CN116315512B - Liquid injection device and liquid injection method for lithium battery - Google Patents
Liquid injection device and liquid injection method for lithium battery Download PDFInfo
- Publication number
- CN116315512B CN116315512B CN202310080207.3A CN202310080207A CN116315512B CN 116315512 B CN116315512 B CN 116315512B CN 202310080207 A CN202310080207 A CN 202310080207A CN 116315512 B CN116315512 B CN 116315512B
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- lithium battery
- ultrasonic transducer
- bearing
- liquid injection
- frame
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 118
- 238000002347 injection Methods 0.000 title claims abstract description 58
- 239000007924 injection Substances 0.000 title claims abstract description 58
- 239000007788 liquid Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003792 electrolyte Substances 0.000 claims abstract description 34
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 9
- 230000037452 priming Effects 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 abstract description 9
- 230000008595 infiltration Effects 0.000 abstract description 9
- 238000009736 wetting Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention discloses a liquid injection device and a liquid injection method of a lithium battery, wherein the device comprises the following components: a frame having a work area; the bearing table is arranged in the operation area and provided with a plurality of bearing modes for bearing lithium batteries in different placing states; an ultrasonic transducer disposed on the frame and movable within the working area to bring the ultrasonic transducer into contact with a lithium battery on the carrying table; the liquid injection pipe is arranged in the operation area and is communicated with the liquid injection hole of the lithium battery; according to the method, ultrasonic vibration is generated through the ultrasonic transducer, so that the movement of electrolyte in the lithium battery is increased, the wetting angle of the electrolyte and a solid interface is reduced, a good wetting effect is quickly achieved, and the wetting time is shortened; and the lithium battery under different placing states is borne by the bearing table, so that the lithium battery can vibrate in different positions in an ultrasonic mode, and incomplete infiltration is avoided.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a liquid injection device and a liquid injection method of a lithium battery.
Background
The development of new energy automobile markets brings the vigorous demand of lithium batteries, and also brings intense industry and product competition. At present, the lithium battery needs to be injected with electrolyte in the production process, and after the liquid injection process, the lithium battery needs to be kept stand for a long time, so that the electrolyte is ensured to uniformly diffuse in the battery, and positive and negative active materials and a diaphragm in the battery are fully infiltrated. If the electrolyte is not good in infiltration effect, the transmission of lithium ions between the anode and the cathode can be blocked, and the pole piece which is not contacted with the electrolyte can not participate in electrochemical reaction in the battery, so that a stable solid electrolyte protective film can not be formed on the surface of an electrode active substance, and the multiplying power, the circulation and the safety performance of the battery are directly influenced.
Disclosure of Invention
The invention aims to provide a liquid injection device and a liquid injection method for a lithium battery, and aims to solve the technical problem of full infiltration of electrolyte in the prior art.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the invention provides a liquid injection device of a lithium battery, which comprises:
a frame having a work area;
the bearing table is arranged in the operation area and provided with a plurality of bearing modes for bearing lithium batteries in different placing states;
an ultrasonic transducer disposed on the frame and movable within the working area to bring the ultrasonic transducer into contact with a lithium battery on the carrying table;
and the liquid injection pipe is arranged in the operation area and is communicated with the liquid injection hole of the lithium battery.
Compared with the prior art, the ultrasonic vibration is generated through the ultrasonic transducer, so that the movement of electrolyte in the lithium battery is increased, the wetting angle of the electrolyte and a solid interface is reduced, a good wetting effect is quickly achieved, and the wetting time is shortened; and the lithium battery under different placing states is borne by the bearing table, so that the lithium battery can vibrate in different positions in an ultrasonic mode, and incomplete infiltration is avoided.
In one embodiment, the carrier comprises:
a pedestal;
the two bearing plates are rotationally connected with the pedestal and share the same connecting shaft;
the two lifting assemblies are respectively in driving connection with the two bearing plates so as to form an included angle alpha between the two bearing plates, wherein the included angle alpha is more than or equal to 90 degrees and less than or equal to 180 degrees.
In one embodiment, the two bearing plates have a first position and a second position which can be converted relative to the pedestal under the driving action of the two lifting assemblies;
when the two bearing plates are positioned at the first position, the included angle alpha is equal to 180 degrees, and the bearing plates are used for bearing the lithium batteries in the horizontal state;
when the two bearing plates are in the second position, the included angle alpha is equal to 90 degrees, and the bearing plates are used for bearing the lithium battery in an inclined state.
In one embodiment, the upper sides of the two bearing plates are both provided with limiting pieces in a sliding manner, and the limiting pieces move to the side surfaces of the lithium battery under the action of external force and are attached and fixed with the lithium battery.
In one embodiment, the frame is coupled to the ultrasonic transducer by a triaxial movable assembly to change the position of the ultrasonic transducer within the working area.
In one embodiment, the triaxial movable assembly includes:
a movable shaft slidably coupled to the frame for movement in a first direction;
the movable piece is in sliding connection with the movable shaft and is used for moving along a second direction on the sliding shaft; and one end of the telescopic piece is connected with the movable piece, and the other end of the telescopic piece is connected with the ultrasonic transducer and is used for enabling the ultrasonic transducer to move along a third direction so as to be far away from or close to the lithium battery.
In one embodiment, the frame and the movable shaft each have an indication record point thereon;
the frame is matched with the indication recording point on the movable shaft so that the ultrasonic transducer is positioned and fixed at a corresponding position on the lithium battery.
The invention also provides a liquid injection method of the lithium battery, which adopts the liquid injection device of the lithium battery and comprises the following steps:
s1: placing the lithium battery on the bearing table in an inclined state;
s2: electrolyte is injected into the lithium battery in batches, and the ultrasonic transducer is attached to the corresponding position of the lithium battery according to the injection batch.
In one embodiment, the step S2 specifically includes:
s21: dividing the injection amount of electrolyte of a lithium battery into n batches, and determining the corresponding immersed position of the amount of each injection batch in the lithium battery;
s22: determining an ultrasonic transducer according to the immersion position of each injection batch, and setting indication recording points on the frame and the movable shaft;
s23: and moving the ultrasonic transducer according to the current injection batch and the corresponding indication record point and enabling the ultrasonic transducer to be attached to the lithium battery.
In one embodiment, the method of priming further comprises:
s31: after the injection of the electrolyte of the last batch is completed, the lithium battery is placed on a bearing table in a horizontal state, and then the electrolyte is refilled;
s32: ultrasonic vibration is performed using an ultrasonic transducer.
For a better understanding and implementation, the present invention is described in detail below with reference to the drawings.
Drawings
FIG. 1 is a schematic view of a liquid injection device of a lithium battery of the present application; (lithium battery in an inclined state)
Fig. 2 is a schematic view of a liquid injection device of a lithium battery of the present application. (lithium battery in horizontal State)
Reference numerals illustrate:
10 frame, 210 pedestal, 220 bearing plate, 221 limiting piece, 230 lifting assembly, 310 movable shaft, 320 movable piece, 40 lithium battery and 410 winding body
Detailed Description
In order to better illustrate the present invention, the present invention will be described in further detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the embodiments of the present application, are within the scope of the embodiments of the present application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims. In the description of this application, it should be understood that the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and are not necessarily used to describe a particular order or sequence, nor should they be construed to indicate or imply relative importance. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The invention provides a liquid injection device of a lithium battery, which comprises: a frame 10 having a work area; the bearing table is arranged in the operation area and provided with a plurality of bearing modes for bearing the lithium batteries 40 in different placing states; an ultrasonic transducer provided on the frame 10 and movable within the work area so as to be in contact with the lithium battery 40 on the carrying table; and a liquid injection pipe provided in the operation area, the liquid injection pipe communicating with the liquid injection hole of the lithium battery 40.
Specifically, a worker places the lithium battery 40 on a bearing table in an inclined state, injects electrolyte into the lithium battery 40 in batches by means of the liquid injection pipe, and applies an ultrasonic transducer to the corresponding position of the lithium battery 40 according to the injection batch to perform ultrasonic vibration; compared with the prior art, the ultrasonic vibration is generated through the ultrasonic transducer, so that the movement of the electrolyte in the lithium battery 40 is increased, the wetting angle of the electrolyte and a solid interface is reduced, a good wetting effect is quickly achieved, and the wetting time is shortened; after the injection of the electrolyte of the last batch is completed, the lithium battery 40 is placed on the bearing table in a horizontal state, and ultrasonic vibration is performed again by using the ultrasonic transducer; lithium batteries 40 in different placing states are borne by the bearing table, so that the lithium batteries 40 can vibrate in different positions in an ultrasonic mode, and incomplete infiltration is avoided.
In one embodiment, the carrier comprises: a pedestal 210; two support plates 220, wherein the two support plates 220 are rotatably connected with the pedestal 210 and share the same connecting shaft; and two lifting assemblies 230 which are respectively in driving connection with the two bearing plates 220 so as to form an included angle alpha between the two bearing plates 220, wherein the included angle alpha is more than or equal to 90 degrees and less than or equal to 180 degrees. The two support plates 220 in this embodiment share the same connecting shaft to be rotatably connected with the pedestal 210 and form a rotating end, and the two lifting assemblies 230 rotate the two support plates 220 relative to the rotating end through lifting actions so as to change the included angle between the two support plates 220, thereby carrying the lithium battery 40 in an inclined state; in addition, when the lifting ranges of the two lifting assemblies 230 are different, the angles between the two supporting plates 220 and the pedestal 210 are different, so that the lithium battery 40 has different inclination states.
Further, the two lifting assemblies 230 each include a fixed end and a driving end, and the fixed ends are connected and fixed with the pedestal 210 through a fixed plate; the driving end is rotatably connected to the lower side of the supporting plate 220. Preferably, the lifting assembly 230 may use an air cylinder.
Further, the two support plates 220 have a first position and a second position which are switchable with respect to the pedestal 210 under the driving action of the two lifting assemblies 230; when the two support plates 220 are in the first position, the included angle α is equal to 180 °, so as to support the lithium battery 40 in the horizontal state; when the two support plates 220 are in the second position, the included angle α is equal to 90 °, and the support plates are used for supporting the lithium battery 40 in an inclined state. In the present embodiment, the lithium battery 40 in two states, i.e., a horizontal state and an inclined state, is mainly used; by setting the positions of the two support plates 220, such as the first position and the second position, in advance, the positions can be quickly changed to support the lithium battery 40.
Further, the upper sides of the two support plates 220 are provided with a limiting piece 221 in a sliding manner, the limiting piece 221 moves to the side surface of the lithium battery 40 under the action of external force and is attached to the lithium battery 40, specifically, the upper sides of the two support plates 220 are provided with sliding rails, the limiting piece is arranged on the sliding rails in a sliding manner and moves along the sliding rails under the operation of workers, so that the limiting piece moves to the side surface of the lithium battery 40 and is attached to the lithium battery 40 to be fixed or is far away from the lithium battery 40, and the fixing of the lithium battery 40 is released.
When the lithium battery 40 is in an inclined state, one of the limiting pieces is attached to the left side surface of the lithium battery 40, and the other limiting piece is attached to the top surface of the lithium battery 40; and when the lithium battery 40 is in a horizontal state, one of the limiting pieces is attached to the left side surface of the lithium battery 40, and the other limiting piece is attached to the right side surface of the lithium battery 40.
It should be noted that, the limiting piece can be fixed on the sliding rail through magnetic attraction fixing or fastening fixing.
In one embodiment, the frame 10 is coupled to the ultrasonic transducer by a tri-axial movable assembly to change the position of the ultrasonic transducer within the work zone. The position of the ultrasonic transducer is changed through the triaxial movable assembly, so that the position of the ultrasonic transducer can be changed rapidly.
Further, the triaxial movable assembly includes: a movable shaft 310 slidably coupled to the frame 10 for movement in a first direction; a movable member 320 slidably coupled to the movable shaft 310 for movement in a second direction on the sliding shaft; and a telescopic member having one end connected to the movable member 320 and the other end connected to the ultrasonic transducer, for moving the ultrasonic transducer in a third direction to be away from or close to the lithium battery 40.
Specifically, the frame 10 is formed by overlapping a plurality of brackets, including a vertical bracket in the vertical direction and a horizontal bracket in the horizontal direction; the movable shaft 310 is slidably connected to the vertical frame of the frame 10 and moves along the length direction of the vertical frame, and at this time, the first direction is the vertical direction; the movable member 320 is slidably connected to the movable shaft 310, and is configured to move along a second direction on the sliding shaft, where the second direction is a horizontal direction; the position of the ultrasonic transducer on the lithium battery 40 can be determined by the movement of the movable element 320 along the second direction on the sliding shaft and the movement of the sliding shaft along the first direction, and finally the ultrasonic transducer is moved to the direction close to the lithium battery 40 and attached to the lithium battery 40 by the extending action of the telescopic element so as to prepare for the next ultrasonic vibration; and through the retracting action of the telescopic piece, the ultrasonic transducer moves to the direction far away from the lithium battery 40, so that preparation is made for replacing the lithium battery 40 and changing the state of the lithium battery 40, and the influence on the operation of workers is avoided.
In another embodiment, when the movable shaft 310 is slidably connected to the transverse frame of the frame 10, the first direction is the horizontal direction, and the second direction is the vertical direction.
Further, the frame 10 and the movable shaft 310 each have an indication recording point thereon; the frame 10 and the indication recording point on the movable shaft 310 cooperate to position and fix the ultrasonic transducer at a corresponding position on the lithium battery 40. The present embodiment records the movement positions of the movable shaft 310 and the movable member 320 by setting an indication recording point so that a worker can quickly change the ultrasonic transducer to a designated position according to the indication of the indication recording point.
The invention also provides a liquid injection method of the lithium battery, which applies the liquid injection device of the lithium battery 40, comprising the following steps:
s1: placing the lithium battery 40 on a bearing table in an inclined state, moving a limiting piece, enabling the limiting piece to be attached to and fixed with the lithium battery 40, and after fixing the position of the lithium battery 40, enabling the liquid injection pipe to be in butt joint communication with a liquid injection hole of the lithium battery 40 so as to prepare for liquid injection in the next step;
s2: electrolyte is injected into the lithium battery 40 in batches, and the ultrasonic transducer is attached to the corresponding position of the lithium battery 40 according to the injection batches. The step S2 specifically includes:
s21: dividing the electrolyte injection amount of the lithium battery 40 into n batches, and determining the immersion position corresponding to the amount of each injection batch in the lithium battery 40;
s22: determining an ultrasonic transducer according to the immersion position of each injection batch, and setting indication recording points on the frame 10 and the movable shaft 310;
s23: and according to the current injection batch and the corresponding indication record point, the ultrasonic transducer is moved and attached to the lithium battery 40.
Specifically, if the lithium battery 40 is placed on the support table in a horizontal state during the electrolyte infiltration process, the electrolyte gradually decreases with the lapse of the infiltration time, resulting in that the liquid level of the electrolyte of the first lot is lower than the lower side of the jelly roll 410, and the ultrasonic vibration does not reach the desired effect. The present application innovatively uses the inclined lithium battery 40 for filling, and even if the electrolyte decreases with the lapse of the infiltration time, the lower side surface of the jelly-roll 410 is still partially immersed in the electrolyte.
Before the liquid injection, the relation between the injected electrolyte and the immersed position of the electrolyte in each injection batch can be obtained according to calculation or experiment, so that the position of the ultrasonic transducer on the lithium battery 40 is determined, and then the indication recording point is set, so that the position of the ultrasonic transducer on the lithium battery 40 is conveniently adjusted according to the indication recording point.
The liquid injection method further comprises S3: s31: after the injection of the electrolyte of the last batch is completed, the lithium battery 40 is placed on the bearing table in a horizontal state, and the electrolyte is refilled; s32: ultrasonic vibration is carried out by using an ultrasonic transducer so as to further infiltrate the whole electrolyte under the condition that the electrolyte is completely injected, thereby achieving good infiltration effect.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (6)
1. A liquid injection device for a lithium battery, comprising:
a frame having a work area;
the bearing table is arranged in the operation area and provided with a plurality of bearing modes for bearing lithium batteries in different placing states;
an ultrasonic transducer disposed on the frame and movable within the working area to bring the ultrasonic transducer into contact with a lithium battery on the carrying table;
the liquid injection pipe is arranged in the operation area and is communicated with the liquid injection hole of the lithium battery;
the bearing table comprises:
a pedestal;
the two bearing plates are rotationally connected with the pedestal and share the same connecting shaft;
the two lifting assemblies are respectively in driving connection with the two bearing plates so as to form an included angle alpha between the two bearing plates, wherein the included angle alpha is more than or equal to 90 degrees and less than or equal to 180 degrees;
the upper side surfaces of the two bearing plates are provided with limiting pieces in a sliding mode, and the limiting pieces move to the side surfaces of the lithium battery under the action of external force and are attached and fixed with the lithium battery.
2. The lithium battery priming device of claim 1, wherein:
the two bearing plates are provided with a first position and a second position which can be converted relative to the pedestal under the driving action of the two lifting assemblies;
when the two bearing plates are positioned at the first position, the included angle alpha is equal to 180 degrees, and the bearing plates are used for bearing the lithium battery in a horizontal state;
when the two bearing plates are in the second position, the included angle alpha is equal to 90 degrees, and the bearing plates are used for bearing the lithium battery in an inclined state.
3. The lithium battery priming device of claim 1, wherein:
the frame is connected with the ultrasonic transducer through a triaxial movable assembly so as to change the position of the ultrasonic transducer in the working area.
4. The lithium battery priming device of claim 3, wherein said tri-axial movable assembly comprises:
a movable shaft slidably coupled to the frame for movement in a first direction;
the movable piece is in sliding connection with the movable shaft and is used for moving on the movable shaft along a second direction;
and one end of the telescopic piece is connected with the movable piece, and the other end of the telescopic piece is connected with the ultrasonic transducer and is used for enabling the ultrasonic transducer to move along a third direction so as to be far away from or close to the lithium battery.
5. The lithium battery priming device of claim 4, wherein:
the frame and the movable shaft are provided with indication recording points;
the frame is matched with the indication recording point on the movable shaft so that the ultrasonic transducer is positioned and fixed at a corresponding position on the lithium battery.
6. A method for injecting liquid into a lithium battery, using the lithium battery injection device according to any one of claims 1 to 5, comprising:
s1: placing the lithium battery on the bearing table in an inclined state;
s2: injecting electrolyte into the lithium battery in batches, and attaching an ultrasonic transducer to the corresponding position of the lithium battery according to the injection batches; the step S2 specifically includes:
s21: dividing the injection amount of electrolyte of a lithium battery into n batches, and determining the corresponding immersed position of the amount of each injection batch in the lithium battery;
s22: determining an ultrasonic transducer according to the immersion position of each injection batch, and setting indication recording points on the frame and the movable shaft;
s23: according to the current injection batch and the corresponding indication record point, the ultrasonic transducer is moved and attached to the lithium battery;
the liquid injection method further comprises the following steps:
s31: after the injection of the electrolyte of the last batch is completed, the lithium battery is placed on a bearing table in a horizontal state, and then the electrolyte is refilled;
s32: ultrasonic vibration is performed using an ultrasonic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310080207.3A CN116315512B (en) | 2023-02-02 | 2023-02-02 | Liquid injection device and liquid injection method for lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310080207.3A CN116315512B (en) | 2023-02-02 | 2023-02-02 | Liquid injection device and liquid injection method for lithium battery |
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| Publication Number | Publication Date |
|---|---|
| CN116315512A CN116315512A (en) | 2023-06-23 |
| CN116315512B true CN116315512B (en) | 2024-02-23 |
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| CN212255127U (en) * | 2020-05-26 | 2020-12-29 | 国核电力规划设计研究院有限公司 | Binocular imaging device for solar cell panel detection |
| CN212931853U (en) * | 2020-08-27 | 2021-04-09 | 四川轻化工大学 | Slurry pool for debris flow impact force experiment |
| CN215355136U (en) * | 2021-03-11 | 2021-12-31 | 广州中国科学院工业技术研究院 | Lithium battery electrolyte configuration equipment |
| CN112919368A (en) * | 2021-03-30 | 2021-06-08 | 广西武宣东磊矿业有限公司 | Auxiliary device for installing vibrating motor of vibrating screen |
| CN114171801A (en) * | 2021-11-30 | 2022-03-11 | 天津市捷威动力工业有限公司 | Electrolyte infiltration method of soft package battery core |
| CN217589370U (en) * | 2021-12-07 | 2022-10-14 | 湖北亿纬动力有限公司 | Battery liquid injection device |
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