CN208478498U - A kind of LiFePO4 materiel machining mechanism and lithium ion battery production system - Google Patents
A kind of LiFePO4 materiel machining mechanism and lithium ion battery production system Download PDFInfo
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- CN208478498U CN208478498U CN201821259972.2U CN201821259972U CN208478498U CN 208478498 U CN208478498 U CN 208478498U CN 201821259972 U CN201821259972 U CN 201821259972U CN 208478498 U CN208478498 U CN 208478498U
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- support frame
- lifepo4
- roller mill
- loading hopper
- mill support
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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 provides a kind of LiFePO4 materiel machining mechanism and lithium ion battery production system, belongs to battery technology field.It includes roller mill support frame, transfer assembly, driving assembly, rolling component, positioning plate, material scraping plate, loading hopper and discharge bucket；Loading hopper and discharge bucket are separately mounted on roller mill support frame, and transfer assembly is mounted on roller mill support frame, and driving assembly and transfer assembly transmission connect；Rolling component is mounted on roller mill support frame, and has gap between the upper and lower surface of transfer assembly, and rolling component is used for the material being compacted in gap；Positioning plate is mounted on roller mill support frame at the position of loading hopper, and positioning plate is used to the material being added by loading hopper navigating to transfer assembly；Material scraping plate is mounted on roller mill support frame at the position of rolling component.The lithium ion battery production system has above-mentioned LiFePO4 materiel machining mechanism, has the characteristics that structure is simple and easy to use.
Description
Technical field
The utility model relates to battery technology field more particularly to a kind of LiFePO4 materiel machining mechanism and lithium-ion electrics
Pond production system.
Background technique
Currently, especially in the process of lithium iron phosphate positive material, kiln useful load is in lithium ion battery material
A problem, good sintering effect and biggish useful load, the method generally used at present, are by LiFePO4 powder in order to obtain
Material is inserted in special mold, then is compacted with tablet press machine.
Itself the problem is that, production efficiency is lower, and mold is smaller, and once the LiFePO 4 material that can be compacted is less,
And cannot operate continuously, working efficiency is lower；Or vibrator is used, dress alms bowl amount is improved by amplitude effect, but this is filled
It is also unobvious to set effect.
Utility model content
One of the purpose of this utility model is to provide a kind of LiFePO4 materiel machining mechanism, this LiFePO4 material adds
Work mechanism aims to solve the problem that the problem that lithium ion battery material production efficiency is lower in the prior art；
The another object of the utility model is to provide a kind of lithium ion battery production system, this lithium ion battery production system
System aims to solve the problem that the problem that lithium ion battery material production efficiency is lower in the prior art.
To achieve the above object, the technical solution of the utility model is:
A kind of LiFePO4 materiel machining mechanism, LiFePO4 materiel machining mechanism include roller mill support frame, pass
Sending component, driving assembly, rolling component, positioning plate, material scraping plate, loading hopper and discharge bucket；
The loading hopper and the discharge bucket are separately mounted on the roller mill support frame, and the transfer assembly is mounted on
On the roller mill support frame, the driving component and transfer assembly transmission are connected, and the transfer assembly is used for will be by institute
The material transmission entered in loading hopper is stated into the discharge bucket；
The rolling component is mounted on the roller mill support frame, and has between the upper and lower surface of the transfer assembly
There is gap, the rolling component is used for the material being compacted in the gap；
The positioning plate is mounted on the roller mill support frame at the position of the loading hopper, the positioning plate
For the material being added by the loading hopper to be navigated to the transfer assembly；
The material scraping plate is mounted on the roller mill support frame at the position of the rolling component.
As a kind of optimal technical scheme of the utility model, the transfer assembly includes conveyer belt, and the conveyer belt can
It is movably mounted on the roller mill support frame, the length of the length extending direction of the conveyer belt and the roller mill support frame
It is identical to spend extending direction.
As a kind of optimal technical scheme of the utility model, the driving component includes multiple live-rollers and motor, more
A live-roller is circumferentially mounted on the conveyer belt, and the motor and the live-roller are sequentially connected, and the motor passes through
The live-roller rotation is driven to drive the conveyer belt rotation.
As a kind of optimal technical scheme of the utility model, the rolling component includes upper rolling axis and lower rolling axis；
The upper rolling axis is mounted on the roller mill support frame, and in the conveyer belt close to the upper surface of the discharge bucket
Place has the gap between the upper rolling axis and the upper surface of the conveyer belt；The lower rolling axis is mounted on the roller
On milling train support frame, and in the conveyer belt at the lower surface of the discharge bucket, the lower rolling axis and the transmission
There is the gap between the lower surface of band.
As a kind of optimal technical scheme of the utility model, spacing is identical between multiple live-rollers.
As a kind of optimal technical scheme of the utility model, star-like baiting valve, the star are provided on the loading hopper
Type baiting valve is used to open or closes the loading hopper.
As a kind of optimal technical scheme of the utility model, the hexagonal structure in the section of the loading hopper is described to add
One end of hopper offers feeding inlet, and the other end offers drain hole, and the star-like baiting valve is mounted at the feeding inlet, institute
Drain hole is stated to be set on the transfer assembly.
As a kind of optimal technical scheme of the utility model, the section of the discharge bucket is in inverted ladder shape, the discharging
Discharge port is offered on bucket, the discharge outlet is at the one end of the transfer assembly far from the loading hopper.
As a kind of optimal technical scheme of the utility model, the loading hopper and the discharge bucket are respectively at the roller
On the two sides of milling train support frame.
A kind of lithium ion battery production system, the lithium ion battery production system include above-described LiFePO4 object
Expect organisation of working.
The beneficial effects of the utility model are:
The utility model provides a kind of LiFePO4 materiel machining mechanism by above-mentioned design, the LiFePO4 materiel machining
Mechanism has roller mill support frame, transfer assembly, driving assembly, rolling component, positioning plate, material scraping plate, loading hopper and goes out
Hopper；Wherein, increase the roller mill support frame in the automatic weighing device front end of kiln dress alms bowl station, open star-like blanking
Valve and motor, material enters in loading hopper from feeding inlet at this time, and then is entered on conveyer belt by drain hole, and motor drives
Live-roller rotation, and then drive conveyer belt that material is driven to advance towards the direction of rolling component, when by (the band frequency conversion of upper rolling axis
Motor) and when lower rolling axis (band variable-frequency motor), upper rolling axis (band variable-frequency motor) and lower rolling axis (with variable-frequency motor) are to it
It is closely compacted, so that the tightness degree between material increases, and then is entered in quantitative pot and claimed by discharge bucket
Weight (setting weight).Wherein, the material storage tank outlet of loading hopper star-shaped discharge valve controls charging rate, and material passes through rolling group
After the compacting of part, after entering quantitative pot weighing (setting weight), it is reloaded into the saggar waited in feed opening.Also, by fixed
The setting of position plate, certain barrier effect is played to material, enables to the material come out from drain hole will not be to surrounding
The phenomenon that generation is overflowed；In addition, material scraping plate can be further when at the position that material runs to upper rolling axis and lower rolling axis
Ground scrapes the material being attached on upper rolling axis and lower rolling axis, enables material all close to the maximum extent
Compacting.Increase its dress in fact after carrying out rolling to material by upper rolling axis (band variable-frequency motor) and lower rolling axis (band variable-frequency motor)
Density increases kiln furnace output to improve dress alms bowl amount, plays the role of saving production cost.In addition, the present apparatus is to transmission
The material type selecting of band, upper rolling axis (with variable-frequency motor) and lower rolling axis (with variable-frequency motor) is critically important, and conveyer belt material is
316 stainless steel plates, upper rolling axis and lower rolling axis are zirconia ceramics part, this kind of structure not only increases furnace output, also mention
High production efficiency.
The utility model provides a kind of lithium ion battery production system by above-mentioned design, the lithium ion battery production system
Due to the LiFePO4 materiel machining mechanism more than having, it is simple with structure and can be improved LiFePO4 material
The characteristics of efficiency of processing.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the structural schematic diagram of LiFePO4 materiel machining provided by the embodiment of the utility model mechanism；
Fig. 2 is the structural schematic diagram of roller mill support frame provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of loading hopper provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of transfer assembly provided by the embodiment of the utility model.
Icon: 1- LiFePO4 materiel machining mechanism；2- roller mill support frame；3- transfer assembly；4- driving assembly；5- roller
Roll component；6- positions plate；7- material scraping plate；8- loading hopper；9- discharge bucket；10- conveyer belt；11- live-roller；The upper rolling axis of 12-；
Rolling axis under 13-；The gap 14-；The star-like baiting valve of 15-.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "lower"
For be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation or position usually put
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, in the present invention unless specifically defined or limited otherwise, fisrt feature on second feature or
Under may include that the first and second features directly contact, may include the first and second features be not direct contact but logical yet
Cross the other characterisation contact between them.Moreover, fisrt feature is on second feature, top and above include fisrt feature
Right above second feature and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is
Under two features, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of fisrt feature
Level height is less than second feature.
In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly
Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It is complete horizontal, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment:
The present embodiment provides a kind of lithium ion battery production systems comprising LiFePO4 materiel machining mechanism 1, the phosphoric acid
Tie Li materiel machining mechanism 1 is mainly used for being compacted lithium iron phosphate positive material, so that kiln obtains good sintering
Effect and biggish useful load, specific structure are as hereinbefore set forth.
Fig. 1 is please referred to, referring to Fig. 2, LiFePO4 materiel machining mechanism 1 includes roller mill support frame 2, transfer assembly for cooperation
3, driving assembly 4, rolling component 5, positioning plate 6, material scraping plate 7, loading hopper 8 and discharge bucket 9；Loading hopper 8 and discharge bucket 9 divide
It is not mounted on roller mill support frame 2, transfer assembly 3 is mounted on roller mill support frame 2, driving assembly 4 and transfer assembly 3
Transmission connection, transfer assembly 3 be used for by by the material transmission that enters in loading hopper 8 into discharge bucket 9；Rolling component 5 is mounted on
On roller mill support frame 2, and there is gap 14 between the upper and lower surface of transfer assembly 3, rolling component 5 is for being compacted between being in
Material in gap 14；Positioning plate 6 is mounted on roller mill support frame 2 at the position of loading hopper 8, and positioning plate 6 is used for will
It is navigated on transfer assembly 3 by the material that loading hopper 8 is added；Material scraping plate 7 is mounted on roller mill support frame 2 close to rolling component 5
Position at.
Referring to figure 3., referring to Fig.1, transfer assembly 3 includes conveyer belt 10 for cooperation, and conveyer belt 10 is movably installed at roller
On milling train support frame 2, the length extending direction of conveyer belt and the length extending direction of roller mill support frame 2 are identical.
It should be noted that in the present embodiment, driving assembly 4 includes multiple live-rollers 11 and motor, multiple live-rollers
11 are circumferentially mounted on conveyer belt 10, and motor and live-roller 11 are sequentially connected, and motor is driven by the driving rotation of live-roller 11 and passed
Band 10 is sent to rotate.
It should be noted that in the present embodiment, rolling component 5 includes upper rolling axis 12 and lower rolling axis 13；Upper rolling
Axis 12 is mounted on roller mill support frame 2, and in conveyer belt 10 at the upper surface of discharge bucket 9, upper rolling axis 12 and biography
Sending has gap 14 between the upper surface of band 10；Lower rolling axis 13 is mounted on roller mill support frame 2, and is leaned in conveyer belt 10
At the lower surface of nearly discharge bucket 9, there is gap 14 between lower rolling axis 13 and the lower surface of conveyer belt 10.
It should be noted that in the present embodiment, spacing is identical between multiple live-rollers 11.
It should be noted that in the present embodiment, star-like baiting valve 15 is provided on loading hopper 8, star-like baiting valve 15 is used
In turning on or off loading hopper 8.
Referring to figure 4., cooperation referring to Fig.1, the hexagonal structure in the section of loading hopper 8, one end of loading hopper 8 offer into
Material mouth, the other end offer drain hole, and star-like baiting valve 15 is mounted at feeding inlet, and drain hole is set on transfer assembly 3.
It should be noted that in the present embodiment, the section of discharge bucket 9 is in inverted ladder shape, discharging is offered on discharge bucket
Mouthful, discharge outlet is at the one end of transfer assembly 3 far from loading hopper 8.
It should be noted that in the present embodiment, loading hopper 8 and discharge bucket 9 are respectively at the two sides of roller mill support frame 2
On.
The working principle of the LiFePO4 materiel machining mechanism 1 is:
Star-like baiting valve 15 and motor are opened, material enters in loading hopper 8 from feeding inlet at this time, and then passes through blowing
Mouth enters on conveyer belt 10, and motor drives live-roller 11 to rotate, and then conveyer belt 10 is driven to drive material towards rolling component 5
Direction advance, when by upper rolling axis 12 (band variable-frequency motor) and lower rolling axis 13 (with variable-frequency motor), upper rolling axis 12
(band variable-frequency motor) and lower rolling axis 13 (band variable-frequency motor) are closely compacted it, so that the tightness degree between material
Increase, and then weighed (setting weight) is entered in quantitative pot by discharge bucket 9.
In conclusion the LiFePO4 materiel machining mechanism 1 has roller mill support frame 2, transfer assembly 3, driving assembly
4, rolling component 5, positioning plate 6, material scraping plate 7, loading hopper 8 and discharge bucket 9；Wherein, in the automatic title of kiln dress alms bowl station
Refitting sets front end and increases the roller mill support frame 2, opens star-like baiting valve 15 and motor, and material enters from feeding inlet at this time
It is entered on conveyer belt 10 into loading hopper 8, and then through drain hole, motor drives live-roller 11 to rotate, and then drives transmission
Material is driven to advance towards the direction of rolling component 5 with 10, when by upper rolling axis 12 (band variable-frequency motor) and lower rolling axis 13
When (band variable-frequency motor), upper rolling axis 12 (band variable-frequency motor) and lower rolling axis 13 (band variable-frequency motor) carry out closely it
Compacting so that the tightness degree between material increases, and then enters in quantitative pot (setting weight of being weighed by discharge bucket 9
Amount).Wherein, the material storage tank outlet of loading hopper 8 star-shaped discharge valve controls charging rate, and material passes through the pressure of rolling component 5
After reality, after entering quantitative pot weighing (setting weight), it is reloaded into the saggar waited in feed opening.Also, pass through positioning plate 6
Setting, certain barrier effect is played to material, enable to from drain hole come out material will not to surrounding generate four
Excessive phenomenon；In addition, material scraping plate 7 can be further when at the position that material runs to upper rolling axis 12 and lower rolling axis 13
Ground scrapes the material being attached on upper rolling axis 12 and lower rolling axis 13, enables material whole quilts to the maximum extent
It is tightly compacted.After carrying out rolling to material by upper rolling axis 12 (band variable-frequency motor) and lower rolling axis 13 (band variable-frequency motor)
Increase it and fill real density, to improve dress alms bowl amount, increase kiln furnace output, plays the role of saving production cost.In addition, this dress
It sets very heavy to the material type selecting of conveyer belt 10, upper rolling axis 12 (with variable-frequency motor) and lower rolling axis 13 (with variable-frequency motor)
It wants, conveyer belt material is 316 stainless steel plates, and upper rolling axis 12 and lower rolling axis 13 are zirconia ceramics part, this kind of structure is not only
Furnace output is improved, production efficiency is also improved.The lithium ion battery production system is due to the LiFePO4 object more than having
Expect organisation of working 1, therefore, has the characteristics that structure is simple and can be improved the efficiency of LiFePO4 materiel machining.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of LiFePO4 materiel machining mechanism, it is characterised in that: LiFePO4 materiel machining mechanism includes roller mill
Support frame, transfer assembly, driving assembly, rolling component, positioning plate, material scraping plate, loading hopper and discharge bucket；
The loading hopper and the discharge bucket are separately mounted on the roller mill support frame, and the transfer assembly is mounted on described
On roller mill support frame, the driving component and transfer assembly transmission are connected, and the transfer assembly by described for that will be added
The material transmission entered in hopper is into the discharge bucket；
The rolling component is mounted on the roller mill support frame, and between having between the upper and lower surface of the transfer assembly
Gap, the rolling component are used for the material being compacted in the gap；
The positioning plate is mounted on the roller mill support frame at the position of the loading hopper, and the positioning plate is used for
The material being added by the loading hopper is navigated on the transfer assembly；
The material scraping plate is mounted on the roller mill support frame at the position of the rolling component.
2. LiFePO4 materiel machining according to claim 1 mechanism, it is characterised in that: the transfer assembly includes transmission
Band, the conveyer belt are movably installed on the roller mill support frame, the length extending direction of the conveyer belt with it is described
The length extending direction of roller mill support frame is identical.
3. LiFePO4 materiel machining according to claim 2 mechanism, it is characterised in that: the driving component includes multiple
Live-roller and motor, multiple live-rollers are circumferentially mounted on the conveyer belt, and the motor and live-roller transmission connect
It connects, the motor is by driving the live-roller rotation to drive the conveyer belt rotation.
4. LiFePO4 materiel machining according to claim 3 mechanism, it is characterised in that: the rolling component includes upper roller
Roll axis and lower rolling axis；The upper rolling axis is mounted on the roller mill support frame, and in the conveyer belt close to described
At the upper surface of discharge bucket, there is the gap between the upper rolling axis and the upper surface of the conveyer belt；The lower rolling
Axis is mounted on the roller mill support frame, and in the conveyer belt at the lower surface of the discharge bucket, the lower roll
Rolling has the gap between axis and the lower surface of the conveyer belt.
5. LiFePO4 materiel machining according to claim 4 mechanism, it is characterised in that: between multiple live-rollers
Away from identical.
6. LiFePO4 materiel machining according to claim 1 mechanism, it is characterised in that: be provided with star on the loading hopper
Type baiting valve, the star-like baiting valve are used to open or close the loading hopper.
7. LiFePO4 materiel machining according to claim 6 mechanism, it is characterised in that: the section of the loading hopper is in six
Side shape structure, one end of the loading hopper offer feeding inlet, and the other end offers drain hole, and the star-like baiting valve is mounted on
At the feeding inlet, the drain hole is set on the transfer assembly.
8. LiFePO4 materiel machining according to claim 7 mechanism, it is characterised in that: the section of the discharge bucket is in
Trapezoidal shape, offers discharge port on the discharge bucket, the discharge outlet in the transfer assembly far from the loading hopper one
At end.
9. LiFePO4 materiel machining according to claim 8 mechanism, it is characterised in that: the loading hopper and the discharging
Bucket is respectively on the two sides of the roller mill support frame.
10. a kind of lithium ion battery production system, it is characterised in that: the lithium ion battery production system includes claim 1
To 9 described in any item LiFePO4 materiel machinings mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821259972.2U CN208478498U (en) | 2018-08-06 | 2018-08-06 | A kind of LiFePO4 materiel machining mechanism and lithium ion battery production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821259972.2U CN208478498U (en) | 2018-08-06 | 2018-08-06 | A kind of LiFePO4 materiel machining mechanism and lithium ion battery production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208478498U true CN208478498U (en) | 2019-02-05 |
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ID=65209301
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821259972.2U Active CN208478498U (en) | 2018-08-06 | 2018-08-06 | A kind of LiFePO4 materiel machining mechanism and lithium ion battery production system |
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| CN (1) | CN208478498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021981A (en) * | 2021-02-26 | 2021-06-25 | 浙江野马电池股份有限公司 | Novel positive electrode powder strength control device |
-
2018
- 2018-08-06 CN CN201821259972.2U patent/CN208478498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021981A (en) * | 2021-02-26 | 2021-06-25 | 浙江野马电池股份有限公司 | Novel positive electrode powder strength control device |
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