CN109728365A - A kind of lithium ion battery and its mend lithium method - Google Patents
A kind of lithium ion battery and its mend lithium method Download PDFInfo
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- CN109728365A CN109728365A CN201811626721.8A CN201811626721A CN109728365A CN 109728365 A CN109728365 A CN 109728365A CN 201811626721 A CN201811626721 A CN 201811626721A CN 109728365 A CN109728365 A CN 109728365A
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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 present invention discloses a kind of lithium ion battery and its mends lithium method, comprising: positive plate and negative electrode tab and at least one lithium source, lithium source and positive plate, negative electrode tab are mutually isolated；Shell, shell is for accommodating positive plate, negative electrode tab, lithium source；Wherein, shell is electric conductor, and electrolyte is filled in shell；Lithium source is connected to the inner wall of shell, and when shell is also turned on external power supply with positive plate or negative electrode tab, lithium source puts lithium ion toward electrolysis liquation.The lithium source of the lithium ion battery is fixed on the inner wall of shell, and it is contactless with positive plate, negative electrode tab, safety is higher, effectively avoiding due to lithium source and pole piece directly contact bring from mending, lithium effect is poor, reaction speed uncontrollable problem fastly, and this lithium ion battery structure is simple, may be directly applied on existing lithium ion battery；Furthermore during mending lithium, the electric current of external power supply is adjusted correspondingly, i.e., the magnitude of recruitment of controllable lithium ion improves controllability, accuracy and the efficiency for mending lithium operation.
Description
Technical field
This application involves the technical field of power battery more particularly to a kind of lithium ion battery and its mend lithium method.
Background technique
Power-type lithium ion battery is a kind of new high-energy battery more common at present, because its energy is high, cell voltage is high,
The advantages that operating temperature range is wide, storage life is long, it has also become the major impetus power supply of electric car.Conventional lithium ion battery
Graphite cathode is mainly used, the theoretical capacity of graphite cathode is 372mAh/g, but by the development of many years, the graphite of domestic production
The capacity of cathode has been developed that horizontal close to theoretical value.In order to realize higher energy density and power density, people start
Pay close attention to novel anode material, such as non-graphitized carbon material, silicium cathode, silicon-carbon composite cathode, the sub- silicium cathode of oxidation and oxidation
Sub- silicon silicon-carbon composite cathode etc..However, these materials serious problems such as that there are irreversible capacities is high, coulombic efficiency is low for the first time, make
Obtaining lithium ion content in electrolyte reduces, and then capacity of lithium ion battery is caused to be decreased obviously.Currently, electrochemistry benefit lithiumation method is
A method of coulombic efficiency is low for the first time for most direct solution lithium ion battery negative material.
Existing electrochemistry is mended in lithium technology, and lithium metal item, lithium band, lithium powder are mainly fitted to anode surface, make metal
Lithium is directly contacted with electrode material, to carry out benefit lithium.However, the processing conditions of the mode of lithium metal item, lithium band fitting is higher,
The equipment for needing matching mechanism complexity, the problem of being easy to cause high production cost, and dusting is then usually used in the fitting of lithium powder
Mode is difficult to ensure whether lithium powder can be uniformly in contact with electrode be arrived, so that it is undesirable to mend lithium effect；Furthermore due to lithium right and wrong
Often active metal, after electrolyte is added in lithium metal by way of above-mentioned fitting, quickly, embedding lithium speed can not for reaction speed
Control, the SEI film resulted in is unstable, and negative electrode material is be easy to cause to rupture, and benefit lithium effect is poor, moreover, remaining in electrode table
Some lithium metal particles in face be easy to cause the security risk of lithium battery there is also the risk for piercing through isolation film.
Therefore, how to mend lithium to lithium battery for above situation to improve, it has also become those skilled in the art's is important
Research topic.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the deficiencies of the prior art, a kind of lithium ion battery and one are provided
The benefit lithium method of lithium ion battery is planted, is mended with solving existing lithium ion battery because lithium metal is directly attached to electrode by use
Lithium, and battery cumbersome, at high cost so as to cause battery production technology complexity benefit lithium effect is undesirable, safety easy to form is hidden
The technical problems such as trouble.
To achieve the above object, the present invention provides technical solution below:
A kind of lithium ion battery, comprising:
Positive plate and negative electrode tab and at least one lithium source, the lithium source and the positive plate, negative electrode tab are mutually isolated；
Shell, the shell is for accommodating the positive plate, negative electrode tab, lithium source；
Wherein, the shell is electric conductor, and electrolyte is filled in the shell；
The lithium source is connected to the inner wall of the shell, when the shell and the positive plate or the negative electrode tab connect simultaneously
When logical external power supply, the lithium source puts lithium ion toward the electrolysis liquation.
Optionally, the lithium ion battery further include:
Positive terminal, the positive terminal are connected to the positive plate and extend to outside the shell；
Negative terminal, the negative terminal are connected to the negative electrode tab and extend to outside the shell；
Two collets, two collets are respectively sleeved on the positive terminal and negative terminal；
Wherein, the positive terminal and negative terminal pass through two collets respectively and are isolated with the shell.
Optionally, the material of the lithium source is that pure lithium metal, Li-Si alloy, lithium-aluminium alloy, lithium boron alloy and lithium magnesium close
One of gold is a variety of.
Optionally, the lithium source is connected to the inner wall of the shell by way of welding or being electroplated.
Optionally, the shell is opened up there are two the confession positive terminal and the outwardly extending installation through-hole of negative terminal, described
It is equipped with sealing ring in installation through-hole, the positive terminal and negative terminal are seal-installed on the installation through-hole by the sealing ring
It is interior.
Optionally, the lithium ion battery further include:
At least one diaphragm, the diaphragm between the positive plate, negative electrode tab and lithium source, bear by the positive plate
Pole piece, lithium source three are isolated by the diaphragm.
Optionally, the lithium ion battery includes liquid lithium ionic cell, solid lithium ion battery or colloidal sol lithium-ion electric
Pond.
Optionally, at least one described lithium source is uniformly distributed on the inner wall of the shell, and the shape of the lithium source is
Band-like, strip, ring-type or it is dotted in it is any；The lithium source with a thickness of 1~250 μm.
Optionally, the diaphragm with a thickness of 5-30 μm；The substrate of the diaphragm be polypropylene, polyethylene, ethylene oxide,
Polypropylene oxide, Kynoar, Kynoar-hexafluoropropene, polymethyl methacrylate, polyacrylonitrile, polyimides,
Polyetherimide, poly- aramid fiber, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), is gathered polycarbonate
One of acrylonitrile, polycarbonate, polysulfide acid esters and cellulose are a variety of.
Correspondingly, the present invention also provides a kind of benefit lithium method of lithium ion battery, suitable for above-mentioned lithium ion battery,
The benefit lithium method includes:
The shell of lithium ion battery is connected to the cathode of external power supply；The positive plate of lithium ion battery or negative electrode tab are connected
It is connected to the anode of external power supply；The electrolysis liquation of lithium source toward lithium ion battery puts lithium ion, and lithium ion is embedded in positive plate and cathode
Piece is completed to mend lithium.
Compared with prior art, the invention has the following advantages:
The present invention provides a kind of lithium ion battery and its lithium method is mended, the shell of the lithium ion battery is electrically conductive, with
Lithium source directly contacts, and regard shell and lithium source as third electrode simultaneously, when shell and positive plate or negative electrode tab be also turned on it is external
When power supply, lithium source passes through exoelectrical reaction under the action of external power supply, and lithium is precipitated while losing electronics in the lithium metal in lithium source
Ion, and lithium ion is migrated to positive plate or negative electrode tab by electrolyte and forms lithium compound.Wherein, lithium source is fixed on shell
Inner wall, and contactless with positive plate, negative electrode tab, operator is without directly operating lithium source, and safety is higher, effectively
Avoiding due to lithium source and pole piece directly contact bring from mending, lithium effect is poor, reaction speed uncontrollable problem fastly, and of the invention
The lithium ion battery structure of offer is simple, without changing existing battery manufacture process, may be directly applied to existing liquid lithium
On ion battery, solid lithium ion battery, liquid metal lithium battery, solid metallic lithium ion battery or colloidal sol lithium ion battery；
Furthermore this lithium ion battery adjusts electric current, the voltage of external power supply during connecting external power supply benefit lithium accordingly
Whole, i.e., the magnitude of recruitment of controllable lithium ion effectively improves controllability, accuracy and the efficiency for mending lithium operation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of lithium ion battery provided by the invention；
Fig. 2 is the benefit lithium schematic diagram of lithium ion battery of the invention；
Fig. 3 is the structural schematic diagram of another lithium ion battery；
Fig. 4 is the flow graph of a kind of benefit lithium method of lithium ion battery.
It illustrates:
10, positive plate；11, positive terminal；20, negative electrode tab；21, negative terminal；30, lithium source；40, shell；50, diaphragm；60, absolutely
Edge block；70, sealing ring.
Specific embodiment
To enable the purpose of the present invention, feature, advantage more obvious and understandable, implement below in conjunction with the present invention
Attached drawing in example, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that reality disclosed below
Applying example is only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that, when a component is considered as " connection " another component, it can
To be directly to another component or may be simultaneously present the component being centrally located.When a component is considered as " setting
Set " another component, it, which can be, is set up directly on another component or may be simultaneously present the component being centrally located.
In addition, the indicating positions such as term " length " " short " "inner" "outside" or positional relationship for the orientation that is shown based on attached drawing or
Person's positional relationship is merely for convenience of the description present invention, rather than the device or original part of indication or suggestion meaning must have this
Specific orientation is operated with specific orientation construction, should not be understood as limitation of the invention with this.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
Embodiment one
Referring to Fig. 1, this is illustrated as a kind of structural schematic diagram of lithium ion battery, a kind of lithium ion is present embodiments provided
Battery, comprising:
Positive plate 10 and negative electrode tab 20 and at least one lithium source 30, the lithium source 30 and the positive plate 10, negative electrode tab
20 is mutually isolated；Wherein, the material of lithium source 30 is that pure lithium metal, Li-Si alloy, lithium-aluminium alloy, lithium boron alloy and lithium magnesium close
One of gold is a variety of；
Shell 40, the shell 40 is for accommodating the positive plate 10, negative electrode tab 20, lithium source 30；
Wherein, the shell 40 is electric conductor, can be made by aluminium alloy, and electrolyte is filled in the shell 40；
The lithium source 30 is connected to the inner wall of the shell 40, specifically, side of the lithium source 30 by welding or plating
Formula is connected to the inner wall of the shell 40；When the shell 40 be also turned on the positive plate 10 or the negative electrode tab 20 it is external
When power supply, the lithium source 30 puts lithium ion toward the electrolysis liquation, to achieve the purpose that mend lithium.
As shown in Fig. 2, this is illustrated as the benefit lithium schematic diagram of lithium ion battery of the invention, in the specific implementation process,
Shell 40 is electrically conductive, directly contacts with lithium source 30, shell 40 and lithium source 30 is regard as third electrode simultaneously, when shell 40 and just
When pole piece 10 or negative electrode tab 20 are also turned on external power supply, lithium source 30 passes through exoelectrical reaction, lithium source under the action of external power supply
Lithium ion is precipitated in lithium metal in 30 while losing electronics, and lithium ion is migrated by electrolyte to positive plate 10 or cathode
Piece 20 forms lithium compound.Wherein, lithium source 30 is fixed on the inner wall of shell 40, and contactless with positive plate 10, negative electrode tab 20, behaviour
Make personnel without directly operating to lithium source 30, safety is higher, effectively avoids directly contacting due to band because of lithium source 30 and pole piece
Come benefit lithium effect is poor, reaction speed uncontrollable problem fastly, and lithium ion battery structure provided by the invention is simple, is not necessarily to
Existing battery manufacture process is changed, may be directly applied to existing liquid lithium ionic cell, solid lithium ion battery or colloidal sol
On lithium ion battery；Furthermore this lithium ion battery is during connecting external power supply benefit lithium, electric current, electricity to external power supply
Pressure is adjusted correspondingly, i.e., the magnitude of recruitment of controllable lithium ion, effectively improve the controllability for mending lithium operation, accuracy with
And efficiency.
It should be noted that the present embodiment is not intended to be limited to this, as shown in Figure 1, this lithium ion battery further include:
Positive terminal 11, the positive terminal 11 are connected to the positive plate 10 and extend to outside the shell 40；
Negative terminal 21, the negative terminal 21 are connected to the negative electrode tab 20 and extend to outside the shell 40；
At least one diaphragm 50, the diaphragm 50 are described between the positive plate 10, negative electrode tab 20 and lithium source 30
Positive plate 10, negative electrode tab 20,30 three of lithium source are isolated by the diaphragm 50；
Two collets 60, two collets 60 are respectively sleeved on the positive terminal 11 and negative terminal 21；
Wherein, the positive terminal 11 and negative terminal 21 respectively by two collets 60 and the shell 40 carry out every
From.Specifically, the collets 60 in the present embodiment are made of ceramic, with stable structure, the advantages of good insulation preformance.
Further, the shell 40 opens up that there are two logical for the outwardly extending installation of the positive terminal 11 and negative terminal 21
Hole is equipped with sealing ring 70, the positive terminal 11 and negative terminal 21 in the installation through-hole and passes through the sealing ring 70 sealing peace
Dress is in the mounting through hole.
Pole is connected with pole piece, and pole is separated by collets 60 with shell 40, and short circuit is prevented；
Compared with prior art, the variation of this lithium ion battery structure is less, increases only lithium source 30.By suitably in shell
Lithium source 30 is arranged in the inner wall of body 40, and lithium ion battery of the present invention can be with completely compatible existing electronic equipment.And by suitably
Charging equipment is improved, such as the circuit connecting with shell 40, pole piece is provided, benefit lithium can be easy to carry out, to improve lithium ion
The performance of battery.The process of manufacture lithium ion battery needs only assure that lithium source 30 does not react with environment, this is by making environment
For dew point below -40 degree, other aspects are identical as preparing for existing lithium ion battery.Therefore, system can be substantially reduced in this way
Cause this.
Embodiment two
Referring to Fig. 3, this is illustrated as the structural schematic diagram of another lithium ion battery, further, described at least one
Lithium source 30 is uniformly distributed on the inner wall of the shell 40, and the shape of the lithium source 30 be band-like, strip, ring-type or it is dotted in
It is any；The lithium source 30 with a thickness of 1~250 μm.
Further, the diaphragm 50 with a thickness of 5-30 μm；The substrate of the diaphragm 50 is polypropylene, polyethylene, ring
Oxidative ethane, Kynoar, Kynoar-hexafluoropropene, polymethyl methacrylate, polyacrylonitrile, gathers at polypropylene oxide
Acid imide, polyetherimide, polycarbonate, poly- aramid fiber, polyethylene terephthalate PET, polybutylene terephthalate
One of PBT, polyacrylonitrile, polycarbonate, polysulfide acid esters and cellulose are a variety of.
As shown in Fig. 2, shell 40 is electrically conductive, directly contacted with lithium source 30, by shell 40 and lithium source 30 simultaneously as the
Three electrodes, when shell 40 and positive plate 10 or negative electrode tab 20 are also turned on external power supply, effect of the lithium source 30 in external power supply
Pass through exoelectrical reaction down, lithium ion is precipitated while losing electronics in the lithium metal in lithium source 30, and lithium ion passes through electrolyte
It migrates to positive plate 10 or negative electrode tab 20 and forms lithium compound.Wherein, lithium source 30 is fixed on the inner wall of shell 40, and and positive plate
10, negative electrode tab 20 is contactless, and for operator without directly operating to lithium source 30, safety is higher, effectively avoids because of lithium source
30 directly contact and bring mends that lithium effect is poor, reaction speed uncontrollable problem, and lithium provided by the invention fastly with pole piece
Ion battery configuration is simple, without changing existing battery manufacture process, may be directly applied to existing liquid lithium ionic cell,
On solid lithium ion battery, liquid metal lithium battery, solid metallic lithium ion battery or colloidal sol lithium ion battery；Furthermore this lithium
Controllably ion battery is adjusted correspondingly electric current, the voltage of external power supply, i.e., during connecting external power supply benefit lithium
The magnitude of recruitment of preparing lithium ion effectively improves controllability, accuracy and the efficiency for mending lithium operation.
Embodiment three
Correspondingly, the present invention also provides a kind of benefit lithium method of lithium ion battery, suitable for above-mentioned lithium ion battery,
Referring to Fig. 4, the flow graph of a kind of benefit lithium method for being illustrated as lithium ion battery, the benefit lithium method include:
S1: the shell of lithium ion battery is connected to the cathode of external power supply；
S2: the positive plate of lithium ion battery or negative electrode tab are connected to the anode of external power supply；
S3: the electrolysis liquation of lithium source toward lithium ion battery puts lithium ion, and lithium ion is embedded in positive plate and negative electrode tab, completes to mend
Lithium.
Wherein, step S1 and S2 can be performed simultaneously, and the voltage and current adjustment of external power supply, and shell is electrically conductive,
It is directly contacted with lithium source, shell and lithium source is regard as third electrode simultaneously, when shell and positive plate or negative electrode tab are also turned on
When external power supply, lithium source passes through exoelectrical reaction, the analysis while lithium metal in lithium source loses electronics under the action of external power supply
Lithium ion out, and lithium ion is migrated to positive plate or negative electrode tab by electrolyte and forms lithium compound.Wherein, lithium source is fixed on
The inner wall of shell, and it is contactless with positive plate, negative electrode tab, for operator without directly operating to lithium source, safety is higher,
Effectively avoiding due to lithium source and pole piece directly contact bring from mending, lithium effect is poor, reaction speed uncontrollable problem fastly, Er Qieben
It is simple to invent the lithium ion battery structure provided, without changing existing battery manufacture process, may be directly applied to existing liquid
State lithium ion battery, solid lithium ion battery, liquid metal lithium battery, solid metallic lithium ion battery or colloidal sol lithium-ion electric
Chi Shang；Furthermore this lithium ion battery carries out phase during connecting external power supply benefit lithium, to electric current, the voltage of external power supply
The adjustment answered, i.e., the magnitude of recruitment of controllable lithium ion, effectively improves controllability, accuracy and the efficiency for mending lithium operation.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of lithium ion battery characterized by comprising
Positive plate (10) and negative electrode tab (20) and at least one lithium source (30), the lithium source (30) and the positive plate (10),
Negative electrode tab (20) is mutually isolated；
Shell (40), the shell (40) is for accommodating the positive plate (10), negative electrode tab (20), lithium source (30)；
Wherein, the shell (40) is electric conductor, and electrolyte is filled in the shell (40)；
The lithium source (30) is connected to the inner wall of the shell (40), when the shell (40) and the positive plate (10) or described
When negative electrode tab (20) is also turned on external power supply, the lithium source (30) puts lithium ion toward the electrolysis liquation.
2. lithium ion battery according to claim 1, which is characterized in that the lithium ion battery further include:
Positive terminal (11), the positive terminal (11) are connected to the positive plate (10) and extend to the shell (40) outside；
Negative terminal (21), the negative terminal (21) are connected to the negative electrode tab (20) and extend to the shell (40) outside；
Two collets (60), two collets (60) are respectively sleeved on the positive terminal (11) and negative terminal (21)；
Wherein, the positive terminal (11) and negative terminal (21) are carried out by two collets (60) and the shell (40) respectively
Isolation.
3. lithium ion battery according to claim 1, which is characterized in that the material of the lithium source (30) be pure lithium metal,
One of Li-Si alloy, lithium-aluminium alloy, lithium boron alloy and lithium magnesium alloy are a variety of.
4. lithium ion battery according to claim 1, which is characterized in that the side that the lithium source (30) passes through welding or plating
Formula is connected to the inner wall of the shell (40).
5. lithium ion battery according to claim 2, which is characterized in that the shell (40) open up there are two for it is described just
Pole (11) and negative terminal (21) outwardly extending installation through-hole are equipped with sealing ring (70) in the installation through-hole, it is described just
Pole (11) and negative terminal (21) are seal-installed in the installation through-hole by the sealing ring (70).
6. lithium ion battery according to claim 1, which is characterized in that the lithium ion battery further include:
At least one diaphragm (50), the diaphragm (50) be located at the positive plate (10), negative electrode tab (20) and lithium source (30) it
Between, the positive plate (10), negative electrode tab (20), lithium source (30) three are isolated by the diaphragm (50).
7. lithium ion battery according to claim 1, which is characterized in that the lithium ion battery includes liquid lithium ion electricity
Pond, solid lithium ion battery or colloidal sol lithium ion battery.
8. lithium ion battery according to claim 1, which is characterized in that at least one described lithium source (30) it is uniformly distributed in
On the inner wall of the shell (40), and the shape of the lithium source (30) be band-like, strip, ring-type or it is dotted in it is any；It is described
Lithium source (30) with a thickness of 1~250 μm.
9. lithium ion battery according to claim 6, which is characterized in that the diaphragm (50) with a thickness of 5-30 μm；Institute
The substrate for stating diaphragm (50) is polypropylene, polyethylene, ethylene oxide, polypropylene oxide, Kynoar, Kynoar-six
Fluoropropene, polyacrylonitrile, polyimides, polyetherimide, polycarbonate, poly- aramid fiber, is gathered to benzene two polymethyl methacrylate
One of formic acid second diester, polybutylene terephthalate, polyacrylonitrile, polycarbonate, polysulfide acid esters and cellulose are more
Kind.
10. a kind of benefit lithium method of lithium ion battery is suitable for lithium-ion electric as in one of claimed in any of claims 1 to 9
Pond, which is characterized in that the benefit lithium method includes:
The shell of lithium ion battery is connected to the cathode of external power supply；The positive plate of lithium ion battery or negative electrode tab are connected to
The anode of external power supply；The electrolysis liquation of lithium source toward lithium ion battery puts lithium ion, and lithium ion is embedded in positive plate and negative electrode tab, complete
At benefit lithium.
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| WO2023178790A1 (en) * | 2022-03-24 | 2023-09-28 | 天津中能锂业有限公司 | Battery pre-lithiation process |
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| CN114243131A (en) * | 2021-12-23 | 2022-03-25 | 湖北亿纬动力有限公司 | Lithium supplementing method and lithium ion battery thereof |
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