CN114464923A - Quick-charging type lithium ion battery module structure - Google Patents
Quick-charging type lithium ion battery module structure Download PDFInfo
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- CN114464923A CN114464923A CN202210228419.7A CN202210228419A CN114464923A CN 114464923 A CN114464923 A CN 114464923A CN 202210228419 A CN202210228419 A CN 202210228419A CN 114464923 A CN114464923 A CN 114464923A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6562—Gases with free flow by convection only
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a quick-charging type lithium ion battery module structure which comprises a battery box and a cooling plate, wherein the cooling plate is arranged in the battery box, a cooling liquid channel for cooling liquid to circulate is arranged in the cooling plate, a battery jack is arranged on the cooling plate, a lithium ion battery is inserted into the battery jack, and a ventilation opening communicated with the interior of the battery box is formed in the wall body of the battery box. According to the invention, through arranging the cooling plate and the ventilation opening, two cooling modes of air cooling and water cooling are perfectly combined, on one hand, the contact area between the lithium ion battery and the cooling plate can be increased, the heat dissipation uniformity of the lithium ion battery in the module is improved, on the other hand, the contact area between the lithium ion battery and air can be increased, the natural heat exchange coefficient of the surface of the lithium ion battery is improved, and the heat dissipation capacity of the surface of the battery is increased.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a quick-charging lithium ion battery module structure.
Background
In recent years, to reduce carbon emission and dependence on petroleum, the country has been actively pushing new energy vehicles and, at the same time, pushing the popularization of "oil to electricity" in the field of engineering machinery. Lithium ion batteries, which are core components in the fields of new energy vehicles and engineering applications, also have problems of low capacity and short charging time. The high-capacity lithium ion battery has extremely high potential safety hazard due to the characteristics of the material. On the contrary, the ultra-fast charging lithium ion battery is becoming the research and development center of many enterprises. The ultra-fast lithium battery has the characteristics of high power, can meet the requirement of high-rate discharge, meets the requirement of specific engineering operation, and is favored. In the application process, the ultra-fast charging lithium ion battery is usually used in a group and is formed by connecting a plurality of battery monomers in series and parallel. Because when the super fast lithium battery monomer that fills carries out big multiplying power charge-discharge, can produce a large amount of heats, if the heat that the battery produced can't in time spill, probably lead to monomer electricity core temperature to rise. Excessive temperatures can affect other properties such as battery life, capacity, and even risk thermal runaway.
The heat dissipation of current module mainly has two kinds of modes, first is liquid cooling, take away the heat that module internal battery produced through the coolant liquid in the communicating pipe, but the communicating pipe of design generally is in the upper end of module or the both sides of lower extreme or module, though can guarantee to fully contact with the module space, nevertheless to module internal battery, the heat of the battery internal clearance of cluster-parallel connection, can't in time spill, the heat piles up probably to lose battery performance, cause the effective heat radiating area of liquid cooling not enough, and the inside liquid cooling pipeline of module is bulky, lead to the problem that module space utilization is low, if the communicating pipe is too much, can cause the module intensity not enough, the phenomenon of mechanical damage appears. The second is air cooling, generally, an air inlet and an air outlet are arranged at the end plate of the module, natural air cooling meets the requirement of the low-power module by a natural air cooling heat dissipation mode or a forced air cooling heat dissipation mode, but when the heat is too much, the heat can not be dissipated in time; forced air cooling needs a cooling fan on the air inlet side of the module, but due to the existence of the fan, when the battery modules are used in series and parallel, the strength is not enough, and mechanical damage can be caused.
Therefore, it is one of the technical problems to be solved in the art to provide a fast-charging lithium ion battery module structure capable of improving the heat dissipation capability of the battery module on the premise of ensuring the strength of the battery module.
Disclosure of Invention
In view of the above, the present invention provides a fast charging type lithium ion battery module structure, which aims to solve the above-mentioned disadvantages.
In order to solve the technical problems, the invention adopts the following technical scheme:
a quick-charging lithium ion battery module structure comprises: a battery case and a cooling plate; the cooling plate is arranged inside the battery box; a cooling liquid channel for circulating cooling liquid is arranged in the cooling plate, and a battery jack is arranged on the cooling plate; a lithium ion battery is inserted into the battery jack; the wall body of the battery box is provided with a ventilation opening communicated with the inside of the battery box.
Preferably, the number of the cooling plates is two; the two cooling plates are divided into an upper layer and a lower layer which are arranged in the battery box at intervals.
Preferably, one sides of the two cooling plates are communicated through a communicating pipe; the other sides of the two cooling plates are respectively provided with a liquid inlet pipe and a liquid outlet pipe.
Preferably, the liquid inlet pipe is arranged at the end part of the cooling plate on the upper layer; the liquid outlet pipe is arranged at the end part of the cooling plate at the lower layer.
Preferably, a first slot matched with the communicating pipe is arranged on the wall body of the battery box close to one side of the communicating pipe; and a second slot matched with the liquid inlet pipe and the liquid outlet pipe is formed in the wall body of one side, close to the liquid outlet pipe, of the battery box.
Preferably, the battery case and the wall bodies on two sides adjacent to the first slot are provided with a plurality of ventilation openings.
Preferably, the top end of the battery box is provided with a lead-out opening.
Compared with the prior art, the invention has the following technical effects: on one hand, the invention can realize the water cooling of the lithium ion batteries by arranging the cooling plate with the battery jacks in the battery box and inserting the lithium ion batteries into the battery jacks in sequence and introducing cooling liquid into the cooling plate, each lithium ion battery is tightly contacted with the cooling plate, the liquid cooling area contacted with the lithium ion batteries in the module can be effectively enlarged, and the uniformity of the heat dissipation of the lithium ion batteries in the module is improved, on the other hand, the air cooling can be realized by arranging a plurality of ventilation openings on the wall bodies at two sides of the battery box, so that the external air and the air in the module are mutually communicated, the air cooling can be realized, the larger contact area between the lithium ion batteries in the module and the air can be provided, the natural heat exchange coefficient of the surfaces of the lithium ion batteries is improved, the heat dissipation capacity of the surfaces of the batteries is further improved, and the whole structure combines the two cooling modes of water cooling and air cooling, the strength of the battery module can be guaranteed, meanwhile, the heat dissipation capacity of the battery module is improved to the maximum extent, the performance of the battery is guaranteed, and the service life of the battery is prolonged.
Drawings
Fig. 1 is an exploded view of a fast-charging lithium ion battery module according to the present invention;
fig. 2 is a left side view of a fast charging lithium ion battery module structure according to the present invention;
fig. 3 is a right side view of a fast-charging lithium ion battery module structure according to the present invention;
FIG. 4 is a schematic view of a cooling plate;
in the figure: 1. a battery case; 2. a cooling plate; 3. a battery jack; 4. a lithium ion battery; 5. a vent; 6. a communicating pipe; 7. a liquid inlet pipe; 8. a liquid outlet pipe; 9. a first slot; 10. a second slot; 11. and a guide outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the present invention discloses a fast charging type lithium ion battery module structure, including: a battery case 1 and a cooling plate 2; the cooling plate 2 is disposed inside the battery case 1; a cooling liquid channel for the circulation of cooling liquid is arranged in the cooling plate 2, and a plurality of battery jacks 3 penetrating through the upper surface and the lower surface of the cooling plate 2 are arranged on the cooling plate; each battery jack 3 is internally inserted with 1 lithium ion battery 4; the wall of the battery case 1 is provided with a vent 5 penetrating the inside of the battery case 1.
In the embodiment, the cooling plate 2 is a hollow structure, and a closed cooling liquid channel is formed between the hole wall of the battery jack 3 and the outer wall of the cooling plate 2, so that the large lithium ion battery 4 can be in close contact with the cooling liquid channel;
in the present embodiment, the number of the cooling plates 2 is 2; the 2 cooling plates 2 are divided into an upper layer and a lower layer which are arranged in the battery box 1 at intervals; the battery jacks 3 on the 2 cooling plates 2 are the same in number and are arranged in one-to-one correspondence.
In the present embodiment, the left sides of the 2 cooling plates 2 are communicated by the communicating pipe 6; the right sides of the two cooling plates 2 are respectively provided with a liquid inlet pipe 7 and a liquid outlet pipe 8.
In this embodiment, the number of the communicating pipes 6, the liquid inlet pipe 7 and the liquid outlet pipe 8 is 2.
In the present embodiment, the liquid inlet pipe 7 is disposed on the left side end face of the cooling plate 2 on the upper layer; the liquid outlet pipe 8 is arranged on the left end face of the lower cooling plate 2.
In this embodiment, a first slot 9 adapted to the communication pipe 6 is disposed on a left sidewall of the battery box 1, and the communication pipe 6 is fixed in the first slot 9; a second slot 10 matched with the liquid inlet pipe 7 and the liquid outlet pipe 8 is formed in the right side wall body of the battery box 1, and the liquid inlet pipe 7 and the liquid outlet pipe 8 are fixed in the second slot 10; the stability of the module internal cooling plate 2 and the lithium ion battery 4 can be effectively ensured.
In this embodiment, the battery case 1 is provided with 10 ventilation openings 5 which are symmetrical to each other on both the front and rear side walls.
In this embodiment, the top end of the battery box 1 is provided with an outlet 11 for electrically connecting the battery modules.
In this embodiment, the battery case 1 is constituted by 6 end plates detachably connected.
In other embodiments, the number of the cooling plates 2, the ventilation openings 5, the communicating pipes 6, the liquid inlet pipes 7 and the liquid outlet pipes 8 can be designed according to actual requirements.
The working principle is as follows: during the heat dissipation, the coolant liquid flows in from 2 feed liquor pipes 7, under the impetus of liquid, the coolant liquid flows through upper cooling plate 2, and through communicating pipe 6 flows to lower floor's cooling plate 2, finally flow through drain pipe 8, the coolant liquid is the circulation flow constantly, carry out the water-cooling to lithium ion battery 4, and simultaneously, outside cold air passes through battery case 1 wherein vent 5 on the wall body of one side get into inside battery case 1, and flow out from vent 5 on the wall body of the opposite side, carry out the air-cooling to lithium ion battery 4.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (7)
1. The utility model provides a fill type lithium ion battery module structure soon which characterized in that includes: a battery case (1) and a cooling plate (2); the cooling plate (2) is arranged inside the battery box (1); a cooling liquid channel for cooling liquid to circulate is arranged in the cooling plate (2), and a battery jack (3) is arranged on the cooling plate; a lithium ion battery (4) is inserted into the battery jack (3); and a wall body of the battery box (1) is provided with a ventilation opening (5) communicated with the interior of the battery box (1).
2. The fast-charging lithium ion battery module structure according to claim 1, characterized in that the number of the cooling plates (2) is two; the two cooling plates (2) are divided into an upper layer and a lower layer which are arranged in the battery box (1) at intervals.
3. The fast-charging lithium ion battery module structure according to claim 2, wherein one side of the two cooling plates (2) is communicated through a communicating pipe (6); the other sides of the two cooling plates (2) are respectively provided with a liquid inlet pipe (7) and a liquid outlet pipe (8).
4. The fast-charging lithium ion battery module structure according to claim 3, wherein the liquid inlet pipe (7) is arranged at the end of the upper cooling plate (2); the liquid outlet pipe (8) is arranged at the end part of the cooling plate (2) at the lower layer.
5. The structure of a fast-charging lithium ion battery module according to claim 3, characterized in that a first slot (9) adapted to the communication tube (6) is provided on a wall body of the battery box (1) near one side of the communication tube (6); and a second slot (10) matched with the liquid inlet pipe (7) and the liquid outlet pipe (8) is formed in the wall body of the battery box (1) close to one side of the liquid outlet pipe (8).
6. The fast-charging lithium ion battery module structure according to claim 5, wherein a plurality of ventilation openings (5) are formed in the wall bodies of the battery box (1) at two sides adjacent to the first insertion groove (9).
7. The fast-charging lithium ion battery module structure according to claim 1, wherein the top of the battery box (1) is provided with a lead-out opening (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228419.7A CN114464923A (en) | 2022-03-08 | 2022-03-08 | Quick-charging type lithium ion battery module structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210228419.7A CN114464923A (en) | 2022-03-08 | 2022-03-08 | Quick-charging type lithium ion battery module structure |
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| Publication Number | Publication Date |
|---|---|
| CN114464923A true CN114464923A (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210228419.7A Pending CN114464923A (en) | 2022-03-08 | 2022-03-08 | Quick-charging type lithium ion battery module structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4383407A1 (en) * | 2022-12-06 | 2024-06-12 | Rimac Technology LLC | Semi-submerged module cooling |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628813A (en) * | 2022-02-17 | 2022-06-14 | 宁波二黑科技有限公司 | Quick-charging type lithium battery module |
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2022
- 2022-03-08 CN CN202210228419.7A patent/CN114464923A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628813A (en) * | 2022-02-17 | 2022-06-14 | 宁波二黑科技有限公司 | Quick-charging type lithium battery module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4383407A1 (en) * | 2022-12-06 | 2024-06-12 | Rimac Technology LLC | Semi-submerged module cooling |
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