ion batteries |
| CN110335992A (en) * | 2019-07-11 | 2019-10-15 | 安普瑞斯（无锡）有限公司 | A kind of electrodes of lithium-ion batteries prelithiation device |
| CN110459731A (en) * | 2019-08-17 | 2019-11-15 | 珠海冠宇电池有限公司 | A kind of lithium ion battery negative electrode mends lithium device and mends lithium method |
| CN115732642A (en) * | 2021-08-31 | 2023-03-03 | 宁德时代新能源科技股份有限公司 | Lithium scrap inerting treatment device and treatment method, and battery lithium supplementing system |
| CN114335431A (en) * | 2021-12-15 | 2022-04-12 | 桑顿新能源科技有限公司 | Device and method for supplementing lithium/sodium to negative electrode of power battery |
| CN114709373A (en) * | 2022-04-25 | 2022-07-05 | 远景动力技术(江苏)有限公司 | Method and system for preparing SEI film of battery pole piece and supplementing lithium |
| CN114709373B (en) * | 2022-04-25 | 2024-06-04 | 远景动力技术(江苏)有限公司 | SEI film preparation and lithium supplementing method and system for battery pole piece |
| CN114975978A (en) * | 2022-06-24 | 2022-08-30 | 中山烯利来设备科技有限公司 | Method and device for supplementing lithium to outside of silicon material |
| CN114974939A (en) * | 2022-06-29 | 2022-08-30 | 中国科学院电工研究所 | Negative plate prelithiation system |
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